# US 2022/0020941 A1 · Display device and method of manufacturing the same

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- Number: US 2022/0020941 A1
- Document ID: US20220020941A1
- Status: Published application
- Kind: A1
- Application number: 17/489,631
- Filed: 2021-09-29
- Published: 2022-01-20
- Earliest claimed: 2019-03-20
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Min Hee CHOI; Chung YI; Yun Kyeong IN
- Web page: https://patentgrep.com/patent/US20220020941A1

## CPC

- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- H10K 59/1213: {the pixel elements being TFTs}
- H10K 59/1216: {the pixel elements being capacitors}
- H10K 59/122: Pixel-defining structures or layers, e.g. banks
- H10K 77/111: {Flexible substrates}
- H10D 86/0212: {comprising manufacture, treatment or coating of substrates}
- H10D 86/411: {characterised by materials, geometry or structure of the substrates}
- H10D 86/441: {Interconnections, e.g. scanning lines}
- H10D 86/481: {integrated with passive devices, e.g. auxiliary capacitors}
- H10D 86/60: wherein the TFTs are in active matrices
- H10K 59/1201: {Manufacture or treatment}
- H10K 2102/311: {Flexible OLED}
- Y02E 10/549: Organic PV cells
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

A display device may include a substrate, pixels, and a crack mitigation structure. The substrate may include a main region, a sub-region, and a bending region. The bending region may be connected between the main region and the sub-region and may include a curved outline section. The pixels may be disposed on the main region. The crack mitigation structure may be disposed on the bending region. A section of the crack mitigation structure may be substantially parallel to the curved outline section.

## Claims

### Claim 1

A method for manufacturing a display device, the method comprising:
forming an insulating layer on a substrate, wherein the substrate comprises a main region and a neighboring region, wherein the neighboring region is directly connected to the main region, wherein the insulating layer comprises a first insulating section and a second insulating section, wherein the first insulating section overlaps the main region, and wherein the second insulating section overlaps the neighboring region;
forming transistors that overlap the first insulating section;
etching at least the second insulating section to form dams, wherein each of the dams comprises a portion of the second insulating section; and
cutting the neighboring region at a location between two of the dams to form a bending region, wherein the bending region comprises a curved outline section.

### Claim 2 (depends on 1)

The method of claim 1, further comprising:
forming an insulating film on the portions of the second insulating section; and
etching the insulating film at locations between the portions of the second insulating section.

### Claim 3 (depends on 2)

The method of claim 2, further comprising:
forming a pixel definition layer on remaining portions of the insulating film; and
etching the pixel definition layer at locations between the remaining portions of the insulating film.

### Claim 4 (depends on 1)

The method of claim 1,
wherein the bending region is partially exposed between remaining dams of the dams.