Display device

Patent metadata

Field	Value
Publication number	US-12295233-B2
Application number	US-202217661877-A
Country	US
Kind code	B2
Filing date	May 3, 2022
Priority date	Aug 17, 2021
Publication date	May 6, 2025
Grant date	May 6, 2025

Abstract

A display device includes: a display panel including a pixel; and an input sensor on the display panel. The input sensor includes: sensing electrodes; and sensing lines including: a multi-layered area including a first trace line and a second trace line, the first and second trace lines being connected to the sensing electrodes and located at different layers from each other; a single-layer area including a first area and a second area; a first line including the first trace line in the first area, and the second trace line connected to the first trace line in the second area; and a second line adjacent to the first line, the second line including the second trace line in the first area, and the first trace line connected to the second trace line in the second area.

First claim

What is claimed is:

1. A display device comprising:
a display panel comprising a pixel; and
an input sensor on the display panel, the input sensor comprising:
sensing electrodes; and
sensing lines comprising:
a multi-layered area comprising a first trace line and a second trace line, the first and second trace lines being connected to the sensing electrodes and located at different layers from each other;
a single-layer area comprising a first area and a second area;
a first line comprising the first trace line in the first area, and the second trace line connected to the first trace line in the second area; and
a second line adjacent to the first line, the second line comprising the second trace line in the first area, and the first trace line connected to the second trace line in the second area.

2. The display device of claim 1 , wherein a length of the first line in the first area is equal to a length of the first line in the second area, and a length of the second line in the first area is equal to a length of the second line in the second area.

3. The display device of claim 1 , wherein the display panel comprises:
a first non-bending area comprising the pixel;
a bending area; and
a second non-bending area,
wherein the first non-bending area, the bending area, and the second non-bending area are arranged along a first direction, and the bending area is configured to be bent relative to an imaginary axis extending in a second direction crossing the first direction.

4. The display device of claim 3 , wherein the single-layer area overlaps with the first non-bending area.

5. The display device of claim 4 , wherein the sensing lines further comprise a connection area connecting the first area and the second area to each other, and the first trace line overlaps with the second trace line in the connection area.

6. The display device of claim 5 , wherein portions of the first trace line and the second trace line that overlap with each other in the connection area each have a parallelogram shape.

7. The display device of claim 5 , wherein at the connection area, the first trace line of the first line in the first area is connected to the second trace line of the first line in the second area.

8. The display device of claim 7 , wherein at the connection area, the second trace line of the second line in the first area is connected to the first trace line of the second line in the second area.

9. The display device of claim 5 , wherein the connection area extends in an oblique direction with respect to a direction in which the first and second lines extend in the second area.

10. The display device of claim 9 , wherein each of the first and second trace lines comprises:
a first extension portion extending in one direction, and connected to the multi-layered area in the first area;
a second extension portion extending in the one direction, and connected to the connection area in the first area; and
an inclination portion extending in an oblique direction with respect to the one direction, and located between the first extension portion and the second extension portion,
wherein the first extension portion of the second line is aligned with the second area of the first line in the one direction.

11. The display device of claim 3 , wherein:
sensing lines overlapping with the first area from among the sensing lines overlap with the first non-bending area of the display panel, and
sensing lines overlapping with the second area from among the sensing lines are spaced from the first area with the bending area interposed therebetween, and overlap with the second non-bending area.

12. The display device of claim 11 , wherein the display panel comprises:
a bridge line located in the bending area;
a first input contact hole exposing one end of the bridge line adjacent to the first non-bending area; and
a second input contact hole exposing another end of the bridge line adjacent to the second non-bending area, and
wherein the sensing lines overlapping with the first area are connected to the one end of the bridge line via the first input contact hole, and the sensing lines overlapping with the second area are connected to the other end of the bridge line via the second input contact hole.

13. The display device of claim 3 , wherein the first area overlaps with the first non-bending area, and at least a portion of the first area does not overlap with the bending area in the first direction.

14. The display device of claim 3 , wherein the multi-layered area comprises a plurality of multi-layered areas, and the single-layer area is located between the plurality of multi-layered areas.

15. The display device of claim 1 , wherein the input sensor comprises:
a first sensing insulating layer on the display panel;
a first sensing conductive layer on the first sensing insulating layer, and comprising the first trace line;
a second sensing insulating layer on the first sensing insulating layer to cover the first sensing conductive layer; and
a second sensing conductive layer on the second sensing insulating layer, and comprising the second trace line.

16. The display device of claim 15 , wherein each of the first trace line and the second trace line has a trapezoidal shape in a cross-sectional view.

17. The display device of claim 1 , wherein the first trace line of the first line does not overlap with the second trace line of the second line in the first area, and the second trace line of the first line does not overlap with the first trace line of the second line in the second area.

18. The display device of claim 17 , wherein a distance between the first trace line of the first line and the second trace line of the second line in the single-layer area is less than or equal to about 2 micrometers in a cross-sectional view.

19. The display device of claim 17 , wherein an end of the first trace line of the first line is aligned with an end of the second trace line of the second line in the single-layer area in a plan view.

20. The display device of claim 17 , wherein the first trace line has a width greater than a width of the second trace line in a cross-sectional view, and the first trace line has a thickness smaller than a thickness of the second trace line in the cross-sectional view.

Assignees

• Samsung Display Co Ltd

Inventors

• Bang Kiho
• Jeong Yeri
• Choi Wonjun
• Kim Eunhye
• Kim Il-Joo
• Jung Eunae

Classifications

• H10K2102/311

  Flexible OLED · CPC title

• H10K59/131 Primary

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

• G06F3/0446

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · CPC title

• G06F2203/04111

  Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate · CPC title

• H10K59/40 Primary

  OLEDs integrated with touch screens · CPC title