Flexible substrate and flexible display

Patent metadata

Field	Value
Publication number	US-2018337366-A1
Application number	US-201715544019-A
Country	US
Kind code	A1
Filing date	Apr 26, 2017
Priority date	Mar 23, 2017
Publication date	Nov 22, 2018
Grant date	—

Abstract

Disclosed is a flexible substrate, comprising a first organic layer, a first inorganic layer, a second organic layer and a second inorganic layer. The first inorganic layer is located on the first organic layer. The first inorganic layer comprises first strips which are spaced. The first strip comprises a first middle part and two first side parts. The second organic layer covers the first inorganic layer. The second inorganic layer is located on one side of the second organic layer remote from the first organic layer. The second inorganic layer comprises second strips which are spaced. The second strip comprises a second middle part and two second side parts. An extension direction of the second strips is the same as an extension direction of the first strips, the second organic layer is partially interposed between two first strips and between two second strips which are adjacent.

First claim

What is claimed is:

1 . A flexible substrate, comprising:
a first organic layer; a first inorganic layer, patterned and provided on the first organic layer, wherein the first inorganic layer comprises a plurality of first strips which are spaced and the first strip comprises a first middle part and first side parts at two sides of the first middle part; a second organic layer, covering the first inorganic layer; and a second inorganic layer, patterned and located on one side of the second organic layer remote from the first organic layer, wherein the second inorganic layer comprises a plurality of second strips which are spaced and the second strip comprises a second middle part and second side parts at two sides of the second middle part; wherein an extension direction of the second strips is the same as an extension direction of the first strips, the second organic layer is partially interposed between two first strips which are adjacent and partially interposed between two second strips which are adjacent, the first middle parts and the second middle parts are staggered and the first side parts and the second side parts are overlapped.

2 . The flexible substrate according to claim 1 , wherein widths of the first side parts at the two sides of the first middle part are equal.

3 . The flexible substrate according to claim 2 , wherein a ratio of a width of the first middle part to the width of the first side part is a first value and the first value is equal to or larger than 2 and less than or equal to 3.

4 . The flexible substrate according to claim 3 , wherein a ratio of a width of the second middle part to the width of the second side part is a second value and the second value is equal to the first value.

5 . The flexible substrate according to claim 4 , wherein a thickness of the first inorganic layer is equal to a thickness of the second inorganic layer.

6 . The flexible substrate according to claim 5 , wherein a thickness of the first inorganic layer is less than a thickness of the second organic layer.

7 . The flexible substrate according to claim 1 , wherein the first strip comprises a first top surface and a first bottom surface which are oppositely arranged and first side surfaces connected between the first top surface and the first bottom surface, the first bottom surface is attached on the first organic layer, a first included angle is formed between the first side surface and the first bottom surface, the first included angle is equal to or larger than 30 degrees and equal to or less than 60 degrees.

8 . The flexible substrate according to claim 6 , wherein the first strip comprises a first top surface and a first bottom surface which are oppositely arranged and first side surfaces connected between the first top surface and the first bottom surface, the first bottom surface is attached on the first organic layer, a first included angle is formed between the first side surface and the first bottom surface, the first included angle is equal to or larger than 30 degrees and equal to or less than 60 degrees.

9 . The flexible substrate according to claim 1 , wherein the first organic layer and the second organic layer are made of a polyimide material.

10 . The flexible substrate according to claim 1 , wherein the flexible substrate further comprises a protective layer, the protective layer is located on one side of the second organic layer remote from the first organic layer and covers the second organic layer.

11 . A flexible display, comprising a flexible substrate and the flexible substrate comprising:
a first organic layer; a first inorganic layer, patterned and provided on the first organic layer, wherein the first inorganic layer comprises a plurality of first strips which are spaced and the first strip comprises a first middle part and first side parts at two sides of the first middle part; a second organic layer, covering the first inorganic layer; and a second inorganic layer, patterned and located on one side of the second organic layer remote from the first organic layer, wherein the second inorganic layer comprises a plurality of second strips which are spaced and the second strip comprises a second middle part and second side parts at two sides of the second middle part; wherein an extension direction of the second strips is the same as an extension direction of the first strips, the second organic layer is partially interposed between two first strips which are adjacent and partially interposed between two second strips which are adjacent, the first middle parts and the second middle parts are staggered and the first side parts and the second side parts are overlapped.

12 . The flexible display according to claim 11 , wherein widths of the first side parts at the two sides of the first middle part are equal.

13 . The flexible display according to claim 12 , wherein a ratio of a width of the first middle part to the width of the first side part is a first value and the first value is equal to or larger than 2 and less than or equal to 3.

14 . The flexible display according to claim 13 , wherein a ratio of a width of the second middle part to the width of the second side part is a second value and the second value is equal to the first value.

15 . The flexible display according to claim 14 , wherein a thickness of the first inorganic layer is equal to a thickness of the second inorganic layer.

16 . The flexible display according to claim 15 , wherein a thickness of the first inorganic layer is less than a thickness of the second organic layer.

17 . The flexible display according to claim 11 , wherein the first strip comprises a first top surface and a first bottom surface which are oppositely arranged and first side surfaces connected between the first top surface and the first bottom surface, the first bottom surface is attached on the first organic layer, a first included angle is formed between the first side surface and the first bottom surface, the first included angle is equal to or larger than 30 degrees and equal to or less than 60 degrees.

18 . The flexible display according to claim 16 , wherein the first strip comprises a first top surface and a first bottom surface which are oppositely arranged and first side surfaces connected between the first top surface and the first bottom surface, the first bottom surface is attached on the first organic layer, a first included angle is formed between the first side surface and the first bottom surface, the first included angle is equal to or larger than 30 degrees and equal to or less than 60 degrees.

19 . The flexible display according to claim 11 , wherein the first organic layer and the second organic layer are made of a polyimide material.

20 . The flexible display according to claim 11 , wherein the flexible substrate further comprises a protective layer, the protective layer is located on one side of the second organic layer remote from the first organic layer and covers the second organic layer.

Assignees

• Wuhan China Star Optoelectronics Technology Co Ltd

Inventors

• Meng Lin
• Chen Caiqin
• Sun Tao

Classifications

• H10W20/47

  comprising two or more dielectric layers having different properties, e.g. different dielectric constants · CPC title

• H01L51/0035

  Electricity · mapped topic

• H01L51/5256 Primary

  Electricity · mapped topic

• H01L2251/5338

  Electricity · mapped topic

• H01L51/0097

  Electricity · mapped topic