Light Emitting Display Device
US-2022199708-A1 · Jun 23, 2022 · US
Display device including an electrode covering an insulator, barrier walls, and a second electrode
US12464898B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12464898-B2 |
| Application number | US-202217583664-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 25, 2022 |
| Priority date | Jan 27, 2021 |
| Publication date | Nov 4, 2025 |
| Grant date | Nov 4, 2025 |
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- Title
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- Abstract
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- Assignees and inventors
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- Key dates
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- First independent claim
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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
According to one embodiment, a display device includes a first insulating layer disposed on a base material, a first electrode disposed on the first insulating layer, a second insulating layer disposed on the first insulating layer and including an opening portion, a barrier wall disposed on the second insulating layer, an organic layer in contact with the first electrode through the opening portion and in contact with the second insulating layer between the opening portion and the barrier wall, a second electrode disposed on the organic layer, an insulator covering side surfaces of the barrier wall and edge portions of the organic layer and the second electrode, and a third electrode covering the second electrode, the barrier wall, and the insulator.
First claim
Opening claim text (preview).
What is claimed is: 1 . A display device comprising: a base material; a first insulating layer disposed on the base material; a first electrode disposed on the first insulating layer; a second insulating layer disposed on the first insulating layer and including an opening portion overlapping with the first electrode; a barrier wall disposed on the second insulating layer; an organic layer in contact with the first electrode through the opening portion and in contact with the second insulating layer between the opening portion and the barrier wall; a second electrode disposed on the organic layer; an insulator covering side surfaces of the barrier wall and edge portions of the organic layer and the second electrode; and a third electrode covering the second electrode, the barrier wall, and the insulator, wherein the insulator does not overlap with the opening portion and has a shape of a frame surrounding the organic layer and the second electrode in a plan view, the second electrode is in contact with the third electrode at a position overlapping with the opening portion, and the edge portion of the organic layer is not covered with the second electrode and is in contact with the insulator. 2 . The display device of claim 1 , wherein the barrier wall has a shape in which a width of an upper part is greater than a width of a lower part. 3 . The display device of claim 1 , wherein the organic layer includes a light-emitting layer and a functional layer, the functional layer covers an edge portion of the light-emitting layer, and the insulator covers an edge portion of the functional layer. 4 . The display device of claim 1 , wherein the organic layer includes a light-emitting layer and a functional layer, the light-emitting layer covers an edge portion of the functional layer, and the insulator covers an edge portion of the light-emitting layer. 5 . The display device of claim 1 , wherein the organic layer includes a light-emitting layer and a functional layer, the functional layer is disposed on the light-emitting layer, and the insulator covers edge portions of each of the light-emitting layer and the functional layer. 6 . The display device of claim 1 , wherein the organic layer includes a light-emitting layer and a functional layer, the light-emitting layer is disposed on the functional layer, and the insulator covers edge portions of each of the light-emitting layer and the functional layer. 7 . The display device of claim 1 , wherein the second insulating layer includes a first surface on which the barrier wall is disposed and a second surface on which the barrier wall is not disposed, the first surface is a lower surface of the second insulating later, and the second surface is an upper surface of the second insulating layer, which is higher than the first surface. 8 . A display device comprising: a base material; a first insulating layer disposed on the base material; a first electrode disposed on the first insulating layer; a second insulating layer disposed on the first insulating layer and including an opening portion overlapping with the first electrode; an organic layer in contact with the first electrode through the opening portion and disposed on a position overlapping with a pixel; a second electrode disposed on the organic layer; an insulator covering edge portions of the organic layer and the second electrode; and a third electrode covering the second electrode and the insulator, wherein the insulator does not overlap with the opening portion and has a shape of a frame surrounding the organic layer and the second electrode in a plan view, the second electrode is in contact with the third electrode at a position overlapping with the opening portion, and the edge portion of the organic layer is not covered with the second electrode and is in contact with the insulator.
Assignees
Inventors
Classifications
Encapsulations · CPC title
Multilayers, e.g. transparent multilayers · CPC title
Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title
Insulating layers formed between TFT elements and OLED elements · CPC title
- H10K59/122Primary
Pixel-defining structures or layers, e.g. banks · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US12464898B2 cover?
- According to one embodiment, a display device includes a first insulating layer disposed on a base material, a first electrode disposed on the first insulating layer, a second insulating layer disposed on the first insulating layer and including an opening portion, a barrier wall disposed on the second insulating layer, an organic layer in contact with the first electrode through the opening po…
- Who is the assignee on this patent?
- Magnolia White Corp
- What technology area does this patent fall under?
- Primary CPC classification H10K59/122. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 04 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).