Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-04-17
2007-04-17
Nguyen, Jimmy H. (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S094000
Reexamination Certificate
active
09947714
ABSTRACT:
Disclosed is a liquid crystal display using a swing common electrode voltage and a drive method thereof. The liquid crystal display comprises a timing controller, a data driver, a gate driver outputting gate drive voltages and a drive voltage generator for outputting at least two different common electrode voltages that undergo swinging by synchronizing to a predetermined period with respect to the gate drive voltages. In the method, image signals are received from an external image signal source and supplied to the data lines. Scanning signals are supplied sequentially to the gate lines. Pixel voltage variations are checked. A common electrode voltage ending at positive is output during a gate “on” time to the LCD panel, and A common electrode voltage that repeatedly swings from negative to positive is generated during a gate “off” time if the pixel voltage has varied from negative to positive. A common electrode voltage ending at positive is generated during a gate “on” time to the LCD panel. A common electrode voltage that repeatedly swings from positive to negative is generated during a gate “off” time to the LCD panel if the pixel voltage is varied from positive to negative.
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F. Chau & Associates
Nguyen Jimmy H.
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