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US 10,120,250 B2Granted
Electro-optical device, electrical apparatus
AssigneeSeiko Epson Corporation
InventorsShotaro Izawa, Satoshi Ito
Life of this patent
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Abstract
A liquid crystal device serves as an electro-optical device and includes, on a base member of an element substrate, a first shield layer disposed between a gate electrode and a drain electrode of a TFT, and a second shield layer provided between the drain electrode and a data line serving as a signal line. A first holding capacitor is configured by part of the drain electrode, the first dielectric layer, and the second shield layer.
Claims20
An electro-optical device comprising:
- an element substrate including a pixel electrode and a thin film transistor for each of a plurality of pixels, a scan line, and a signal line;
- and
- on the element substrate,
- a drain electrode disposed between a gate electrode of the thin film transistor and the signal line,
- a first shield layer disposed between the gate electrode and the drain electrode and configured to be applied with a fixed potential,
- a first dielectric layer disposed between the drain electrode and the signal line and provided contacting part of the drain electrode,
- a second shield layer contacting the first dielectric layer, and
- a fixed potential line disposed between the second shield layer and the pixel electrode and configured to be applied with the fixed potential,
- the second shield layer being connected to the fixed potential line, and
- the drain electrode, the first dielectric layer, and the second shield layer configuring a first holding capacitor.
7 more elements
An electro-optical device comprising:
- an element substrate including a pixel electrode and a thin film transistor for each of a plurality of pixels, a scan line, and a signal line;
- and
- on the element substrate,
- a drain electrode disposed between a gate electrode of the thin film transistor and the signal line,
- a first shield layer disposed between the gate electrode and the drain electrode and configured to be applied with a fixed potential,
- a first dielectric layer disposed between the drain electrode and the signal line and provided contacting part of the drain electrode,
- a projection having insulating properties and disposed between the drain electrode and the first dielectric layer,
- a second shield layer contacting the first dielectric layer, and
- a fixed potential line disposed between the second shield layer and the pixel electrode and configured to be applied with the fixed potential,
- the second shield layer being connected to the fixed potential line at a portion of the fixed potential line superimposed on the projection in plan view of the element substrate;
- and
- the drain electrode, the first dielectric layer, and the second shield layer configuring a first holding capacitor.
9 more elements
Dependencies are inferred from the claim text.