Twin capacitor pixel driver circuit for micro displays
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Oct 11, 2001
app pub date -
Feb 16, 2001
filing date -
Feb 18, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present invention is directed to a circuit and method of reducing unwanted coupled noise in an OLED video display device. Input analog data are magnified to a range of about +3.3 V (for minimum pixel current) to about +0.8 V (for maximum pixel current). The magnified input analog data are then fed to the data line (230). A pair of capacitors (200, 210) bring the data back to the original range of about 0 V to about 0.7 V. The attenuated data are fed by a pixel driver (130) to the pixel (100). The pair of capacitors functions as a voltage divider, and as a result, the coupled noise constitutes a smaller percentage of the input data, and the display image is cleaner.
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