Flat panel display having integral metal heater optically hidden behind an EMI shield
View Patent ↗A flat panel display having a black mask EMI layer isolated from Vcom and tied to zero potential. The flat panel display has an integral metal heater layer and thermal sensor that are in close proximity to the liquid crystals to provide efficient heating and temperature sensing.
1. A flat panel display comprising:
a front glass plate;
a rear glass plate;
a layer of liquid crystal interposed between the front and rear glass plates;
a TFT array interposed between said front and rear glass plates;
at least one thermal sensor, wherein said at least one thermal sensor provides a 2.5 volt to 5.0 volt change in bias potential as the liquid crystal temperature changes from −60 degrees Celsius to 100 degrees Celsius, and
an EMI layer interposed between said front and rear glass plates, wherein said EMI layer is adapted to electronically shield said thermal sensor.
2. The flat panel display according to claim 1 , wherein the at least one thermal sensor is intimate contact with said liquid crystal.
3. The flat panel display according to claim 1 wherein the at least one thermal sensor is a diode array.
4. The flat panel display according to claim 1 , wherein the at least one thermal sensor is built into the TFT array.
5. The flat panel display according to claim 1 , wherein the layer adapted to shield EMI is an ITO layer.