Light display panel control
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United States of America Patent
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Jun 29, 2004
Grant Date -
N/A
app pub date -
Feb 15, 2002
filing date -
Mar 5, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The disclosure concerns a light display panel with a matrix of pixels each comprising three monochrome electroluminescent diodes of three colors. The diodes are controlled by a control circuit delivering electrical power P to each diode, said electrical power being expressed in the form P-k.Pr, wherein Pr is a reference electrical power particular to the diodes of each color and k is a coefficient selected according to the display to be presented. Over the course of time the reference electrical power is subjected to different variations depending on the colors, to compensate for the aging of the diodes.
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