lcd screen brightness brands

The High Brightness LCD Screen provides clear, readable and engaging digital signage in direct sunlight. With anti-glare technology and reliable operation up to 104°F, this digital signage display is ideal for outdoor use all year and in any weather.

By being readable in bright sunlight, the High Brightness Screen gives you the advertising edge you’ve been looking for. The weatherproof display provides the perfect focal point for outdoor locations, capturing attention and boosting brand awareness in shopping malls, train stations, stadiums and more.

... be used on the screen to maximize safety and hygiene. Plus, white-colored housing makes it easy for users to detect and remove dust or any other foreign substances.

VMD 2002 is an 8-inch TFT LCD monitor with 4 wire resistant touch screen sensor. With the high brightness display and automatically brightness control, ...

... customers with a complete digital advertising solution. The wall-mounted outdoor display combines a high-bright screen with a weatherproof body. The 1,500 NITS screen captures attention, ...

... with engaging digital signage in any weather. The high-brightness LCD screen keeps your content clear in direct sunlight, for maximum customer engagement. An IP54/NEMA 4 enclosure protects ...

Industrial monitor integrated 19 inch 1280 x 1024 1000-nit high brightness LED back light LCD panel with VGA and DVI-D video input into a 8U high rack mount monitor, ...

This 5 megapixel, high-brightness color monitor has the high-definition display necessary for breast imaging. It combines ease-of-use, such as a narrow bezel design to ...

... feature-rich TFT displays offer you the very latest solutions to meet the demands of any project. With exceptional resolution, brightness and contrast, optimum readability and performance in all environments, and wide ...

With a high-brightness/sunlight readable 1000 nit projected capacitive touchscreen, this fanless extended temperature Industrial Monitor is a great value. Requiring no calibrating this ...

The robust & digital monitor of the ArkVisionUnit family is in the screen diagonal of 7" our entry model into the digital display world. It is perfectly matched to our cameras of the ArkCam series and ...

Our outdoor high brightness screens come complete with an IP65 weatherproof housing making these digital signage displays the ideal choice for outdoor advertising.

These high bright outdoor displays are manufactured using a commercial grade LCD panel with a brightness level of 2,500 – 3,000 nits suitable for 24/7 operation and an anti reflective surface to ensure the displays visibility in direct sunlight while they’re also available as an outdoor touch screen with our PCAP touch foil technology integrated behind the toughened glass fascia offering up to 10 point multi touch functionality. Options are available with an integrated Android media player or alternatively, connect your own Media Player or PC via HDMI while our touch screen versions are also available which support touch via USB.

Our High Brightness Outdoor Interactive Screens are manufactured with an intelligent fan cooling system, allowing the display to operate at optimum standards in 24/7 applications in even challenging outdoor environments.

Our Digital Signage screens are manufactured specifically to perform in brightly lit environments, even in direct sunlight, making them the ideal choice for outdoor advertising displays. With a fully protected IP65 rated enclosure, you can be confident in this screen’s reliability and longevity.

From their outdoor suitability to high brightness display, our Outdoor Digital Signage displays have been designed for high impact use so you can make sure that your advert, brand message or information is displayed effectively. These screens are especially effective in public spaces and shopping centres where the competition for attention is high, providing an eye-catching image that stands out even in tricky weather conditions against other advertising screens.

For indoor applications, we also offer commercial grade, sun-readable High Brightness LCD Screens in sizes 32″ – 65″, ideal for use in shop windows, store displays and information points. These screens offer the ideal solution for indoor applications that require a brighter display than usually expected; such as bringing attention to product launches, special displays or important information. With Wi-Fi and interactivity compatibility, Pro Display’s High Brightness display range offers an array of options ideal for your application.

Yes, as well as our Outdoor High Brightness Displays we also offer screens designed for indoor use. These displays are specially made to work in high ambient light and even direct sunlight and are most popular for window display applications.

Yes, all of our Outdoor High Brightness Displays are designed for commercial use making them suitable for 24/7 usage. These displays are ideal for encouraging engagement outside of opening hours, offering more opportunities to promote your brand/advertisement.

