Thermal measuring and testing – Temperature measurement – By electrical or magnetic heat sensor
Patent
1996-12-30
2000-07-18
Bennett, G. Bradley
Thermal measuring and testing
Temperature measurement
By electrical or magnetic heat sensor
374170, 350331, 219209, G01K 700, G02F 113, G02F 115, G02F 1133, H05B 100
Patent
active
060897511
ABSTRACT:
A temperature sensor for the liquid crystal portion of a liquid crystal display assembly which includes a thin layer of transparent conductive material which is spread across the viewing area of the display. This layer of transparent conductive material can provide heat to warm up the display when a large voltage is put across it, and can also be used to measure liquid crystal temperature. It is known that the resistance of materials such as indium tin oxide (ITO) changes at a known rate with respect to temperature. By using this transparent layer of material in the stacked elements of a liquid crystal display assembly, an accurate reading of the liquid crystal temperature can be made.
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"Combination of heating and temperature measurement in a compact liquid-crystal cell"; Authored by W. Balzer and T. Tschudi, Journal of Physics E. Scientific Instruments, vol. 20, No. 5, pp. 568-571; 1987 IOP Publishing Ltd,
Conover Kurt
Cordova Randall K.
Habing Robert D.
Hurt Marlin S.
Jaramillo E. A.
Abeyta Andrew A.
Bennett G. Bradley
Honeywell Inc.
Verbitsky Gail
Yeadon Loria B.
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