contrast ratio for lcd monitors factory

The contrast ratio (CR) is a property of a display system, defined as the ratio of the luminance of the brightest shade (white) to that of the darkest shade (black) that the system is capable of producing. A high contrast ratio is a desired aspect of any display. It has similarities with dynamic range.

There is no official, standardized way to measure contrast ratio for a system or its parts, nor is there a standard for defining "Contrast Ratio" that is accepted by any standards organization so ratings provided by different manufacturers of display devices are not necessarily comparable to each other due to differences in method of measurement, operation, and unstated variables.projection screen or emitted by a cathode ray tube, and the only light seen in the room would come from the display device. With such a room, the contrast ratio of the image would be the same as the contrast ratio of the device. Real rooms reflect some of the light back to the displayed image, lowering the contrast ratio seen in the image.

Static contrast ratio is the luminosity ratio comparing the brightest and darkest shade the system is capable of producing simultaneously at any instant of time, while dynamic contrast ratio is the luminosity ratio comparing the brightest and darkest shade the system is capable of producing over time (while the picture is moving). Moving from a system that displays a static motionless image to a system that displays a dynamic, changing picture slightly complicates the definition of the contrast ratio, due to the need to take into account the extra temporal dimension to the measuring process.

Many display devices favor the use of the full on/full off method of measurement, as it cancels out the effect of the room and results in an ideal ratio. Equal proportions of light reflect from the display to the room and back in both "black" and "white" measurements, as long as the room stays the same. This will inflate the light levels of both measurements proportionally, leaving the black to white luminance ratio unaffected.

Some manufacturers have gone as far as using different device parameters for the three tests, even further inflating the calculated contrast ratio. With DLP projectors, one method to do this is to enable the clear sector of the color filter wheel for the "on" part and disable it for the "off" part

Another measure is the ANSI contrast, in which the measurement is done with a checker board patterned test image where the black and white luminosity values are measured simultaneously.

It is useful to note that the full on/full off method effectively measures the dynamic contrast ratio of a display, while the ANSI contrast measures the static contrast ratio.

An LCD technology is dynamic contrast (DC), also called advanced contrast ratio (ACR) and various other designations. When there is a need to display a dark image, a display that supports dynamic contrast underpowers the backlight lamp (or decreases the aperture of the projector"s lens using an iris), but proportionately amplifies the transmission through the LCD panel; this gives the benefit of realizing the potential static contrast ratio of the LCD panel in dark scenes when the image is watched in a dark room. The drawback is that if a dark scene contains small areas of superbright light, the resulting image will be over exposed.

The trick for the display is to determine how much of the highlights may be unnoticeably blown out in a given image under the given ambient lighting conditions.

It is also common to market only the dynamic contrast ratio capability of a display (when it is better than its static contrast ratio only on paper), which should not be directly compared to the static contrast ratio. A plasma display with a 4,000,000:1 static contrast ratio will show superior contrast to an LCD (with LED or CCFL backlight) with 30,000,000:1 dynamic and 20,000:1 static contrast ratio when the input signal contains a full range of brightnesses from 0 to 100% simultaneously. They will, however, be on par when input signal ranges only from 0 to 20% brightness.

This animated gif shows a rudimentary representation of how various backlight dimming technologies work on TV. Dimming technology can drastically affect the contrast ratio of the display.

In marketing literature, contrast ratios for emissive (as opposed to reflective) displays are always measured under the optimum condition of a room in total darkness. In typical viewing situations, the contrast ratio is significantly lower due to the reflection of light from the surface of the display, making it harder to distinguish between different devices with very high contrast ratios.luminance of the display, as well as the amount of light reflecting off the display.

As a first step, try using the calibration settings we recommend (provided we have reviewed your monitor). This will get good, basic contrast - meaning no additional contrast-enhancing settings - and with no loss of detail in dark portions of the image. You can find this information in the "Post Calibration" section of the review.

Contrast:Adjusting this will let you affect how much contrast the monitor has. We list a recommended setting with all of our reviews, but it"s almost always fine to just set this to the maximum. On rare occasions, gamma might be affected, leading to a loss of detail in highlights.

Local Dimming: The local dimming feature dims the backlight behind darker portions of the screen. It can deepen contrast, and it"s worth using when implemented well. It can introduce issues like light blooming off of light objects within dark areas, and when done especially poorly, can dim the entire image. We discuss local dimming in more detail here.

Backlight settings have a very minor impact on contrast, and so you should set it to whatever looks best in your viewing space. With LED Monitors, both white and black will become about equally brighter or dimmer when the backlight is adjusted, preserving the ratio of light to dark. With OLED monitors, adjusting the OLED light only increases the peak brightness; blacks are still perfectly black.

One frequently asked question is which is more important, a panel"s native contrast or contrast with local dimming? It"s a good question. The answer is a bit complicated, but basically, it depends. Unlike TVs, most monitors don"t have a local dimming feature. The few that do, generally speaking, don"t work very well. They usually have very small zone counts, and the algorithms can"t keep up with fast-paced motion, so the leading edge of a bright object in a dark scene ends up looking darker than the rest, and there"s a trail of light behind it.

Because of these issues with local dimming, it"s almost always more important to look at the native capabilities of a monitor instead of the contrast ratio with local dimming. Because most monitors have poor local dimming features, there"s usually not that much of a difference between the native contrast of the panel and the contrast with local dimming when tested with a checkerboard pattern. In fact, of the 23 monitors with local dimming that we"ve tested on our latest test bench, only 4 of them can improve contrast by 10% or more with our test pattern through local dimming.

There are different ways to measure contrast. We measure contrast with a checkerboard pattern and take the average black level from four squares, but some other review sites measure it differently, which can lead to a difference in posted numbers. Some of the other methods we"ve seen websites use include:

Full On/Off: Some websites measure the contrast using a full white screen, and a full black screen. This is generally considered a less accurate way to measure contrast, and it isn"t very realistic. Contrast measurements with local dimming tend to appear much better with this measurement technique, as it"s easy for any monitor with local dimming to turn the entire screen off at once.

