Display device

Patent metadata

Field	Value
Publication number	US-2020295092-A1
Application number	US-202016792264-A
Country	US
Kind code	A1
Filing date	Feb 16, 2020
Priority date	Mar 12, 2019
Publication date	Sep 17, 2020
Grant date	—

Abstract

A display device may include a display panel and an input sensor. Mesh lines of the input sensor may include first mesh lines extending in a first direction and second mesh lines extending in a second direction crossing the first direction. The first mesh lines and the second mesh lines may cross each other at a plurality of cross points. In a unit region of the sensing electrode, first cutting points may be defined in the first mesh lines and the second mesh lines, and second cutting points may be defined in the first mesh lines and the second mesh lines.

First claim

1 . A display device, comprising:
a display panel comprising a plurality of emission regions comprising first color emission regions, second color emission regions, and third color emission regions; and an input sensor disposed on the display panel, the input sensor comprising a sensing electrode comprising mesh lines defining a plurality of mesh openings, the mesh lines comprising:
first mesh lines extending in a first direction;
second mesh lines extending in a second direction crossing the first direction, the second mesh lines crossing the first mesh lines at a plurality of cross points; and
a plurality of cutting points from which a portion of the mesh line is removed, the plurality of cutting points comprising:
first cutting points disposed between the first color emission regions and the third color emission regions; and
second cutting points disposed between the second color emission regions and the third color emission regions,

wherein the plurality of mesh openings comprise first mesh openings corresponding to the first color emission regions, second mesh openings corresponding to the second color emission regions, and third mesh openings corresponding to the third color emission regions, and wherein, in a unit region of the sensing electrode, the first cutting points are defined in the first mesh lines and the second mesh lines and the second cutting points are defined in the first mesh lines and the second mesh lines.

2 . The display device of claim 1 , wherein, in the unit region of the sensing electrode, a number of the first cutting points defined in the first mesh lines is equal to a number of the first cutting points defined in the second mesh lines.

3 . The display device of claim 1 , wherein the plurality of emission regions comprise:
an n-th emission row; an (n+1)-th emission row; an (n+2)-th emission row; and an (n+3)-th emission row extending in a third direction, where n is a natural number, wherein the n-th emission row, the (n+1)-th emission row, the (n+2)-th emission row, and the (n+3)-th emission row are arranged in a fourth direction crossing the third direction, wherein in the n-th emission row, the first color emission regions and the second color emission regions are alternately disposed in the third direction, in the (n+2)-th emission row, the first color emission regions and the second color emission regions are alternately disposed in the third direction, an order of the emission regions disposed in the n-th emission row is different from an order of the emission regions disposed in the (n+2)-th emission row, and the third color emission regions are disposed in each of the (n+1)-th emission row and the (n+3)-th emission row.

4 . The display device of claim 3 , wherein the emission regions of the n-th emission row and the emission regions of the (n+1)-th emission row are disposed in a staggered manner with respect to each other,
the emission regions of the (n+2)-th emission row and the emission regions of the (n+3)-th emission row are disposed in a staggered manner with respect to each other. the emission regions of the n-th emission row and the emission regions of the (n+2)-th emission row are disposed in a staggered manner with respect to each other, and the emission regions of the (n+1)-th emission row and the emission regions of the (n+3)-th emission row are disposed to correspond to each other.

5 . The display device of claim 3 , wherein the third color emission regions comprise first-shaped emission regions and second-shaped emission regions, which have a shape different from the first-shaped emission regions,
in the (n+1)-th emission row, the first-shaped emission regions and the second-shaped emission regions are alternately disposed in the third direction, in the (n+3)-th emission row, the first-shaped emission regions and the second-shaped emission regions are alternately disposed in the third direction, and a disposition order of the emission regions of the (n+1)-th emission row is different from a disposition order of the emission regions of the (n+3)-th emission row.

6 . The display device of claim 3 , wherein the unit region of the sensing electrode is divided into a first sub-region, a second sub-region, a third sub-region, and a fourth sub-region,
wherein each of the first sub-region, the second sub-region, the third sub-region, and the fourth sub-region comprises emission regions, which are arranged to form a k-by-k matrix, wherein the k-by-k matrix is defined based on the first direction and the second direction, and wherein the k is a natural number coprime to 4.

7 . The display device of claim 6 , wherein the third color emission region is disposed at a center of the first sub-region and the second sub-region,
wherein the first color emission region is disposed at a center of the third sub-region, and wherein the second color emission region is disposed at a center of the fourth sub-region.

8 . The display device of claim 7 , wherein the first sub-region and the second sub-region are disposed to face each other in the third or fourth direction,
wherein, in the first sub-region, the first cutting points are defined in the second mesh lines and the second cutting points are defined in the first mesh lines, and wherein, in the second sub-regions, the first cutting points are defined in the first mesh lines and the second cutting points are defined in the second mesh lines.

9 . The display device of claim 7 , wherein, in the third sub-region, the first cutting points are defined in the first mesh lines and the second mesh lines, and
wherein, in the fourth sub-region, the second cutting points are defined in the first mesh lines and the second mesh lines.

10 . The display device of claim 6 , wherein, the number k is 3, and
wherein a number of the cutting points defined in each of the first sub-region, the second sub-region, the third sub-region, and the fourth sub-region, is 4.

11 . The display device of claim 6 , wherein, the number k is 5, and
wherein a number of the cutting points defined in each of the first sub-region, the second sub-region, the third sub-region, and the fourth sub-region, is 12 or 16.

12 . The display device of claim 1 , wherein a first area of the first color emission regions is larger than a second area of the second color emission regions and a third area of the third color emission regions in plan view, and
wherein the second area of the second color emission regions is larger than the third area of the third color emission regions in the plan view.

13 . The display device of claim 1 , wherein the third color emission regions comprise first-shaped emission regions and second-shaped emission regions, the second-shaped emission regions having a shape different from the first-shaped emission regions.

14 . The display device of claim 13 , wherein the first-shaped emission regions and the second-shaped emission regions have substantially the same area in a plan view.

15 . The display device of claim 14 , wherein the first mesh openings have an area larger than the second mesh openings and the third mesh openings in the plan view, and
the second mesh openings have an area larger than the third mesh openings in the plan view.

16 . The display device of claim herein the input sensor further comprises an auxiliary electrode disposed inside the sensing electrode in a plan view, the auxiliary electrode being electrically disconnected to the sensing electrode.

17 . The display device of claim 1 , wherein the input sensor is disposed directly on the

Assignees

• Samsung Display Co Ltd

Inventors

• Moon Joong-Soo
• Kim Kwang-Min
• Kim Yangwan
• Lee Keunsoo
• Cho Youngjin

Classifications

• H10K50/10

  OLEDs or polymer light-emitting diodes [PLED] · CPC title

• H10K50/125

  specially adapted for multicolour light emission, e.g. for emitting white light · CPC title

• G06F3/0416

  Control or interface arrangements specially adapted for digitisers · CPC title

• G09F9/335 Primary

  being organic light emitting diodes [OLED] · CPC title

• G06F3/0443

  using a single layer of sensing electrodes · CPC title