Sunlight Readable Displays: Behind the LCD

Since many of our flat panel display systems 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.

Our Applications Engineers will be happy to discuss how our sunlight readable flat panel display systems can solve your low/high light application requirements.