Behind the LCD
Since many of our flat panel display systems and LCD computers are used in uncontrolled lighting environments, we add a number of passive enhancements to maximize the readability of the touchscreen control interface. The touchscreen itself incorporates an anti-glare coating on its face, as well as an anti-reflective coating on the back and front of the LCD. The LCD also has a transflective backlight enhancement film. These coatings match the index of refraction to reduce light reflecting back at the viewer which increases the contrast ratio and enhances overall readability in bright lighting conditions. (See figure below)
A normal LCD will turn black when exposed to sunlight and UV radiation. Design innovations allow the LCD to operate in direct sunlight. Through the use of these special coatings, films, and filters, the unit obtains sunlight readability without additional backlights. The end result is 1000+ nit equivalent viewing without the additional power draw and heat generation of more backlights. Consequently, our flat panel display systems have longer life, better processor performance, and wider operating temperature range.
Then we integrate our enhanced backlight technology increasing the overall luminace performance of the LCD’s light source. AbraxSys uses both LED and CCFL backlighting to achieve brightness. LED backlighting creates an amazingly bright LCD display as does CCFL but with low power consumption and without increased heat usually associated with higher wattage CCFL backlights. Standard color LCDs are often unable to provide sufficient luminance for viewing under bright, outdoor environments; the result is poor image quality. AbraxSys’ high brightness LCD monitors & computers deliver a radically higher level of brightness, resulting in unparalleled picture sharpness. Our high-performance products are ideal for use under any high ambient light condition, and will give you the intensity and brilliance your application requires.
Then we add our unique Optical Bonding procedure:
Improved contrast. Faster perception. Higher performance.
Increase TFT AMLCD readability-at-a glance capability by specifying an optically bonded TFT display from AbraxSys. Combine LED backlight enhancement, optical coatings, or touchscreens to meet your human interface requirements. AbraxSys’ optical bonding facility provides proven quality systems, extensive in-house optical test verification capabilities, a certified clean room and other environmental controls.
• Improves contrast by eliminating mismatched reflective layers
• Improves readability without increasing backlight wattage
• Strengthens the overall integrity of the LCD
• Eliminates the “Greenhouse” effect and going isotropic
• Optical coatings reduce specular and diffuse reflections
• Less power required for battery powered devices while attaining
• Certified clean room and environmental controls
• Fast, responsive manufacturing in U.S.A.
Standard LCD displays are fine for most indoor applications, but they are challenged in outdoor, rugged or environmentally extreme applications. For these applications, commercial displays are all but useless. The choice are either make the display washout less, or make the display brighter; and in some cases, both options. The OEM display manufacturers are not focused on these extreme markets and applications. This is where AbraxSys helps the display customer. AbraxSys’ line of high performance optically bonded displays are ideal for outdoor or rudded environments where top performance is required.
The high brightness solution is to use LED light bar in replacement of CCFL as the backlight source, and coupled with optic films, advanced reflection patterns design on light guide bottom, and special radiation technology to achieve high brightness and low power backlight source. Brightness is important because it affects readability. The high brightness solution increases day-time and night-time visibility and offers a good choice of sunlight readable solution. Related applications covers from ATM, the in-vehicle satellite television, the telephone booth, and the outdoor displays.
In order to satisfy the application market for high brightness displays, Advantech develops our in-house high brightness technology positively, which is guaranteed to meet your application needs. A standard LCD monitor is generally 300 ~ 500nits. Advantech high brightness solution at the moment can help enhance the LCD brightness up to 2,000nits and meanwhile increase the color saturation and the contrast. Moreover, our high brightness solution requires low power consumption, resulting in displays that run cooler with minimal stress but maximum reliability.
Brightness up to 2,200 nits
Enhanced sunlight readability
High uniformity > 90%.
Increased contrast ratio
Wide dimming 0%~100%
Low power consumption (ex. For 15” LCD, 1,700 nits <30W)
Suitable for operation environment from -30℃ to 80℃
Green process and material
Long backlight half-life, some well over 100,000 hrs
Our Applications Engineers will be happy to discuss how our sunlight readable flat panel display systems can solve your low/high light application requirements. Contact us for further information.