Small Samples: Similar to the full-screen method, but instead of large slides, contrast is measured using small slides that only cover part of the screen. This method isn"t ideal either, as imperfect uniformity can significantly skew the results.

ANSI Checkerboard: The most generally accepted way to measure contrast; a checkerboard pattern very similar to ours is used, but with an asymmetric test pattern. The ANSI method measures the output in all 16 squares and averages the values for the white and black squares. It usually produces very similar results to our own.

Because of differences in measurement techniques, equipment used, and even differences between units, it"s extremely common for different websites to report different contrast measurements.

Monitors use different display technologies, each with advantages and disadvantages. Knowing which type of panel is used in your monitor can already give you a good indication of what to expect in terms of contrast ratio:

OLED: Very few OLED monitors exist, but they essentially have perfect contrast, as each pixel is self-emissive, the black level of black pixels is essentially zero.

Even within the same panel types, it"s normal for the contrast to vary a bit between units, even of the same model, due to manufacturing tolerances. Manufacturers used to provide the typical contrast ratio for each monitor, but recently, some brands, including LG, have started listing the minimum contrast ratio you could get. For IPS and TN panels, this difference usually isn"t very significant, and most people shouldn"t worry about it, but for VA panels, the variance between individual units and measurement techniques can be significant. For example, the LG 32GN600-B is advertised to have a typical contrast ratio of 3000:1, but according to LG, it could be as low as 1800:1 for some units. We measured a contrast ratio of 3248:1, almost double the minimum contrast for that model.

A monitor’s contrast ratio indicates the depth of blacks – a higher contrast ratio means deeper blacks – and, by extension, better picture quality. It’s a very important part of picture quality, so if you want something that looks good (particularly in a dark room), be sure to get a monitor that has good contrast.

There are a few things that can be done to improve contrast, but there are limits. As a good first step, look to our recommended picture settings (listed with every review), as those can help you get a good baseline. From there, you can enable or disable a few different settings that might help deepen blacks. Just remember that some of those settings will have other consequences on picture quality.

This website is using a security service to protect itself from online attacks. The action you just performed triggered the security solution. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data.

A few years ago there was widespread exuberance in the A/V consumer world when NEC or Panasonic announced that the newest version of their gas plasma display (that"s what we called them then) delivered an astounding 3000 to 1 contrast ratio. Today manufacturers advertise contrast ratios approaching and above 1,000,000:1.

Truth is that a 3000:1 contrast ratio would be almost unbelievable even today if evaluated on a post calibration, whole screen, ANSI checkerboard pattern basis. The highest I have measured on a recent flat panel display was nearing 1600:1.

For a long time, we in the A/V world have been harboring secrets about the testing methods used for such measurements as contrast. Contrast ratio stands out as probably the most blatant and ridiculous example of irrelevant manufacturers specifications.

used the backlighting to increase contrast by increasing brightness. LCD TVs often suffer from hazy, washed out blacks, especially when viewed from an angle greater than 30° off center.

If you’re in the market for a new TV, projector, camera, or any other type of display, you should pay attention to the contrast ratio. But what does this measurement mean, and how do you know whether your display has good contrast?

While most displays have a contrast setting that the viewer can manually adjust, the ratio refers to the panel’s limitations—in other words, the largest possible difference between its lightest (white) and darkest (black) areas.

Contrast ratio is the measurement of the difference between a display"s maximum and minimum brightness; put another way, it"s the ratio between the brightest white and the darkest black. For example, a contrast ratio of 1,000:1 means that the brightest white image is 1,000 times brighter than the darkest black.

Generally, a higher contrast ratio is better since a display with a 100,000:1 ratio can produce darker black levels and more saturated colors than one with a 1,000:1 rating, thus achieving a more natural-looking image. That said, a bigger number isn"t always better, as you need to take external lighting conditions into account the lighting conditions and the type of display into account.

As previously mentioned, a higher contrast ratio has its benefits but isn’t the only thing you should consider. For example, a projector with a lower contrast ratio could provide an optimal viewing experience if you’ll be using it in a room with a lot of ambient light.

Contrast ratios can also vary significantly across different display types. While a transmissive digital projector may only have a contrast ratio of 200:1, many newer TVs are over 4,000:1. But even these figures don’t tell the whole story, as contrast ratios are dependent on the underlying technology and how they are measured.

When looking at a display’s contrast ratio, it’s important to understand the various ways in which they are measured. The actual ratio you see can be broken down into two different types: Static Contrast and Dynamic Contrast.

Static Contrast, otherwise known as “native” or “onscreen,” is a ratio comparing the brightest and darkest shade a display system is capable of producing at the same time. Since this ratio reflects the results from when the panel was made, industry experts typically consider this a more accurate representation of a display’s capabilities.

Dynamic Contrast offers a more theoretical range of a display’s contrast ratio, as it’s heavily dependent upon the screen’s underlying technology. Here, the range between the lightest areas of an all-white/light scene and the darkest areas of a black/dark scene is measured.

The problem with dynamic contrast measurements is that they are typically dishonest, as you’re unlikely to experience such a wide contrast range in the same scene. On top of this, manufacturers can manipulate contrast to make a scene lighter or darker using a display’s backlighting and firmware.

Unfortunately, there is no standardized measurement of contrast ratio. Particularly in the TV market, manufacturers can essentially inflate their ratings due to a combination of measurement and unstated variables. That said, most contrast ratios are measured using one of two methods:

Displays that measure with this method tend to register lower contrast ratios as ANSI contrast provides a more realistic measurement of the screen’s capability. However, since the test can include a room’s lighting conditions in its measurement, it needs to be performed in an ideal environment for the most accurate reading.

