Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-08-28
2010-06-15
Shankar, Vijay (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S087000, C345S092000, C345S095000, C345S204000, C345S210000
Reexamination Certificate
active
07737940
ABSTRACT:
A liquid crystal display includes a source driver, a gate driver, a plurality of pixel units, a plurality of detecting circuits, and a decision unit. Each pixel unit includes a switch transistor and a liquid crystal capacitor. When turned on by a scan signal generated by the gate driver, the switch transistor conducts a data signal voltage generated by the source driver to the liquid crystal capacitor, to adjust alignment of liquid crystal molecules. Each detecting circuit is electrically connected to one pixel unit, and includes a first transistor, a second transistor, a third transistor and a sensor unit. The first transistor conducts a constant voltage to the sensor unit when turned on, and generates a dynamic voltage when turned off. Based on the dynamic voltage, the second transistor generates a dynamic current. The third transistor conducts the dynamic current to the decision unit when turned on. The decision unit determines the position of one detecting circuit by comparing the dynamic currents output by the plurality of detecting circuits.
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IDW/AD'05 AMD 10-2 Touch Panel Function Integrated LCD using LTPS Technology.
Chang Ting-jui
Chen Yen-ting
Chiang Min-feng
Huang Yi-pai
Hung Chi-mao
AU Optronics Corp.
Shankar Vijay
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