Our Outdoor High Brightness Screens can be manufactured with 10 point PCAP touch, creating an interactive high brightness solution. These screens also benefit from a brightness sensor and fan cooling system, as well as an anti-glare surface coating to provide the best quality display.

Our Outdoor High Brightness Screens are available in brightness’ of 2,500-3,000 nits, offering a display that’s over twice as bright as your standard screen and guaranteed to effectively broadcast your messaging.

If you’re looking for an even brighter screen or a high brightness screen at a larger scale, take a look at our Outdoor LED screens offering superior brightness and wider viewing angles with the ability to make your message unmissable even at long distances.

Yes, all of our Outdoor High Brightness Screens are IP65 rated. This means the enclosure of the screens is fully water-resistant and dust-protected so can withstand tricky weather conditions, providing confidence in their reliability and longevity.

We manufacture in Britain and ship worldwide – if you need further information, a pricing quote, or want to discuss ideas for using our Outdoor High Brightness Displays click the link below to contact us, email us via info@prodisplay.com or call us on +44 (0)1226 361 306.

The DS752LR4 is an Ultra HD 4K 75-inch high brightness LCD featuring a 3500 nit sunlight viewable image. The DS752LR4 is designed for large-scale display applications in bright environments such as outdoor enclosures and storefront windows. With TrueColor™ Calibration, every screen is individually color calibrated to the D65 color standard for unparalleled color quality and ensures uniformity among multiple displays.

DynaScan outdoor displays offer direct sunlight viewable images with year-round performance in inclement weather. DynaScan high brightness outdoor displays are IP-rated for protection from water and dust and feature IK10 vandal resistance for security and safety. The DO Series is designed as a ready-to-use solution for standalone applications while the DK Series offers a complete, robust all-in-one double-sided kiosk solution.

Ultra high bright monitors make a huge difference to how your content is viewed whether it is indoor or out. We supply a wide range of high brightness LCD digital signage displays. All designed for 24/7 operation in areas of high ambient light. With sizes from 32″ to 85″ and brightness levels up to 7,000 cd/m², we have a screen to fit every application and budget.

LCD monitors use a backlight to illuminate the liquid crystal display to produce an image – think of it like a moving stained glass window. If the light in front of the screen is brighter than the backlight then the image on screen will look washed out or very dull. By increasing the light behind the screen the image can punch through the ambient light producing a clear and visible picture.

Professional Public Display LCD monitors typically range in brightness from 350 cd/m² up to 700 cd/m². Our range of high brightness displays start at 1,500 cd/m² – more than twice the brightness of a standard screen. The range includes screens with brightness levels up to 7,000 cd/m² – more than 20x brighter than some displays and 10x brighter than other “high bright” displays. This extra light ensures your message is clearly visible in all lighting conditions.

These screens are designed for use in direct sunlight. With sunlight comes heat. A normal LCD screen when exposed to high temperatures will fail causing dark patches to appear on screen which degrades the screen overtime. The LCD panels used in high brightness screens are designed to withstand extreme temperatures up to 110ºC without blackening.

All our displays are commercial grade and designed for continuous 24/7 operation. Whether in use as a standalone screen, part of a video wall matrix or installed in an outdoor enclosure our range of products will ensure your message is displayed clearly to your customers.

The DynaScan range of premium high brightness monitors are for use in the most demanding, and brightest environments. DynaScan only manufacture High Bright displays so everything they do goes into making the best displays on the market. With local dimming and fully calibrated colour output their screens can go head-to-head with the very best in terms of image quality – whatever the brightness level!

Available in a range of sizes from 32″ up to 85″ and in brightness levels from 2,500 nits up to 7,000 nits, the range includes standard Public Display screens as well as ultra slim bezel video wall screens, stretch ratio and double-sided options.

We use screens from many different manufacturers depending on the project and its requirements. If you are looking for NEC or Samsung screens we can provide those among other manufacturers. We have solutions for all circumstances and budgets so please contact us to discuss your project and we would be happy to help.

