2 lcd monitors in the front meaning quotation

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4K UHD (Ultra-High-Definition) is a 16:9 video resolution with 3840 x 2160 pixel resolution. It is called 4K because the 4K cinema standard (DCI 4K) stretches horizontally to over 4,000 pixels (4096 x 2160). While it is the newest resolution in the consumer market, it is already being relabelled to UHD-1 to make way for 8K which will take over as UHD-2. 4K is exactly double the horizontal and vertical resolution of Full HD/FHD (1920 x 1080) for a total of 4 times as many pixels.

A resistive touch screen monitor is composed of a glass panel and a film screen, each covered with a thin metallic layer, separated by a narrow gap. When a user touches the screen, the two metallic layers make contact, resulting in electrical flow. The point of contact is detected by this change in voltage, and registers the X & Y coordinates from a touch.

24VDC is a direct current power standard growing in popularity due to its increased safety and cost savings. VAC systems will have voltages above 100V, whereas 24VDC keeps the voltage at a much safer level.

Acrylonitrile butadiene styrene (ABS) is a common thermoplastic polymer. In layman’s terms, it is a form of plastic with higher impact resistance and toughness. ABS polymers are resistant to aqueous acids, alkalis, concentrated hydrochloric and phosphoric acids, alcohols and animal, vegetable and mineral oils. ABS enclosures are also much easier to customize with colors since it allows paint to adhere more than steel.

AC/DC refers to different types of current that can run through electric circuits. Monitor rated rated AC/DC will operate on 110-220VAC, as well as 12VDC. AC provides more power, but DC is safer to use.

All-in-One refers to monitors with mini computer system embedded into the monitor. This allows for ease of use and space saving since an external computer is not needed but will raise the price of the monitor. Also, if an all-in-one is damaged and in needs replacing, it is more costly to replace an all-in-one than a stand-alone monitor or touch screen.

Ambient light is any light in the surrounding environment. It is sometimes called “available light” since it refers to any source of light that is not explicitly supplied by the monitor. An ambient light sensor can be added to a monitor to automatically adjust the monitor’s brightness to best match the ambient light.

AG glass is added to protect the monitor’s LCD panel. When sunlight hits AG glass, the light energy is dispersed equally across the entire screen; these are no reflection “hot spots”. The AG coating results in a matte finish on the screen.

AR glass is added to protect the monitor’s LCD panel. When sunlight hits AR glass, the light energy is consolidated into a small but very bright reflected spot of light; the image on the rest of the screen stays in tact. By tilting or turning the monitor a few degrees, the operator can usually eliminate the bright spot entirely from his screen, and see clear start images even in direct bright sunlight.

The aspect ratio of a LCD display is the proportional relationship of its width compared to its height. The two numbers are commonly separated by a colon. The most common aspect ratios are 16:9 (aka widescreen) and 4:3 (closer to the shape of a square monitor, such as old CRT’s and TV’s). It is best to choose a monitor with the same aspect ratio as your video signal. You cannot customize a monitor’s native aspect ratio, so it is critical to know the aspect ratio of your incoming video signal beforehand.

Some monitors include built-in speakers that can play audio from your source. If a monitor does not have speakers built in, you may be able to run an aux cable from the audio output to an external speaker.

Auto re-start after power loss is a built-in feature, standard with all TRU-Vu monitors which ensures video is immediately displayed upon restoration of power following a power loss.

An automated ambient light sensor (sometimes shortened to ALS) on an LCD monitor allows for automatic brightness adjustment based on the environmental light surrounding the monitor. Ambient Light Sensors allow users to set brightness and timing ranges to control the intensity of these automatic adjustments. This means users have the ability to specify the maximum and minimum brightness levels the Ambient Light Sensor can adjust between. Additionally, you can specify how long you would like the sensor to wait before adjusting the brightness (between 1 and 60 seconds).

The bezel is the outside frame or edge that surrounds the monitor’s front glass or LCD panel. For aesthetics or hygiene, some people prefer frameless, Zero-Bezel monitors.

The bit depth is sometimes referred to as color depth and when referring to a pixel can be defined as bits per pixel. It defines how many colors the monitor can reproduce. The more bits, the more colors. The number of colors available for any X-bit image is just 2X. Therefore, a 24-bit (224)color monitor will produce 16.7 million colors.

Luminance (AKA Brightness) is the measurement of how much light a monitor emits. The SI unit for luminance is Candela per Square Meter (Cd/m²). One Cd/m² is equal to one “nit,” a more common term with LCD monitors. The measure of nits a LCD display emits will be the main factor in determining the monitor’s perceived brightness. A monitor luminance of around 250-350 nits will work well indoors and most monitors fall in this range. 400-700 nits would be ideal for daylight use (Daylight Viewable monitors). 1,000 nits or more is required for viewing in direct, bright sunlight (Sunlight Readable monitors)

Bayonet Neill–Concelman (BNC) is a locking connector that carries composite audio or video over a single coaxial cable. The name comes from the two inventors, Paul Neill and Carl Concelman, and the bayonet mount locking mechanism. BNC is used for composite audio or video on video devices. RCA connector jacks can be used with BNC equipment by inserting an adapter.

BNC Loop-Thru refers to a BNC input and BNC output on the same device. This will “loop” the input signal back out of the device (as an output) to send to other equipment. For example, BNC Loop-Thru enables you to have a camera connected to a monitor that displays the image. The monitor then sends those same video images to second monitor (in another area) or to a DVR (digital video recorder).

Candela per square meter (cd/m2) is the SI unit of luminance. 1 cd/m2 is equal to 1 nit of brightness. Both nit and cd/m2 measure the amount of light emitted from a monitor. The higher the number, the brighter the monitor screen.

Coaxial cable (Coax) was first used in 1858 and is still used today for cable, phone, internet, and many other radio frequency signals. It is called Coaxial because the inner conductor and the outer shied (both copper) share a geometric axis.

The color gamut is a certain complete subset of colors. Gamut is adopted from the field of music where it means the set of pitches of which musical melodies are composed. In color theory, the color gamut of a certain device or process is that portion of the color space that can be represented or reproduced. When certain colors cannot be expressed within a particular color model, those colors are “out of gamut.” A color gamut is the range of colors that a monitor is capable of reproducing.

