IP Library › Granted Patent US 12,055,829
Granted Patent B2
US 12,055,829 · App. 18/225,762 · Granted Aug 6, 2024

Electro-optical device and electronic apparatus

Inventor: Satoshi Ito (Eniwa, JP)
Assignee: SEIKO EPSON CORPORATION
G02F1/136213G02F1/136209G02F1/136286G02F1/1368H01L27/1222H01L27/124H01L27/1255H01L29/78621H01L29/78633H01L29/78675
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Quick Facts
Patent No.
US 12,055,829
App. No.
18/225,762
Granted
Aug 6, 2024
Kind
B2
Abstract

An electro-optical device includes a substrate, a pixel electrode disposed at the substrate, and a pixel circuit portion disposed between the substrate and the pixel electrode. The pixel circuit portion includes a scanning line disposed along a first direction, a data line disposed along a second direction intersecting the first direction, a first constant potential line disposed along the scanning line, a second constant potential line disposed along the data line, and a transistor disposed corresponding to an intersection position of the scanning line and the data line and including a gate electrode electrically coupled to the scanning line, a source region electrically coupled to the data line, and a drain region electrically coupled to the pixel electrode. The pixel circuit portion also includes a coupling portion disposed corresponding to the intersection position and configured to electrically couple the first constant potential line and the second constant potential line.

Claims (56)

1. An electro-optical device comprising:

a scanning line disposed along a first direction;

a data line disposed along a second direction intersecting the first direction;

a first constant potential line disposed along the first direction;

a second constant potential line including:

a first body portion disposed along the second direction, and

a first protrusion portion protruding from the first body portion along the first direction;

a first storage capacitor including a first electrode, the first electrode including:

a second body portion, and

a second protrusion portion protruding from the second body portion along the first direction;

a second storage capacitor including a second electrode, the second electrode including:

a third body portion, and

a third protrusion portion protruding from the third body portion along a third direction opposite the first direction; and

a pixel electrode, wherein

the first constant potential line and the first protrusion portion of the second constant potential line are electrically connected through a first contact hole,

the pixel electrode and the third protrusion portion of the second electrode are electrically connected through a second contact hole,

the first contact hole is disposed in a region overlapping with the second protrusion portion of the first electrode, and

the second contact hole is disposed in a region overlapping with the third protrusion portion of the second electrode.

2. The electro-optical device according to claim 1 , wherein

the first storage capacitor is disposed between the first constant potential line and the second constant potential line.

3. The electro-optical device according to claim 1 , wherein

the first constant potential line is disposed in a first layer between the scanning line and the pixel electrode, and

the second constant potential line is disposed in a second layer between the first constant potential line and the pixel electrode.

4. The electro-optical device according to claim 1 , wherein

the first contact hole is separated from one side of the data line in plan view, and

the second contact hole is separated from another side of the data line in plan view.

5. The electro-optical device according to claim 1 , further comprising:

a metal member is disposed in the first contact hole, wherein

the metal member including a material different from a material of the first constant potential line and a material of the second constant potential line.

6. The electro-optical device according to claim 1 , further comprising:

a wiring is disposed in a layer between the first constant potential line and the pixel electrode and is electrically connected to the third protrusion portion of the second electrode through the second contact hole.

7. The electro-optical device according to claim 1 , wherein

the first electrode of the first storage capacitor is disposed in a layer different from a layer in which the first constant potential line and the second constant potential line are disposed.

8. An electro-optical device comprising:

a scanning line disposed along a first direction;

a data line disposed along a second direction intersecting the first direction;

a first light-shielding member disposed along the first direction and to which a constant potential is applied;

a second light-shielding member to which the constant potential is applied, the second light-shielding member including:

a first body portion disposed along the second direction, and

a first protrusion portion protruding from the first body portion along the first direction;

a first storage capacitor including a first electrode, the first electrode including:

a second body portion, and

a second protrusion portion protruding from the second body portion along the first direction;

a second storage capacitor including a second electrode, the second electrode including:

a third body portion, and

a third protrusion portion protruding from the third body portion along a third direction opposite the first direction; and

a pixel electrode, wherein

the first light-shielding member and the first protrusion portion of the second light-shielding member are electrically connected through a first contact hole,

the pixel electrode and the third protrusion portion of the second electrode are electrically connected through a second contact hole,

the first contact hole is disposed in a region overlapping with the second protrusion portion of the first electrode, and

the second contact hole is disposed in a region overlapping with the third protrusion portion of the second electrode.

9. The electro-optical device according to claim 8 , wherein

the first light-shielding member is disposed in a first layer between the scanning line and the pixel electrode, and

the second light-shielding member is disposed in a second layer between the first light-shielding member and the pixel electrode.

10. The electro-optical device according to claim 8 , wherein

the first electrode of the first storage capacitor is disposed in a layer different from a layer in which the first light-shielding member and the second light-shielding member are disposed.

Priority Claims (1)
JP 2019-046677 · Mar 14, 2019 · national
Continuity (3)
Division 17729283 · Apr 26, 2022
Division 16817840 · Mar 13, 2020
Related Publication 20230367158A1 · Nov 16, 2023