This method measures an all-white screen with an all-black screen and reflects equal proportions of light from the display to the room and back. It"s the preferred method for many manufacturers, as it cancels out exterior lighting conditions and results in an ideal (and thus higher) contrast ratio. Unfortunately, dynamic contrast specs are often misleading since they can be inflated and don"t indicate much about how an average image"s contrast will look.

The eye test is the best tool at your disposal — if a display’s black levels look washed out and gray, its contrast ratio probably isn’t high enough. However, there are other ways to ensure you’re not being misled:

Look for vendors that publish ANSI contrast specs, as this is a more accurate reflection of the display’s true contrast range. Unfortunately, many companies don’t disclose these figures, as ANSI readings tend to be much lower than Full On/Off, and it’s simply a better marketing strategy for these companies to focus on the latter.

Pay attention to backlighting technology.If you’re looking for a TV with a high contrast ratio, an OLED display will offer a better viewing experience than an LCD panel, as the OLED’s pixels don’t rely on a backlight and can display deeper blacks without a “blooming” effect.

Stick to the same manufacturer when making comparisons.Since every company arrives at its contrast ratios through different means, comparing displays produced by the same manufacturer is an excellent way to get consistent figures.

As it pertains to monitors, the contrast ratio is the ratio between the brightest white’s highest lumination level and the deepest black color the monitor is capable of producing. If a monitor has a high contrast ratio, it means it offers deeper shades of black, indicating a higher level of picture quality overall.

Contrast ratio is crucial for projector image quality. The higher the contrast ratio, the more detail viewers can see on the image projected. A higher contrast ratio also means more color subtlety is available, and more shading is visible.

Modern computer LCD monitors typically have a contrast ratio of between 1000:1 and 3000:1. A good gaming monitor may range toward the higher end of the spectrum, but use your eyes when considering a monitor you"re comfortable with and note that ambient light will affect what you"re seeing.

While OLED may be seen by many as the future of mobile and large panel displays, LCD manufacturers have recently come along with a number of innovations breathing new life into the panel type, including Quantum Dot and fast refresh rate technology. Today, Panasonic has unveiled its latest LCD IPS display that boasts a 1,000,000:1 contrast ratio. That’s up to 600 times more contrast than some of the company’s conventional LCD panels, which offer around 1800:1 ratios, and rivals OLED specifications.

Panasonic has accomplished this through the use of its new light modulating cell technology, which allows the company to switch off individual pixels in the display using a secondary control layer. Typically, LCD backlights mean that either the entire or only large parts of the display can be dimmed at any one time. OLED panels switch of lights entirely for a black pixel to offer very high contrast ratios, and this new LCD technology works on a very similar principle. This is particularly important for reproducing HDR video content, which is becoming increasingly popular.

Unfortunately, Panasonic’s new technology is quite expensive and won’t be heading to small form factor mobile panels, at least not yet. Although it can be built on existing LCD manufacturing lines, so prices should come down. The company states that it will be targeting the technology at panels in the high-end broadcasting, video production, medical, and automotive fields first, with sizes ranging from 55 to 12 inches. Sample shipments are scheduled to begin in January 2017, so we won’t see it in products for a little while yet.

Panasonic has developed a new type of IPS liquid crystal panel that has a 1,000,000:1 contrast ratio, as well as a peak brightness of up to 1000 nits. Many LCD displays often advertise such contrast ratios which are measured against a dynamic backlight and are essentially meaningless, but in this case Panasonic is talking about the static contrast ratio of the display, which only reaches as high as 2000:1 on a typical IPS display. Little information is available about the technology at this point, but Panasonic claims that it is achieved by implementing pixel-by-pixel control of backlight intensity and that panels featuring the tech can be produced using contemporary LCD manufacturing facilities.

One of the key advantages that OLED displays have over LCD displays is extremely high contrast ratio that results in superior blacks. The reason why OLEDs can display deeper blacks is simple: such panels do not use backlighting and can completely switch pixels off when they need to display blacks. By contrast, LCDs use backlighting that cannot be turned off on a pixel-by-pixel basis, which is why in many cases blacks look like dark greys.

In the most optimal case, an LCD display will use full-array backlighting, where there are several LEDs placed directly behind the liquid crystal layer. This allows for a degree of control by performing local dimming of certain areas, which is how LCD televisions have managed to meet the standards required for HDR certification. However, the precision of the backlight control is not close to that of an OLED display which works at the pixel level. Even more common, especially in monitors and less expensive televisions, is the use of edge lighting where LEDs are placed along the edges of the display and the light is distributed across the panel using a guiding plate, which means you can really only control the overall brightness across the entire display.

As it appears, Panasonic has found a way to substantially increase contrast ratio of IPS LCDs using a high-brightness backlight and a special layer of light-modulating cells that enable pixel-by-pixel control of backlight intensity. These cells are made of light-tolerant liquid crystal material that has different light-transmission properties compared to those used in the display cells. The layer of light-modulating cells is placed between the backlight and the LCD cells and thus can control light leakage. At a high level, one could think of them like gates placed behind each pixel on the display.

Panasonic does not reveal many details about its light-modulating cells, but since it uses the term “cells”, it clearly indicates that we are dealing with a relatively thick layer of liquid crystals, not a thin layer of quantum dots (you can see an illustration from Nanosys (a company that produces quantum dot films that are currently used on Samsung TVs and displays) to compare “cells” versus “quantum dots”).

Usage of a high-brightness backlight and a layer of light-modulating cells enable Panasonic to build display panels with up to 1000 nits brightness as well as a static contrast ratio of 1,000,000:1. These figures mean that a black level of 0.001 nits should be possible, which is well beyond what even the best full-array backlit LCD displays can offer today.

Panasonic claims that the addition of the layer can be done using the existing equipment for LCD manufacturing, but it"s not clear how costly the technology will be to implement or if it requires further components to be added to the LCD stack. The company plans to offer displays featuring the new technology for various professional applications, such as video production, medical, automotive, engineering and so on. Given the positioning, it is obvious that the price of IPS displays with enhanced contrast will be well above that of mainstream monitors.