Color temperature is a way to describe light appearance provided by a video source or monitor. Color temperature is measured in Kelvin (K) and typically ranges from 2500K to 7500K. Higher Kelvin results in a cooler, bluer, daylight color temperature. Lower Kelvin results in a warmer, redder, candlelight color temperature. A balanced color temperature where the colors look natural for the scene is considered “white balanced.” This is when the color white looks like a true white without any other color present. NTSC, PAL, and now ATSC standards suggest video content on monitors to be displayed using 6500K. However, not all content adheres to this, so monitors may need to be tuned for the content to achieve white balance.

BNC is a composite analog signal that transmits either audio or video with a locking connector. BNC cables give true 75 ohm resistance and includes video, color, and sync signals all within one cable.

The contrast ratio measures the range of brightness to darkness the monitor can produce. The end ratio is presented as X:1, where X represents the size of the range. The higher the number, the better the image quality. This is measured by showing the whitest white and comparing it to the blackest black on screen. The static contrast ratio is tested using the same image (usually a black and white checkered display) on screen to measure the range. Dynamic contrast ratio is unrealistic, and will inflate this number greatly by adjusting the screen settings during testing.

The control of a LCD monitor is usually accomplished through the OSD (On-Screen Display) via a small group of pushbuttons on the rear or front of the monitor, or via an IR remote that allow the user to access the monitor’s settings.

CRT stands for Cathode-Ray Tube. It was the original technology used in the first television sets. CRT research dates back to the early 1890s but wasn’t commercially produced as television sets until 1934. The CRT is a vacuum tube containing electron guns that shoot electrons onto a fluorescent screen. Magnetic deflection from different types of coils is used to direct the electrons to form the signal’s picture. This is why original TV sets had such large backs; all of these components needed room to shoot, deflect, and catch electrons.

A monitor with Dim-to-Black control means the monitor’s up and down arrow buttons have been programmed to adjust the monitor’s brightness and contrast at the same time. Dim-to-Black is useful in applications where the monitor is constantly used in different lighting environments. Rather than searching through the OSD (On-Screen Display) menu each time to adjust the screen’s brightness, Dim-to-Black allows for manual transitions on the fly. This is different from the Ambient Light Sensor, which adjusts the monitor’s brightness automatically.

Display Colors is the number of colors the monitor can display. The higher, the better. These numbers are always shown in millions unless it is a dated monitor. Standard LCD monitors have 16.7 million colors, which equals 24-bit color. Color bits and display colors are directly related since display colors is based on the power of two. This is because 2 raised to the 24th power comes out to ~16.7 million.

DVI stands for Digital Video Interface; it is a video-only signal. DVI uses a locking connector. DVI-I (Integrated) works with both digital and analog signals, one of the only connectors to allow this. DVI-D (Digital) works with digital only signals and allows for higher resolution. 1920 x 1200 is the highest resolution DVI can support, but only up to 15 feet. Lower resolutions (1280 x 1024) can be transmitted up to 49 feet.

EMC stands for Electromagnetic compatibility. EMC is the ability of electrical equipment and/or systems to function acceptably in their electromagnetic environment. EMC focuses on the emission, susceptibility, and immunity of electronic equipment in regards to EMI (electromagnetic interference).

EMI stands for Electromagnetic Interference. EMI is when an external electronic source disrupts another electronic device’s operation with competing electromagnetic (EM) fields. This only occurs when the EM field is strong enough to upset the operation of other electronic equipment. Broadcast stations and other large transmitters can cause man-made EMI, while anomalies such as solar flares can cause naturally occurring EMI.

The enclosure of a monitor is what surrounds the screen and all other components. Enclosures offer different looks, feels, and advantages and disadvantages. For example, most waterproof monitors will have 304 stainless steel or aluminum to avoid corrosion. Lightweight monitors will generally feature a ABS enclosure, a nylon-reinforced plastic for added durability. Powder-coated steel is another material used in many industrial-grade monitor solutions which offers increased protection and durability.

A monitor’s enclosure rating will tell you the standard rating regarding its resistance to moisture, dust and solid objects.. Two of the most common standardized ratings are IP (Ingress Protection) and NEMA (National Electrical Manufacturer Association).

A half-sine shock wave is a shock impulse with the shape of a half sine wave. These are part of classical shock testing and shows how the object responds to shock over time. Half-sine waves have a more curved shock wave than haversine shock waves, although similar.

HDCP stands for High-Bandwidth Digital Copyright Protection. HDCP protects digital copyrighted content as it travels from a device to your TV. Services like Netflix require an HDCP to be present somewhere within your signal flow to view their content. Almost all digitally compatible devices today have some form of HDCP built in.

HDMI stands for High Definition Multimedia Interface; it transmits both audio and video digital signals. HDMI is similar to DVI except the connector does not lock in place. HDMI is able to carry an uncompressed A/V signal up to 15 feet. There are different categories of HDMI with the newest one (HDMI 2.1) capable of reaching 10K resolution. In general, HDMI can produce resolutions of FHD (1920×1080) and above or below. It is one of the most versatile cables currently available with the only downside being its lack of long cable runs and added cost to the manufacturer’s royalties.

Hue is just another word for color; each position around the color wheel represents a different hue. For monitors, you can adjust the overall picture’s hue to give a look that is closer to the desired hue.

The humidity specification on the LCD monitor data sheets relate to relative humidity (RH) and is shown as a percentage. Relative Humidity measures water vapor, but relative to the temperature of the air. It measures the amount of actual water vapor in the air compared to the total amount of vapor that can occur at the current temperature. The same absolute humidity level but in two different climates will result in two different relative humidities. The relative humidity would be higher in the cooler climate, and lower in the warmer climate. The higher the percentage, the more humid it is relative to the temperature in the environment. At 100% relative humidity, the air is saturated and is at its dew point.

Hertz (Hz) is the unit used to measure the refresh rate of a monitor. The refresh rate refers to the number of times a monitor can show a static image per second. This is similar to frame rate, but slightly different. Frame rate refers to the content itself, refresh rate refers to the display. Too low of a refresh rate on a monitor with high frame rate content will result in excessive motion blur.

The input signal is the signal that comes ‘into’ a device from another source. For example, if a computer is connected to a monitor, the signal coming from the computer to the monitor is the monitor’s input. Inputs on a device determine which signals can be interpreted and brought into the device.

