06157360 is referenced by 18 patents and cites 41 patents.

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.

Title
System and method for driving columns of an active matrix display
Application Number
8/815486
Publication Number
6157360
Application Date
March 11, 1997
Publication Date
December 5, 2000
Inventor
David D Lee
Palo Alto
CA, US
Ho Young Song
KyongGi Do
KR
Gyudong Kim
Sunnyvale
CA, US
Deog Kyoon Jeong
Kyungki-do
KR
Agent
Fenwick & West
Assignee
Silicon Image
CA, US
IPC
G09G 3/36
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