Flat panel display having an isolated EMI layer and integral heater and thermal sensors
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 a 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 crystals interposed between said front and rear glass plates;
a TFT array layer interposed between said front and rear glass plates; and
a metal heater layer integral to said TFT array layer.
2. A flat panel display according to claim 1 , wherein said metal heater layer is patterned onto said TFT array layer.
3. A flat panel display according to claim 1 , where said metal heater layer is comprised of a grid of intersecting horizontal and vertical lines.
4. A flat panel display according to claim 1 , further comprising:
a black mask EMI layer interposed between said front and rear glass plates and wherein said black mask EMI layer is electrically tied to zero potential and isolated from Vcom.
5. The flat panel display of claim 4 , further comprising:
an insulating dielectric layer interposed between the inside surfaces of said front and rear glass plates.
6. The flat panel display of claim 4 , wherein said metal heater layer is patterned onto said TFT array layer.
7. The flat panel display of claim 4 , wherein said metal heater layer is behind said black mask EMI layer.
8. The flat panel display of claim 4 , wherein said metal heater layer comprises a grid of intersecting horizontal and vertical lines.
9. The flat panel display of claim 4 , further comprising an insulating dielectric over-coated onto said metal heater layer.
10. The flat panel display of claim 4 , further comprising:
at least one thermal sensor integral to said TFT array layer.
11. The flat panel display of claim 10 , wherein each said thermal sensor comprises of an array of diodes.
12. The flat panel display of claim 1 , further comprising:
at least one thermal sensor integral to said TFT array layer.
13. The flat panel display of claim 12 , wherein said at least one thermal sensor is applied onto said TFT array layer.
14. The flat panel display of claim 12 , wherein each said at least one thermal sensor comprises an array of diodes.