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US 8,009,162 B2Granted
Thin-film semiconductor device, display device including the same, and method of driving display device
AssigneeNEC Corporation
InventorKenichi Takatori
Life of this patent
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Abstract
A thin-film semiconductor device includes a temperature sensor formed of a thin-film semiconductor and sensing a temperature as current, and a current-voltage converter formed of a thin-film semiconductor and having temperature dependence in which its current-voltage characteristic is different from that of the temperature sensor. A temperature sensed by the temperature sensor is converted to a voltage by the current-voltage converter.
Claims5
A display comprising:
- a thin-film semiconductor device comprising:
- a temperature sensor formed of a thin-film semiconductor and sensing a temperature as current;
- and
- a current-voltage converter formed of a thin-film semiconductor and having temperature dependence in which its current-voltage characteristic is different from that of said temperature sensor;
- wherein a temperature sensed by said temperature sensor is converted to a voltage by said current-voltage converter;
- an image display area;
- signal voltage driving circuitry driving said display part;
- reference voltage circuitry receiving an output voltage of said current-voltage converter and determining a reference voltage given to said signal voltage driving circuitry;
- scanning electrode driving circuitry scanning the screen of said display image part;
- and
- control circuitry controlling said signal voltage driving circuitry and said scanning electrode driving circuitry.
8 more elements
Dependencies are inferred from the claim text.