First, the display screen on a sunlight readable/outdoor readable LCD should be bright enough so that the display is visible under strong sunlight. Second, the display contrast ratio must be maintained at 5 to 1 or higher.

Although a display with less than 500 nits screen brightness and a mere 2 to 1 contrast ratio can be read in outdoor environments, the quality of the display will be extremely poor. At i-Tech, a truly sunlight readable display is typically considered to be an LCD with 1000 nits or greater screen brightness with a contrast ratio greater than 5 to 1. In outdoor environments under the shade, such a display can provide an excellent image quality.

Luminance is the scientific term for hotopic Brightness?which specifies the visual brightness of an object. In layman"s terminology, it is commonly referred to as brightness? Luminance is specified in candelas per square meter (Cd/m2) or nits. In the US, the British unit Foot-lamberts (fL) is also frequently used. To convert from fL to nits, multiply the number in fL by 3.426 (i.e. 1 fL = 3.426 nits).

Luminance is a major determinant of perceived picture quality in an LCD. The importance of luminance is enhanced by the fact that the human mind will react more positively to brightly illuminated scenes and objects. Users are typically more drawn to brighter displays that are more pleasing to the eye and easier to read. In indoor environments, a standard active-matrix LCD with a screen luminance around 250 nits looks good. However, a sunlight readable LCD with a screen luminance of 1,000 will look even more beautiful.

Contrast ratio (CR) is the ratio of luminance between the brightest �white� and the darkest �black� that can be produced on a display. CR is another major determinant of perceived picture quality. If a picture has high CR, you will judge it to be sharper and more crisp than a picture with lower CR. For example, a typical newspaper picture has a CR of about 5 to 7, whereas a high quality magazine picture has a CR that is greater than 15. Therefore, the magazine picture will look better even if the resolution is the same as that of the newspaper picture.

A typical AMLCD exhibits a CR between 300 to 700 when measured in a dark room. However, the CR on the same unit measured under ambient illumination is drastically lowered due to surface reflection (glare). For example, a standard 200 nit LCD measured in a dark room has a 300 CR, but will have less than a 2 CR under strong direct sunlight. This is due to the fact that surface glare increases the luminance by over 200 nits both on the white and the black that are produced on the display screen. The result is that the luminance of the white is slightly over 400 nits, and the luminance of the black is over 200 nits. The CR ratio then becomes less than 2 and the picture quality is drastically reduced.

i-Tech sunlight readable LCDs with 1500 nits screen brightness will have a CR over 8 with the same amount of glare under the same strong sunlight, making the picture quality on these units extremely good. For further reading on contrast ratio, please see Tech Note 0101, Page 2, the Display Contrast Ratio.

The viewing angle is the angle at which the image quality of an LCD degrades and becomes unacceptable for the intended application. As the observer physically moves to the sides of the LCD, the images on an LCD degrade in three ways. First, the luminance drops. Second, the contrast ratio usually drops off at large angles. Third, the colors may shift. The definition of the viewing angle of an LCD is not absolute as it will depend on your application.

Most LCD manufacturers define viewing angle as the angles where the CR (contrast ratio)^3 10. For LCDs designed for less demanding applications, the viewing angle is sometimes defined as the angles where the CR^3 5.

For LCDs used in outdoor applications, defining the viewing angle based on CR alone is not adequate. Under very bright ambient light, the display is hardly visible when the screen luminance drops below 200 nits. Therefore, i-Tech defines the viewing angles based on both the CR and the Luminance.

All LCD backlights powered by cold cathode fluorescent lamps (CCFL) require inverters. An inverter is an electronic circuit that transforms a DC voltage to an AC voltage, which drives the CCFLs. i-Tech Technology manufactures inverters for all its products. Additionally, Applied Concepts and ERG also provide inverters for our products as well.

The dimming range or dimming ratio of an inverter specifies its capability of performing backlight luminance adjustment. For inverters used in notebook computers and LCD monitors, the backlight luminance can be adjusted typically over a dimming range of less than 10:1. That is, the luminance is adjusted from 100% down to about 10%.

For very high brightness backlights used in i-Tech Technology sunlight readable LCD modules, the inverters must be able to provide a much wider dimming range. Otherwise, the LCD screen will be too bright during nighttime conditions. Therefore, our inverters provide a typical dimming ratio of 200:1, meaning that the luminance can be adjusted from 100% down to 0.5%.

Any high brightness backlight system will consume a significant amount of power, thereby increasing the LCD temperature. The brighter the backlight, the greater the thermal issue. Additionally, if the LCD is used under sunlight, additional heat will be generated as a result of sunlight exposure. Temperature issues can be handled through proper thermal management design.

We provide TFT LCD with reflective mode of illumination without compromising its transmissive illumination. With the imposed reflective function, the modified LCD can reflect the ambient light passing the LCD cell and utilize the reflected light beams as its illumination. The stronger the ambient light is, the brighter the LCD will appear. As a result, the modified LCD is viewable under all lighting conditions including direct sunlight regardless the LCD"s original brightness.

The market demands for outdoor LCD applications are expanding, such as mobile navigator/video systems, PDA, personal organizer, Tablet PC, notebook computer, and Kiosk display etc. However, a regular transmissive LCD is very difficult to read under strong ambient light. This limits the outdoor applications of a conventional transmissive LCD.

The high bright LCD and the transflective LCD are the solutions generally utilized for outdoor applications. However, both solutions have some shortcomings. Because of the added lamps, high bright LCD creates some undesirable problems, which include high power consumption, excessive heat generation, increased dimensions, electrical circuit alterations, and shortened LCD lifetime. Thus, it is usually troublesome and costly to accommodate a high bright LCD in systems. Though giving good performance under the direct sunlight, the transflective LCD trades of its indoor performances.

Problems noticed in transflective LCD include narrow viewing angle, discoloration, low brightness, and loss of contrast. Moreover, the transflective LCD is currently limited in choice of sizes and resolutions.

