tft lcd temperature range quotation

When selecting a display, it is important to consider the temperatures at which it will work and, in addition, allow for the extraordinary temperature conditions that may occur in the application environment.

Today"s standard TFT displays usually have a working temperature range of -20 to + 70°C. TFT displays with a narrower operating temperature range, e.g. 0 .. + 70°C or 0… + 50°C are quite rare.

If the application works outdoors, we are naturally also interested in the lower temperature range. Minus 20°C occurs almost every winter in European conditions. It is only a few days, but it is necessary to consider such temperature. Temperatures around -30°C occur even more rarely, but there are years with such low temperatures. If you have a device that must be able to operate at such low temperatures, then the display with a temperature range of -30 to + 80 (85)°C is a clear choice.

However, there are also cases where a short-term reduced or even minimal readability of the display operating at a temperature lower than the allowed minimum are not a problem. However, there is a catch that under these circumstances the display may be irreversibly damaged. The point is that the storage temperature range is often the same as the working temperature range, so the manufacturer does not even allow to "store" or to expose the display to lower temperatures, even though in the off-state. This fact underlines the importance of considering the temperatures at which your equipment can work.

| -22 to +185 deg.F) model of a command-controlled touch TFT module designed to facilitate quick embedded GUI development and reduce system costs with powerful built-in commands.

This new display can operate in a wide temperature range -30 to +85 deg C (-22 to +185 deg. F) without any adverse effects. This is perfect for refrigeration and heating applications.

The GTWQ043C3B00PWA is based on Noritake VFD command sets. It has a combination of Noritake’s GU3000 ASCII-based text commands, full color image commands, and scalable-font compatibility. The module can work with a wide range of low and high-end micro-controllers using industry standard serial interfaces (Async., I2C, SPI, and USB).

24-bit RGB Interface, All View, Special Temperature Range, Operating Temp: -30°C to +85°C, Storage Temp: -40°C to +85°C, IPS, Resistive touch panel, 850 nits, RoHS Compliant.

The Transmissive polarizer is best used for displays that run with the backlight on all the time. This polarizer provides the brightest backlight possible. If you have a need for a bright backlight with lower power drain, transmissive is a good choice for this TFT LCD.

Focus LCDs can provide many accessories to go with your display. If you would like to source a connector, cable, test jig or other accessory preassembled to your LCD (or just included in the package), our team will make sure you get the items you need.Get in touch with a team member today to accessorize your display!

Focus Display Solutions (aka: Focus LCDs) offers the original purchaser who has purchased a product from the FocusLCDs.com a limited warranty that the product (including accessories in the product"s package) will be free from defects in material or workmanship.

24-bit RGB Interface, All View, Special Temperature Range, Operating Temp: -30°C to +85°C, Storage Temp: -40°C to +85°C, IPS, No touch panel, 920 nits, RoHS Compliant.

The Transmissive polarizer is best used for displays that run with the backlight on all the time. This polarizer provides the brightest backlight possible. If you have a need for a bright backlight with lower power drain, transmissive is a good choice for this TFT LCD.

Focus LCDs can provide many accessories to go with your display. If you would like to source a connector, cable, test jig or other accessory preassembled to your LCD (or just included in the package), our team will make sure you get the items you need.Get in touch with a team member today to accessorize your display!

Focus Display Solutions (aka: Focus LCDs) offers the original purchaser who has purchased a product from the FocusLCDs.com a limited warranty that the product (including accessories in the product"s package) will be free from defects in material or workmanship.

Noritake provides high performance touch LCD displays for industrial, commercial and retail applications. Noritake’s electronics division has been around since the creation of the Vacuum Fluorescent Display(VFD). They have grown to provide a wide array of products and services to ensure a smooth and efficient development cycle for your application. Customer support staff will gladly provide you with technical support to assist with your needs.

ASI-T-17711A1SPN/D is a 1.77 inch transflective TFT with a resolution of 160 x 128, SPI interface and with a brightness of 110 Nits; viewable in direct sunlight.

