IP Library Granted Patent US 10,629,123
Granted Patent B2
US 10,629,123 · App. 16/011,773 · Granted Apr 21, 2020

Active-matrix display device

Inventor: Shigeo Homura (Tokyo, JP)
Assignee: JOLED INC.
G09G3/3233G09G3/3283H01L27/3262H01L27/3265H01L51/5206H01L51/5234G09G2300/0842G09G2310/0251G09G2310/0262H01L27/3276
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Quick Facts
Patent No.
US 10,629,123
App. No.
16/011,773
Granted
Apr 21, 2020
Kind
B2
Abstract

In an active-matrix display device, each of the plurality of pixels includes a holding capacitor that includes: a gate electrode that is included in a first wiring layer and is connected to a gate of a drive transistor which drives a light-emitting element; a first source electrode that is included in a lower wiring layer disposed lower than the first wiring layer and is connected to a source of the drive transistor; and a second source electrode that is included in an upper wiring layer disposed higher than the first wiring layer and is connected to a source of the drive transistor. At least one of the first source electrode and the second source electrode protrudes toward the data line from the facing region and overlaps the gate electrode in the facing region in the plan view of the pixel matrix.

Claims (15)

1. An active-matrix display device, comprising:

a pixel matrix that includes a plurality of pixel cells arranged in rows and columns; and

a data line that is disposed for each of the columns in the pixel matrix and is connected to each of the plurality of pixel cells in the column,

wherein each of the plurality of pixel cells includes:

a holding capacitor, including:

a gate electrode that is included in a first wiring layer and is connected to a gate of a drive transistor which drives a light-emitting element;

a first source electrode that is included in a lower wiring layer disposed lower than the first wiring layer and is connected to a source of the drive transistor; and

a second source electrode that is included in an upper wiring layer disposed higher than the first wiring layer and is connected to the source of the drive transistor,

the gate electrode has a facing region that faces, in parallel, the data line connected to the pixel cell including the gate electrode,

the first source electrode overlaps the gate electrode at least in the facing region in a plan view of the pixel matrix,

the second source electrode overlaps the gate electrode at least in the facing region in the plan view of the pixel matrix,

at least one of the first source electrode and the second source electrode protrudes toward the data line from the facing region and overlaps the gate electrode in the facing region in the plan view of the pixel matrix, and

a protruded amount that is an amount of protrusion toward the data line is greater than or equal to 15% of a distance between the data line and the gate electrode in the facing region.

2. The active-matrix display device according to claim 1 ,

wherein both of the first source electrode and the second source electrode protrude toward the data line from the facing region and overlap the gate electrode in the facing region in the plan view of the pixel matrix.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 18, 2025
From: JDI DESIGN AND DEVELOPMENT G.K.
To: MAGNOLIA BLUE CORPORATION
Reel/Frame 072039/0656 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 31, 2024
From: JOLED, INC.
To: JDI DESIGN AND DEVELOPMENT G.K.
Reel/Frame 066382/0619 →
CORRECTION BY AFFIDAVIT FILED AGAINST REEL/FRAME 063396/0671 Recorded Jun 12, 2023
From: JOLED, INC.
To: JOLED, INC.
Reel/Frame 064067/0723 →
SECURITY INTEREST Recorded Apr 20, 2023
From: JOLED, INC.
To: INCJ, LTD.
Reel/Frame 063396/0671 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 19, 2018
From: HOMURA, SHIGEO
To: JOLED INC.
Reel/Frame 046130/0879 →