Method and apparatus for monitoring LCD driver performance
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United States of America Patent
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-
Sep 28, 1999
Grant Date -
N/A
app pub date -
Sep 26, 1996
filing date -
Sep 26, 1996
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A method and apparatus for monitoring the performance of a liquid-crystal display driver is described. The monitoring apparatus includes an analog feedback stage comprising an array of analog switches including a single switch for each output of the display driver wherein the output of each switch is connected to a single feedback line. A control circuit selectably actuates any of the switches such that the corresponding display driver output line is connected to the feedback line. The signal at any selected display driver output line may be monitored to ensure proper functioning thereof. The performance of the display drivers and supporting circuitry may be thereby monitored.
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