Display apparatus having pixel circuit that commonly drives light-emitting elements on different rows

Patent metadata

Field	Value
Publication number	US-12185583-B2
Application number	US-202217592527-A
Country	US
Kind code	B2
Filing date	Feb 4, 2022
Priority date	Feb 5, 2021
Publication date	Dec 31, 2024
Grant date	Dec 31, 2024

Abstract

A display apparatus includes a substrate a first pixel circuit arranged on the substrate, and a plurality of light-emitting elements arranged in a matrix on the substrate. The first pixel circuit is configured to commonly drive a first light-emitting element located in a first row and a second light-emitting element located in a second row different from the first row from among the plurality of light-emitting elements.

First claim

What is claimed is:

1. A display apparatus comprising:
a substrate;
a first pixel circuit arranged on the substrate;
a second pixel circuit arranged on the substrate, and
a plurality of light-emitting elements arranged in a matrix on the substrate,
wherein the first pixel circuit is configured to commonly drive a first light-emitting element located in a first row and a second light-emitting element located in a second row different from the first row from among the plurality of light-emitting elements, wherein
the first light-emitting element is located in a first column,
the second light-emitting element is located in a second column different from the first column,
the first light-emitting element and the second light-emitting element emit light of a first color, and
the second pixel circuit is configured to commonly drive a third light-emitting element and a fourth light-emitting element located in a third column between the first column and the second column from among the plurality of light-emitting elements.

2. The display apparatus of claim 1 , wherein the third light-emitting element and the fourth light-emitting element emit light of a second color different from the first color.

3. The display apparatus of claim 2 , further comprising a third pixel circuit arranged on the substrate,
wherein the third pixel circuit is configured to commonly drive a fifth light-emitting element located in the first row and the second column and a sixth light-emitting element located in the second row and the first column from among the plurality of light-emitting elements,
wherein the fifth light-emitting element and the sixth light-emitting element emit light of a third color different from the first color and the second color.

4. The display apparatus of claim 3 , further comprising a scan line extending in a row direction and commonly connected to the first through third pixel circuits.

5. The display apparatus of claim 3 , further comprising a plurality of data lines extending in a column direction,
wherein the first through third pixel circuits are respectively connected to first through third data lines that are different from one another from among the plurality of data lines.

6. The display apparatus of claim 3 , further comprising:
a fourth pixel circuit arranged on the substrate; and
a plurality of data lines extending in a column direction,
wherein the fourth pixel circuit is configured to commonly drive a seventh light-emitting element and an eighth light-emitting element located in a fourth column spaced apart from the third column with the second column therebetween from among the plurality of light-emitting elements,
wherein the third light-emitting element and the fourth light-emitting element emit light of a second color different from the first color,
wherein the second pixel circuit and the fourth pixel circuit are connected to one of the plurality of data lines.

7. The display apparatus of claim 1 , wherein the second pixel circuit is further configured to commonly drive a seventh light-emitting element and an eighth light-emitting element located in a fourth column spaced apart from the third column with the second column therebetween from among the plurality of light-emitting elements.

8. The display apparatus of claim 1 , further comprising:
a display area comprising a first display area and a second display area adjacent to a side of the first display area; and
a peripheral area outside the display area,
wherein the first pixel circuit is located only in the second display area.

9. The display apparatus of claim 1 , wherein each of the first light-emitting element and the second light-emitting element comprises:
a pixel electrode arranged on the substrate;
an opposite electrode arranged on the pixel electrode; and
an intermediate layer located between the pixel electrode and the opposite electrode,
wherein the pixel electrode of the first light-emitting element and the pixel electrode of the second light-emitting element are integrally formed with each other.

10. A display apparatus, comprising:
a substrate:
a first pixel circuit arranged on the substrate;
a second pixel circuit arranged on the substrate;
a plurality of light-emitting elements arranged in a matrix on the substate; and
a conductive layer configured to electrically connect the first pixel circuit to the first and second light-emitting elements, wherein
the first pixel circuit is configured to commonly drive a first light-emitting element located in a first row and a second light-emitting element located in a second row different from the first row from among the light emitting elements.

11. A display apparatus comprising:
a substrate;
a plurality of pixel circuits located on the substrate, and each comprising a thin-film transistor and a storage capacitor;
a first organic insulating layer covering the plurality of pixel circuits;
a plurality of light-emitting elements located on the first organic insulating layer and arranged in rows and columns in a plan view;
a conductive layer located on the first organic insulating layer and electrically connected to the first pixel circuit; and
a second organic insulating layer located between the conductive layer and the pixel electrodes of the plurality of light-emitting elements,
wherein a first pixel circuit from among the plurality of pixel circuits is configured to commonly drive a first light-emitting element located in a first row and a second light-emitting element located in a second row different from the first row from among the plurality of light-emitting elements,
wherein each of the plurality of light-emitting elements comprises:
a pixel electrode arranged on the first organic insulating layer;
an opposite electrode on the pixel electrode; and
an intermediate layer located between the pixel electrode and the opposite electrode,

wherein the conductive layer is electrically connected to both a first a pixel electrode of the first light-emitting element and a second pixel electrode of the second light-emitting element.

12. The display apparatus of claim 11 , further comprising an inorganic insulating layer located between the first organic insulating layer and the conductive layer.

13. The display apparatus of claim 11 , wherein a first pixel electrode of the first light-emitting element and a second pixel electrode of the second light-emitting element are integrally formed with each other, and are electrically connected to the first pixel circuit.

14. The display apparatus of claim 11 , wherein the first light-emitting element is located in a first column, and
the second light-emitting element is located in a second column different from the first column, and the first light-emitting element and the second light-emitting element emit light of a first color.

15. The display apparatus of claim 14 , further comprising a second pixel circuit and a third pixel circuit arranged on the substrate,
wherein the second pixel circuit is configured to commonly apply driving current to a third light-emitting element and a fourth light-emitting element located in a third column between the first column and the second column from among the plurality of light-emitting elements, and
the third pixel circuit is configured to commonly apply driving current to a fifth light-emitting element located in the first row and the second column and a sixth light-emitting element located in the second row and the first column from among the plurality of light-emitting elements,
wherein the third light-emitting element and the fourth light-emitting

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Sunho
• Kim Gunhee
• Park Juchan
• Yang Taehoon
• Lee Sunhee
• LEE Jaeun

Classifications

• H10H29/142 Primary

  Two-dimensional arrangements, e.g. asymmetric LED layout · CPC title

• H10K59/1216

  the pixel elements being capacitors · CPC title

• H10K59/353

  characterised by the geometrical arrangement of the RGB subpixels · CPC title

• H10K59/352

  the areas of the RGB subpixels being different · CPC title

• H10K59/131 Primary

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