Electronic device comprising display panel

Patent metadata

Field	Value
Publication number	US-12069929-B2
Application number	US-202318447297-A
Country	US
Kind code	B2
Filing date	Aug 9, 2023
Priority date	Jul 20, 2021
Publication date	Aug 20, 2024
Grant date	Aug 20, 2024

Abstract

An electronic device includes a display panel that includes a plurality of light emitting elements, and an input sensor disposed on the display panel and that includes a plurality of mesh patterns. The mesh patterns include a plurality of openings formed therein and spaced apart from each other in a first direction and a second direction that crosses the first direction. The mesh patterns include a plurality of conductive patterns spaced apart from each other in a direction that cross the first and second directions, where a center opening of the plurality of openings is disposed therebetween, and a plurality of mesh lines disposed along an edge of the center opening and connected to the conductive patterns. Each of the conductive patterns includes at least one cut-away portion opened toward one of the openings.

First claim

What is claimed is:

1. An electronic device, comprising:
a display panel that includes a plurality of light emitting areas and emitting area adjacent to the plurality of light emitting areas; and
an input sensor disposed on the display panel and that includes a mesh pattern, wherein the mesh pattern comprises:
a plurality of mesh openings formed therein and that overlap the plurality of light emitting areas, respectively; and
a cross opening formed therein and that overlap the non-light emitting area and does not overlap the plurality of light emitting areas;
wherein the mesh pattern includes a cut-away portion that connects the cross opening with a mesh opening adjacent to the cross opening among the plurality of mesh openings.

2. The electronic device of claim 1 ,
wherein the plurality of mesh openings are arranged along a first direction and a second direction intersecting each other,
the cross opening is provided in plurality, and the plurality of the cross openings are spaced apart from each other in a third direction crossing the first and second directions and a fourth direction crossing the first to third directions with a center opening of the plurality of mesh openings disposed therebetween.

3. The electronic device of claim 2 ,
wherein the mesh pattern comprises:
a plurality of constructive patterns including the plurality of cross openings formed therein, respectively; and
a plurality of mesh lines disposed along an edge of the center opening and connected to the plurality of conductive patterns.

4. The electronic device of claim 3 ,
wherein the plurality of conductive patterns comprise:
first and second conductive patterns spaced apart from each other in the third direction wherein the center opening is disposed therebetween; and
third and fourth conductive patterns spaced apart from each other in the fourth direction wherein the center opening is disposed therebetween,

wherein the plurality of mesh lines comprise:
first mesh lines that extend in the first direction and connect the first conductive pattern to the third conductive pattern or connect the second conductive pattern to the fourth conductive pattern; and
second mesh lines that extend in the second direction and connect the first conductive pattern to the fourth conductive pattern or connect the second conductive pattern to the third conductive pattern, and
each of the first to fourth conductive patterns includes the cut-away portion.

5. The electronic device of claim 4 , wherein each of the first conductive pattern and the second conductive pattern includes the cut-away portion that opens toward the center opening.

6. The electronic device of claim 5 , wherein at least one of the cut-away portion of the third conductive pattern or the cut-away portion of the fourth conductive pattern opens toward the center opening.

7. The electronic device of claim 5 , wherein the cut-away portion of the third conductive pattern and the cut-away portion of the fourth conductive pattern open toward mesh openings different from the center opening, and different from each other.

8. The electronic device of claim 4 , wherein the cut-away portion of the first conductive pattern and the cut-away portion of the second conductive pattern open toward different openings.

9. The electronic device of claim 3 , wherein the plurality of mesh openings include two or more openings that have different sizes, when viewed in a plan view, and
the plurality of mesh openings comprise:
first and second openings that are spaced apart from each other in the first direction wherein the center opening is disposed therebetween; and
third and fourth openings that are spaced apart from each other in the second direction wherein the center opening is disposed therebetween.

10. The electronic device of claim 9 , wherein a color of light emitted from a light emitting area that overlaps the center opening is different from a color of light emitted from light emitting areas that overlap the first to fourth openings.

11. The electronic device of claim 9 , wherein a same color light is emitted from a light emitting area that overlaps the first opening and a light emitting area that overlaps the second opening.

12. The electronic device of claim 9 ; wherein cut-away portions of the first to fourth conductive patterns open toward the first opening or the second opening, and a light emitted from a light emitting area that overlaps the center opening has a wavelength shorter than a Wavelength of a light emitted Irwin a emitting area that overlaps the first opening.

13. The electronic device of claim 12 , wherein a color of light emitted from the light emitting areas that overlap the third and fourth Openings, respectively, is different from a color of light emitted from light emitting areas that overlap the first and second openings, respectively.

14. The electronic device of claim 9 , wherein cut-away portions of the first to fourth conductive patterns open toward the first opening or the second opening, and a size of the center opening is less than a size of the first opening and a size of the second opening, when viewed in a plan view.

15. The electronic device of claim 14 , wherein each of a size of the third opening and a size of the fourth opening is greater than the size of the first opening.

16. The electronic device of claim 3 , wherein the center opening overlaps one of the plurality of light emitting areas, a shortest separation distance between the one light emitting area and the conductive patterns is equal to a shortest separation distance between the one light emitting area and the mesh lines, when viewed in a plan view.

17. The electronic device of claim 4 , wherein at least one of the plurality of conductive patterns includes a plurality of cut-away portions that open toward different mesh openings.

18. The electronic device of claim 4 , wherein the plurality of conductive patterns comprise:
at least one first line that extends in the third direction; and
at least one second line and at least one third hue that are substantially parallel to the first line and spaced apart from each other wherein the cut-away portion is formed therebetween in the third direction.

19. The electronic device of claim 2 , wherein the mesh pattern includes a plurality of conductive patterns, the plurality of conductive patterns are spaced apart from each other in the third direction and the fourth direction with a center opening of the plurality of mesh openings disposed therebetween, and
two cross openings are thrilled in each of the plurality of conductive patterns.

20. The electronic device of claim 19 , wherein the cut-away portion is provided in plurality, each of the plurality of conductive patterns includes at least one cut-away portion, and
at least one of the two cross openings formed in each of the plurality of conductive patterns is connected to an adjacent mesh opening through the at least one cut-away portion, or the two cross openings formed in each of the plurality of conductive patterns are connected to each other through the at least one cut-away portion.

21. The electronic device of claim 1 , wherein the display panel comprises:
a display element layer including a plurality of light emitting elements that correspond to the plurality of light emitting areas; and
a thin film encapsulation layer disposed on the display element layer, and
the input sensor disposed directly on the thin film encapsulation layer.

22

Assignees

• Samsung Display Co Ltd

Inventors

• Bang Gyeongnam
• Kim Deokjung
• Kim Eunyoung

Classifications

• H10K59/131

  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

• G06F2203/04112

  Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G06F3/0448 Primary

  Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality · CPC title