Electro-optical device and electronic apparatus
AssigneeSeiko Epson Corporation
InventorYasuji Yamasaki
Life of this patent
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Abstract
The electro-optical device comprises a pixel electrode, a TFT including a semiconductor layer connected to the pixel electrode, and a data line and scanning line connected to the TFT. The scanning line includes a narrow part as a gate electrode facing a channel region in the semiconductor layer, and a wide part not facing the channel region. This construction permits the electro-optical device to display high quality images by preventing light from impinging the TFT.
Claims23
An electro-optical device comprising:
- a pixel electrode provided above a substrate;
- a thin film transistor comprising a channel region for supplying image signals to the pixel electrode by switching operations of the thin film transistor;
- a first wiring line for supplying the image signals to the thin film transistor;
- and
- a second wiring line for supplying scanning signals to the thin film transistor for controlling the switching operations of the thin film transistor,
- wherein the second wiring line comprising a narrow part as a gate electrode facing the channel region of the thin film transistor, and a wide part wider than the narrow part and not facing the channel region.
An electronic apparatus having a electro-optical device comprising:
- a pixel electrode provided above a substrate;
- a thin film transistor comprising a channel region for supplying image signals to the pixel electrodes by switching operations of the thin film transistor;
- a first wiring line for supplying the image signals to the thin film transistor;
- and
- a second wiring line for supplying scanning signals to the thin film transistor for controlling the switching operations of the thin film transistor,
- wherein the second wiring line comprising a narrow part as a gate electrode facing the channel region of the thin film transistor, and a wide part wider than the narrow part and not facing the channel region.
An electro-optical device comprising:
- a pixel electrode provided above a substrate;
- a thin film transistor for supplying image signals to the thin film transistor by controlling the switching operations of the thin film transistor;
- a first wiring line for supplying the image signals to the thin film transistor;
- a second wiring line for supplying scanning signals to the thin film transistor for controlling the switching operations of the thin film transistor;
- and
- an electrode part comprising a narrow part as a gate electrode facing the channel region of the thin film transistor, and a wide part wider than the narrow part and not facing the channel region,
- wherein the electrode part being electrically connected to the second wiring line.
An electronic apparatus having a electro-optical device comprising:
- a pixel electrode provided above a substrate;
- a thin film transistor for supplying image signals to the pixel electrodes by switching operations of the thin film transistor;
- a first wiring line for supplying the image signals to the thin film transistor;
- a second wiring line for supplying scanning signals to the thin film transistor for controlling the switching operations of the thin film transistor, and
- an electrode part comprising the second wiring line comprising a narrow part as a gate electrode facing the channel region of the thin film transistor, and a wide part wider than the narrow part and not facing the channel region, the electrode part being electrically connected to the second wiring line.
Dependencies are inferred from the claim text.