On the other hand, a Transflective LCD is readable everywhere including outdoor environments without extra power consumption and excessive heat generation. The indoor viewing qualities are also enhanced. The modified unit fits right back into its original system with no need of any alteration and extra effort. Thus in your choice of size, resolution, and model, a direct sunlight readable LCD is conveniently incorporated into your device.

i-Tech is a premier supplier of optical bonding and performance added passive enhancements for all flat panel . i-Tech Optical Bonding process produces an optical bond between any display cover glass or touch panel, and any size LCD.

In the world of LCD"s, i-Tech takes display enhancement to a new level above all others. Utilizing advanced proprietary optical bonding technology; i-Tech overcomes optical challenges for display product manufacturers at an affordable price. In a wide range of applications, standard liquid crystal appear to "washed out" in high ambient lighting conditions. This wash out is due to excessive reflections and glare caused by bright light.

Commercially available LCDs, especially when protected by a separate cover glass or plastic shield, can not deliver enough brightness to make the display functional in outdoors or in other high ambient light applications. The exclusive Optical Bonding process from i-Tech provides a significant reduction of ambient light reflections at an affordable price, compared to other display enhancement technologies.

Optical Bonding seals either a top cover glass or touch screen directly to the face of the display bezel. Our bonding process eliminates the air-gap between the display and the cover glass, vastly reducing reflective light, which causes visual washout of the display image. Optical Bonding also enhances structural integrity by supporting the LCD assembly with the cover glass. The bond maintains perfect display uniformity while providing shock protection, unlimted humidity protection, and elimination of fogging caused by trapped moisture accumulating in typical air-gap assemblies.

Light travels through a variety of transparent materials; such as air, glass, plastic, and even water. These material"s abilty to transmit light is measured by their "indices of refraction". As light transfers from one material to another, such as air to glass, the differences the index of refraction will cause reflection. In the case of an air-to-glass interface, the reflection will be slightly less than 5% of the ambient light. All surfaces that have an index mismatch will reflect and the reflection is cumulative. In the case of a standard glass or plastic window, there are three surfaces with an index mismatch which will create a total relfection of nearly 15% of the ambient light. If the total reflection (in nits) is close to the displays brightness, the contrast of the display will be reduced to the point where the display"s readabilty is reduced to unacceptable levels.

Aside from the optical quality, Optical Bonding elminates the air-gap which prevents heat build-up from the "greenhouse" effect and prevents fogging from moisture or contamination from dirt or particles. It also offers shock protection and other damage to the LCD itself.

iTech IP65 Front and Full IP66 Chassis are designed for those applications require IP ( Ingress Protection ) feature, like chemical industry, food industry and medical industry. However, the IP65 Front and Full IP66 chassis might get moisture condensation issue for the applications under direct sunlight.

We provide two different choices of optical enhancement solutions that include anti-reflective coated and/or anti-glare protection glass. These technologies can be widely used in outdoor and indoor environment by enhancing optical performance of displays.

The anti-reflective coatings on the protection glass have excellent performance in tough ambient light conditions. With the normal glass, the strong reflection of the ambient light diminishes visibility and causes problems for viewer. Our special anti-reflective coated protection glass can increase contrast by enhancing light transmission rate over 95% (light reflectance rate less than 5%) and can effectively diminish the mirror images. The multi-layer vapor deposition coating either on one side or two sides of glass is designed to minimize reflectance and maximize transmittance.

Clearing Point - The temperature at which the liquid crystal fluid changes from a nematic into an isotropic state. In practice, a positive image LCD will turn totally black at this temperature and will therefore be unreadable. Because the clearing point is different for every fluid type, ask for design assistance from your supplier if high temperature operation is critical in your application.

Also, for most cases, both TN, HTN and STN utilize the phase known as nematic for display purpose. Within this phase, the liquid crystal has a "rod shape" exists within the solution which has fast response and has excellent electro-optic properties. This phase, however, only exists within a limited temperature range. The higher end of this temperature range is known as clearing point, above which, the liquid crystal lost its birefrigerance properties and cannot bend the light path anymore. Thus the polarizer will then be the only factor which affect incoming and out coming light. When the LCD is cooled down to below its clearing point, the display should be working again. The temperature for the clearing point varies greatly from material to material and you should contact our engineers regarding what you have. Normally a safe margin should be used to avoid clearing point when designing the display.

The lighter sensor measures the outside brightness according to different environments and sends the information to display. Display will adjust the brightness automatically.

Winmate �light sensor� technology are now available for 8.4�, 10.4�,12.1�, 15�, 17�, and 19� LCD with specific panel option. Please contact with sales for more detail information.

TouchScreen Solutions is a specialist manufacturer of touchscreens, optical filters to enhance the performance of electronic displays, and transparent composites.

The electronic controls effectively divide the screen into pixel sized sensing cells, using microfine wires which are not visible on a powered display. These wires are connected to a controller board, and an oscillation frequency is established for each wire. Touching the glass causes a change in the frequency of the wires at that particular point, the position of which is calculated and identified by the controller. Unlike other capacitive systems where the operator touches the actual conducting surface of the sensing panel, the active component of the sensor can be embedded up to 25mm from the touch surface ensuring long product life and stability.

The touchscreen can be supplied with the options of anti�glare or anti-reflection coatings, thermal toughening or chemical strengthening and privacy or contrast enhancement filters. The front glass of the touchscreen acts as a dielectric and enhances the capacitance of the touchscreen.

Touchscreen is proven to meet today�s demanding requirements for ATM�s, web phones, ticket machines, medical displays, industrial displays, pay-at-the-pump gas machines, and interactive kiosk systems. The touchscreen is durable and dependable, its construction protects against damage caused by moisture, heat and even vandalism.

Simple calibration and set-up with Windows 98, NT, 2000, XP and Linux. Mouse emulation with Select on Touch, Select on Dwell, Select on Release and Drag and Drop.

