heat tolerance of an lcd touch screen for sale

There are several industrial applications that require LCD displays to operate in extreme temperature environments such as in military, food processing, gas/fuel pumps, medical, manufacturing, and non-climate-controlled facilities, among others. Take note that typical monitors can only be used in environments with 0�C~50�C temperature range. UV exposure, moisture, and humidity also affect the overall temperature within a specific environment. iTech Company offers a range of LCD monitors that can function properly in a wide working temperature range from -30℃ to +80℃. These products are already proven and tested to maintain its original luminance under such temperatures.

While the range of operating temperature is a relevant consideration for the device to withstand extreme hot or cold environments, other factors must also be taken into account for the overall performance of the device. These includethe clarity of the image, environmental protection, LED backlighting, quality of the components, andvarious options available.

iTech Company’s products are equipped with these useful features to deliver great performance even in harsh working conditions. These are available in different monitor sizes and resolutions. It offers superior image quality with wide viewing angle. Some of the optional features include the touch screen functionality for interactive application and the level of brightness to ensure that the screen content is highly visible in all lighting conditions. Moreover, these wide operating temperature LCD displays are available in different types including open frame, panel mount, andchassis mount.

On the other hand, iTech Company also provides a customized design for its clients, which is a perfect solution for OEM customers. Just give us your specifications and we’ll come up with a product that will work great for your application.

This series of products arewide temp displays which are designed for applications under extreme heat or extreme cold. While these are especially designed for a wider range of extreme temperatures, it still maintains high quality visual display. Choose from various range of operating temperaturesdepending on the needs of your application, from -20�C ~ 50�C to -20�C ~ 70�C. They are available in various sizes from 6.5” to 15“, with resolutions from 640x480 to 1024x768.

On the other hand, another significant feature with this line of products is the sunlight readability which enables the user to see sharp and clear images even if the screen is under direct sunlight. It features brightness levels which range from 350nits to 1600nits.It utilizes a LED backlighting technology for delivering superior image quality. With this, you can expect full graphic capability and daylight visibility.

Select an LCD Wide Temp Sunlight Readable Monitor below that best suit your needs. For a detailed information, just click on the product model. We ensure that our productsdeliver a reliable performance under demanding conditions.

The 2409 series of displays expands Xenarc Technologies’ product line into a larger, more specialized segment of the display market. These 24” High Brightness, 1000NIT displays feature IP69K ruggedization, which allows the monitors to withstand close range, high temperature and high pressure spray downs for sanitization, and rigid stainless steel enclosures that could withstand harsh detergents, acidic/alkaline disinfectants, and seawater. These Xenarc displays will satisfy the stringent sanitation requirements of food processing, beverage production manufacturing, and chemical factories. A wide temperature range allows these displays to operate at temperatures down to -22F (-30C) and withstand temperatures up to 158F (70C), making them perfect for food processing applications where refrigeration or freezing is a must, or in marine and outdoor applications where marine spray or sub-freezing temperatures and direct sun exposure may make other displays unusable.

The 2409YNH includes a 5mm tempered cover glass and utiilizes a wide viewing angle, full HD IPS panel that features a native resolution of 1920x1080, and VGA and HDMI inputs. VESA mounting holes on the back (100mm and 200mmx100mm) come standard, allowing these displays to be mounted in virtually any situation. Whether outdoors and exposed to the elements, or indoors in extreme temperature environments, the rugged, reasonably priced 2409 series displays are built specifically to enhance and expand any application to the limit. For the Touchscreen version, please take a look at our 2409CNH.

Why do our 24" Display products outlast others in extreme conditions? Why do our products have a wider temperature range and a wider voltage input range? It is because our mission is to offer engineers, automators and system integrators the best products for any situation. By utilizing high grade components, this display is perfect for industrial, in-car computing applications or any other applications where a small, durable, environmentally rugged display is required, including but not limited to:

Data Monitoring - Cloud, IoT, Medical, Logistics, Inventory Management, Oil & Gas/Utilities, Law Enforcement, Broadcasting, Veterinary, First Person View

The water intrusion tests themselves are done by placing the product on a turntable with a rotational speed of 5 ±1 revolutions per minute. The product is then sprayed at close range at a rate of approximately 4 gallons/16 liters per minute with water pressure of between 1160-1450 psi, at a temperature of 176°F/80°C.

The nozzle from which the water is sprayed is held between 4 and 6 inches from the product, at a variety of angles. Following this rigorous testing procedure, the product is deemed as having successfully achieved the rating if it completely resists water ingress.