Interlaced is a method of scanning video. Video sources that have the letter i in them are interlaced (e.g. 1080i). This method of scans the even and odd numbered lines as two separate fields. First the even scan lines are drawn, then the odd scan lines. One each of complete even and odd scan line fields make up one video frame. Interlaced video will double the perceived frame rate of a display without consuming extra bandwidth. However, interlacing effects like combing can occur if the interlaced video is displayed using a slower speed than it was captured, or in still frames.

The Ingress Protection Code (IP) is an internationally accepted standard that classifies and rates the degree of protection provided by enclosures against intrusion, dust, accidental contact, and water. This rating provides a standardized metric to compare different products’ performance with each other. The first number refers to protection against solids, the second number refers to protection against liquids. If there is an X in the rating, it means testing was not performed for that specific protection. For a more detailed description on IP Ratings follow the link.

IR (Infrared) touch screen monitors do not overlay the display with an additional screen or screen sandwich. Instead, infrared monitors use IR emitters and receivers to create an invisible grid of light beams across the screen. This ensures the best possible image quality. When an object interrupts the invisible infrared light beam, the sensors are able to locate the touch point, and send the X and Y coordinates to the controller. IR touch screens generally feature larger screen sizes.

Isotropic Failure results when direct sunlight and high ambient temperatures combine to overheat the LCD screen. The screen will darken, or turn completely black. If the monitor’s internal temperature approaches 100°C (212°F) temperatures, the LCD panel will suffer irreparable harm. Please note that a monitor’s internal temperature may far exceed ambient temperatures when positioned in direct, bright sunlight. Therefore, the rated operating temperature of the LCD panel and the overall monitor must be sufficient to survive the worst-case heat scenarios that the monitor will be exposed to.

LCD stands for Liquid Crystal Display. The LCD panel directs the light from the backlight and produces the picture we see on the monitor’s screen. LCD panels use tiny liquid crystals to shift the light from one color to the next. The crystals are controlled using voltage from the monitor. Different LCD panels offer different advantages and can vary the overall cost of the monitor greatly.

LED Backlights are the most common backlights used in LCD flat panel displays today. The LED backlights are what illuminates the LCD panel. Without any backlights, an image could not be seen. A monitor’s life is based on the life of the backlights because they are so essential. LED backlights succeeded CCFL backlights and are more energy efficient, offer better contrast and brightness, and greater color range. LED backlights must be used with LCD panels to display an image.

Luminance (AKA Brightness) is the measurement of how much light a monitor emits. The SI unit for luminance is Candela per Square Meter (Cd/m²). One Cd/m² is equal to one “nit,” a more common term with LCD monitors. The measure of nits a LCD display emits will be the main factor in determining the monitor’s perceived brightness. A monitor luminance of around 250-350 nits will work well indoors and most monitors fall in this range. 400-700 nits would be ideal for daylight use (Daylight Viewable monitors). 1,000 nits or more is required for viewing in direct, bright sunlight (Sunlight Readable monitors)

Virtually all TRU-Vu monitors feature VESA mount holes on the rear of the monitor. VESA is an industry-standard hole pattern compatible with nearly any mounting solution on the market. The hole patterns are measured in millimeters, from center-to-center, for each of the 4 holes, in a square or rectangular pattern, such as 75 x 75mm, 100 x 100, 200 x 100, etc.

MTBF stands for Mean Time Between Failure. A monitor’s MTBF refers to the time period when the the monitor’s backlights will dim to 50% of the original brightness. MTBF is typically measured in hours. If the backlights of an LCD monitor with standard brightness levels dim to 50%, it is considered unusable because the screen is not bright enough for any use.

However, with Sunlight Readable monitors, things are different. If a Sunlight Readable monitor, which features at least 1,000 nits of brightness, dims down to 50% brightness, the monitor still has 500 nits of brightness. 500 nits of brightness is still twice the brightness of standard indoor monitors. Therefore, the Sunlight Readable monitor can be repurposed for use in other applications where it will not be subjected to direct sunlight.

Multi-touch refers to the ability for a touchscreen to interpret multiple touch points being triggered at the same time. Common multi-touch actions include zooming in by performing a pinch-like maneuver, or pressing two buttons at the same time. Multi-touch is the overarching term that refers to any touchscreen action that accepts more than one touch point being triggered. This is common with P-Cap and some IP touch screens.

The MVA panel is a type of LCD panel. MVA panels are newer than TN panels and offer wider viewing angles (typically 178° x 178°) This allows the monitor to be used in landscape or portrait mode, or mounted above eye level, with no loss of image quality.

The National Electrical Manufacturers Association (NEMA) defines standards used in North America for various grades of enclosures used in industrial applications. Each enclosure is rated to protect against personal access to hazardous parts and environmental conditions. The X in NEMA ratings indicates additional corrosion protection. For a more detailed description, see NEMA ratings.

Nits is the measurement of luminance. Nit is believed to come from the Latin word nitere, to shine. It is the measure of light emitter in a unit area and frequently used to specify the brightness of a display. Standard displays feature 200-300 nits, whereas Sunlight Readable Monitors range from 1,000 – 2,500 nits.

NTSC and PAL are analog video standards used across the world to transmit video content. For North America and most of South America, the standard is NTSC. For the rest of the world, the standard is PAL. SECAM is a far less widely implemented standard that was first used in France, but is now transitioning to DVB.

NTSC stands for the National Television System Committee. It is the analog video standard used in North America and most of South America. This standard will transmit 30 frames each second at 60Hz with each frame being made up of 525 individual scan lines. The digital standard to succeed NTSC is ATSC which stands for Advanced Television System Committee standards.

Open frame monitors are provided without typical enclosures. They are often used for limited-space applications, or when the display will be integrated into a machine or system. Open frame monitors and touch screens are available in two configurations: all components are mounted to the rear of the LC panel, or in a “kit” version, the LCD panel and all other components are provided loose, enabling the end user to mount them in any way they desire.

The operating temperature of the LCD video display is the range of temperature that is deemed acceptable for using the monitor. Operating outside the high end of this range can result in isotropic failure, or the components can begin to fail at temperatures below the low end of the range. The storage temperature of a monitor will always be equal to or greater than the operating temperature since monitors generate heat when operated.

Adding glass over a LCD panel does protect it. However, this also causes increased internal reflections, both from external light as well as from the LCD’s own backlights, thereby reducing image quality. It also creates an air gap between the glass and the panel.

Optical Bonding is the process of injecting an optical-grade resin into the gap between the LCD panel and the glass. This eliminates internal reflections, eliminates the possibility of internal condensation, increases the contrast ratio, and improves the image quality.

