Display substrate, display panel and display device

Patent metadata

Field	Value
Publication number	US-11943986-B2
Application number	US-202117361748-A
Country	US
Kind code	B2
Filing date	Jun 29, 2021
Priority date	Jun 5, 2019
Publication date	Mar 26, 2024
Grant date	Mar 26, 2024

Abstract

A display substrate and a display panel are provided. The display substrate includes: a substrate. The display substrate includes a first display region and a second display region. A light transmittance of the first display region is greater than a light transmittance of the second display region. The first display region is provided with a first pixel unit, and the second display region is provided with a second pixel unit, wherein a ratio of a first size of the first pixel unit in a first direction to a second size of the first pixel unit in a second direction is substantially same as a ratio of a first size of the second pixel unit in the first direction to a second size of the second pixel unit in the second direction, the first direction intersecting with the second direction.

First claim

The invention claimed is:

1. A display substrate, having a first display region and a second display region, a light transmittance of the first display region being greater than a light transmittance of the second display region, and comprising:
a substrate;
a plurality of first pixel units disposed in the first display region, each of the plurality of first pixel units comprising first OLED pixels of n colors, the first OLED pixels being disposed on the substrate, each of the first OLED pixels comprising at least two first sub-pixels arranged at intervals in a first direction,
wherein each of the first sub-pixels comprises:
a first electrode block;
a first light-emitting structure block, disposed on the first electrode block; and
a second electrode, disposed on the first light-emitting structure block; and
a plurality of second pixel units, disposed in the second display region, each of the second pixel units comprising second OLED pixels of n colors, and the second OLED pixels being disposed on the substrate;
wherein adjacent first sub-pixels of different first OLED pixels are arranged at intervals in a second direction, adjacent first electrode blocks of each of the plurality of first OLED pixels are electrically connected; and
a ratio of a first size of the first pixel unit in the first direction to a second size of the first pixel unit in the second direction is substantially same as a ratio of a first size of the second pixel unit in the first direction to a second size of the second pixel unit in the second direction, wherein the first direction intersects the second direction, and n is a natural number greater than or equal to 3.

2. The display substrate according to claim 1 , wherein an arrangement manner of the first sub-pixels of the first pixel unit is same as an arrangement manner of the second OLED pixels of the second pixel unit.

3. The display panel according to claim 2 , wherein the first pixel unit includes two or more first OLED pixels of a same color, and among the two or more first OLED pixels of the same color, one first OLED pixel is electrically connected to other first OLED pixel.

4. The display substrate according to claim 2 , wherein a value of n is 3, and the first pixel unit comprises a first red OLED pixel, a first green OLED pixel, and a first blue OLED pixel, the first red OLED pixel comprises at least two first red sub-pixels, the first green OLED pixel comprises at least two first green sub-pixels, and the first blue OLED pixel comprises at least two first blue sub-pixel;
adjacent first sub-pixels corresponding to the three colors of the first pixel unit are arranged in a triangle, and adjacent second OLED pixels corresponding to the three colors in the second pixel unit are arranged in a triangle; and/or
a plurality of first OLED pixels of the first pixel unit are arranged in parallel in the second direction, and the plurality of second OLED pixels of the second pixel unit are arranged in parallel in the second direction.

5. The display substrate according to claim 4 , wherein the first sub-pixels of the first pixel unit comprises at least two first pixel groups arranged in the second direction, each of the first pixel groups extends in the first direction, and in adjacent two first pixel groups, the first sub-pixels of one first pixel groups are arranged in a first order, and the first sub-pixels of the other first pixel group are arranged in a second order, and the first order is a red first sub-pixel, a green first sub-pixel, a blue first sub-pixel, the second order is a blue first sub-pixel, a green first sub-pixel, and a red first sub-pixel, in adjacent two first pixel groups of the first pixel unit, three first sub-pixels are arranged at intervals in the second direction, and the three first sub-pixels arranged at intervals in the second direction have different colors; and/or
the second display region comprises a plurality of second pixel groups arranged in the second direction, and each of the second pixel groups extends in the first direction; in adjacent two second pixel groups, the second OLED pixels of one second pixel group are arranged in a third order, and the second OLED pixels of the other second pixel group are arranged in a fourth order, the third order is the second red OLED pixel, the second green OLED pixel, and the second blue OLED pixel, and the fourth order is the second blue OLED pixel, the second green OLED pixel, and the second red OLED pixel, among adjacent two second pixel groups of the second pixel unit, three second OELD pixels are arranged at intervals in the second direction, and the three second OLED pixels arranged at intervals in the second direction have different colors.

6. The display substrate according to claim 2 , wherein each of the first pixel units further comprises a plurality of connecting portions, and in one first OLED pixel, adjacent two first electrode blocks are electrically connected through a corresponding connecting portion;
among a plurality of connecting portions of a same first pixel unit, at least part of the plurality of connecting portions and a corresponding first electrode block are disposed on different layers; or
the connecting portions of the same first OLED pixel are disposed on a same layer.

7. The display substrate according to claim 6 , wherein for the plurality of connecting portions, connecting portions whose orthographic projections on the substrate intersect with each other are disposed on different layers, and connecting portions whose orthographic projections on the substrate do not intersect with each other are disposed on a same layer or different layers.

8. The display substrate according to claim 6 , wherein in a case that the connecting portions of the same first OLED pixel are disposed in a same layer with a corresponding first electrode block, a size of the connecting portion in a direction perpendicular to its extending direction is greater than 3 μm, and is less than one half of a maximum size of the corresponding first electrode block.

9. The display substrate according to claim 1 , wherein for at least two first sub-pixels of a same first OLED pixel, two adjacent first sub-pixels are arranged in a staggered manner in the second direction; and/or
for at least two first sub-pixels of a same first OLED pixel, central axes of two first sub-pixels which are arranged at intervals of one first sub-pixel coincide in the first direction.

10. The display substrate according to claim 1 , wherein an orthographic projection of the first electrode block on the substrate comprises a first graphic unit or a plurality of first graphic units which are connected; and/or
an orthographic projection of the first light-emitting structure block on the substrate comprises a second graphic unit or a plurality of second graphic units which are connected, and the second graphic unit is same as or different from the first graphic unit.

11. The display substrate according to claim 1 , wherein a driving mode of the first OLED pixel is an active driving, and each of the plurality of first OLED pixels is driven by a pixel circuit; or
a driving mode of the first OLED pixel is a passive driving.

12. The display substrate according to claim 11 , wherein the first display region is adjacent to the second display region, at least one portion of the first display region is surrounded by the second display region, and in a case that the driving mode of the first OLED pixel is the active driving, the pixel circuit corresponding to the first OLED pixel is disposed in the second display region; or
the display substrate further comprises a transition display region disposed between the fir

Assignees

• Kunshan Govisionox Optoelectronics Co Ltd

Inventors

• Lou Junhui
• Zhang Lu

Classifications

• H10K59/131

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

• H10K59/353 Primary

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

• G09G3/3208 Primary

  organic, e.g. using organic light-emitting diodes [OLED] · CPC title

• G09G3/3225

  using an active matrix · CPC title

• H10K50/84

  Passivation; Containers; Encapsulations · CPC title