ASI-T-240DA10SMN/AQ is a 2.4 inch high brightness TFT with a resolution of 240 x 320, SPI & MCU interface, IPS all-angle view and with a brightness of 1000 Nits; viewable in direct sunlight. It also features an extra wide operating temperatures of -30 to +80C; perfect for extreme environmental applications.

ASI-T-350EA8RCY6/A is a 3.5 inch high brightness TFT with a resolution of 320 x 240, 24-bit Parallel RGB/Serial RGB/CCIR/YUV interface and with a brightness of 850 Nits; viewable in direct sunlight with Capacitive Touch Panel

ASI-T-350EA10SRN/A is a 3.5 inch TFT with a resolution of 320 x 240, SPI & RGB interface and with a high brightness of 1,000 Nits and wide temperature range of -30 - +85 C.

ASI-T-430FA2F6/AY is a 4.3 inch IPS TFT with a resolution of 480 x 272, RGB interface, a brightness of 220 nits, wide operating temperature and a capacitive touch panel.

ASI-T-430MA10FN/A is a 4.3 inch TFT with a resolution of 800 x 480, IPS all view, RGB interface, a brightness of 1000 Nits with an ultra wide temperature operating and storage range.

ASI-T-430MA8F6/A is a 4.3 inch TFT with a resolution of 800 x 480, IPS all view, RGB interface, a brightness of 850 Nits, capacitive touch panel with an ultra wide temperature operating and storage range.

ASI-T-700MAKFN/A is an industrial grade, high reliability, 7 inch TFT with a resolution of 800 x 480, 24-bit RGB interface, wide temperature range, IPS all view and with a high brightness of 1000 Nits; viewable in direct sunlight.

ASI-T-10251248AKLN/D is a 10.25 inch wide TFT, with a resolution of 1280 x 480, LVDS interface, IPS all view, with wide temperature operation and storage and a high brightness of 1,000 Nits.

ASI-T-1040GA6TN/D is a 10.4 inch wide TFT, with a wide operating temperature and a resolution of 640 x 480, All View display, RGB interface and a brightness of 500 Nits.

ASI-T-1040HB4LN/D is a 10.4 inch wide TFT, with a wide operating temperature and a resolution of 800 x 600, LVDS interface and a brightness of 400 Nits.

ASI-T-1210HB4LN/D is a 12.1 inch wide TFT, with a wide operating temperature, a resolution of 800 x 600, all view display, LVDS interface and a brightness of 450 Nits.

The T-57152GD042H-LW-AAN and the T-55923GD050J-LW-ABN, small-format TFT LCD modules designed for use in harsh environments, have been introduced by Kyocera.

The T-57152GD042H-LW-AAN, which measures 4.2”, features a resolution of 480x272px, a brightness of 700cd/m², a digital 18-bit RGB interface, a contrast ratio of 1200:1, and horizontal and vertical viewing angles of 160° each. The design is based on automotive requirements and boasts an expanded operating temperature range of -30 to +85°C and a storage temperature range of -40 to +95°C. In addition, the anti-glare surface treatment improves readability in bright surroundings.

Measuring 5.0”, the T-55923GD050J-LW-ABN is a portrait-mode display that features a resolution of 480x640px. Optical characteristics include 800cd/m² brightness and a 500:1 contrast ratio. The viewing angle amounts to 140º horizontally and 110° vertically. This module comes with a 24-bit digital RGB interface and has a wide operating temperature range of -30 to +80°C.

“Portable outdoor devices are liable to fall down and are exposed to low temperatures, heat and humidity. Even in these conditions, they should always work reliably, and our components are designed for that purpose,” says Eberhard Schill, Manager Distribution and Marketing, Kyocera Display Europe.

TFT LCD Modules: One of the most popular sizes in our line of TFTs, this true-to-life full color display has a 3.2-inch diagonal active area. The high density graphic TFT (240x320 pixels) renders your images with good detail where space is limited.

