Display panel and display device with a thin film encapsulation layer

Patent metadata

Field	Value
Publication number	US-11380744-B2
Application number	US-202016897624-A
Country	US
Kind code	B2
Filing date	Jun 10, 2020
Priority date	Aug 2, 2019
Publication date	Jul 5, 2022
Grant date	Jul 5, 2022

Abstract

Embodiments of the present disclosure provided a display panel and a display device. The display panel includes a plurality of pixel defining units, each of the plurality of pixel defining units has a pixel hole for arranging a sub-pixel, and a first guide groove section connecting to the pixel hole, and the first guide groove sections corresponding to two adjacent pixel defining units are connected to each other to form a first guide groove.

First claim

What is claimed is:

1. A display panel, comprising a plurality of pixel defining units, each of the plurality of pixel defining units has a pixel hole for arranging a sub-pixel, and a first guide groove section connecting to the pixel hole, and the first guide groove sections corresponding to two adjacent pixel defining units are connected to each other to form a first guide groove,
the display panel further comprising a plurality of second guide grooves, each of which is separated from the pixel hole and communicates two adjacent first guide grooves,
wherein at least two of the second guide grooves are provided in an array unit, and the at least two of the second guide grooves are mutually crossed and communicated;
the array unit is a closed region enclosed by the pixel holes of at least three adjacent pixel defining units and the first guide grooves corresponding to the pixel holes,
chamfers are formed at communication points of each second guide groove and each first guide groove, and
chamfers are formed at mutual cross and communication points of every two crossed and communicated second guide grooves.

2. The display panel according to claim 1 , wherein the first guide groove section has a depth not less than ⅕ and not greater than ⅘ of a depth of the pixel hole.

3. The display panel according to claim 1 , wherein the first guide groove section has a width not less than ⅓ and not greater than ½ of a width of the pixel hole at an upper opening.

4. The display panel according to claim 1 , wherein an angle formed between a hole wall of the pixel hole and a top surface of an upper opening of the pixel hole is not greater than 90°.

5. The display panel according to claim 4 , wherein the pixel hole has an axial section with a rectangular, inverted trapezoid, inverted triangular or arched shape.

6. The display panel according to claim 1 , wherein for either of every two second guide grooves crossed and communicated with each other, a first opening at a communication point with the first guide groove is larger than a second opening at a cross and communication point with the other second guide groove, and a cross section of the two second guide grooves perpendicular to an opening of the pixel hole gradually tapers from the first opening to the second opening.

7. The display panel according to claim 1 , wherein each second guide groove has a width not less than ⅓ of a distance between adjacent hole walls of two adjacent pixel holes, and each second guide groove has a width not greater than ⅔ of the distance between the adjacent hole walls of the two adjacent pixel holes.

8. A display device comprising the display panel according to claim 1 , and a thin film encapsulation layer arranged above the display panel.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Ni Jingkai
• Wang Xiaofen
• Zhou Xiang
• Wu Huili

Classifications

• H01L51/5237

  Electricity · mapped topic

• H01L27/3246 Primary

  Electricity · mapped topic

• H01L2251/5338

  Electricity · mapped topic

• H10K2102/311

  Flexible OLED · CPC title

• H10K50/84

  Passivation; Containers; Encapsulations · CPC title