Display panel having display areas with different transmittances

Patent metadata

Field	Value
Publication number	US-12200970-B2
Application number	US-202117535820-A
Country	US
Kind code	B2
Filing date	Nov 26, 2021
Priority date	Nov 29, 2019
Publication date	Jan 14, 2025
Grant date	Jan 14, 2025

Abstract

The present application discloses a display panel and a display apparatus. The display panel includes: a first display area and a second display area, a transmittance of the first display area is greater than a transmittance of the second display area; and a plurality of first sub-pixels located in the first display area and each of the plurality of the first sub-pixels includes a first electrode, a first light-emitting structure located on the first electrode, and a second electrode located on the first light-emitting structure, in which a ratio of a total area of first electrodes of the plurality of the first sub-pixels located in the first display area to an area of the first display area is in a range from 8% to 23%.

First claim

What is claimed is:

1. A display panel, comprising:
a substrate;
a first display area and a second display area, a transmittance of the first display area being greater than a transmittance of the second display area;
a plurality of first sub-pixels located in the first display area and each of the plurality of the first sub-pixels comprising a first electrode, a first light-emitting structure located on the first electrode, and a second electrode located on the first light-emitting structure; wherein a ratio of a total area of first electrodes of the plurality of the first sub-pixels located in the first display area to an area of the first display area is in a range from 8% to 23%;
a pixel defining layer located on the substrate, wherein the pixel defining layer comprises a plurality of first pixel openings located in the first display area and each first pixel opening of the plurality of the first pixel openings accommodates a light-emitting structure of a corresponding first sub-pixel; and
a device layer located between the substrate and the pixel defining layer, wherein the device layer comprises a first pixel circuit electrically connected with the first electrodes of the plurality of the first sub-pixels.

2. The display panel of claim 1 , wherein the ratio of the total area of the first electrodes of the plurality of the first sub-pixels located in the first display area to the area of the first display area is in a range from 15% to 20%.

3. The display panel of claim 1 , wherein the plurality of the first sub-pixels are classified as first red sub-pixels, first green sub-pixels, and first blue sub-pixels according to different colors of emitted light, and in the first display area, a ratio among a total area of first electrodes of the first red sub-pixels, a total area of first electrodes of the first green sub-pixels, and a total area of first electrodes of the first blue sub-pixels is 1:1.9:1.7.

4. The display panel of claim 1 , further comprising:
a plurality of second sub-pixels located in the second display area and each of the plurality of the second sub-pixels comprising a third electrode, a second light-emitting structure located on the third electrode, and a fourth electrode located on the second light-emitting structure, wherein an area of the first electrode of each of the plurality of the first sub-pixels is smaller than an area of the third electrode of each of the plurality of the second sub-pixels with a same color.

5. The display panel of claim 4 , wherein the first electrode and the third electrode have a same layer structure.

6. The display panel of claim 1 , wherein the transmittance of the first display area is greater than or equal to 15%.

7. The display panel of claim 1 , wherein the first electrode is a reflective electrode.

8. The display panel of claim 7 , wherein the first electrode comprises a first light-transmitting conductive layer, a reflective layer located on the first light-transmitting conductive layer, and a second light-transmitting conductive layer located on the reflective layer.

9. The display panel of claim 1 , wherein the second display area comprises a transition display area adjacent to the first display area, and the first pixel circuit is located in the transition display area.

10. The display panel of claim 1 , wherein an orthographic projection of each of the first electrodes on the substrate consists of one first graphic unit or two or more first graphic units jointed together, and the first graphic unit comprises at least one selected from a group comprising a round shape, an oval shape, a dumb-bell shape, a gourd shape, and a rectangle shape.

11. The display panel of claim 1 , wherein an orthographic projection of the first light-emitting structure on the substrate consists of one second graphic unit or two or more second graphic units jointed together, and the second graphic unit comprises at least one selected from a group comprising a round shape, an oval shape, a dumb-bell shape, a gourd shape, and a rectangle shape.

12. A display apparatus, comprising:
the display panel of claim 1 ; and
a photosensitive component located under the first display area of the display panel.

13. The display apparatus of claim 12 , wherein the ratio of the total area of the first electrodes of the plurality of the first sub-pixels located in the first display area to the area of the first display area is in a range from 15% to 23%.

14. The display apparatus of claim 12 , wherein the photosensitive component comprises:
a photosensitive chip having a photosensitive surface;
an infrared cut-off filter located on the photosensitive surface of the photosensitive chip; and
a lens group located at a side of the infrared cut-off filter away from the photosensitive surface.

15. A display panel, comprising:
a substrate;
a first display area and a second display area, a transmittance of the first display area being greater than a transmittance of the second display area;
a plurality of first sub-pixels located in the first display area and each of the plurality of the first sub-pixels comprising a first electrode, a first light-emitting structure located on the first electrode, and a second electrode located on the first light-emitting structure;
a pixel defining layer located on the substrate, wherein the pixel defining layer comprises a plurality of first pixel openings located in the first display area and each first pixel opening of the plurality of the first pixel openings accommodates a light-emitting structure of a corresponding first sub-pixel; and
a device layer located between the substrate and the pixel defining layer, wherein the device layer comprises a first pixel circuit electrically connected with the first electrodes of the plurality of the first sub-pixels.

16. The display panel of claim 15 , further comprising:
a plurality of second sub-pixels located in the second display area and each of the plurality of the second sub-pixels comprising a third electrode, a second light-emitting structure located on the third electrode, and a fourth electrode located on the second light-emitting structure, wherein an area of the first electrode of each of the plurality of the first sub-pixels is smaller than an area of the third electrode of each of the plurality of the second sub-pixels with a same color.

17. The display panel of claim 16 , wherein the first electrode and the third electrode have a same layer structure.

18. The display panel of claim 15 , wherein the first electrode comprises a first light-transmitting conductive layer, a reflective layer located on the first light-transmitting conductive layer, and a second light-transmitting conductive layer located on the reflective layer.

19. The display panel of claim 15 , wherein an orthographic projection of each of the first electrodes on the substrate consists of one first graphic unit or two or more first graphic units jointed together, and the first graphic unit comprises at least one selected from a group comprising a round shape, an oval shape, a dumb-bell shape, a gourd shape, and a rectangle shape.

20. The display panel of claim 15 , wherein an orthographic projection of the first light-emitting structure on the substrate consists of one second graphic unit or two or more second graphic units jointed together, and the second graphic unit comprises at least one selected from a group comprising a round shape, an oval shape, a dumb-bell shape, a gourd shape, and a rectangle shape.

Assignees

• Kunshan Govisionox Optoelectronics Co Ltd

Inventors

• Qin Xu
• Xu Chuanzhi
• Zhang Lu
• Hu Siming
• Han Zhenzhen

Classifications

• H10K59/80518

  Reflective anodes, e.g. ITO combined with thick metallic layers · CPC title

• H10K59/80517

  Multilayers, e.g. transparent multilayers · CPC title

• H10K59/65

  OLEDs integrated with inorganic image sensors · CPC title

• H10K59/121 Primary

  characterised by the geometry or disposition of pixel elements · CPC title

• H10K59/60 Primary

  OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes · CPC title