Landscape orientated monitors are long like a sprawling landscape — they stretch left to right. Landscape oriented monitors are the most common for viewing since it is the industry standard for almost all media, from film to broadcast TV.

It is important to know your end goal with orientation. For example, sunlight readable monitors have polarization filters specified to the monitor’s native orientation. If you flip the orientation of the signal, you may also need to flip the polarizing filters if being viewed by someone wearing polarized sunglasses.

Viewing angles are another important factor to consider when turning a monitor 90° into portrait orientation. If the top and bottom viewing angles of your monitor are not identical, and are less than 178°, then one side of the screen will have a different viewing angle than the other side when flipped into portrait orientation.

The output signal is the signal that is transmitted ‘out’ of a source. For example, if you have a computer connected to a monitor, whatever signal is coming ‘out’ of your computer into the monitor is the output. Outputs on a device determine which signals can be transmitted and sent out of the device. Make sure the output matches the input on the receiving device.

Overscan is when part of the video signal is outside the visible bounds of the screen. This occurs when the input video signal has a larger resolution than the monitor’s maximum resolution. Thankfully, this is not much of an issue any more with added standards (title and action safe) and expanded compatibility with signals and monitors. CRTs from the 1930s to the early 2000s were highly variable when it came to how the image was positioned within the border of the screen, resulting in overscan issues.

PAL stands for Phase Alternating Lines. PAL is the analog video standard for the rest of the world.PAL standard will transmit 25 frames each second at 50Hz with each frame being made up of 625 individual scan lines. The digital standards to succeed PAL are DVB, ISDB, or DTMB.

Panel mount is a type of enclosure which enables you to flush-mount the monitor or touch screen into a panel, door or enclosure. Panel mount enclosures feature an oversized front bezel to enable mounting. The front face will protrude very slightly from the mounting surface, but the internal components will be safely enclosed inside the panel, door or enclosure. Panel mount enclosures offer added protection since only the front of the monitor is exposed.

Pinch-to-Zoom is a common multi-touch gesture used on many touchscreens, especially cell phones. This is when you use two fingers in a pinching motion to zoom in or out on a touchscreen. P-Cap (Projected Capacitive) touch screens enable this multi-touch capability.

Sometimes referred to as a “dot,” as in “dots per inch”, “Pixel” is short for picture elements, which make up an image, similar to grains in a photograph or dots in a half-tone.  Each pixel can represent a number of different shades or colors, depending on how much storage space is allocated for it.  Pixels per inch (ppi) are sometimes the preferred term, as it more accurately describes the digital image.  The actual physical size of the pixel is equal to the pixel pitch of the display.  If your display is set to something less than the maximum resolution, then a pixel will be larger than the actual size of the screen dot, i.e., a pixel will use more than one dot.

In order to convert analog video signal to digital, a decoder is needed. You would want to do this if you are using an analog video system (like in security applications) but want to use digital equipment to monitor it. Pixel Jitter refers to any timing differences between the analog video capture device and the video decoder’s internal clocks. In perfect form, a decoder will digitize pixels at the same rate the pixels are acquired by the camera. Any difference between these two times will result in “pixel jitter” which looks like shaking/noise coming from the video signal.

Pixel pitch (AKA Dot Pitch) is the distance from one pixel’s center to the adjacent pixel’s center. Pixel pitch is measured in millimeters (mm) and most LCD monitors range from 0.10mm to 0.70mm. Pixel pitch is directly correlated to resolution and viewing distance. The smaller the pixel pitch, the more condensed the pixels are, and the higher the resolution. However, a smaller pixel pitch requires a closer viewing distance. The viewing distance should decide the ideal pixel pitch for you.

Polarizing filters are made from a type of transparent crystal, which allow certain light waves to pass through. A vertical allows vertical light waves, and blocks horizontal light waves, and vice versa. LCD monitors use two polarizers to control the brightness of the light. Care must be taken to choose the proper polarizers. For example, Incorrect polarizers used in Sunlight Readable monitors would result in the monitors appearing invisible to anyone wearing polarized sunglasses.

Powder coated steel is one of the most common materials used to build rugged equipment such as industrial-grade monitors, so long as the monitor will not be subjected to contact with liquids. The coating is applied electrostatically and then cured under heat. It provides a harder, tougher finish than conventional paint.

The power consumption is how much wattage the monitor will consume. This concerns the circuit the monitor is plugged into. To avoid a blown circuit, ensure that your circuit allows for the added wattage the monitor will consume. (Watts divided by Volts = Amps  and   Watts divided by Amps = Volts)

The power requirement of a monitor is the amount of voltage needed to turn on and operate the monitor. Common power requirements include 12VDC, 12-24VDC, 36VDC, 120VAC or 220VAC.

Monitors have either internal or external power supplies. Monitors with internal power supplies have a AC power cord which plugs into a wall outlet. The incoming 120VAC power is then converted down to 12 or 24VDC inside the monitor. External power supplies are generally small, black rectangular devices which converts AC power to DC. They have two cords; one plugs into a wall outlet, and the other cord carries 12 or 24VDC to the monitor.

Private labelling is when one company manufactures a product that will be sold under another company’s brand. TRU-Vu private labels a great number of monitors and touch screens, featuring the client’s name, model number and logo on the front bezel and rear label.

Progressive is a method of scanning video. Video sources that have the letter p in them are progressively scanned (e.g. 1080p). Progressive scanning scans both the even and odd lines of video (the entire video frame) at the same time. While progressive does not halve the bandwidth or double the perceived frame rate like interlaced scanning, less motion blur will occur since everything is scanned at the same time. Broadcast companies like ESPN have sacrificed resolution in the past to transmit at 720p instead of 1080i simply to make use of the benefits of progressive scanning’s enhanced motion capture.

Projected Capacitive is similar to Surface Capacitive, but it offers two primary advantages: in addition to a bare finger, it can also be activated with surgical gloves or thin cotton gloves; and it enables multi-touch activation (simultaneous inputs from two or more fingers).

A projected capacitive is composed of a sheet of glass with embedded transparent electrode films and an IC chip, which creates a three dimensional electrostatic field. When a finger comes into contact with the screen, the ratios of the electrical currents change and the computer is able to detect the touch points. Since the finger sensing is projected through the glass, this allows the use of a thin gloved finger or passive stylus.

