Au Optronics Corporation

Wen-Jen Chiang

Chrong-Jung Lin

Ya-Chin King

Chih-Wei Chao

Chia-Tien Peng

An-Thung Cho

Chien-Sen Weng

Feng-Yuan Gan

Kun-Chih Lin

Chih-Yang Chen

An optical reflective touch panel and pixels and a system thereof are provided. Each pixel of the optical reflective touch panel includes a display circuit and a sensing circuit. The display circuit controls the display of the pixel. The sensing circuit is coupled to the display circuit for sensing a sensitization state of the pixel during a turned-on period and a turned-off period of a backlight module and outputting a digital signal to notify an optical reflective touch panel system that whether the pixel is touched or not.

Optical reflected touch panel and pixels and system thereof

A photo detector has a sensing TFT (thin film transistor) and a photodiode. The sensing TFT has a gate and a base. The photodiode has an intrinsic semiconductor region electrically connected to the gate and the base of the sensing TFT. The sensing TFT and the photodiode both have a structure comprising low temperature poly-silicon. A display panel contains the photo detector is also disclosed.

Photo detector and a display panel having the same

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Hsinchu, Taiwan

Wen-Jen Chiang