Tru-Vu Monitors Inc., a supplier of industrial-grade LCD monitors and touchscreens, has released a 21.5-inch waterproof sunlight readable LCD display designed to operate in direct, bright sunlight or in other high ambient light conditions, according to a press release. Features of the SRMW-21.5Z monitors include:1920 by 1080 full HD resolution and 1,000 nits of brightness, four times brighter than a standard monitor or TV.

For the video display developer LCD panels are available in many sizes and resolutions, they are also available with many choices of maximum brightness. The following considers the topic of LCD panel brightness, the choices, the methods for adjusting brightness and some brightness adjustment scenarios.

LCD panels are generally rated as to their maximum brightness level which is expressed in Nits, it is equal to Candela/sqm (cd/m2), and this will be at a particular color temperature as noted in the specification, usually 10,000 K. In terms of a practical understanding, the following is a rough guide:

Outdoor displays range from a low end of 700 nits to typically 1,000 or 1,500nits and up with 2,000~2,500nits and even up to 5,000nits seen with some models. This may include standard LCD panels, custom LCD panels as well as custom cut LCD panels.

Virtually all LCD panels have a LED backlight these days, these are powered by an LED driver board. Brightness control via the driver board will be by one of two methods:

PWM (Pulse Width Modulation): This varies the duty cycle of the backlight “on time” – it is predominant in modern LCD panel LED backlight designs to enable support for digital brightness controls.

Analog: Uses a simple variable voltage to adjust brightness, for example this might be a dial or slider type potentiometer / variable resistor. To see how to enable analog backlight adjustment visit: https://www.digitalview.com/blog/brightness-adjustment/

One of the advantages of LED for the backlight is the range of adjustment that is possible, however it is important to note that the range varies significantly from model to model. Some industrial panels can be turned to very low light levels making them suitable for use in special environments such as at night. Lower cost panels limit the range of brightness to what might be required for typical usage, whereas panels with full range dimming from full off to full on require more complex backlight drivers.

Backlight lifetime: Many LCD panels have a backlight lifetime rating of 50,000 hours (typically measured to half brightness), this can be extended by running the LED backlight at a lower brightness level. Some panels may only offer 30,000 hours as a lower cost solution while other panels may offer up to 100,000 hours for high end applications.

An LCD panel backlight may be constructed so the LED’s are mounted directly behind a light guide diffuser, or they may be mounted along one or more edges of the light guide.

Active backlight: This is a function of some LCD panel backlights to automatically adjust the backlight brightness in response to the image. For more advanced systems there is an LED array making up the LED backlight, this adjusts the brightness in areas localized to the image being shown. This can greatly enhance the brightness across the display and is being used primarily with video, for example on consumer TV sets. It is not useful to all image types, for example a spreadsheet or content like maps or data is not likely to benefit.

Local dimming: Some LCD panels with direct LED may support local dimming so the LED’s are dimmed in response to the image close to them. This will not be at the same resolution as the LCD panel itself but will help greater contrast over the display by enhancing the brightness in bright areas of the image and darkening the image in dark parts of the image.

For the LCD monitor manufacturer it is important to consider that any covering over the LCD panel will reduce the brightness. For example the protective glass over a digital signage display, or a touch screen, or a semi-silvered mirror. So if a specific brightness is required the measurement should be taken with these in place.

There are various relatively low cost brightness meters available, typically in the couple of hundred dollars range. It is difficult to comment on the accuracy of these but we have found them to be within 5% of each other, though more importantly they do appear to be quite consistent in measurement so good for measurement comparisons. For more accurate measurement there are light meters from companies such as Minolta that can be calibrated, the cost may run into several thousand dollars.

Examples of light meters costing a few hundred dollars include SpyderX by Datacolor (needs a PC), a handheld meter is the SM208 by Sanpometer (search SM208 meter). Note: Many light meters, including smartphone apps, will be meters used for photography and not give readings in nits (or candelas). LCD panel specifications are typically measured using nits.

