Display assemblies
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United States of America Patent
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Oct 6, 1998
Grant Date -
N/A
app pub date -
Oct 11, 1996
filing date -
Oct 31, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A transparent LCD back-lit display has a transparent indium-tin oxide heater layer extending across the display and a resistive metal strip heater, supported in a frame of low thermal conductivity, extending around its edge. One temperature sensor is mounted at the center of the display and another is mounted at the edge. The sensors are connected to a heater control unit, which controls power supplied to the heater layer and the edge strip heater to maintain the temperatures at the center and edge of the display equal.
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