# US 12,190,840 B2 · Electronic device and imaging method thereof

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- Number: US 12,190,840 B2
- Document ID: US12190840B2
- Status: Granted
- Kind: B2
- Application number: 17/297,663
- Filed: 2020-07-24
- Published: 2022-03-17
- Granted: 2025-01-07
- Earliest claimed: 2019-07-25
- Assignees: Boe Technology Group Co., Ltd.
- Applicants: Boe Technology Group Co., Ltd.
- Inventors: Pengpeng Wang; Haisheng Wang; Xiaoliang Ding; Yingming Liu; Yapeng Li; Yangbing Li
- Web page: https://patentgrep.com/patent/US12190840B2

## CPC

- G09G 3/3648: {using an active matrix (G09G3/367 - G09G3/3696 take precedence)}
- H04N 23/957: Light-field or plenoptic cameras or camera modules
- G09G 3/32: semiconductive, e.g. using light-emitting diodes [LED]
- G09G 2300/0426: Layout of electrodes and connections
- G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
- G09G 2354/00: Aspects of interface with display user
- G09G 2360/145: the light originating from the display screen
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

An electronic device includes a pixel layer, an image display control apparatus, a photosensitive layer, and a processor. The pixel layer includes a plurality of pixel units configured to display an image. The image display control apparatus is configured to control the plurality of pixel units to sequentially display at least one corresponding first image according to at least one first image signal. The photosensitive layer is configured to receive a reflected light formed after an emergent light emitted from the pixel layer when displaying one first image at each time is reflected by an object to be photographed, and to convert the reflected light received at each time into a second image signal. The processor is configured to determine an image of the object to be photographed according to the at least one first image signal and second image signals corresponding to the at least one first image signal.

## Claims

### Claim 1

An electronic device, comprising:
a pixel layer including a plurality of pixel units, the plurality of pixel units being configured to display an image;
an image display control apparatus electrically connected to the pixel layer and configured to control the plurality of pixel units in the pixel layer to sequentially display at least one corresponding first image according to at least one first image signal;
a photosensitive layer located on a side of the pixel layer facing away from a light-exit side of the pixel layer, the photosensitive layer being configured to receive a reflected light formed after an emergent light emitted from the pixel layer when displaying one first image at each time is reflected by an object to be photographed, and to convert the reflected light received at each time into a second image signal; and
a processor electrically connected to the photosensitive layer and configured to determine an image of the object to be photographed according to the at least one first image signal and second image signals corresponding to the at least one first image signal;
the electronic device further comprising a base;
wherein each pixel unit includes a pixel circuit and a light-emitting unit that are stacked on the base, and the pixel circuit is configured to drive the light-emitting unit to emit light;
wherein the light-emitting unit is closer to the photosensitive layer relative to the pixel circuit;
the light-emitting unit includes a first electrode layer, a light-emitting functional layer and a second electrode layer that are sequentially arranged in a direction towards the photosensitive layer, the second electrode layer is capable of reflecting light, and the second electrode layer is provided with first light-transmitting portions configured to transmit the reflected light received at each time;
the base is provided with second light-transmitting portions configured to transmit the reflected light received at each time and the emergent light, and the second light-transmitting portions are light-transmitting holes distributed in an array.

### Claim 2 (depends on 1)

The electronic device according to claim 1, further comprising an encapsulation substrate disposed on a side of the photosensitive layer facing away from the pixel layer.

### Claim 3 (depends on 1)

The electronic device according to claim 1, wherein the photosensitive layer includes a plurality of photosensitive elements, and an orthographic projection of each photosensitive element is located between two adjacent pixel units on a plane where the pixel layer is located.

### Claim 4 (depends on 1)

The electronic device according to claim 1, wherein the processor is further configured to sequentially output the at least one first image signal to the image display control apparatus when receiving an image acquisition signal.

### Claim 5 (depends on 1)

The electronic device according to claim 1, wherein the processor is further configured to transmit the image of the object to be photographed to the image display control apparatus after determining the image of the object to be photographed;
the image display control apparatus is further configured to control the pixel layer to display the determined image of the object to be photographed.

### Claim 6 (depends on 1)

The electronic device according to claim 1, wherein each first image signal is a preset image signal.

### Claim 7 (depends on 1)

The electronic device according to claim 1, wherein each pixel unit includes a plurality of sub-pixel units;
the image display control apparatus is configured to control the plurality of pixel units to sequentially display two corresponding first images according to two first image signals;
the electronic device has 0 to N levels of gray scales, and a sum of gray scales corresponding to a same sub-pixel unit in the two first images is N, wherein N is a maximum gray scale.

### Claim 8 (depends on 1)

The electronic device according to claim 1, wherein a first image signal in the at least one first image signal is a Hadamard matrix signal.