PWM and Analog: Most Digital View LCD controllers support PWM and Analog as a method for adjusting the backlight brightness level (this is noted in the column headed “Other” on the controller board summary table: https://www.digitalview.com/controllers/lcd-controllers-home.html. Also see https://www.digitalview.com/blog/brightness-adjustment/ for a guide to using a dial or slider type variable resistor to adjust the backlight.

Ambient light sensor: The backlight is adjusted for brightness or powered off depending on ambient light conditions. This uses a light sensor attached to the LCD controller board, see https://www.digitalview.com/blog/light-sensor-app-note/ for more details.

The specifics of the backlight control are documented separately for each LCD controller model (product summary here) in the product manual available for download on the product page.

Note: There are two ways to adjust the perceived brightness of a LCD panel or LCD monitor, the backlight and the black-level. Very often, particularly in the past, the monitor brightness setting adjusted the black-level, this adjusts the LCD but not the backlight.

Color, color temperature etc: In addition to adjusting the brightness other settings may be adjusted as well. For example the color temperature or for example a switch to green monochrome for night vision.

Night-safe lighting (update) : Dual-rail backlights can also be supported. These special backlight enable normal brightness and extreme low level brightness with custom night-safe lighting. Contact us for details.

Note: We have a blog on methods for implementing an ambient light sensor with Digital View LCD controller boards to automatically adjust the backlight or system power, see: Ambient Light Sensor

Update March 2019: Most of the above remains unchanged except for the increased availability of high bright LCD panels of around the 1,000 nit to 2,500 nit range. AUO for example has a number of large size LCD panels with 1,500 nit brightness for the digital signage market. Tianma has panels under 20″ with 1,000 nit to 1,500 nit brightness for various outdoor applications.

Founded in 2006, ONation is a professional LCM manufacturer in Taiwan focused on small to medium size LCD modules. Targeting the industrial application market, ONation is constantly on the quest for making innovative and quality displays.

ONation Corporation is actively engaged in providing constant quality work to customers in Japan, Taiwan, European, and US customers. The level of quality in all our commitments is our most important competitive mean and will give us satisfied customers in the industrial, specialized, and customized LCD market. We always strive to deliver faultless, functional, user-friendly and environmental adapted products to fulfill expectations and requirements.

6.The highlight LCD screen main applicate the Advertisement machine, Touch all-in-one, Splicing screen, Charging pile, Express cabinet, Bar LCD, Window screen, Electronic photo frame, Magic mirror and a series of other products related to display requipment.

Shenzhen Risingstar is a professional highlight LCD manufacturer from China, as a superior global supplier, we can provide from 10.1" to 98" full range highlight TFT LCD module, including Semi-outdoor LCD, Ultrathin highlight LCD, Outdoor highlight splicing screen, Outdoor highlight LCD, Industrial-grade highlight and customized strip LCD, Bar LCD, Transparent LCD and display shelves, double-face LCD, highlight double-face screen and other high-end LCD panel. R-Star has more than 5 years of high-brightness backlight module technology experience, 8 years of large-scale TFT module design, research and development, production comprehensive capacity, 10 years of high-quality raw material supply chain.

The DS551LX4 combines the benefits of a high bright display with a super narrow bezel for tiled video wall applications. This model features a full HD 55-inch IPS LCD with a high brightness backlight producing a 3,000 nit image. Each screen comes individually color calibrated for exceptional color quality and uniformity among multiple displays. With an ultra slim 3.5 mm bezel-to-bezel width, multiple screens can be placed side by side to create near seamless image.

The first steps in LCD technology began in 1897, when Karl Ferdinand Braun, a physicist and inventor, built the first cathode ray tube. This tiny tube would allow the first televisions to be built, creating an industry that has progressed quickly since its inception.

With the advances in technology, besides the creation of displays with different shapes and availability, ultra high brightness LCDs displays have emerged, an ideal solution developed for outdoor, semi-outdoor and window/glass applications.

Ultra high brightness LCDs are suitable for bright outdoor environments, even under direct sunlight, and these can be used 24/7, providing high contrast and excellent colour reproduction with a clear and visible image. This display offers a good solution for applications in environments with high sunlight exposure, ensuring that not only can its contents be seen, but also noticed, thus being a great competitive advantage.

