Apparatus for driving liquid crystal display panel for small siz

Details Apparatus for driving liquid crystal display panel for small siz Apparatus for driving liquid crystal display panel for small siz

1994-01-04

1995-08-15

Weldon, Ulysses

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345100, G06E 100

Patent

active

054423724

ABSTRACT:
In an apparatus for driving a liquid crystal display panel having N scan lines, shift registers are provided to drive the scan lines, and switching circuits are interposed among the shift registers. One of the switching circuits is selected to write a start pulse signal thereinto. Thus, an image having a smaller number of scan lines than N can be displayed at a center portion of the liquid crystal display panel.

REFERENCES:
patent: 4990902 (1991-02-01), Zenda
patent: 4998099 (1991-03-01), Ishii
patent: 5170107 (1992-12-01), Kanno et al.
Patent Abstracts of Japan, vol. 17, No. 402 (P-1580), Jul. 27, 1993 and JPA 5-73023.
Patent Abstracts of Japan, vol. 14, No. 264 (P-1057), Jun. 7, 1990 and JPA 2-73394.

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