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PO Box, Afghanistan, Albania, Algeria, American Samoa, Andorra, Angola, Anguilla, Antigua and Barbuda, Argentina, Armenia, Aruba, Azerbaijan Republic, Bahamas, Bangladesh, Barbados, Belize, Benin, Bermuda, Bhutan, Bolivia, Bosnia and Herzegovina, Botswana, Brazil, British Virgin Islands, Brunei Darussalam, Burkina Faso, Burundi, Cameroon, Cape Verde Islands, Cayman Islands, Central African Republic, Chad, Chile, China, Colombia, Comoros, Cook Islands, Costa Rica, Côte d"Ivoire (Ivory Coast), Democratic Republic of the Congo, Djibouti, Dominica, Dominican Republic, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Ethiopia, Falkland Islands (Islas Malvinas), Fiji, French Guiana, French Polynesia, Gabon Republic, Gambia, Georgia, Ghana, Gibraltar, Greenland, Grenada, Guadeloupe, Guam, Guatemala, Guernsey, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Hong Kong, Iceland, India, Iraq, Jamaica, Jersey, Jordan, Kazakhstan, Kenya, Kiribati, Kyrgyzstan, Laos, Lesotho, Liberia, Libya, Macau, Madagascar, Malawi, Maldives, Mali, Marshall Islands, Martinique, Mauritania, Mauritius, Mayotte, Micronesia, Monaco, Mongolia, Montserrat, Morocco, Mozambique, Namibia, Nauru, Nepal, Netherlands Antilles, New Caledonia, Nicaragua, Niger, Nigeria, Niue, Palau, Panama, Papua New Guinea, Paraguay, Peru, Puerto Rico, Qatar, Republic of the Congo, Reunion, Russian Federation, Rwanda, Saint Helena, Saint Kitts-Nevis, Saint Lucia, Saint Pierre and Miquelon, Saint Vincent and the Grenadines, San Marino, Senegal, Seychelles, Sierra Leone, Solomon Islands, Somalia, South Africa, Sri Lanka, Suriname, Svalbard and Jan Mayen, Swaziland, Taiwan, Tajikistan, Tanzania, Togo, Tonga, Trinidad and Tobago, Tunisia, Turkmenistan, Turks and Caicos Islands, Tuvalu, Uganda, Ukraine, United Arab Emirates, Vanuatu, Vatican City State, Venezuela, Virgin Islands (U.S.), Wallis and Futuna, Western Sahara, Western Samoa, Yemen, Zambia, Zimbabwe

Ingress Protection (IP) Rating is critical to evaluate the environments in which our full range of LCD monitors will be used. This rating classifies the amount of protection our enclosed LCD monitor has against the intrusion of foreign objects that could cause damage, falter, and safety issues. IP Rating is two numeral designation rate protection based on solid objects (dust, soil, contaminants, etc.) and liquid ingress (water, or other fluid substance). With this rating, users can know exactly how protected our LCD monitor is. IP ratings are specified with two digits, IPXX. The first digit defines the protection from solids, and the second digit defines the protection from liquids. For instance, our Panel Mount Sunlight Readable display has a front IP rating of 65 meaning that it would be completely protected from dust, and low water jet spraying in all directions.

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The monitor is used to monitor, display, check, store, alarm and transmit many physiological parameters, including ECG (3/5/12 lead, arrhythmia analysis, ST segment analysis and HR ), RESP, SpO2,PR, NIBP, TEMP and IBP, etc. It is applicable for use by adult, children and neonate.

The monitor can be used in medical institutions or during transport monitoring inside/outside the hospital environment, it is used by clinical professionals or under their guidance or professionals via training, it is not suitable for use in family.

Modern LCD screens have a great many uses. Not only are they now the system of choice for our home TVs and computers but their use in digital signage has made them a common sight in many shopping malls, airports and other locations with high quantities of people.

Even outdoor locations are no barrier to the use of modern LCD screens with outdoor digital signage a rising medium now seen in many town centers, car parks, front of stores and train station platforms.

All this out of home use means many screens operate in locations test the temperature limits of LCD displays. While waterproof screens and LCD enclosures designed for rugged applications provide the ability of the screen to operate-even in outdoor locations, one consideration often overlooked, is that of temperature.

LCD screens have a limited temperature range. Not only will the electronics inside an TV screen overheat and cause failure if the screen gets too hot, but the liquid crystal itself will begin to deteriorate under hot conditions.