Protective glass is when an extra layer of glass is added onto the front of the LCD screen. The primary reason to place glass over the LCD panel is to protect the panel from damaged. AR (Anti-Reflective) or AG (Anti-Glare) glass will help to reduce unwanted reflections and glare.

Rack mount is a type of enclosure that features flanges on the left and right sides suitable for mounting directly into a standard 19” rack with the face of the LCD monitor visible at all times. The height of the unit is measured in rack units (RU) where 8U and 9U are most common to fit 17-inch or 19-inch LCDs.

RCA (Radio Corporation of America, which introduced the design) is used to carry composite video or stereo audio over a coaxial cable. Unlike the BNC connector, RCA does not lock into place and is split between 3 separate cables: yellow for video, red and white for audio.

The refresh rate refers to the number of times a monitor can show a static image per second. Hertz (Hz) is the unit used to measure the refresh rate of a monitor. This is similar to frame rate. Frame rate refers to the content itself, whereas refresh rate refers to the display showing the content. Too low of a refresh rate on a monitor with high frame rate content will result in excessive motion blur. Almost all monitors built for use in North America feature a 60Hz refresh rate. However some gaming monitors can feature refresh rates of 144Hz or higher.

Response time is how quickly the monitor will react to a signal. Response time is measured in milliseconds (ms) and most monitors today have response times of 10 ms and lower. A smaller response time is better than larger because it means the monitor responds quicker. Too long of a response time will result in streaks or “ghosts” from fast moving objects.

The display resolution of a LCD monitor is the number of horizontal pixels multiplied by the number of vertical pixels. TRU-Vu’s display resolutions range from 640 x 480 up to 3840 x 2160 (aka 4K resolution). Larger display sizes will typically require higher resolutions that provide sharp image quality. However, LCD displays with smaller screen sizes can have lower pixel resolutions but still produce excellent image quality.

RGB stands for Red Green Blue. It is the color model used in sensing, representing, and displaying images in electronic systems like monitors and computers. RGB is an additive color model that adds the 3 primary colors (red, green, and blue) together to reproduce a an array of colors. Red, green, and blue together will result in white. LCD monitors will use RGB sub-pixels to create different colored pixels in order to represent a larger picture.

S-Video stands for Separate Video and carries a video-only analog signal. S-Video has a 4-pin mini Din connector and while it can convert to VGA, it is expensive to do so. The 4 pins carry color, black, and white video signals all in one cable connection. Two major advantages to S-Video is no dot crawl or rainbow effect.

Saturation in monitors or colors refers to the intensity of a color. Lower saturation will feature washed out colors with less pigment. Higher saturation will feature bright colors that are intensely colored.

SAW (Surface Acoustic Wave) is a touch screen technology. SAW touch screens utilize a series of piezoelectric transducers and receivers along the sides of the monitor’s glass plate to create an invisible grid of ultrasonic waves on the surface. When the panel is touched, a portion of the wave is absorbed. This allows the receiving transducer to locate the touch point and send this data to the computer. SAW monitors can be activated by a finger, gloved hand, or soft-tip stylus.

SAW touch screens provide excellent image quality. However, contaminants on the surface can interfere with the touch sensing grid, so cleanliness is important. You also must use a soft object to trigger this device so ultrasonic waves can be absorbed. Hard objects such as a pen, credit card, or fingernail will not work well.

The serial port is a serial communication interface where information is transferred in or out sequentially one bit at a time. The term serial port usually identifies hardware compliant to the RS-232 standard or similar. RS-232 is another common connection used to transmit data. For monitors, RS-232 can be used to power a touchscreen and communicate recorded touches to a connected computer.

The screen size of an LCD monitor is determined by measuring from one corner of the LCD screen (excluding the bezel) diagonally to the opposite corner of the LCD screen. Screen size is measured in inches. Screen size is not to be confused with Viewable Area, as the viewable area is the horizontal measurement multiplied by the vertical measurement of the LCD Screen.

SDI stands for Serial Digital Interface; it carries both audio and video digital signals. The SDI commonly used today is 3G-SDI and HD-SDI. These both feature locking BNC connectors as well as a resolutions of 1920 x 1080. HD-SDI is only able to do 1080i whereas the newer 3G-SDI is able to do 1080p60. SDI is a great “bridge” from source to end destination since it can be run up to 330 feet with an HD bitrate.

The shock rating shows the maximum amount of shock that can occur without damaging the display. The shock rating of a monitor is measured by the maximum acceleration of gravity (G) over a given time, usually milliseconds (msec). A monitor experiencing a shock greater than the provided rating or if the shock occurs quicker than the given time will result in complications or failure.

When the monitor stops receiving a video signal (a horizontal of vertical sync signal) for “x” seconds, it goes into Sleep Mode. The LED backlights and the video circuitry are turned off. Power consumption drops from its standard rate (depending on the model) down to less than 5W. This reduces heat and conserves energy. When the incoming video signal is resumed, the monitor exits Sleep Mode and begins projecting the video images on the screen.

Stainless steel is a corrosion-resistant material that is commonly used to build equipment that will be exposed to liquids. Compared to other corrosion-resistant materials such as aluminum, stainless steel is typically heavier, and is susceptible to finger print markings, but does offer more protection. Stainless steel can be painted but it requires many more steps to prepare the surface.

Sunlight Readable monitors are able to show content in indirect or direct sunlight without loss in image quality thanks to a higher brightness. Monitor brightness is measured in nits. Typical indoor monitors range from 200-300 nits. Indirect Sunlight or Daylight Readable monitors feature 400-700 nits. Direct Sunlight Readable monitors feature 1,000-2,500 nits. This much higher brightness is what allows Sunlight Readable monitors to be viewed in sunlight.

Surface capacitive touch screen monitors have a transparent electrode layer placed on top of a glass panel, and covered by a protective cover. When an exposed finger touches the monitor screen, it reacts to the static electrical capacity of the human body; some of the electrical charge transfers from the screen to the user. This decrease in capacitance is detected by sensors located at the four corners of the screen, allowing the controller to determine the exact touch point. Surface capacitive touch screens can only be activated by the touch of human skin or a stylus holding an electrical charge. It will not activate with a gloved finger, or other objects.

The TN panel is a type of LCD panel; TN stands for twisted nematic and is one of the most widely used, cost effective, but oldest LCD panels available. The viewing angles are not as good as other types of panels, and are generally worn when viewing the monitor from below. However, the response time is one of the quickest out of all LCD panels.

