Display device with optical input function

Details Display device with optical input function Display device with optical input function

2005-08-03

2009-10-13

Shalwala, Bipin (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C175S207000

Reexamination Certificate

active

07602380

ABSTRACT:
A display device includes a plurality of scanning lines, a plurality of signal lines, a plurality of pixel circuits and sensor circuits, a signal line drive circuit and scanning line drive circuit which drive the plurality of pixel circuits, and a precharge circuit and sensor control circuit which drive the sensor circuits. A filter subjects image data to an interpolation process to compensate for a gradation value of an output. In a signal processing section, the area of a light receiving area is calculated and it is determined that a light source is set in contact with a display screen.

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Song Zhaohui, et al, “Optronics Lasers”, China Academic Journal Electronic Publishing House vol. 3, No. 6, Dec. 1992, pp. 356-360.

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