The same is true of environments where temperatures fall below zero, causing a screen to stop functioning. A typical LCD TV has an operating range between 0°C (32°F) and 32°C (90°F).

Of course, many indoor and outdoor locations don’t suffer temperatures outside of this range, but many locations do and placing screens in these areas can prove challenging.

One of the problems with using a screen in hot locations is that the screen itself produces quite a bit of heat. When housed in an outdoor enclosure, the heat has to be continuously removed. While cooling fans combined with an air-vent normally carry out this task on an LCD, the need to prevent moisture from getting to the screen makes the task more complicated.

To get around this problem, specially shaped vents provide an exit for hot air while preventing rainfall and other moisture from getting in. In some locations where ambient temperatures are extremely high, screens need air conditioning to ensure they don’t exceed the maximum operating temperature.

In cold climates the opposite problem occurs. The need to keep heat in often requires insulation of the screen enclosure. Often this can trap enough of the heat generated by the screen itself to keep the internal temperature above minimum, but in some locations, even this isn’t enough. Heaters, controlled by thermostats provide extra heat in these circumstances, which enables the use of LCD displays in extremely cold locations such as ski-resorts and in Arctic regions.

Elo takes great pride in controlling many aspects of an LCD display, including brightness, contrast, color and other parameters. For more information about some of the parameters and tolerance expected from one monitor to the next, even when comparing identical monitors, please read the information below.

Analog video signal:Scalar needs to convert the analog to a digital signal and it’s unavoidable that there will be distortion of color performance in this process.

Color format:Different color formats can cause different color performance. RGB uses additive color mixing because it describes what kind of light needs to be emitted to produce a given color. RGB stores individual values for red, green and blue. RGBA is RGB with an additional channel, alpha, to indicate transparency.

Elo includes some basic settings in the On-Screen Display (OSD) to control the appearance of the display. The available adjustments vary with the type of monitor. Please reference the “User Guides” located under the “Resource” section on the product’s webpage. Check the following settings and any other options that can affect the picture:

Furthermore, the age and use of a monitor will affect its LCD screen. It is important to keep in mind that monitor manufacturers can use multiple part suppliers for the same products—two “identical” monitors might have LCD panels that are not from the same supplier.

You don"t necessarily want to set the monitors to the same settings. Even though they are usually close, two of the same exact monitors can show colors slightly different. You may need to adjust the RGB settings on one monitor to match the other. The best way to adjust them is to bring up a perfectly red screen on both monitors (use MS Paint because you can set the color just the way you want) and then adjust them till they look the same. Repeat for blue and green. Once you get it the way you want, write down the RGB settings just in case your monitor resets and you lose your settings.

Each monitor is tested at the factory, and the color is manually calibrated to ensure it is within an allowable range. Please note, the Elo warranty does not cover color uniformity differences between two monitors. In fact, both are in the manufacturer specification for uniformity.

Elo does “White Balance” to make sure all color temperatures (5500K, 6500K, 7500K and 9300K) are within the spec and records all of the data for each Elo monitor on the production line

OVERVIEW The ViewSonic"s TD3207 is the ideal solution for commercial and industrial spaces. Designed for heavy, continuous usage, the open frame series TD3207 delivers a 24/7 long-life. Resistant to moisture and scratches, the 3mm thick glass screen features an intuitive 10-point PCAP touch technology for maximum interactivity. Featuring SuperClear® AMVA panel technology, the device delivers lifelike imagery, vivid color, and constant brightness of up to 450 nits. Connection options include HDMI and DisplayPort inputs for effortless sharing capabilities and an RS232 allows you to control the device remotely. Equipped with VESA mounting design for any surface and screen orientation, the touch screen is the perfect display for various environments.

Touch panel technologies are a key theme in current digital devices, including smartphones, slate devices like the iPad, the screens on the backs of digital cameras, the Nintendo DS, and Windows 7 devices. The term touch panel encompasses various technologies for sensing the touch of a finger or stylus. In this session, we"ll look at basic touch panel sensing methods and introduce the characteristics and optimal applications of each.

Note: Below is the translation from the Japanese of the ITmedia article "How Can a Screen Sense Touch? A Basic Understanding of Touch Panels"published September 27, 2010. Copyright 2011 ITmedia Inc. All Rights Reserved.

A touch panel is a piece of equipment that lets users interact with a computer by touching the screen directly. Incorporating features into the monitor like sensors that detect touch actions makes it possible to issue instructions to a computer by having it sense the position of a finger or stylus. Essentially, it becomes a device fusing the two functions of display and input.