1. How much power consumption is the extreme high brightness LCD? It is very important because all of our outdoor LCD is in completely sealed enclosures keeping it cool is a very huge Challenge. Not mentioned the hot temperature around 40-50C area.

2. Also, you need to determine how far is viewer distance. Because high brightness (3000-5000nits LCD) might Damage eyesight if the viewer is too closed. LCD is design with high resolution for people to see it very closely, so extreme high brightness doesn"t make sense for outdoor LCD. If they want to put on extreme high brightness LCD on roof top to attract audience which LCD is not even big enough for seeing from far away. Most case customer will use LED which is more reliable and cost effective if it is larger than 82".

3. High chance rejection from city sign official. Many LED billboard brightness can goes up to 5000-7000nits, but the local government agency will not approve this brightness, because it is traffic distraction for driver or other people. So, it doesn"t make sense to spend a fortune on extreme high brightness but need to dim it down back to 1000-1500nits.

4. Viewable under sunlight is not just brightness only, it involve contrast ratio, reflection of the front glass and content graphics contrast such as (red and white). Sunlight readable is combination of all above, not just brightness only.

4. Viewable under sunlight is not just brightness only, it involve contrast ratio, reflection of the front glass and content graphics contrast such as (red and white). Sunlight readable is combination of all above, not just brightness only.

3. All the major branded LG and Samsung LCD manufacturer the most brightness that they do is only 1000-2000nits because we believe this major LCD maker already done a study on what is the most feasible and comfortable LCD brightness for outdoor. That"s why all the high brightness (3000-5000nits) maker is after market vendor without any study about the what is most suitable brightness for different applications, only advertising high brightness is not the solution. If you ask these vendor for outdoor enclosure which they will not provide or guaranteed it will work because they know it is a huge Challenge to cool down the display. Just like you are buying a 800 horse power car, but you still need to design the car frame and cooler to make this engine run safely on the road, which this extreme high brightness won"t help you to design that.

Panasonic"s display arm, Panasonic Liquid Crystal Display Company, has announced the development of an in-plane switching (IPS) panel family boasting 1,000,000:1 static contrast ratio - the highest ever claimed by an LCD manufacturer.

Those who have been shopping for a monitor or TV in the last decade or so will be all too familiar with manufacturers" tendency to overstate the contrast - the distinction between fully-white and fully-black on the same panel - of their displays. Typically, this involves claiming a 1,000,000:1 "dynamic" contrast ratio - a trick which lowers the backlight level in dark scenes and boosts it in bright scenes to simulate high contrast. Panels based around organic light-emitting diode (OLED) technology, by contrast, have a high static contrast thanks to the ability to toggle the lighting on a per-pixel rather than per-panel or per-zone level, but these displays are more costly and complex to manufacture.

Panasonic"s display division"s new screens, though, are claimed to offer a 1,000,000:1 static contrast ratio for the first time in an IPS LCD panel - some 600 times higher, the company claims, than its nearest competition. The company"s technology is based around light-modulating cells permitting pixel-by-pixel control of backlight intensity in much the same way as OLED panels but, it claims, without the need to upgrade existing liquid crystal panel manufacturing equipment - greatly dropping the cost compared to retooling for OLED.

According to Panasonic"s internal testing, the panels treated with the additional layer of light modulating cells are capable of displaying a brightness of 1,000 candela per metre squared (cd/m²) and 0.001cd/m² simultaneously, without losing the viewing angles or colour gamut of the IPS panel. It plans to manufacture the panels in a range of sizes, from large-scale TV panels to professional-grade monitors for medical and industrial use and even down to in-car computer displays.

The monitor is one of the most essential computer components. For gamers the quality of the monitor is, or should be, the highest priority, and for all users the monitor largely contributes to ergonomics, comfort and safety. Interestingly, some gamers spend hundreds and even thousands dollars for video cards and gaming accessories, but sometimes forget that their monitor has a direct influence on the gaming experience and should be chosen as carefully as the rest of gaming components. And whichever custom computer gamers are aiming to build, without a good quality monitor each dollar spent might not worth it in the end. On the other hand, a good monitor will always allow the user to have better gaming experience and comfort, even if his or her computer wasn’t built with high end components.

When choosing the monitor an inexperienced user could be easily entrapped with the variety of different technical details and characteristics that indicate different features of the particular model. So, let us review the most essential ones and help you to identify which features to pay attention before pulling out the wallet…

Usually, the first thing that comes to mind – “the bigger the better!”, but this can be very misleading. Assess your gaming space/environment and available options for monitor allocation/installation. There would be no advantage to buying a monitor with a screen size bigger than 27”, if you plan to sit right in the front of it, say two feet away. It will be just difficult to grasp the whole area of the screen and user would have to turn their head all the time, which will naturally lead to premature tiredness and discomfort. However, sizes smaller than 23” are also not good enough for comfortable gaming experience due to smaller picture and forced eyes stress. So, we recommend screen sizes between 23-27”, but with consideration of your gaming space.

Unfortunately, there are a lot of myths related to this parameter and the general one is that higher brightness will lead to problems with your vision. Don’t buy it! Yes, high settings of brightness may result with discomfort vision conditions, but you always can reduce it up to comfortable level of your eyes. Don’t forget the ambient light too- if your monitor will have enough brightness capacity, you will always be able to adjust it even in very bright ambient light conditions.

The contrast ratio is the difference between the whitest white and the darkest black that the monitor can reproduce, which expressed as 1000:1, for example. And as we mentioned the “brightness rule” here – the more contrast (contrast ratio) monitor has – the better, but, there is a catch here – the recommended contrast ratios usually vary from 1000:1 to 3000:1. If you see a monitor with a contrast ratio more than 3000:1 it is most probably a marketing hook. Anyway, trust your own eye and check the contrast level of the particular monitor in a store before ordering online. Don’t forget about ambient light as well – it has a direct impact on the contrast perception – the more light falling into monitor screen, the less contrast will be visible.

