Toshiba Matsushita Display Technology Co., Ltd. (TMD) has succeeded in developing a new liquid crystal display (LCD) panel to accommodate an increased range of ambient light intensities
The display is usable both in bright outdoor and in dark indoor environments. It is designed with the optimum layout of photosensors and enhanced signal processing functions achieved through the use of low-temperature poly-silicon (LTPS) technology, which integrates circuitry directly onto the glass substrate, to allow input on the LCD screen by two methods: by directly touching an icon or button on the LCD screen with a finger, or by directly writing onto the LCD screen with an optic-pen.
The newly developed Input Display is designed to accommodate a wider range of operating environment illumination intensities by having the ability to switch between the finger shadow recognition mode (recognizing shadows from the natural light) and the finger reflection recognition mode (recognizing reflections from the built-in backlight) with the aid of its quick-response driving circuits on the glass substrate, the improved sensitivity of its photosensors, and its enhanced signal processing functions. Consequently, the Input Display has become potentially more practical, since it can be used in dark indoor to bright outdoor operating environments.
The newly developed product will be exhibited at TMD?s booth at FPD International (Display 2007), an international exhibition and forum on flat panel displays, held at Tokyo Big Sight, Tokyo, Japan from April 11 to April 13, 2007.
Screen size: (Diagonal) 7.1 cm (2.8-inch)
Number of pixels: 400 (H)?RGB?240 (V)
Display: Transmissive TFT LCD with 65K colors
Ambient light intensity (for the input function): 0 - 100,000 Lx