System and method for driving columns of an active matrix displa

Details System and method for driving columns of an active matrix displa System and method for driving columns of an active matrix displa

1997-03-11

2000-12-05

Chow, Dennis-Doon

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 87, 345211, G09G 336

Patent

active

061573604

ABSTRACT:
Described is a system and method for driving columns of an active matrix display using a resistor-string digital-to-analog converter (DAC). The description includes an auto-stop buffer circuit that drives an analog data voltage in two steps--the first step being active buffering by a "dead-zone amplifier" before the output reaches a certain level and the second step being acting as a passive conduit after the output reaches the certain level. The dead-zone amplifier inherently turns itself off when the analog voltage reaches the certain level. Also described are various column driver architectures in which buffers are placed in various ways in a column driver in between the resistor-string DAC and the column decoders in order to minimize the number of required buffers.

REFERENCES:
patent: 3699464 (1972-10-01), Zobel
patent: 4194166 (1980-03-01), Sakai et al.
patent: 4340904 (1982-07-01), Wingrove, Jr.
patent: 4462021 (1984-07-01), Watanabe et al.
patent: 4511881 (1985-04-01), Adam
patent: 4736137 (1988-04-01), Ohwada et al.
patent: 4748444 (1988-05-01), Arai
patent: 4772100 (1988-09-01), Suenaga
patent: 4838654 (1989-06-01), Hamaguchi et al.
patent: 4868459 (1989-09-01), Dennerlein et al.
patent: 4897656 (1990-01-01), van de Plassche et al.
patent: 4918562 (1990-04-01), Pulizzi et al.
patent: 5051739 (1991-09-01), Hayashida et al.
patent: 5061920 (1991-10-01), Nelson
patent: 5243333 (1993-09-01), Shiba et al.
patent: 5250931 (1993-10-01), Misawa et al.
patent: 5250937 (1993-10-01), Kikuo et al.
patent: 5355038 (1994-10-01), Hui
patent: 5426447 (1995-06-01), Lee
patent: 5436745 (1995-07-01), Voisin et al.
patent: 5455534 (1995-10-01), Motegi et al.
patent: 5469164 (1995-11-01), Kemp
patent: 5510807 (1996-04-01), Lee et al.
patent: 5526014 (1996-06-01), Shiba et al.
patent: 5546055 (1996-08-01), Klughart
patent: 5546102 (1996-08-01), Scheffer et al.
patent: 5572211 (1996-11-01), Erhart et al.
patent: 5574475 (1996-11-01), Callahan, Jr. et al.
patent: 5604511 (1997-02-01), Ohi
patent: 5623277 (1997-04-01), Lippmann et al.
patent: 5650801 (1997-07-01), Higashi
patent: 5675352 (1997-10-01), Rich et al.
patent: 5693237 (1997-12-01), Bodensohn
patent: 5708434 (1998-01-01), Hasegawa
patent: 5854627 (1998-12-01), Kurihara et al.
Fluxman, S. M. "Integrated Active Matrix Liquid Crystal Displays"; The GEC Journal of Research; vol. 11, No. 1; pp. 2-11, 1993.
Okada, H. et al.; "23.1: An 8-bit Digital Data Driver for AMLCDs", SID 94 Digest; 1994; pp. 347-350.

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