The pixel response time indicates the full time that a pixel needs to change its color measured in milliseconds (ms). The less time pixels needs to change – the better. Why? Because during gameplay a longer time will lead to blurred, unnatural picture, which might be unacceptable in terms of visual perception for such game genres as first person shooters, for example. Shorter response time will make the image more realistic and crisp. Fortunately, most of the modern LCD monitors has a response time between 2-4 milliseconds, which is generally acceptable for majority of gamers. Although, true gaming monitors are capable to bring this parameter down to 1 millisecond, but they cost more.

This characteristic of the monitor requires specific attention and we do not recommend to make an actual purchase before you find out which panel type the monitor you are going to buy has. There are nearly dozens of different panel type technologies and variations developed and used for manufacturing computer monitors and TVs, but describing them all would be a whole new topic, so we just mention three main ones – TN (TN-film), IPS and MVA(PVA). Each of them has their own specific characteristics such as: pixel response time, viewing angles, color rendition, power consumption, connectivity and usability.The simplest one is TN panel. It has the low pixel response time (1-2 ms), low power consumption and low price, but the rest is not good: narrow viewing angles (170/160), poor color rendition, relatively low contrast ratio (usually 300:1 and up to 1000:1 for some models with “dynamic contrast” feature enabled) and limited connectivity options – not exactly the gamers choice, unless the budget is very, very limited and pixel response time is the priority for action games.

IPS type panels have more advantages in comparison with TN-film: natural color rendition, widest viewing angles in comparison with TN and MVA (170/170) and slightly better contrast ratio (up to 1100:1). And although the older IPS panels have quite a long pixel response time – up to 5 milliseconds, the recent generations has reached the TN level of 2-3 milliseconds. All this makes monitors with IPS panels a very good choice for gaming, but the cost may be considerable depending on brand, screen size and other options and for high-end models – very expensive.

MVA(PVA) panels were initially developed as a compromise between TN and IPS technologies and had one biggest disadvantage that was almost unacceptable for gaming – pixel response time of 5-6ms. The latest generations of MVA panels has more advanced technologies in this respect, but still not good enough for very dynamic games. The other parameters are either relatively good or very good:, a contrast ratio of 5000:1 nails the TN and IPS without a doubt, much better color reproduction than TN, wide viewing angles. In general, MVA panels cost more than TN, but still cheaper than IPS. The final price tag would very much depend on brand, screen size, connectivity and usability options. All in all, this type of the monitors is not a primary choice of gamers, although still better than TN if not planned to play dynamic games.

Trust your own eyes – check available options not only by the specs, but by asking the retailer to demonstrate all the features in real-life situations. Because, at the end of the day it is really up to you to weigh up the advantages and disadvantages of the monitors you are comparing and understanding the general performance characteristics of different panels would be a great starting point.

One more thing. The real gaming monitor is an expensive piece of computer component to buy. As well as any other cool gaming accessories. However, if your budget allows you to buy one – you will get the maximum enjoinment out of playing games on it – we can guarantee it. It is like playing the same game with your friend on the different monitors – cheap and simple and expensive and full of advanced features. The result of the game itself will be the same, but perception and enjoyment – different. The choice, as always, is yours.

Extreme Dynamic Range.Extreme Dynamic Range (XDR) takes brightness and contrast to the extreme, surpassing what is considered standard dynamic range (SDR) and high dynamic range (HDR).

1,000,000:1 contrast ratio.A contrast ratio of 1,000,000:1 provides an incredible range of contrast, which along with extreme brightness, better replicates what the eye can see in real life.

Super-wide viewing angle.Polarizer technology reduces light leakage 25x off-axis versus a typical LCD display, providing accurate viewing from any angle.

Reference modes.Pro Display XDR has several reference modes that tailor the display’s color, brightness, gamma, and white point to match the reference requirements for each media type, including several predefined reference modes for High Dynamic Range, HD, and SD video-digital cinema. There are also modes for broader use cases such as photography, internet and web development, and design and print. For more information, see the Apple Support article Use reference modes with your Apple display.

True Tone technology.The lighting around you can affect the way you see onscreen colors. True Tone on Pro Display XDR uses a breakthrough dual ambient light sensor design—a sensor on the front and another on the back—to better gauge your overall lighting environment. This allows more exact adjustments to the color and intensity of your display, so you can have accurate viewing in all lighting conditions. For more information, see Change Displays settings on Mac in the macOS User Guide.

Note:The Pro Display XDR undergoes a state-of-the-art factory display calibration process on the assembly line to ensure the accuracy of the P3 wide color panel and the individual backlight LEDs. Color professionals who use a workflow tuned to a particular calibration instrument can recalibrate the Pro Display XDR. See the Apple Support article Measuring and calibrating Apple Pro Display XDR.Subscription required for Apple TV+.

When shopping for a computer monitor, you"re bombarded with specifications like native resolution and response time, but one of the more misunderstood monitor features is contrast ratio. As with many things, bigger is generally better when it comes to contrast ratio, although it is only one factor to consider when purchasing a monitor -- and manufacturers sometimes use confusing terms like "dynamic contrast ratio" to make things more confusing. Still, if having a huge contrast range is tops on your priority list, there are some numbers to look for.

What Contrast Ratio Means Simply put, the contrast ratio of a monitor is the the measured difference between the darkest blacks and the brightest whites a display is capable of producing. This is expressed in ratio form, such as "4000:1" and is read as "four thousand to one." The larger the first number, the higher the contrast ratio of the monitor and the more difference there is between pure black and pure white.

Why Contrast Ratio Is Important With a wider range between black and white, a monitor is capable of deeper, richer colors with more visible details in shadows and highlights. This is particularly important if the monitor is being used for photo or video editing, graphic design, watching movies or even playing video games. Essentially, any application where being able to detect small differences in color and brightness will benefit from a higher contrast ratio.

Manufacturer Claims and Measurement Irregularities Unfortunately, there is no industry standard for measuring contrast ratio, so it"s entirely possible for two different monitors to have identical published specifications while actually appearing rather different from each other. Still, while the measurements cannot be considered scientific or consistent from monitor to monitor, they provide a basic baseline for comparison while visually inspecting the picture on two different displays.

