MINIMIZING DARK CURRENT IN OLED DISPLAY USING MODIFIED GAMMA NETWORK
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United States of America Patent
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N/A
Issued Date -
Sep 25, 2008
app pub date -
Feb 19, 2008
filing date -
Mar 20, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The current drivers of an emissive display device such as an OLED display are shut off to have minimum drain current when sub-pixel current is measured, in order to minimize dark current during sub-pixel current measurement. The current drivers in the sub-pixels not under test are biased in such a manner as to reduce their leakage current to a minimum. Therfore, the signal to noise ratio between the OLED sub-pixel current and the panel dark current can be maximized.
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