A single 40 pin, 0.5mm pitch FPC makes all the connections to the display, including the white LCD backlight. Standard ZIF mating connectors such as 609-1200-1-ND or 609-1195-1-ND from Digi-Key can easily be mounted to your PCB.

Full-color (262K) 800x480 RGB display module consists of a TFT panel, a driver IC, an FFC/FPC flexible cable, and an LED backlight. This TFT LCD display module does not include an on-board LCD controller.

The use of liquid crystal displays (LCDs) in user interface assemblies is widespread across nearly all industries, locations, and operating environments. Over the last 20 years, the cost of LCD displays has significantly dropped, allowing for this technology to be incorporated into many of the everyday devices we rely on.

The odds are high you are reading this blog post on a laptop or tablet, and it’s likely the actual screen uses LCD technology to render the image onto a low-profile pane of glass. Reach into your pocket. Yes, that smartphone likely uses LCD technology for the screen. As you enter your car, does your dashboard come alive with a complex user interface? What about the menu at your favorite local drive-thru restaurant? These are some everyday examples of the widespread use of LCD technology.

But did you know that the U.S. military is using LCD displays to improve the ability of our warfighters to interact with their equipment? In hospitals around the world, lifesaving medical devices are monitored and controlled by an LCD touchscreen interface. Maritime GPS and navigation systems provide real-time location, heading, and speed information to captains while on the high seas. It’s clear that people’s lives depend on these devices operating in a range of environments.

As the use of LCDs continues to expand, and larger screen sizes become even less expensive, one inherent flaw of LCDs remains: LCD pixels behave poorly at low temperatures. For some applications, LCD displays will not operate whatsoever at low temperatures. This is important because for mil-aero applications, outdoor consumer products, automobiles, or anywhere the temperature is below freezing, the LCD crystal’s performance will begin to deteriorate. If the LCD display exhibits poor color viewing, sluggish resolution, or even worse, permanently damaged pixels, this will limit the ability to use LCD technologies in frigid environments. To address this, there are several design measures that can be explored to minimize the impact of low temperatures on LCDs.

Most LCD displays utilize pixels known as TFT (Thin-Film-Transistor) Color Liquid Crystals, which are the backbone to the billions of LCD screens in use today. Since the individual pixels utilize a fluid-like crystal material as the ambient temperature is reduced, this fluid will become more viscous compromising performance. For many LCD displays, temperatures below 0°C represent the point where performance degrades.

Have you tried to use your smartphone while skiing or ice fishing? What about those of you living in the northern latitudes - have you accidently left your phone in your car overnight where the temperatures drop well below freezing? You may have noticed a sluggish screen response, poor contrast with certain colors, or even worse permanent damage to your screen. While this is normal, it’s certainly a nuisance. As a design engineer, the goal is to select an LCD technology that offers the best performance at the desired temperature range. If your LCD display is required to operate at temperatures below freezing, review the manufacturer’s data sheets for both the operating and storage temperature ranges. Listed below are two different off-the-shelf LCD displays, each with different temperature ratings. It should be noted that there are limited options for off-the-shelf displays with resilience to extreme low temperatures.

For many military applications, in order to comply with the various mil standards a product must be rated for -30°C operational temperature and -51°C storage temperature. The question remains: how can you operate an LCD display at -30°C if the product is only rated for -20°C operating temperature? The answer is to use a heat source to raise the display temperature to an acceptable range. If there is an adjacent motor or another device that generates heat, this alone may be enough to warm the display. If not, a dedicated low-profile heater is an excellent option to consider.

Made of an etched layer of steel and enveloped in an electrically insulating material, a flat flexible polyimide heater is an excellent option where space and power are limited. These devices behave as resistive heaters and can operate off a wide range of voltages all the way up to 120V. These heaters can also function with both AC and DC power sources. Their heat output is typically characterized by watts per unit area and must be sized to the product specifications. These heaters can also be affixed with a pressure sensitive adhesive on the rear, allowing them to be “glued” to any surface. The flying leads off the heater can be further customized to support any type of custom interconnect. A full-service manufacturing partner like Epec can help develop a custom solution for any LCD application that requires a custom low-profile heater.

