Computer graphics processing and selective visual display system – Display driving control circuitry – Intensity or color driving control
Reexamination Certificate
2007-04-24
2007-04-24
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Intensity or color driving control
C345S089000, C345S102000
Reexamination Certificate
active
10007831
ABSTRACT:
A system and method for achieving optimal display contrast in a mobile communication device is provided. The system includes a memory device, a processor, a display driver, and a display. A user contrast setting is stored in the memory device, wherein the user contrast setting is selected from a range of user contrast settings. The processor includes an operating system that is configured to retrieve the user contrast setting from the memory device, convert the user contrast setting into a hardware contrast setting, and save the hardware contrast setting to a memory location. The display driver retrieves the hardware contrast setting from the memory location and generates a contrast control voltage as a function of the hardware contrast setting. The display is coupled to the contrast control voltage and has a variable contrast ratio, wherein the variable contrast ratio of the display is controlled by the contrast control voltage.
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Lowles Robert J.
Reksnis Marek
Tran Phat H.
Dinh Duc
Hjerpe Richard
Jones Day
Liang Robert C.
Pathiyal Krishna K.
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