US 12,055,829 B2Granted

Electro-optical device and electronic apparatus

AssigneeSeiko Epson Corporation

InventorSatoshi Ito

Life of this patent

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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.

Claims10

Dependent claims

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.

15 more elements

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.

15 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/225,762Filed 25 Jul 2023 · division
Priority: JP 2019-04667714 Mar 2019
Published: US 2023/0367158 A116 Nov 2023
Granted: 6 Aug 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

G02F 1/136213
Active matrix addressed cells: storage capacitors associated with the pixel electrode
G02F 1/136209
Active matrix addressed cells: light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally…
G02F 1/136286
Active matrix addressed cells: wiring, e.g. gate line, drain line
G02F 1/1368
Active matrix addressed cells: in which the switching element is a three-electrode device

Family

Application16/817,840Parent of this division · filed 13 Mar 2020
Application17/729,283Parent of this division · filed 26 Apr 2022
US 11,347,121 B2Parent of this division · filed 31 May 2022
US 2023/0367158 A1Pre-grant publication · published 16 Nov 2023
US 11,754,895 B2Parent of this division
US 2020/0292892 A1Published application
US 2022/0252950 A1Published application
US 12,055,829 B2This patent

From the US filing history. Foreign family members aren’t listed.