With no thermal mass to dissipate the heat, polyimide heaters can reach temperatures in excess of 100°C in less than a few minutes of operation. Incorporating a heater by itself is not enough to manage the low temperature effects on an LCD display. What if the heater is improperly sized and damages the LCD display? What happens if the heater remains on too long and damages other components in your system? Just like the thermostat in your home, it’s important to incorporate a real-temp temperature sensing feedback loop to control the on/off function of the heater.

The first step is to select temperature sensors that can be affixed to the display while being small enough to fit within a restricted envelope. Thermistors, thermocouples, or RTDs are all options to consider since they represent relatively low-cost and high-reliability ways to measure the display’s surface temperature. These types of sensors also provide an electrical output that can be calibrated for the desired temperature range.

The next step is to determine the number of temperature sensors and their approximate location on the display. It’s recommended that a minimum of two temperature sensors be used to control the heater. By using multiple sensors, this provides the circuit redundancy and allows for a weighted average of the temperature measurement to mitigate non-uniform heating. Depending on the temperature sensors location, and the thermal mass of the materials involved, the control loop can be optimized to properly control the on/off function of the heater.

Another important consideration when selecting a temperature sensor is how to mount the individual sensors onto the display. Most LCD displays are designed with a sheet metal backer that serves as an ideal surface to mount the temperature sensors. There are several types of thermally conductive epoxies that provide a robust and cost-effective way to affix the delicate items onto the display. Since there are several types of epoxies to choose from, it’s important to use a compound with the appropriate working life and cure time.

For example, if you are kitting 20 LCD displays and the working life of the thermal epoxy is 8 minutes, you may find yourself struggling to complete the project before the epoxy begins to harden.

Before building any type of prototype LCD heater assembly, it’s important to carefully study the heat transfer of the system. Heat will be generated by the flexible polyimide heater and then will transfer to the LCD display and other parts of the system. Although heat will radiate, convect, and be conducted away from the heater, the primary type of heat transfer will be through conduction. This is important because if your heater is touching a large heat sink (ex. aluminum chassis), this will impact the ability of the heater to warm your LCD display as heat will be drawn toward the heat sink.

Insulating materials, air gaps, or other means can be incorporated in the design to manage the way heat travels throughout your system on the way toward an eventual “steady state” condition. During development, prototypes can be built with numerous temperature sensors to map the heat transfer, allowing for the optimal placement of temperature sensors, an adequately sized heater, and a properly controlled feedback loop.

Before freezing the design (no pun intended) on any project that requires an LCD display to operate at low temperatures, it’s critical to perform low temperature first. This type of testing usually involves a thermal chamber, a way to operate the system, and a means to measure the temperature vs time. Most thermal chambers provide an access port or other means to snake wires into the chamber without compromising performance. This way, power can be supplied to the heater and display, while data can be captured from the temperature sensors.

The first objective of the low-temperature testing is to determine the actual effects of cold exposure on the LCD display itself. Does the LCD display function at cold? Are certain colors more impacted by the cold than others? How sluggish is the screen? Does the LCD display performance improve once the system is returned to ambient conditions? These are all significant and appropriate questions and nearly impossible to answer without actual testing.

As LCD displays continue to be a critical part of our society, their use will become even more widespread. Costs will continue to decrease with larger and larger screens being launched into production every year. This means there will be more applications that require their operation in extreme environments, including the low-temperature regions of the world. By incorporating design measures to mitigate the effects of cold on LCD displays, they can be used virtually anywhere. But this doesn’t come easy. Engineers must understand the design limitations and ways to address the overarching design challenges.

A full-service manufacturing partner like Epec offers a high-value solution to be able to design, develop, and manufacture systems that push the limits of off-the-shelf hardware like LCD displays. This fact helps lower the effective program cost and decreases the time to market for any high-risk development project.

