Display driver and display panel module

Details Display driver and display panel module Display driver and display panel module

2007-06-28

2010-11-23

Lao, Lun-Yi (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

C345S093000, C345S060000, C349S054000, C327S526000, C315S169400

Reexamination Certificate

active

07839397

ABSTRACT:
A display driver includes: a first memory circuit for storing a line of pixels constituting an image; a second memory circuit for storing pixels of the immediately previous line; an output terminal pair switch circuit which outputs voltages each corresponding to a value of a pixel stored in the first memory circuit to a plurality of output terminals respectively corresponding to the pixels; and an inter-terminal load determination circuit for determining, for every pair of selected columns of pixels constituting the image, whether or not a short circuit is to be established between two of the plurality of output terminals which respectively correspond to the two selected columns based on values of at least three out of four pixels belonging to the two selected columns which are stored in the first and second memory circuits. If the inter-terminal load determination circuit determines that a short circuit is to be established, the output terminal pair switch circuit temporarily establishes a short circuit between the two output terminals before the voltages corresponding to the values of the pixels are output to the two output terminals.

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European Search Report issued in European Patent Application No. EP 07111812 dated Jun. 26, 2009.

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