In order to use a touch technology, there must be an interface to power the touch technology as well as translate your touches to the computer. The touch interface enables the touch panel to communicate with your computer. This interface will typically be a USB or RS-232 cable.

There are multiple types of touch screen technologies. The five most common touch screen technologies are 5-Wire Resistive, Surface Capacitive, Projected Capacitive (P-Cap), Surface Acoustic Wave (SAW) and infrared (IR), each having its own advantages and disadvantages. For example, some are designed and built to be used in almost any condition. However, the same technologies may reduce the brightness and overall image quality.

Other technologies allow for multitouch functions such as pinch-to-zoom, but cannot work with operators wearing thick gloves. The type of touch screen technology you select will be contingent upon many factors, including type of data to be displayed (video, graphics, text), the intended users, the operating environment and where/how it will be mounted. Chosen correctly, touch screen monitors will be an excellent addition to your system. Please see our touch screen guide for further details.

A Touchscreen Driver is the file that is installed on a computer to translate what a touch screen is seeing to the computer. It is like a digital manual that allows the computer to understand what the touchscreen is feeling and wanting to trigger. When installing a new touchscreen driver, make sure any old drivers for that touchscreen are deleted. Multiple drivers pertaining to the same touch screen on the same computer will confuse the computer and result in the updated driver not working properly.

TRU-Tuff is a unique treatment to maximize shock and vibration resistance.  This process includes: RTV silicone on all critical components and connections; all wires are dressed, tie-wrapped and secured; and ThreadLock is applied to all screws.

A tuner is used to receive radio frequency (RF) transmissions and convert the carrier frequency and bandwidth into a fixed frequency suitable for the desired output. More complex transmissions like TV, digital radio, and digital TV use a wider frequency bandwidth, often with several subcarriers. These wider frequency bands are transmitted inside the receiver as an intermediate frequency (IF).

USB stands for Universal Serial Bus. It is one of the most common industry standard data connections used today. USB cables allow communication and power supply between computers, peripherals, and other computers. For monitors, USB can be used to power a touchscreen and communicate recorded touches to a connected computer.

The Video Electronics Standards Association (VESA) is a technical standards organization that has created many computer display standards. Its most prominent standard today is the VESA Mounting Interface Standard (MIS) or simply the VESA Mount. VESA Mounts simplify mounting by standardizing the hole pattern that a monitor and mount must fit. VESA mount patterns are measured in millimeters and listed as the horizontal by vertical distance between the center of the mount holes. An example would be “VESA 75×75” meaning the 4 screw holes are all 75mm apart.

VGA stands for Video Graphics Array; it carries only a video signal, no audio. VGA is a locking, analog connector and is one of the more common outputs on most older computer systems. The maximum resolution is UXGA (1600×1200) but VGA cables can go up to 100 ft. with only 800×600 resolution.

The vibration rating is the total amount of vibration a monitor can sustain. The vibration is measured using the acceleration of gravity (G) over time. Experiencing a higher vibration or a vibration that lasts longer than the provided time will result in complications or failure.

Video cable adapters are used when you need to adapt one connector to another with the same type of video signal. These can change the gender of a connector or the connector entirely. Adapters only work when going from an analog converter to another analog converter, or to digital to digital. It cannot adapt analog to digital or vice versa; a video cable converter is required for that conversion.

Video cable converters are used when you need to change a signal from analog to digital, or vice versa. The analog electronic device’s input voltage or current is converted to a digital number representing the magnitude of the voltage or current.

The video inputs on a monitor show what incoming video signals the monitor can interpret. This also tells you what cables are needed to send the signal from your source to the monitor. Common video inputs include: HDMI, VGA, DisplayPort, Composite BNC, DVI, and HD-SDI. Some transmit audio and video, others only transmit video.

The viewable area of a video display is the actual width of the LCD screen (typically in inches) x by the height of the LCD screen in inches (excluding the enclosure). This measures the total area of the screen and shows how wide and tall the screen will be. Monitors with the same Screen Size will have the same Viewable Area and visa versa.

The viewing angle of a monitor is the maximum angle the monitor can be viewed at before image quality degrades. Viewing angles are measured in horizontal and vertical degrees. When the monitor is in a position where viewing occurs outside of this maximum angle, the brightness and contrast ratio will begin to drop. At a severe enough angle, the perceived colors on screen will begin to shift. Make sure your monitor’s end position will allow viewing within these angles for ideal results. The worst viewing angle for most LCD panels is usually from the bottom looking upward at the panel. A MVA-type panel will provide full 178° x 178° viewing angles.

The warranty offered with a monitor is how long the monitor “shall be free from defects in materials and workmanship from the date of shipment.” Some monitors will have longer or shorter warranties depending on the product specifics. Nearly all TRU-Vu Monitors carry a 3-year warranty.

Waterproof means a device is completely sealed from the ingress of water under specified conditions. The waterproofed device will remain unaffected by water. IP ratings and NEMA standards measure waterproofing based on specified conditions. We have a full line of waterproof monitors and touch screens.

The weight of a monitor is the total of the monitor’s components and enclosure. This does not include cables or mounts. The weight is typically recorded in pounds (lbs. or #) or kilograms (kg).

Zero Bezel or Bezel-Less enclosures are monitors which have no bezel, frame, or edge around the front edges. If you run your finger across the monitor’s front face, you would never feel a bump on the edges. Zero Bezel or Bezel-Less monitors are more stylish and hygienic. They are far superior medical displays, as the bezels found on standard LCD monitors often able germs and debris to collect near and under the bezel.

A computer monitor is an output device that displays information in pictorial or textual form. A discrete monitor comprises a visual display, support electronics, power supply, housing, electrical connectors, and external user controls.

The display in modern monitors is typically an LCD with LED backlight, having by the 2010s replaced CCFL backlit LCDs. Before the mid-2000s,CRT. Monitors are connected to the computer via DisplayPort, HDMI, USB-C, DVI, VGA, or other proprietary connectors and signals.

Originally, computer monitors were used for data processing while television sets were used for video. From the 1980s onward, computers (and their monitors) have been used for both data processing and video, while televisions have implemented some computer functionality. In the 2000s, the typical display aspect ratio of both televisions and computer monitors has changed from 4:3 to 16:9.

Modern computer monitors are mostly interchangeable with television sets and vice versa. As most computer monitors do not include integrated speakers, TV tuners, nor remote controls, external components such as a DTA box may be needed to use a computer monitor as a TV set.

