Off-screen display control method, electronic device, and storage medium

Patent metadata

Field	Value
Publication number	US-12340620-B2
Application number	US-202218259313-A
Country	US
Kind code	B2
Filing date	Dec 14, 2022
Priority date	Jan 10, 2022
Publication date	Jun 24, 2025
Grant date	Jun 24, 2025

Abstract

An off-screen display control method, an electronic device, and a computer-readable storage medium. The off-screen display control method includes: enabling a face detection function when a display screen of an electronic device is in an off-screen state and obtaining image data through a front camera; determining, by the electronic device, that the image data includes a part or the entire of a face image, and displaying an off-screen display interface on the display screen; and determining, by the electronic device, that the image data does not include a part or the entire of a face image, and maintaining the off-screen state on the display screen.

First claim

What is claimed is:

1. A method, comprising:
enabling a face detection function when a display screen of an electronic device is in an off-screen state and obtaining image data through a front camera;
displaying an off-screen display interface on the display screen of the electronic device when the image data comprises a part of or an entirety of a face image; and
maintaining the off-screen state on the display screen of the electronic device when the image data does not comprise a part of or the entirety of a face image.

2. The method of claim 1 , wherein a processor of the electronic device comprises an intelligent sensor hub that comprises an always-on (AON) module, and wherein enabling the face detection function comprises starting the AON module to perform the face detection function.

3. The method of claim 2 , wherein the image data comprising the part of or the entirety of the face image comprises the AON module obtaining a face detection event.

4. The method of claim 2 , wherein the AON module comprises an image signal processor (ISP) and a face detection module, and wherein starting the AON module to perform the face detection function comprises:
controlling the ISP to output image data; and
controlling the face detection module to perform face detection on the image data.

5. The method of claim 1 , wherein the electronic device comprises a virtual always-on (AON) camera, and wherein enabling the face detection function comprises enabling the face detection function when the virtual AON camera determines that the display screen is in the off-screen state.

6. The method of claim 5 , wherein before enabling the face detection function when the virtual AON camera determines that the display screen is in the off-screen state, the method further comprises receiving, by the virtual AON camera, an off-screen state of the display screen and recording the off-screen state of the display screen.

7. The method of claim 5 , wherein after enabling the face detection function when the virtual AON camera determines that the display screen is in the off-screen state, the method further comprises waking up an application processor of the electronic device when the virtual AON camera determines that the image data comprises a part of or the entirety of image data, and sending the off-screen state of the display screen to the application processor.

8. The method of claim 1 , wherein after displaying the off-screen display interface, the method further comprises disabling the face detection function when the display screen is in a non-off-screen state.

9. The method of claim 8 , wherein an application processor of the electronic device determines that the display screen is in the non-off-screen state.

10. The method of claim 9 , wherein before disabling the face detection function, the method further comprises receiving, by the application processor, indication information a virtual always-on (AON) camera, wherein the indication information indicates that the face detection function is in an enabled state.

11. The method of claim 8 , wherein disabling the face detection function when the electronic device determines that the display screen is in a non-off-screen state comprises controlling an always-on (AON) module of the electronic device to disable the face detection function when the display screen is in the non-off-screen state.

12. The method of claim 1 , wherein the electronic device comprises an always-on display (AOD) application, and wherein the method further comprises controlling the display screen to display the off-screen display interface when the AOD application determines that the image data comprises a part of or the entirety of a face image.

13. The method of claim 1 , wherein before enabling the face detection function, the method further comprises determining that a face is recognized and an off-screen display function is enabled.

14. The method of claim 1 , wherein before displaying the off-screen display interface, the method further comprises determining that the image data comprises a specified feature that represents a face image of a legitimate user of the electronic device.

15. The method of claim 1 , wherein the image data comprising the part of or the entirety of the face image comprises a plurality of frames of image data comprising the part of or the entirety of the face image, wherein the plurality of frames of image data are from a front camera of the electronic device within a preset time.

16. The method of claim 1 , wherein before enabling the face detection function, the electronic device satisfies a preset condition that the display screen of the electronic device is not in a downward posture, a brightness of an environment of the electronic device is not less than a first threshold, and the electronic device detects no object that approaches.

17. The method of claim 1 , wherein before displaying the off-screen display interface a difference between a time when it is currently recognized that the image data comprises the part of or the entirety of the face image and a time when it is previously recognized that the image data comprises the part of or the entirety of the face image is not less than a threshold.

18. The method of claim 17 , wherein a face detection event is based on recognizing that the image data comprises the part of or the entirety of the face image, wherein the time when it is currently recognized that the image data comprises the part of or the entirety of the face image is a reporting time of the face detection event, and wherein the time when it is previously recognized that the image data comprises the part of or the entirety of the face image is a reporting time of a previous face detection event.

19. An electronic device, comprising:
one or more processors;
a display screen coupled to the one or more processors;
a front camera coupled to the one or more processors; and
one or more memories coupled to the one or more processors, wherein the memory is configured to store instructions that, when executed by the one or more processors, cause the electronic device to be configured to:
enable a face detection function when the display screen is in an off-screen state and obtain image data through the front camera;
display an off-screen display interface on the display screen when the image data comprises a part of or an entirety of a face image; and
maintain the off-screen state on the display screen when the image data does not comprise a part of or the entirety of a face image.

20. A non-transitory computer-readable storage medium that stores instructions that, when executed by a processor of an electronic device, cause the electronic device to be configured to:
enable a face detection function when a display screen of the electronic device is in an off-screen state and obtaining image data through a front camera;
display an off-screen display interface on the display screen when the image data comprises a part of or an entirety of a face image; and
maintain the off-screen state on the display screen when the image data does not comprise a part of or the entirety of a face image.

Assignees

• Honor Device Co Ltd

Inventors

• Li Jingwei
• Che Yufeng
• Gao Qian
• Huang Libo
• Huang Wenhan
• Liu Chao

Classifications

• G06F3/14 Primary

  Digital output to display device {; Cooperation and interconnection of the display device with other functional units} · CPC title

• G06F1/3265

  Power saving in display device · CPC title

• G06F1/3231

  Monitoring the presence, absence or movement of users · CPC title

• G09G2330/022

  in absence of operation, e.g. no data being entered during a predetermined time · CPC title

• G09G2330/021

  Power management, e.g. power saving · CPC title