IP Library Granted Patent US 9,960,223
Granted Patent B2
US 9,960,223 · App. 15/492,464 · Granted May 1, 2018

Active-matrix display device

Inventors: Kohei Ebisuno (Tokyo, JP); Masafumi Matsui (Tokyo, JP); Hitoshi Tsuge (Tokyo, JP)
Assignee: JOLED INC.
H01L27/3276H01L27/3265H01L51/5206
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Quick Facts
Patent No.
US 9,960,223
App. No.
15/492,464
Granted
May 1, 2018
Kind
B2
Abstract

An active-matrix display device according to the present disclosure includes a plurality of pixels. Each of the pixels includes: a drive transistor disposed on a substrate; and an organic EL element that is caused by the drive transistor to emit light and includes an AM layer disposed above the substrate and a transparent electrode layer disposed above the AM layer. The active-matrix display device further includes: a source line that supplies data to the pixels; and a power supply line that supplies electric power to the pixels. The power supply line is shared by, among the plurality of pixels, two pixels that are adjacent to each other in a second direction that crosses a first direction in which the power supply line is extended. The source line and the AM layer are disposed not to overlap each other in a plan view of the substrate.

Claims (23)

1. An active-matrix display device comprising:

a plurality of pixels arranged in a matrix, each of the plurality of pixels including:

a drive element that is disposed on a substrate; and

a light-emitting element that is caused by the drive element to emit light, and includes a metal electrode layer disposed above the substrate and a transparent electrode layer disposed above the metal electrode layer;

a data line that is disposed on the substrate and supplies data to the plurality of pixels; and

a power supply line that is disposed on the substrate and supplies electric power to the plurality of pixels,

wherein

the power supply line is shared by, among the plurality of pixels, two pixels that are adjacent to each other in a second direction that crosses a first direction in which the power supply line is extended,

the data line and the metal electrode layer are disposed not to overlap each other in a plan view of the substrate,

each of the plurality of pixels further includes a capacitor that is disposed on the substrate and that holds a voltage corresponding to the data,

the power supply line includes:

a first power supply line that supplies a current to the light-emitting element; and

a second power supply line that supplies a voltage that initializes a voltage of the capacitor, and

the first power supply line and the second power supply line are disposed alternately every other pixel along the second direction.

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

wherein a layout of the plurality of pixels is formed by repetition of a layout of a pair of pixels along the second direction.

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

wherein the two pixels sharing the power supply line include respective circuit elements that are disposed to be symmetrical with respect to the power supply line, each of the circuit elements including the drive element.

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

wherein the power supply line is disposed to overlap the metal electrode layer in the plan view of the substrate.

5. The active-matrix display device according to claim 1 , further comprising

a partition that partitions the plurality of pixels individually,

wherein the data line is disposed below the partition.

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 Apr 20, 2017
From: EBISUNO, KOHEI; MATSUI, MASAFUMI; TSUGE, HITOSHI
To: JOLED INC.
Reel/Frame 042083/0456 →
Priority Claims (1)
JP 2016-088524 · Apr 26, 2016 · national
Continuity (1)
Related Publication 20170309696A1 · Oct 26, 2017