Type of radial circuit used as LCD drivers

Details Type of radial circuit used as LCD drivers Type of radial circuit used as LCD drivers

2007-11-06

2011-10-18

Nguyen, Kimnhung (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

C345S087000, C345S100000

Reexamination Certificate

active

08040333

ABSTRACT:
This invention discloses a type of radial circuit for use in driving LCD monitors. The radial circuit includes an odd-even column data generator. The odd-even column data generator receives data from a modulation counter and divides the data into two groups of data having opposite levels: odd column modulation data and even column modulation data. The odd-even column data generator then sends the two sets of data to a comparator comparing the display data and modulation data of the LCD. The comparator is used to control the odd and even columns of the LCD. This utility model divides all the columns in the same row into odd and even columns. An opposite driver voltage waveform is output from between the odd and even columns of the neighboring columns. While the odd columns discharge, the even column recharges. This type of simultaneous discharge and recharge process creates just the right mutual electric charge compensation; and it results in minimizing the electric charge dissipation which saves energy.

REFERENCES:
patent: 5272471 (1993-12-01), Asada et al.
patent: 5543819 (1996-08-01), Farwell et al.
patent: 6057809 (2000-05-01), Singhal et al.
patent: 6462728 (2002-10-01), Janssen et al.
patent: 2004/0095307 (2004-05-01), Kim
patent: 2005/0162367 (2005-07-01), Kobayashi et al.

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