Automatic control electroluminescent backlight panel
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United States of America Patent
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-
May 5, 1998
Issued Date -
N/A
app pub date -
May 22, 1995
filing date -
Oct 18, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An electroluminescent backlight panel for a video display system is automatically controlled by the varying ambient light levels. A light detector receives the ambient light level and sends a corresponding electrical signal to a microcontroller. The microcontroller controls the driving of the eletroluminescent backlight power supply according to varying ambient light levels until an optimum backlight output is reached. The automatic electroluminescent backlight control system is combined with an efficient power supply unit in order to further reduce battery energy consumption.
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Family
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