Early electronic computer front panels were fitted with an array of light bulbs where the state of each particular bulb would indicate the on/off state of a particular register bit inside the computer. This allowed the engineers operating the computer to monitor the internal state of the machine, so this panel of lights came to be known as the "monitor". As early monitors were only capable of displaying a very limited amount of information and were very transient, they were rarely considered for program output. Instead, a line printer was the primary output device, while the monitor was limited to keeping track of the program"s operation.

Multiple technologies have been used for computer monitors. Until the 21st century most used cathode-ray tubes but they have largely been superseded by LCD monitors.

The first computer monitors used cathode-ray tubes (CRTs). Prior to the advent of home computers in the late 1970s, it was common for a video display terminal (VDT) using a CRT to be physically integrated with a keyboard and other components of the workstation in a single large chassis, typically limiting them to emulation of a paper teletypewriter, thus the early epithet of "glass TTY". The display was monochromatic and far less sharp and detailed than on a modern monitor, necessitating the use of relatively large text and severely limiting the amount of information that could be displayed at one time. High-resolution CRT displays were developed for specialized military, industrial and scientific applications but they were far too costly for general use; wider commercial use became possible after the release of a slow, but affordable Tektronix 4010 terminal in 1972.

Some of the earliest home computers (such as the TRS-80 and Commodore PET) were limited to monochrome CRT displays, but color display capability was already a possible feature for a few MOS 6500 series-based machines (such as introduced in 1977 Apple II computer or Atari 2600 console), and the color output was a speciality of the more graphically sophisticated Atari 800 computer, introduced in 1979. Either computer could be connected to the antenna terminals of an ordinary color TV set or used with a purpose-made CRT color monitor for optimum resolution and color quality. Lagging several years behind, in 1981 IBM introduced the Color Graphics Adapter, which could display four colors with a resolution of 320 × 200 pixels, or it could produce 640 × 200 pixels with two colors. In 1984 IBM introduced the Enhanced Graphics Adapter which was capable of producing 16 colors and had a resolution of 640 × 350.

By the end of the 1980s color progressive scan CRT monitors were widely available and increasingly affordable, while the sharpest prosumer monitors could clearly display high-definition video, against the backdrop of efforts at HDTV standardization from the 1970s to the 1980s failing continuously, leaving consumer SDTVs to stagnate increasingly far behind the capabilities of computer CRT monitors well into the 2000s. During the following decade, maximum display resolutions gradually increased and prices continued to fall as CRT technology remained dominant in the PC monitor market into the new millennium, partly because it remained cheaper to produce.

There are multiple technologies that have been used to implement liquid-crystal displays (LCD). Throughout the 1990s, the primary use of LCD technology as computer monitors was in laptops where the lower power consumption, lighter weight, and smaller physical size of LCDs justified the higher price versus a CRT. Commonly, the same laptop would be offered with an assortment of display options at increasing price points: (active or passive) monochrome, passive color, or active matrix color (TFT). As volume and manufacturing capability have improved, the monochrome and passive color technologies were dropped from most product lines.

The first standalone LCDs appeared in the mid-1990s selling for high prices. As prices declined they became more popular, and by 1997 were competing with CRT monitors. Among the first desktop LCD computer monitors was the Eizo FlexScan L66 in the mid-1990s, the SGI 1600SW, Apple Studio Display and the ViewSonic VP140vision science remain dependent on CRTs, the best LCD monitors having achieved moderate temporal accuracy, and so can be used only if their poor spatial accuracy is unimportant.

High dynamic range (HDR)television series, motion pictures and video games transitioning to widescreen, which makes squarer monitors unsuited to display them correctly.

Organic light-emitting diode (OLED) monitors provide most of the benefits of both LCD and CRT monitors with few of their drawbacks, though much like plasma panels or very early CRTs they suffer from burn-in, and remain very expensive.

Viewable image size - is usually measured diagonally, but the actual widths and heights are more informative since they are not affected by the aspect ratio in the same way. For CRTs, the viewable size is typically 1 in (25 mm) smaller than the tube itself.

Radius of curvature (for curved monitors) - is the radius that a circle would have if it had the same curvature as the display. This value is typically given in millimeters, but expressed with the letter "R" instead of a unit (for example, a display with "3800R curvature" has a 3800mm radius of curvature.

Display resolution is the number of distinct pixels in each dimension that can be displayed natively. For a given display size, maximum resolution is limited by dot pitch or DPI.

Dot pitch represents the distance between the primary elements of the display, typically averaged across it in nonuniform displays. A related unit is pixel pitch, In LCDs, pixel pitch is the distance between the center of two adjacent pixels. In CRTs, pixel pitch is defined as the distance between subpixels of the same color. Dot pitch is the reciprocal of pixel density.

Pixel density is a measure of how densely packed the pixels on a display are. In LCDs, pixel density is the number of pixels in one linear unit along the display, typically measured in pixels per inch (px/in or ppi).

Contrast ratio is the ratio of the luminosity of the brightest color (white) to that of the darkest color (black) that the monitor is capable of producing simultaneously. For example, a ratio of 20,000∶1 means that the brightest shade (white) is 20,000 times brighter than its darkest shade (black). Dynamic contrast ratio is measured with the LCD backlight turned off. ANSI contrast is with both black and white simultaneously adjacent onscreen.

Color depth - measured in bits per primary color or bits for all colors. Those with 10bpc (bits per channel) or more can display more shades of color (approximately 1 billion shades) than traditional 8bpc monitors (approximately 16.8 million shades or colors), and can do so more precisely without having to resort to dithering.

Color accuracy - measured in ΔE (delta-E); the lower the ΔE, the more accurate the color representation. A ΔE of below 1 is imperceptible to the human eye. A ΔE of 2–4 is considered good and requires a sensitive eye to spot the difference.

Viewing angle is the maximum angle at which images on the monitor can be viewed, without subjectively excessive degradation to the image. It is measured in degrees horizontally and vertically.

Refresh rate is (in CRTs) the number of times in a second that the display is illuminated (the number of times a second a raster scan is completed). In LCDs it is the number of times the image can be changed per second, expressed in hertz (Hz). Determines the maximum number of frames per second (FPS) a monitor is capable of showing. Maximum refresh rate is limited by response time.

Response time is the time a pixel in a monitor takes to change between two shades. The particular shades depend on the test procedure, which differs between manufacturers. In general, lower numbers mean faster transitions and therefore fewer visible image artifacts such as ghosting. Grey to grey (GtG), measured in milliseconds (ms).