It"s perhaps not something we think of often, but touch panels have integrated themselves into every aspect of our lives. People who enjoy using digital devices like smartphones interact with touch panels all the time in everyday life—but so do others, at devices like bank ATMs, ticket vending machines in railway stations, electronic kiosks inside convenience stores, digital photo printers at mass merchandisers, library information terminals, photocopiers, and car navigation systems.

A major factor driving the spread of touch panels is the benefits they offer in the way of intuitive operation. Since they can be used for input through direct contact with icons and buttons, they"re easy to understand and easily used, even by people unaccustomed to using computers. Touch panels also contribute to miniaturization and simplification of devices by combining display and input into a single piece of equipment. Since touch panel buttons are software, not hardware, their interfaces are easily changed through software.

While a touch panel requires a wide range of characteristics, including display visibility above all, along with precision in position sensing, rapid response to input, durability, and installation costs, their characteristics differ greatly depending on the methods used to sense touch input. Some typical touch-panel sensing methods are discussed below.

As of 2010, resistive film represented the most widely used sensing method in the touch panel market. Touch panels based on this method are called pressure-sensitive or analog-resistive film touch panels. In addition to standalone LCD monitors, this technology is used in a wide range of small to mid-sized devices, including smartphones, mobile phones, PDAs, car navigation systems, and the Nintendo DS.

With this method, the position on screen contacted by a finger, stylus, or other object is detected using changes in pressure. The monitor features a simple internal structure: a glass screen and a film screen separated by a narrow gap, each with a transparent electrode film (electrode layer) attached. Pressing the surface of the screen presses the electrodes in the film and the glass to come into contact, resulting in the flow of electrical current. The point of contact is identified by detecting this change in voltage.

The advantages of this system include the low-cost manufacture, thanks to its simple structure. The system also uses less electricity than other methods, and the resulting configurations are strongly resistant to dust and water since the surface is covered in film. Since input involves pressure applied to the film, it can be used for input not just with bare fingers, but even when wearing gloves or using a stylus. These screens can also be used to input handwritten text.

Drawbacks include lower light transmittance (reduced display quality) due to the film and two electrode layers; relatively lower durability and shock resistance; and reduced precision of detection with larger screen sizes. (Precision can be maintained in other ways—for example, splitting the screen into multiple areas for detection.)

Capacitive touch panels represent the second most widely used sensing method after resistive film touch panels. Corresponding to the terms used for the above analog resistive touch panels, these also are called analog capacitive touch panels. Aside from standalone LCD monitors, these are often used in the same devices with resistive film touch panels, such as smartphones and mobile phones.

With this method, the point at which the touch occurs is identified using sensors to sense minor changes in electrical current generated by contact with a finger or changes in electrostatic capacity (load). Since the sensors react to the static electrical capacity of the human body when a finger approaches the screen, they also can be operated in a manner similar to moving a pointer within an area touched on screen.

Two types of touch panels use this method: surface capacitive touch panels and projective capacitive touch panels. The internal structures differ between the two types.

Surface capacitive touch panels are often used in relatively large panels. Inside these panels, a transparent electrode film (electrode layer) is placed atop a glass substrate, covered by a protective cover. Electric voltage is applied to electrodes positioned in the four corners of the glass substrate, generating a uniform low-voltage electrical field across the entire panel. The coordinates of the position at which the finger touches the screen are identified by measuring the resulting changes in electrostatic capacity at the four corners of the panel.

While this type of capacitive touch panel has a simpler structure than a projected capacitive touch panel and for this reason offers lower cost, it is structurally difficult to detect contact at two or more points at the same time (multi-touch).

Projected capacitive touch panels are often used for smaller screen sizes than surface capacitive touch panels. They"ve attracted significant attention in mobile devices. The iPhone, iPod Touch, and iPad use this method to achieve high-precision multi-touch functionality and high response speed.

The internal structure of these touch panels consists of a substrate incorporating an IC chip for processing computations, over which is a layer of numerous transparent electrodes is positioned in specific patterns. The surface is covered with an insulating glass or plastic cover. When a finger approaches the surface, electrostatic capacity among multiple electrodes changes simultaneously, and the position were contact occurs can be identified precisely by measuring the ratios between these electrical currents.

A unique characteristic of a projected capacitive touch panel is the fact that the large number of electrodes enables accurate detection of contact at multiple points (multi-touch). However, the projected capacitive touch panels featuring indium-tin-oxide (ITO) found in smartphones and similar devices are poorly suited for use in large screens, since increased screen size results in increased resistance (i.e., slower transmission of electrical current), increasing the amount of error and noise in detecting the points touched.