The family of SeaBrite flat panel monitors utilize a wide range of sunlight readable, wide temperature range TFT LCDs, brightness control technology for excellent viewability in various ambient light conditions, and touchscreen technologies for operator interface to fulfill the demands of the Marine industry. The rugged, anti-corrosion mechanical design provides enhanced shock and vibration resistance for optimum operability in harsh, marine conditions. SeaBrite flat panel monitors accept multi-video inputs, as well as, support other customer-specified functions. These flat panel display monitors can be customized to accommodate most computing interface, marine-environment application.

TFT LCD, acronym for Thin Film Transistor Liquid Crystal Display, is a technology developed for improve image quality and has countless consumer and industrial uses.

Specifically, within TFT monitors, liquid crystals allow faster and smoother state transitions while saving power, resulting in high image quality on the display, which appears without flickering or bright irregularities (unlike simpler LCD screens).

TFT screens can be of different sizes, ranging from small 3.5" screens to large displays, and can also be identified by their area of use or by certain special features and applications, such as multitouch.

TFT displays are always clearly visible in sunlight, making them particularly suitable for outdoor use. This type of display is also particularly light, thin and energy-efficient, as well as being relatively inexpensive in relation to the technical features offered.

Digimax has an extensive catalogue ofTFT screens from 7" to 23", LCD displays and professional monitors capable of handling a high number of pixels to enable high image quality, high resolution and a screen without glare or flicker.

TFT technology is now a consolidated reality for the choice of monitors, screens and industrial displays: following this market evolution, Digimax offers the latest generation of TFT touch screen solutions, multi touch monitors and transparent displays able to offer the right option for every need.

We offer both standard and customised TFT LCDs through strategic partnerships with leading international suppliers and brands: Ampire displays, Raystar monitors and DLC screens, as well as RockTech, RockTouch and AUO touch screens.

Together with Digimax consultancy, a specific service is also available to configure TFT kits consisting of a TFT LCD monitor and matching PC board: it is possible to customise CPU and coverlens, touch technology used and connection wiring between motherboard and display.

Digimax distribetes a wide range of professional LCD monitors and large format displays for digital signage applications manufactured by Philips: one of the world"s largest manufacturers of TFT monitors, recognized for quality products and cutting-edge solutions.

Get rich colors, detailed images, and bright graphics from an LCD with a TFT screen. Our standard Displaytech TFT screens start at 1” through 7” in diagonal size and have a variety of display resolutions to select from. Displaytech TFT displays meet the needs for products within industrial, medical, and consumer applications.

TFT displays are LCD modules with thin-film transistor technology. The TFT display technology offers full color RGB showcasing a range of colors and hues. These liquid crystal display panels are available with touchscreen capabilities, wide viewing angles, and bright luminance for high contrast.

Our TFT displays have LVDS, RGB, SPI, and MCU interfaces. All Displaytech TFT LCD modules include an LED backlight, FPC, driver ICs, and the LCD panel.

We offer resistive and capacitive touch screens for our 2.8” and larger TFT modules. Our TFT panels have a wide operating temperature range to suit a variety of environments. All Displaytech LCDs are RoHS compliant.

We also offer semi-customization to our standard TFT screens. This is a cost-optimized solution to make a standard product better suit your application’s needs compared to selecting a fully custom TFT LCD. Customizations can focus on cover glass, mounting / enclosures, and more - contact us to discuss your semi-custom TFT solution.

Ampire’s AM-19201200B1TZQW-00 WUXGA TFT display with 1000 cd/m² is very bright and its wide temperature range of -20 to + 70°C makes it suitable for outdoor use. The AM-19201200B1TZQW-T51-A can be operated within the same temperature range and features a brightness of 850 cd/m². Its built-in PCAP touch screen enables easy operation with 2 fingers. Both displays feature a wide viewing angle of v/h 170°/170° due to IPS technology, an integrated LED backlight driver and are controlled via a LVDS interface. We are happy to supply you with a fully tested kit solution with one of our TFT controller boards and all the necessary cables.

Display Logic has a complete selection of OLED for applications requiring a wide temperature range. For more information and to get a quote, please contact us today!