Display apparatus having a light-emitting device

Patent metadata

Field	Value
Publication number	US-10910457-B2
Application number	US-201916713728-A
Country	US
Kind code	B2
Filing date	Dec 13, 2019
Priority date	Dec 14, 2018
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

A display apparatus including two lines is provided. The two lines may extend in a first direction. A light-emitting device may be disposed between the two lines. Each line may be bent or extended in the direction of the device substrate which supports the light-emitting device. Thus, in the display apparatus, mixing of light emitted to the outside through the device substrate may be prevented. Therefore, in the display apparatus, the quality of realized image may be improved.

First claim

The invention claimed is:

1. A display apparatus, comprising:
an intermediate insulating layer on a device substrate, the intermediate insulating layer including a first intermediate penetrating hole and a second intermediate penetrating hole spaced apart from the first intermediate penetrating hole;
a first signal line on the intermediate insulating layer, the first signal line including a portion disposed in the first intermediate penetrating hole;
a second signal line spaced apart from the first signal line, the second signal line including a portion disposed in the second intermediate penetrating hole;
an over-coat layer on the intermediate insulating layer, the over-coat layer covering the first signal line and the second signal line; and
a light-emitting device on the over-coat layer, the light-emitting device overlapping with a region disposed between the first signal line and the second signal line.

2. The display apparatus according to claim 1 , further comprising a color filter between the intermediate insulating layer and the over-coat layer, the color filter overlapping with the light-emitting device.

3. The display apparatus according to claim 1 , wherein the first signal line covers a sidewall of the first intermediate penetrating hole and extends toward the second intermediate penetrating hole, and the second signal line covers a sidewall of the second intermediate penetrating hole and extends toward the first intermediate penetrating hole.

4. The display apparatus according to claim 3 , wherein the first signal line includes an end portion disposed in the first intermediate penetrating hole, and the second signal line includes an end portion disposed in the second intermediate penetrating hole.

5. The display apparatus according to claim 1 , wherein the first signal line is in contact with the device substrate in the first intermediate penetrating hole, and the second signal line is in contact with the device substrate in the second intermediate penetrating hole.

6. The display apparatus according to claim 1 , further comprising a lower insulating layer between the device substrate and the intermediate insulating layer,
wherein the lower insulating layer includes a first lower penetrating hole overlapping with the first intermediate penetrating hole, and a second lower penetrating hole overlapping with the second intermediate penetrating hole.

7. The display apparatus according to claim 6 , further comprising an upper insulating layer between the intermediate insulating layer and over-coat layer,
wherein the upper insulating layer includes a first upper penetrating hole between the first intermediate penetrating hole and the first signal line, and a second upper penetrating hole between the second intermediate penetrating hole and the second signal line.

8. The display apparatus according to claim 1 , further comprising a bank insulating layer on the over-coat layer, the bank insulating layer covering an edge of a lower electrode of the light-emitting device,
wherein the first intermediate penetrating hole and the second intermediate penetrating hole overlap the bank insulating layer.

9. A display apparatus, comprising:
a data line extending in a first direction;
a power supply line extending in the first direction, the power supply line spaced apart from the data line;
a unit pixel between the data line and the power supply line, the unit pixel including an emitting region and a driving region, the driving region being adjacently disposed to the emitting region;
a first penetrating hole overlapping with a portion of the data line; and
a second penetrating hole overlapping with a portion of the power supply line,
wherein a width of the first penetrating hole in the first direction and a width of the second penetrating hole in the first direction are smaller than a width of the unit pixel in the first direction.

10. The display apparatus according to claim 9 , wherein the width of the first penetrating hole and the width of the second penetrating hole in the first direction are larger than a width of the emitting region in the first direction.

11. The display apparatus according to claim 9 , wherein the width of the second penetrating hole in the first direction is the same as the width of the first penetrating hole in the first direction.

12. The display apparatus according to claim 9 , wherein a width of the first penetrating hole in a second direction perpendicular to the first direction is smaller than a width of the data line in the second direction, and a width of the second penetrating hole in the second direction is smaller than a width of the power supply line in the second direction.

13. The display apparatus according to claim 9 , wherein each of the data line and the power supply line includes a first region in the corresponding penetrating hole, and a second region on the first region, and
wherein a thickness of the second region is larger than a thickness of the first region.

14. The display apparatus according to claim 13 , wherein the second region includes a material different from the first region.

15. The display apparatus according to claim 13 , wherein the first penetrating hole is filled by the first region of the data line, and the second penetrating hole is filled by the first region of the power supply line.

16. A display device, comprising:
a substrate;
an insulating layer on the substrate;
a first hole extending through the insulating layer, wherein the first hole has a trapezoid shape;
a second hole extending through the insulating layer, the second hole being spaced apart from the first hole, wherein the second hole has a trapezoid shape;
a first signal line on the insulating layer and the first hole, wherein the first signal line extends towards the second hole;
a second signal line on the insulating layer and the second hole, wherein the second signal line extends towards the first hole; and
a light-emitting structure on the insulating layer.

17. The display device according to claim 16 , further comprising a color filter layer on the insulating layer, wherein the color filter layer is between the first hole and the second hole.

18. The display device according to claim 17 , further comprising an over-coat layer on the color filter layer, the over-coat layer being on the color filter layer and the first and second signal lines, wherein the light-emitting structure is on the over-coat layer.

19. The display device according to claim 18 , further comprising a buffer layer between the insulating layer and the first and second signal lines, the buffer layer having a first buffer hole and a second buffer hole, wherein the first buffer hole is on and overlaps the first hole and the second buffer hole is on and overlaps the second hole.

20. The display device according to claim 19 , wherein the first signal line is on and partially overlaps the first hole and the first buffer hole and the second signal line is on and partially overlaps the second hole and the second buffer hole.

Assignees

• Lg Display Co Ltd

Inventors

• Lee Seong-Joo
• Bang Jung-Ho
• Beak Jung-Sun
• Lee Sun-Mi
• Kim Tae-Hwan
• Im Hyeon-Chul

Classifications

• H10D86/441

  Interconnections, e.g. scanning lines · CPC title

• H10D86/451 Primary

  characterised by the compositions or shapes of the interlayer dielectrics · CPC title

• H10K59/124

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

• H10K59/131

  Interconnections, e.g. wiring lines or terminals · CPC title

• G02F1/133514

  Colour filters · CPC title