On two-dimensional display devices such as computer monitors the display size or view able image size is the actual amount of screen space that is available to display a picture, video or working space, without obstruction from the bezel or other aspects of the unit"s design. The main measurements for display devices are: width, height, total area and the diagonal.

The size of a display is usually given by manufacturers diagonally, i.e. as the distance between two opposite screen corners. This method of measurement is inherited from the method used for the first generation of CRT television, when picture tubes with circular faces were in common use. Being circular, it was the external diameter of the glass envelope that described their size. Since these circular tubes were used to display rectangular images, the diagonal measurement of the rectangular image was smaller than the diameter of the tube"s face (due to the thickness of the glass). This method continued even when cathode-ray tubes were manufactured as rounded rectangles; it had the advantage of being a single number specifying the size, and was not confusing when the aspect ratio was universally 4:3.

With the introduction of flat panel technology, the diagonal measurement became the actual diagonal of the visible display. This meant that an eighteen-inch LCD had a larger viewable area than an eighteen-inch cathode-ray tube.

Estimation of monitor size by the distance between opposite corners does not take into account the display aspect ratio, so that for example a 16:9 21-inch (53 cm) widescreen display has less area, than a 21-inch (53 cm) 4:3 screen. The 4:3 screen has dimensions of 16.8 in × 12.6 in (43 cm × 32 cm) and area 211 sq in (1,360 cm2), while the widescreen is 18.3 in × 10.3 in (46 cm × 26 cm), 188 sq in (1,210 cm2).

Until about 2003, most computer monitors had a 4:3 aspect ratio and some had 5:4. Between 2003 and 2006, monitors with 16:9 and mostly 16:10 (8:5) aspect ratios became commonly available, first in laptops and later also in standalone monitors. Reasons for this transition included productive uses for such monitors, i.e. besides Field of view in video games and movie viewing, are the word processor display of two standard letter pages side by side, as well as CAD displays of large-size drawings and application menus at the same time.LCD monitors and the same year 16:10 was the mainstream standard for laptops and notebook computers.

In 2010, the computer industry started to move over from 16:10 to 16:9 because 16:9 was chosen to be the standard high-definition television display size, and because they were cheaper to manufacture.

In 2011, non-widescreen displays with 4:3 aspect ratios were only being manufactured in small quantities. According to Samsung, this was because the "Demand for the old "Square monitors" has decreased rapidly over the last couple of years," and "I predict that by the end of 2011, production on all 4:3 or similar panels will be halted due to a lack of demand."

The resolution for computer monitors has increased over time. From 280 × 192 during the late 1970s, to 1024 × 768 during the late 1990s. Since 2009, the most commonly sold resolution for computer monitors is 1920 × 1080, shared with the 1080p of HDTV.2560 × 1600 at 30 in (76 cm), excluding niche professional monitors. By 2015 most major display manufacturers had released 3840 × 2160 (4K UHD) displays, and the first 7680 × 4320 (8K) monitors had begun shipping.

Every RGB monitor has its own color gamut, bounded in chromaticity by a color triangle. Some of these triangles are smaller than the sRGB triangle, some are larger. Colors are typically encoded by 8 bits per primary color. The RGB value [255, 0, 0] represents red, but slightly different colors in different color spaces such as Adobe RGB and sRGB. Displaying sRGB-encoded data on wide-gamut devices can give an unrealistic result.Exif metadata in the picture. As long as the monitor gamut is wider than the color space gamut, correct display is possible, if the monitor is calibrated. A picture which uses colors that are outside the sRGB color space will display on an sRGB color space monitor with limitations.Color management is needed both in electronic publishing (via the Internet for display in browsers) and in desktop publishing targeted to print.

Most modern monitors will switch to a power-saving mode if no video-input signal is received. This allows modern operating systems to turn off a monitor after a specified period of inactivity. This also extends the monitor"s service life. Some monitors will also switch themselves off after a time period on standby.

Most modern laptops provide a method of screen dimming after periods of inactivity or when the battery is in use. This extends battery life and reduces wear.

Most modern monitors have two different indicator light colors wherein if video-input signal was detected, the indicator light is green and when the monitor is in power-saving mode, the screen is black and the indicator light is orange. Some monitors have different indicator light colors and some monitors have blinking indicator light when in power-saving mode.

Many monitors have other accessories (or connections for them) integrated. This places standard ports within easy reach and eliminates the need for another separate hub, camera, microphone, or set of speakers. These monitors have advanced microprocessors which contain codec information, Windows interface drivers and other small software which help in proper functioning of these functions.

Monitors that feature an aspect ratio greater than 2:1 (for instance, 21:9 or 32:9, as opposed to the more common 16:9, which resolves to 1.77:1).Monitors with an aspect ratio greater than 3:1 are marketed as super ultrawide monitors. These are typically massive curved screens intended to replace a multi-monitor deployment.

These monitors use touching of the screen as an input method. Items can be selected or moved with a finger, and finger gestures may be used to convey commands. The screen will need frequent cleaning due to image degradation from fingerprints.

Some displays, especially newer flat panel monitors, replace the traditional anti-glare matte finish with a glossy one. This increases color saturation and sharpness but reflections from lights and windows are more visible. Anti-reflective coatings are sometimes applied to help reduce reflections, although this only partly mitigates the problem.

Most often using nominally flat-panel display technology such as LCD or OLED, a concave rather than convex curve is imparted, reducing geometric distortion, especially in extremely large and wide seamless desktop monitors intended for close viewing range.

Newer monitors are able to display a different image for each eye, often with the help of special glasses and polarizers, giving the perception of depth. An autostereoscopic screen can generate 3D images without headgear.

A combination of a monitor with a graphics tablet. Such devices are typically unresponsive to touch without the use of one or more special tools" pressure. Newer models however are now able to detect touch from any pressure and often have the ability to detect tool tilt and rotation as well.

The option for using the display as a reference monitor; these calibration features can give an advanced color management control for take a near-perfect image.

Raw monitors are raw framed LCD monitors, to install a monitor on a not so common place, ie, on the car door or you need it in the trunk. It is usually paired with a power adapter to have a versatile monitor for home or commercial use.

A desktop monitor is typically provided with a stand from the manufacturer which lifts the monitor up to a more ergonomic viewing height. The stand may be attached to the monit