Despite their merely similar characteristics, ultra brightness LCDs and high brightness LCDs are different when it comes to the intensity of their brightness.

The lass with “micro-etching” or anti-reflective treatment almost completely eliminates reflections and is suitable for use in ultra high brightness LCDs.

The unique properties of anti-glare glass allow these annoying elements to be filtered out and reduced, enhancing the experience through a Ultra High Brightness LCD display.

It is important to invest in ultra high brightness LCDs, a solution for high ambient light incidence applications for outdoor, semi-outdoor and window-facing applications.

Ultra high brightness LCDs can be easily viewed in direct sunlight, such as window displays or outdoor cases, without the interference of glare from glass and surrounding reflections;

In this sense, investing in ultra high brightness LCDs is an added value for the projection of content since it ensures that no visitor will remain indifferent to the content that is being transmitted, facilitating and improving communication. All this will allow a great competitive advantage for the companies/brands which choose this kind of displays.

Therefore, PARTTEAM & OEMKIOSKS recommends ultra high brightness LCDs in order to improve the communication between the brand/ establishment and the visitors.

Display ResolutionUltra HD (3840 x 2160)HD format4K UHD 2160pScreen Size43 in. (diagonal)Aspect Ratio16:9Display TechnologyDirect-lit LED LCDHaze1%Display Active Area37.1" x 20.8" (941.2mm x 529.4mm)Viewing Angle (typ)178°BacklightLEDBrightness (typ)500 nitsResponse Time (typ)8 msFrame Rate60HzContrast Ratio (typ)1200:1Pixel Pitch0.245mm x 0.245mmColor Gamut72% NTSCDisplay Color>1 billion colors. Full 10 bit data pathExternal ConnectionsHDMI 2.0 x 2 (HDCP 2.2), DVI-D x 1, VGA x 1, Media PlayerModes3840x2160 @ 24/25/30/60Hz; 480p, 576p, 720p @ 50/60 Hz; 1080p @ 50/60Hz;1080i @ 50/60 HzDisplay ControlIR, RS-232, LAN, HDMI-CEC, Keypad

a line of extreme and ultra-narrow bezel LCD displays that provides a video wall solution for demanding requirements of 24x7 mission-critical applications and high ambient light environments

There are a lot of specs bandied about when it comes to digital signage and video displays – sampling rate, ultra-high definition, 4K, 84, high dynamic range, you name it. However, companies that really want to get the most bang for their digital signage buck ought to be paying more attention to nits, according tohigh-brightness display maker DynaScan Technology, Inc.

DynaScan, owned by Taiwan-based Chroma Group, has been in the digital signage solutions business since 1998. With a strong focus on the retail market and extensions into most other verticals as well, DynaScan is very focused on its wide range of high-brightness and narrow-bezel professional LCDs.

Unlike many in the video display game these days, DynaScan takes pride in actually manufacturing  (not outsourcing) its products from the ground up. “We specialize with our background of testing and measurement of the LCDs and LED displays we manufacturer,” says director of business development David Huang.

A big part of its manufacturing philosophy is offering a large selection to its dealers with an emphasis on delivering high-brightness solutions. “We choose to build this huge selection, huge portfolio of products that is high-bright, color calibrated, and is power-efficient,” Huang says.

Huang and DynaScan marketing manager Scott Pickus discuss why selection and high-brightness is so important when considering digital signage solutions.

What good is a display, digital signage or otherwise, if the target audience can’t see it? LCD manufacturer DynaScan maintains that high-brightness is the key to reliable visibility. “Think about it,” says Scott Pickus, DynaScan marketing manager. “Customers are looking to replace posters with something dynamic, something digital. Historically, screens haven’t been bright enough to be seen.”

Any integrator who has deployed video solutions outdoors, particularly in climates in which the sun shines brightly for long periods of time, can tell you, the sun is a formidable opponent to video displays. It take a high-brightness solution to overcome the sun.