Larger touch panels use center-wire projected capacitive touch panels in which very thin electrical wires are laid out in a grid as a transparent electrode layer. While lower resistance makes center-wire projected capacitive touch panels highly sensitive, they are less suited to mass production than ITO etching.

Above, we"ve summarized the differences between the two types of capacitive touch panels. The overall characteristics of such panels include the fact that unlike resistive film touch panels, they do not respond to touch by clothing or standard styli. They feature strong resistance to dust and water drops and high durability and scratch resistance. In addition, their light transmittance is higher, as compared to resistive film touch panels.

On the other hand, these touch panels require either a finger or a special stylus. They cannot be operated while wearing gloves, and they are susceptible to the effects of nearby metal structures.

Surface acoustic wave (SAW) touch panels were developed mainly to address the drawbacks of low light transmittance in resistive film touch panels—that is, to achieve bright touch panels with high levels of visibility. These are also called surface wave or acoustic wave touch panels. Aside from standalone LCD monitors, these are widely used in public spaces, in devices like point-of-sale terminals, ATMs, and electronic kiosks.

These panels detect the screen position where contact occurs with a finger or other object using the attenuation in ultrasound elastic waves on the surface. The internal structure of these panels is designed so that multiple piezoelectric transducers arranged in the corners of a glass substrate transmit ultrasound surface elastic waves as vibrations in the panel surface, which are received by transducers installed opposite the transmitting ones. When the screen is touched, ultrasound waves are absorbed and attenuated by the finger or other object. The location is identified by detecting these changes. Naturally, the user does not feel these vibrations when touching the screen. These panels offer high ease of use.

The strengths of this type of touch panel include high light transmittance and superior visibility, since the structure requires no film or transparent electrodes on the screen. Additionally, the surface glass provides better durability and scratch resistance than a capacitive touch panel. Another advantage is that even if the surface does somehow become scratched, the panel remains sensitive to touch. (On a capacitive touch panel, surface scratches can sometimes interrupt signals.) Structurally, this type of panel ensures high stability and long service life, free of changes over time or deviations in position.

Weak points include compatibility with only fingers and soft objects (such as gloves) that absorb ultrasound surface elastic waves. These panels require special-purpose styluses and may react to substances like water drops or small insects on the panel.

All in all, however, these touch panels offer relatively few drawbacks. Recent developments such as improvements in manufacturing technology are also improving their cost-performance.

The category of optical touch panels includes multiple sensing methods. The number of products employing infrared optical imaging touch panels based on infrared image sensors to sense position through triangulation has grown in recent years, chiefly among larger panels.

A touch panel in this category features one infrared LED each at the left and right ends of the top of the panel, along with an image sensor (camera). Retroreflective tape that reflects incident light along the axis of incidence is affixed along the remaining left, right, and bottom sides. When a finger or other object touches the screen, the image sensor captures the shadows formed when the infrared light is blocked. The coordinates of the location of contact are derived by triangulation.

While this type differs somewhat from the above touch panels, let"s touch on the subject of electromagnetic induction touch panels. This method is used in devices like LCD graphics tablets, tablet PCs, and purikura photo sticker booths.

This input method for graphics tablets, which originally did not feature monitors, achieves high-precision touch panels by combining a sensor with the LCD panel. When the user touches the screen with a special-purpose stylus that generates a magnetic field, sensors on the panel receive the electromagnetic energy and use it to sense the position of the pen.

Since a special-purpose stylus is used for input, input using a finger or a general-purpose stylus is not possible, and the method has limited applications. Still, this has both good and bad points. It eliminates input errors due to the surrounding environment or unintended screen manipulation. Since the technology was intended for use in graphics tablets, it offers superior sensor precision—making it possible, for example, to change line width smoothly by precisely sensing the pressure with which the stylus is pressed against the screen (electrostatic capacity). This design approach also gives the screen high light transmittance and durability.

The table below summarizes the characteristics of the touch panels we"ve looked at. Keep in mind that even in devices based on the same sensing method, performance and functions can vary widely in the actual products. Use this information only as an introduction to general product characteristics. Additionally, given daily advances in touch-panel technological innovations and cost reductions, the information below is only a snapshot of current trends as of September 2010.

Each touch-panel type offers its own strengths and weaknesses. No single sensing method currently offers overwhelming superiority in all aspects. Choose a product after considering the intended use and environmental factors.