Electroluminescent display panel, display apparatus and image acquisition method

Patent metadata

Field	Value
Publication number	US-11805692-B2
Application number	US-202016905932-A
Country	US
Kind code	B2
Filing date	Jun 19, 2020
Priority date	Aug 5, 2019
Publication date	Oct 31, 2023
Grant date	Oct 31, 2023

Abstract

Provided is an electroluminescent display panel, including: a first region and a second region. The first region includes a plurality of first pixels each including a plurality of first type subpixels and at least one second type subpixel. The second region includes a plurality of second pixels each including a plurality of first type subpixels. The second type subpixel is configured to be light-transmitting and non-light-transmitting in an image acquisition state and in an image display state, respectively.

First claim

What we claim is:

1. A display apparatus, comprising: an electroluminescent display panel and an image acquisition component located on a back surface of the electroluminescent display panel;
wherein the electroluminescent display panel comprising: a first region and a second region, the first region comprising a plurality of first pixels each comprising a plurality of first type subpixels and at least one second type subpixel; and the second region comprising a plurality of second pixels each comprising a plurality of first type subpixels, the second type subpixel being configured to be light-transmitting and non-light-transmitting in an image acquisition state and in an image display state, respectively,
wherein the first region comprises a plurality of first sub-regions, arrangement positions of second type subpixels in first pixels in the same first sub-region are the same, and arrangement positions of second type subpixels in first pixels in different first sub-regions are different from each other;
wherein the image acquisition component being disposed corresponding to the first region and configured to acquire, during image acquisition, a plurality of images at different positions of the first region, and combine the plurality of images into a complete target image, and
wherein a portion of the second type subpixels is shielded by the first type subpixels during image acquisition.

2. The display apparatus according to claim 1 , wherein the second type subpixel comprises: a first electrode and a second electrode which are light-transmitting and are oppositely arranged, and an ion conductive layer, an electrochromic layer, and an ion storage layer, which are sequentially stacked between the first electrode and the second electrode.

3. The display apparatus according to claim 2 , wherein a first pixel comprises three first type subpixels of different colors and one second type subpixel; and a second pixel comprises four first type subpixels of different colors.

4. The display apparatus according to claim 3 , wherein subpixels in the first pixel and the second pixel all have a “ ”-shaped distribution.

5. The display apparatus according to claim 1 , wherein arrangement of the plurality of first sub-regions is the same as arrangement of subpixels in the first pixels.

6. The display apparatus according to claim 1 , wherein the image acquisition component is configured to move, during image acquisition, in the first region to acquire light passing through second type subpixels at different positions of the first region.

7. An image acquisition method for a display apparatus, the display apparatus comprising: an electroluminescent display panel and an image acquisition component located on a back surface of the electroluminescent display panel; the electroluminescent display panel comprising: a first region and a second region, the first region comprising a plurality of first pixels each comprising a plurality of first type subpixels and at least one second type subpixel; and the second region comprising a plurality of second pixels each comprising a plurality of first type subpixels; the image acquisition component being disposed corresponding to the first region, wherein the first region comprises a plurality of first sub-regions, arrangement positions of second type subpixels in first pixels in the same first sub-region are the same, and arrangement positions of second type subpixels in first pixels in different first sub-regions are different from each other; and wherein a portion of the second type sub-pixels is shielded by the first type subpixels during image acquisition,
the image acquisition method comprising:
controlling, during image acquisition, second type subpixels in the first region of the electroluminescent display panel to be in a light-transmitting state; and
acquiring a plurality of images at different positions of the first region by the image acquisition component, and combining the plurality of images into a complete target image.

8. The image acquisition method according to claim 7 , wherein the acquiring a plurality of images at different positions of the first region by the image acquisition component comprises:
controlling the image acquisition component to move in the first region to acquire light passing through second type subpixels at different positions of a corresponding first region.

9. The image acquisition method according to claim 7 , further comprising: controlling, during image display, the second type subpixels in the first region of the electroluminescent display panel to be in a non-light-transmitting state.

10. The image acquisition method according to claim 7 , wherein the second type subpixel comprises: a first electrode and a second electrode which are light-transmitting and are oppositely arranged, and an ion conductive layer, an electrochromic layer, and an ion storage layer, which are sequentially stacked between the first electrode and the second electrode.

11. The image acquisition method according to claim 10 , wherein a first pixel comprises three first type subpixels of different colors and one second type subpixel; and a second pixel comprises four first type subpixels of different colors.

12. The image acquisition method according to claim 11 , wherein subpixels in the first pixel and the second pixel all have a “ ”-shaped distribution.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Wang Zifeng
• Ren Yan
• Cao Lei
• Sun Junmin

Classifications

• H10K59/353 Primary

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

• H10K59/65 Primary

  OLEDs integrated with inorganic image sensors · CPC title

• H10K59/50

  OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements · CPC title

• H10K59/121

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