Display apparatus having reduced defects

Patent metadata

Field	Value
Publication number	US-10134827-B2
Application number	US-201715617895-A
Country	US
Kind code	B2
Filing date	Jun 8, 2017
Priority date	Aug 18, 2016
Publication date	Nov 20, 2018
Grant date	Nov 20, 2018

Abstract

Provided is a display apparatus capable of reducing generation of defects during manufacturing of the display apparatus or while in use after being manufactured. The display apparatus includes a substrate including a bending area between a first area and a second area, the substrate being bent in the bending area about a bending axis; an inorganic insulating layer over the substrate and including a first feature that is either a first opening or a first groove, the first feature positioned to correspond to the bending area; and an organic material layer at least partially filling the first feature, and including a second feature that is a second opening or a second groove, the second feature extending along an edge of the substrate.

First claim

What is claimed is:

1. A display apparatus comprising:
a substrate comprising a bending area between a first area and a second area, the substrate being bent in the bending area about a bending axis;
an inorganic insulating layer over the substrate and comprising a first feature that is a first opening or a first groove, the first feature positioned to correspond to the bending area; and
an organic material layer at least partially filling the first feature, and comprising a second feature that is a second opening or a second groove, the second feature extending along an edge of the substrate to cross the bending axis.

2. The display apparatus of claim 1 , wherein at least one of the first opening and the first groove overlaps the bending area.

3. The display apparatus of claim 2 , wherein an area of the first opening or the first groove is greater than an area of the bending area.

4. The display apparatus of claim 3 , wherein a length of the second opening or the second groove is greater than a width of the bending area in a direction from the first area to the second area.

5. The display apparatus of claim 1 , further comprising a first conductive layer over the organic material layer, the first conductive layer extending from the first area to the second area across the bending area.

6. The display apparatus of claim 5 , wherein a width of one of the first opening and the first groove is greater than a length of one of the second opening and the second groove.

7. The display apparatus of claim 6 , further comprising an additional organic material layer covering the first conductive layer and the organic material layer, wherein the additional organic material layer comprises a third feature that is a third opening or a third groove, the third feature extending along the edge of the substrate so as to correspond to the second opening or the second groove.

8. The display apparatus of claim 7 , wherein a length of one of the second opening and the second groove is greater than a length of one of the third opening and the third groove.

9. The display apparatus of claim 7 , wherein the additional organic material layer covers a side of the second opening or the second groove.

10. The display apparatus of claim 9 , further comprising a conductive remaining layer over at least a part of a side of the second opening or the second groove, wherein the additional organic material layer covers the conductive remaining layer.

11. The display apparatus of claim 10 , wherein the conductive remaining layer comprises a same material as the first conductive layer.

12. The display apparatus of claim 5 , further comprising a second conductive layer in the first area or the second area so as to be located on a layer different from a layer on which the first conductive layer is located, the second conductive layer being electrically connected to the first conductive layer.

13. The display apparatus of claim 12 , wherein an elongation rate of the first conductive layer is greater than an elongation rate of the second conductive layer.

14. The display apparatus of claim 1 , wherein the organic material layer comprises an additional opening or an additional groove extending along an edge of the substrate to be adjacent to the second opening or the second groove.

15. The display apparatus of claim 14 , wherein a length of the additional opening or the additional groove is less than a length of the second opening or the second groove, and the additional opening or the additional groove crosses a virtual line extending parallel with the bending axis and crossing a center of the bending area.

16. The display apparatus of claim 1 , wherein the second opening or the second groove has a first width at a first portion proximate to a center of the bending area, and a second width remote from the first portion, the first width being greater than the second width.

17. The display apparatus of claim 1 , wherein the organic material layer further comprises an auxiliary opening or an auxiliary groove connected to the second opening or the second groove and extending in a direction crossing a direction in which the second opening or the second groove extends.

18. The display apparatus of claim 1 , further comprising a bending protection layer filling the second opening or the second groove.

19. The display apparatus of claim 18 , wherein the bending protection layer covers the bending area.

20. A display apparatus comprising:
a substrate comprising a bending area between a first area and a second area, the substrate being bent in the bending area about a bending axis;
a first conductive layer extending from the first area to the second area across the bending area; and
an insulating layer between the substrate and the first conductive layer and comprising an opening or a groove, wherein the opening or groove extends in a direction crossing the bending axis and corresponds to a portion of the bending area that is positioned between an edge of the substrate and the first conductive layer in a direction parallel to the bending axis.

Assignees

• Samsung Display Co Ltd

Inventors

• Choi Yoonsun
• Kim Hyunchul

Classifications

• Y02E10/549

  Organic PV cells · CPC title

• H10K50/8423

  Metallic sealing arrangements · CPC title

• H10K59/124

  Insulating layers formed between TFT elements and OLED elements · CPC title

• H10K50/844 Primary

  Encapsulations · CPC title

• H01L51/5253

  Electricity · mapped topic