IP Library Granted Patent US 12,342,685
Granted Patent B2
US 12,342,685 · App. 17/846,024 · Granted Jun 24, 2025

Electronic device

Inventor: Masumi Nishimura (Tokyo, JP)
Assignee: JAPAN DISPLAY INC.
H10K59/122H10K50/844H10K59/873H10K59/8731H10K77/111H10K2102/311
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Quick Facts
Patent No.
US 12,342,685
App. No.
17/846,024
Granted
Jun 24, 2025
Kind
B2
Abstract

According to one embodiment, an electronic device includes a first bottom electrode, a second bottom electrode, a second insulating layer including a first opening portion overlapping the first bottom electrode and a second opening portion overlapping the second bottom electrode, a first organic layer disposed in the first opening portion, a second organic layer disposed in the second opening portion, a first top electrode covering the first organic layer, a second top electrode covering the second organic layer, and a sealing film covering each of the first top electrode and the second top electrode. A slit which penetrates the sealing film is formed between the first top electrode and the second top electrode.

Claims (32)

1. An electronic device comprising:

a base material;

a first insulating layer disposed on the base material;

a first bottom electrode disposed on the first insulating layer and a second bottom electrode disposed on the first insulating layer;

a second insulating layer disposed on the first insulating layer, and comprising a first opening portion overlapping the first bottom electrode and a second opening portion overlapping the second bottom electrode;

a partition disposed on the second insulating layer;

a first organic layer disposed in the first opening portion and covering the first bottom electrode;

a second organic layer disposed in the second opening portion and covering the second bottom electrode;

a first top electrode covering the first organic layer;

a second top electrode covering the second organic layer; and

a sealing film covering each of the first top electrode and the second top electrode, wherein

a slit which penetrates the sealing film is formed between the first top electrode and the second top electrode,

the sealing film comprises:

a first inorganic insulating film which covers each of the first top electrode and the second top electrode and is divided by the slit;

an organic insulating film disposed on each of the first inorganic insulating film covering the first top electrode and the first inorganic insulating film covering the second top electrode; and

a second inorganic insulating film which covers each of the organic insulating film overlapping the first top electrode and the organic insulating film overlapping the second top electrode,

the partition comprises:

a first layer formed of a metal material, and comprising a first side surface which is in contact with the first top electrode and a second side surface which is in contact with the second top electrode; and

a second layer disposed on the first layer, extending from the first side surface toward the first opening portion, and extending from the second side surface toward the second opening portion, and

the slit penetrates the second layer.

2. The electronic device of claim 1 , wherein

the first inorganic insulating film is formed of a same material as the second inorganic insulating film.

3. The electronic device of claim 1 , wherein

the second layer is an inorganic insulating layer formed of a same material as the second insulating layer.

4. The electronic device of claim 1 , wherein

the first inorganic insulating film and the second inorganic insulating film are in contact with each other on the partition.

5. The electronic device of claim 1 , wherein

the slit further penetrates the first layer and the second insulating layer.

6. The electronic device of claim 1 , wherein

the slit is formed in a stripe shape or grating shape.

7. The electronic device of claim 1 , wherein

the base material is a resinous film.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 27, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 071741/0492 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 22, 2022
From: NISHIMURA, MASUMI
To: JAPAN DISPLAY INC.
Reel/Frame 060392/0601 →
Priority Claims (1)
JP 2021-103921 · Jun 23, 2021 · national
Continuity (1)
Related Publication 20220416204A1 · Dec 29, 2022
References Cited (2)
US 20200168670A1 · Kim · 2020 [cited by examiner]
JP 2000195677A · 2000 [cited by applicant]