IP Library Granted Patent US 10,541,378
Granted Patent B2
US 10,541,378 · App. 15/951,305 · Granted Jan 21, 2020

Display device

Inventor: Norihisa Maeda (Tokyo, JP)
Assignee: Japan Display Inc.
H01L51/5056H01L27/3246H01L27/3276H01L51/0002H01L51/5012H01L51/5072H01L51/5203H01L27/3211
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Quick Facts
Patent No.
US 10,541,378
App. No.
15/951,305
Granted
Jan 21, 2020
Kind
B2
Abstract

A display device includes a first electrode, a second electrode adjacent to the first electrode, a barrier wall between the first electrode and the second electrode; a wiring arranged above the barrier wall, and arranged between the first electrode and the second electrode, an organic layer covering the first electrode, the second electrode, the barrier wall and the wiring, and a third electrode covering the organic layer, wherein a width of the wiring is narrower than a length between the first electrode and the second electrode, and a resistance value between the wiring and the third electrode is higher than a resistance value between the first electrode and the third electrode.

Claims (21)

1. A display device comprising:

a first electrode layer including a plurality of first electrodes arranged in a first direction and a second direction intersecting the first direction;

a second electrode layer;

an organic layer including a plurality of light emitting layers;

a wiring layer including a plurality of wirings extending in the first direction and the second direction; and

a barrier wall covering edges of the plurality of first electrodes;

wherein

the plurality of wirings is in contact with a top of the barrier wall,

each of the plurality of light emitting layers is between one of the plurality of first electrodes and the second electrode layer,

the organic layer is between each of the plurality of wirings and the second electrode layer,

one of the plurality of wirings is between two adjacent first electrodes of the plurality of first electrodes in a planar view,

another one of the plurality of wirings is between another two adjacent first electrodes of the plurality of first electrodes in the planar view,

the one of the plurality of wirings, the another one of the plurality of wirings, the one of the plurality of first electrodes, and the second electrode layer are configured so that a first voltage to be applied between the one of the plurality of wirings and the second electrode layer and a second voltage to be applied between the another one of the plurality of wirings and the second electrode layer are both higher than a third voltage to be applied between the one of the plurality of first electrodes and the second electrode layer,

the one of the plurality of wirings and the another one of the plurality of wirings are separated from each other, and

the one of the plurality of wirings and the another one of the plurality of wirings are connected to a selection circuit configured to apply the first voltage and the second voltage at different periods from each other.

2. The display device according to claim 1 , wherein the organic layer and the second electrode are continuously spread respectively.

3. The display device according to claim 1 , wherein the organic layer includes an electron transport layer and a hole transport layer.

4. The display device according to claim 1 , wherein

the organic layer between the one of the plurality of wirings and the second electrode is deteriorated.

5. The display device according to claim 1 , wherein

a resistance value between the one of the plurality of wirings and the second electrode is higher than a resistance value between the one of the plurality of first electrodes and the second electrode.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 12, 2018
From: MAEDA, NORIHISA
To: JAPAN DISPLAY INC.
Reel/Frame 045515/0888 →
Priority Claims (1)
JP 2017-095269 · May 12, 2017 · national
Continuity (1)
Related Publication 20180331315A1 · Nov 15, 2018
Cited By (1)
US 12,484,382