PIXEL CIRCUITS FOR AMOLED DISPLAYS
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United States of America Patent
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app pub date -
Sep 2, 2014
filing date -
Mar 8, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and system determine the characteristics of drive devices and load devices in selected pixels in an array of pixels in a display in which each pixel includes a drive device for supplying current to a load device. The method and system supply current to the load device via the drive device in a selected pixel, the current being a function of a current effective characteristic of at least one of the drive device and the load device; measure the current via a measurement line that is shared by adjacent pixels, and extract the value of a selected effective characteristic of one of the drive and load devices from the effect of the current on another of the drive and load devices. Current may be measured via a read transistor in each pixel.
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