“Our competitors aren’t achieving the brightness level that you need [to] fight the direct sunlight, fight the infrared that’s coming in through the window,” says DynaScan’s Scott Pickus.

“Our competitors aren’t achieving the brightness level that you need to stick a screen in the window and fight against the reflection on the glass, fight the direct sunlight, fight the infrared that’s coming in through the window,” says Pickus.

He’s referring to DynaScan’s product selection with nit ranges from 3,000 to 7,000 in its range of LCD solutions from 32 to 84 inches. “Now, in most cases, you probably don’t need the 7,000 nits,” acknowledges Huang. So why does DynaScan produce LCD display solutions with such a high nit rating? It’s simple. There are end users that deal with bright sunlight that demand it, he says.

Pickus maintains that competing LCD solutions don’t achieve the brightness level needed to put a screen in the window . “You need to have the 3000 nits plus to face direct sunlight and still be able to achieve a visible screen to the viewer.”

DynaScan ought to know. Its customer roster includes many well-known retail brands. As such, “We calibrate every single screen off the factory floor to ensure that we are reproducing a natural color,” Pickus says.

Huang describes a dirty little secret of most manufacturers of so-called high-brightness LCD displays. “They just jack up the power. Drive the backlight. Use a higher power LEDs. More power comes out, but it’s very power inefficient. It also generates a lot of heat.”

DynaScan, on the other hand, “will select the right LEDs, the best LEDs, and match them with the right liquid crystal panels,” Huang says.  “Also, we have our proprietary IC drivers and our own local dimming methods, so that we can really get that brightness out and then have less power. It depends on what models we compare to, but we could have 30 percent more brightness and 30 percent less power than a competitor’s product on the market.”

DynaScan’s catalog of high-brightness displays includes features aimed at helping end users manage their digital display network. “A lot of our monitors now include an on-board player, so it’s an all-in-one solution,” Pickus says. “It’s just a matter of plugging in an SD card or USB media device.”

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.

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.

Sunlight viewability of a display depends on the differences between "lumination" and "illumination" of the display. The lumination of the display is its brightness. A display"s brightness, typically referred to as a Nit (Candela per meter/2) is the amount of light energy coming out of the display. Illumination is the amount of ambient light shining onto a display. The readability of a display is dependant on the amount of light that is being reflected off of the display.

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.

Optical Bonding from i-Tech is a solid, transparent bond which optically couples the front cover glass or touch screen directly to the face of the display. This internal bond eliminates reflection from the two internal layers. The outer surface of the window is treated with anti-reflecting coatings which matches the front surface of the glass with the index of refraction of air. This combination reduces the total reflection of the display and front cover glass to less than 2% of the ambient light. A reduction of reflection of this level, all but eliminates reflective loss in most ambient lighting conditions. With reductions of this level, displays with 300-500 nits of brightness will be viewable in daylight or indirect lighting conditions. At 500-800 nits brightness, most displays will be completely sunlight viewable.

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.

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.

With lighter condition (Outdoor/Sun-light) the brightness will increase; in the opposite condition, the brightness will be decreased to fit darker environment.

Light sensor detect the change of illumination outside, then it send the signal to MCU via I�2C interface. MCU will ask inverter to switch the brightness if the outside illumination was change over the default. MCU will transmit PWM signal to the inverter, amd the inverter will change the brightness of panel.

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.

By utilising TouchScreen Solutions�s traditional lamination expertise, touchscreens are designed to provide the highest levels of light transmission, excellent readability and unsurpassed protection against a wide range of physical threats. The touchsacreens are accurate, highly dependable and have a rapid response time

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.

The driver software allows the touchscreen to interface with the host computer�s operating system by emulating the behaviour of a computer �mouse� and translates taps on the touchscreen surface into mouse clicks.

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.

The touchscreen comprises a laminated glass sensor, which encompasses the sensing medium, and the control card which connects to the communications port of the computer.

Recently there many end customer was mislead believing high brightness (over 2000nits, even up to 5000nits) is the better solution. But there are few concerns that the so called extreme high brightness (3000nits to 5000nits) panel manufacturer don"t tell you:

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.