Active matrix display

Details Active matrix display Active matrix display

2003-09-05

2010-10-26

Mengistu, Amare (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S182000

Reexamination Certificate

active

07821482

ABSTRACT:
An active matrix display has a column driver for providing signals to the pixels for driving the display elements, the column driver comprising digital to analogue converter circuitry providing a first number of display element drive levels. Within each pixel, the first number of display element drive levels is converted into a second, greater number, of pixel grey levels. This combines multi-level digital to analogue conversion with in-pixel level generation and enables the complexity of the DACs to be reduced so that they can be integrated onto the display substrate, for example using low temperature polysilicon processing.

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Patent Abstracts of Japan vol. 2000, No. 15, Apr. 6, 2000.

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