Display screen and electronic device

• US 10,957,246 B2
• Filed: 10/13/2019
• Issued: 03/23/2021
• Est. Priority Date: 10/30/2018
• Status: Active Grant

• Current Assignee: Beijing Xiaomi Mobile Software Co., Ltd. (Xiaomi Corp.)
• Original Assignee: Beijing Xiaomi Mobile Software Co., Ltd. (Xiaomi Corp.)
• Inventors: Sun, Changyu
• Primary Examiner(s): Azongha, Sardis F
• Application Number:
  US16/600,541
• Publication Number:
  US 20200135096A1
• Time in Patent Office: 527 Days
• CPC Class Codes: G09G 2300/0465 Improved aperture ratio, e.g. by size reduction of the pixel circuit, e.g. for improving the pixel density or the maximum displayable luminance or brightness
• CPC Class Codes: G09G 2320/0247 Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
• CPC Class Codes: G09G 2354/00 Aspects of interface with display user
• CPC Class Codes: G09G 3/30 using electroluminescent panels
• CPC Class Codes: G09G 3/3208 organic, e.g. using organic light-emitting diodes [OLED]

Abstract

A display screen includes a display module. The display module includes a light emitting layer and a driving layer for driving the light emitting layer to emit light. The sensor module is located beneath the display module or located beneath the light emitting layer in the display module. The sensor module includes a plurality of transmitting units for transmitting a wireless signal, and a receiving unit that is used for receiving a reflected signal obtained from the wireless signal being reflected by a detected object and determining distance information between the sensor module and the detected object according to the received reflected signal.

Claims

1. A display screen comprising:

a display module comprising a light emitting layer, and a driving layer configured to drive the light emitting layer to emit light; and

a sensor module located beneath the display module or located beneath the light emitting layer in the display module;

wherein the sensor module comprises;

a plurality of transmitting units configured to transmit a wireless signal; and

a receiving unit for receiving a reflected signal obtained from the wireless signal being reflected by a detected object and determining distance information between the sensor module and the detected object according to the received reflected signal;

wherein the display screen further comprises a control unit configured to control the transmitting unit to transmit the wireless signal;

wherein the control unit is further configured to control the plurality of transmitting units to transmit the wireless signal successively, and a time for each of the transmitting units to transmit the wireless signal is less than a time threshold; and

wherein the time threshold is a minimum duration value that one of the transmitting units continuously transmits the wireless signal to excite the light emitting layer to generate light spots.

2. The display screen according to claim 1, wherein distances between each of the transmitting units and the receiving unit are equal to one another, and strength of the wireless signals transmitted by the transmitting units are identical to one another.

3. An electronic device comprising the display screen according to claim 2, wherein

the display screen is arranged on a first side of the electronic device, and

the area of the display screen being equal to the area of the first side.

4. The display screen according to claim 1, wherein the plurality of transmitting units are arranged around the receiving unit.

5. An electronic device comprising the display screen according to claim 4, wherein

the display screen is arranged on a first side of the electronic device, and

the area of the display screen being equal to the area of the first side.

6. The display screen according to claim 1, wherein

the display module comprises a substrate, the driving layer and the light emitting layer are sequentially superimposed on the substrate, and

the sensor module is embedded in the substrate.

7. An electronic device comprising the display screen according to claim 6, wherein

the display screen is arranged on a first side of the electronic device, and

the area of the display screen being equal to the area of the first side.

8. The display screen according to claim 1, wherein an insulating layer is provided between the driving layer and the light emitting layer, and the sensor module is embedded in the insulating layer.

9. An electronic device comprising the display screen according to claim 8, wherein

the display screen is arranged on a first side of the electronic device, and

the area of the display screen being equal to the area of the first side.

10. An electronic device comprising the display screen according to claim 1, wherein

the display screen is arranged on a first side of the electronic device, and

the area of the display screen is equal to the area of the first side.

11. A mobile phone comprising the display screen according to claim 1, wherein

the display screen comprises one of an organic light-emitting diode (OLED) display or a liquid-crystal display (LCD);

distances between each of the transmitting units and the receiving unit are equal to one another, and strength of the wireless signals transmitted by the transmitting units are identical to one another;

the plurality of transmitting units are arranged around the receiving unit;

the display module comprises a substrate, the driving layer and the light emitting layer are sequentially superimposed on the substrate, and

the sensor module is embedded in the substrate;

an insulating layer is provided between the driving layer and the light emitting layer; and

the sensor module is embedded in the insulating layer.

12. The mobile phone of claim 11, wherein the sensor module comprises a distance sensor configured to detect a distance, and a radio frequency sensor configured to send or receive radio frequency information, and wherein the sensor module is arranged such that a full-screen display of the mobile phone is realized.

13. The mobile phone of claim 12, wherein the plurality of transmitting units are configured to avoid the light spots being generated in the light emitting layer by controlling the time for each of the plurality transmitting units to transmit the wireless signal.