Display panel and display device
US-2019041687-A1 · Feb 7, 2019 · US
Display substrate, manufacturing method thereof, display panel, and display device
US10718970B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10718970-B2 |
| Application number | US-201816096123-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 9, 2018 |
| Priority date | Jun 7, 2017 |
| Publication date | Jul 21, 2020 |
| Grant date | Jul 21, 2020 |
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- Title
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Abstract
Official abstract text for this publication.
A display substrate, a manufacturing method thereof, a display panel, and a display device are disclosed. The display substrate includes a display region and a non-display region located around the display region, the display substrate includes: a base substrate and a black matrix located in the non-display region on the base substrate; at least one concave portion is located in the black matrix, and the at least one concave portion is filled with a non-transparent insulating material.
First claim
Opening claim text (preview).
What is claimed is: 1. A manufacturing method of a display substrate, wherein the display substrate comprises a display area and a non-display area located around the display area, the manufacturing method comprises: providing a base substrate; forming a black matrix located in the non-display area on the base substrate; forming at least one concave portion in the black matrix located in the non-display area; and filling an insulating material in the at least one concave portion, wherein a color of the insulating material is capable of becoming non-transparent, and the insulating material is a photoresist material doped with a thermosensitive color changing material; wherein filling the insulating material in the at least one concave portion comprises: doping 20% to 30% of the thermosensitive color changing material into the photoresist material by a physical doping method, wherein the thermosensitive color changing material comprises basic copper carbonate; and filling the photoresist material doped with the thermosensitive color changing material in the at least one concave portion by a patterning process. 2. The method according to claim 1 , wherein each of the at least one concave portion is an annular slot surrounding the display area. 3. The method according to claim 1 , wherein filling the insulating material in the at least one concave portion is performed such that the non-transparent insulating material is protruded from a surface of the black matrix away from the base substrate in a direction perpendicular to the base substrate. 4. The method according to claim 1 , wherein a resistivity of the photoresist material is different from a resistivity of the black matrix by more than 5 orders of magnitude. 5. The method according to claim 1 , further comprising, after filling the insulating material in the at least one concave portion, heating the photoresist material doped with the thermosensitive color changing material to make the thermosensitive color changing material become non-transparent.
Assignees
Inventors
Classifications
Thermal properties · CPC title
with constructional differences between the display region and the peripheral region · CPC title
Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element · CPC title
- G02F1/133512Primary
Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence) · CPC title
Colour filters · CPC title
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Frequently asked questions
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- What does patent US10718970B2 cover?
- A display substrate, a manufacturing method thereof, a display panel, and a display device are disclosed. The display substrate includes a display region and a non-display region located around the display region, the display substrate includes: a base substrate and a black matrix located in the non-display region on the base substrate; at least one concave portion is located in the black matri…
- Who is the assignee on this patent?
- Beijing Boe Optoelectronics Tech Co Ltd, Boe Technology Group Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G02F1/133512. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jul 21 2020 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).