Highest Available With the advent of local-dimming LED backlit monitors, manufacturers list both the dynamic contrast ratio as well as the static contrast ratio. LED monitors can actually shut off the backlight in the portions of the monitor that have a pure black area, leading to contrast ratio measurements that can top 50,000,000:1. The static contrast ratio, which is a more realistic measurement of monitor contrast performance, is the measurement of the difference between blacks and whites with the backlight at its lowest possible setting while remaining powered on. Higher-end monitors can have a static contrast ratio up to 3000:1, giving a large dynamic range.

Responsible for performing installations and repairs (motors, starters, fuses, electrical power to machine etc.) for industrial equipment and machines in order to support the achievement of Nelson-Miller’s business goals and objectives:

• Perform highly diversified duties to install and maintain electrical apparatus on production machines and any other facility equipment (Screen Print, Punch Press, Steel Rule Die, Automated Machines, Turret, Laser Cutting Machines, etc.).

• Provide electrical emergency/unscheduled diagnostics, repairs of production equipment during production and performs scheduled electrical maintenance repairs of production equipment during machine service.

In the world of flat panel monitor systems, many technical terms are used daily that are considered “normal” to anyone in the industry. These terms get used so freely and frequently that we forget lay people may not be fully familiar with their meaning. At least in the context in which we’re using them. We hope our readers find this list helpful.

A higher contrast ratio is not necessarily better. If the contrast ratio is too high, sometimes shadow colors can be too firm, making images appear stiff and rendering it difficult to match colors with output. The ability to adjust contrast ratio can also be used as a criterion for choosing a calibration monitor.

ASCR (ASUS Smart Contrast Ratio) Technology automatically adjusts the luminance of the backlight for better displays according to the image contents, and improves the contrast ratio to 50000:1 �C resulting in more realistic depictions of night scenes during games or movies.

Splendid Video Intelligence TechnologyThe ASUS VH242H adopts a color engine to detect activation and usage of video applications and automatically optimizes image quality with intelligent color, brightness, contrast and sharpness corrections for the best visual results. The Splendid offers 5 video modes designed for scenery, theater, gaming, night view, and standard images, 3 skin tones of yellowish, natural and reddish to add a human touch to videos on PC. You can see optimized images on screen and select five modes via hotkey quickly at your will.

The VL-10.4N is an industrial 10.4″ with 4:3 aspect ratio industrial LCD monitor.They offer 800 x 600  resolution and a 4:3 aspect ratio.  Additionally, the panels offer up to 250 nits brightness. They are ideal for use with analog cameras, and BNC cameras. Likewise, many legacy machine vision systems benefit. Furthermore, we build them with true industrial-grade components for long-term reliability. For example, they receive our exclusiveTRU-Tufftreatment. Moreover, theTRU-Tuffprocess includes RTV silicone on all connections and critical components.  Additionally, all wires are dressed, tie-wrapped and secured. Lastly,  we apply ThreadLock to all screws to ensure they remain secured. Most importantly, this results in a rugged, dependable monitor you can rely on. They can operate on 12-24VDC.

The VL-10.4N also provide a brighter-than-normal, with 250 nits brightness. The result is crisp, vibrant video images.TRU-Vu industrial LCD monitors are specifically designed for use in demanding industrial, commercial,  and A/V applications. For instance, every TRU-Vu monitor utilizes industrial-grade components and high-end LCD panels not found in retail or consumer-grade monitors. This ensures superior image quality, improved performance and greater durability.

The VL-10.4N industrial 10.4″ LCD monitors offer a variety of video inputs and are available in standard, open frame, rack mount, panel mount, NEMA/IP waterproof, and touch screen configurations. An extensive list of available OEM options enables you to customize a solution to your specific needs. We offer numerous other monitors in similar sizes and brightness levels from which to choose. They can also be private-labeled with your company name and/or logo on the front bezel.

The VL-10.4N 10.4 inch monitor 4:3 aspect ratio are deployed in many industries and applications. This includes manufacturing plants, machine vision inspection systems, and food and beverage plants. They are also found in surveillance systems, specialty vehicles and museums.

With over 200 LCD monitors and touch screens on our site, selecting the ideal equipment, or touch screen solution may be a bit overwhelming.To help narrow-down the choices, check out ourAdvanced Search Tool. This enables you to filter by your own specific important features.  See all of our TRU-Vu Monitors also offers a wide range of LCD monitor mounts and stands.Custom OEM LCD Displays and Private Label Monitors are also an option if you have very specific requirements.

However demanding your application may be, we will provide the very best solution.  Our vast client base shows our versatility in providing the very best monitors in the industry.

Finally, our team members are ready to help! We can determine the exact solution that will meet your specific needs . Certainly, TRU-Vu will help provide crystal-clear images for your operating requirements . Call(847) 259-2344today to speak with one of our specialists. Above all, we will listen.  It’s one of the things we do best.  Our professional advisors will ensure the monitor or touch screen you receive will be and do everything you had hoped it would!

Color gamut is a measure of how many colors can be represented on a display. The higher the color gamut, the more colors represented, making color more rich and saturated. While no display can come close to what is seen with the human eye, a 100% color gamut panel is the best available in PC display. When a panel is 100% color gamut, it’s typically described as Adobe RGB. The XPS 15 4K Ultra HD display is factory color measured and color coordinates are saved onto the panel so you can reproduce color accurately. They are vivid, show more shades, higher saturation and more colorfulness. The user sees a more pleasant, colorful and accurate image. The XPS 15 and 17 are the only laptops that are true 100% minimum Adobe RGB, meaning the panel can represent all color in the Adobe color space without compromise. Professionals are able to get a full color representation of their content in the field - they can take a photo with an RGB setting on their camera, use Adobe software, and see that image on their display with exactly the same colors represented.