System and method for setting display brightness of display of electronic device

Patent metadata

Field	Value
Publication number	US-10503250-B2
Application number	US-201415033333-A
Country	US
Kind code	B2
Filing date	Feb 5, 2014
Priority date	Feb 5, 2014
Publication date	Dec 10, 2019
Grant date	Dec 10, 2019

Abstract

The present disclosure provides a system and method of setting a display brightness of a display of an electronic device. One or more images of a user of the electronic device may be captured with a camera of the electronic device. A characteristic of an eye of the user may be detected in the one or more images. A light adaptation state of the user's eye may be determined based on the detected characteristic. The display brightness of the display of the electronic device may be set in view of the determined light adaptation state.

First claim

What is claimed is:

1. A method of setting a display brightness of a display of an electronic device, comprising:
capturing one or more images of an eye of a user of the electronic device with a camera of the electronic device;
illuminating the display during the capturing of the one or more images of the user of the electronic device with the camera, wherein the illumination of the display comprises illuminating the display and displaying monochrome red light;
analyzing the one or more images of the eye of the user to detect a characteristic of the eye of the user;
determining a light adaptation state of the user's eye based on the detected characteristic; and
setting the display brightness of the display of the electronic device based on the determined light adaptation state of the user's eye.

2. The method of claim 1 , wherein the illumination of the display comprises illuminating the display at a predetermined brightness suitable for use in a high light intensity environment.

3. The method of claim 2 , wherein a plurality of images are captured with the camera and the detected characteristic is a change in size or dilation of a pupil of the user's eye.

4. The method of claim 1 , wherein the illumination of the display comprises initially illuminating the display at a low brightness level and increasing the brightness of the display to a predetermined brightness suitable for use in a high light intensity environment.

5. The method of claim 1 , wherein a plurality of images are captured with the camera of the electronic device and the detected characteristic is a change in size or dilation of a pupil of the user's eye.

6. The method of claim 1 , wherein the detected characteristic is a size or dilation of a pupil of the user's eye.

7. The method of claim 1 , wherein the camera is an infrared camera and one or more infrared images are captured of the user of the electronic device.

8. The method of claim 1 , further comprising:
determining that the electronic device is presently located in a low light intensity environment; and
in response to the determination that that the electronic device is presently located in the low light intensity environment, performing the capturing of the one or more images of the user with the camera, the detecting of the characteristic of the eye of the user in the one or more images, the determining of the light adaptation state of the user's eye based on the detected characteristic, and the setting of the display brightness of the display in view of the determined light adaptation state.

9. An electronic device, comprising:
a camera;
a display; and
control circuitry that executes a display brightness function configured to control a brightness of the display by:
controlling the camera to capture one or more images of an eye of a user of the electronic device;
controlling the display to illuminate during the capturing of the one or more images of the user of the electronic device with the camera, wherein the illumination of the display comprises illuminating the display and displaying monochrome red light;
analyzing the one or more images of the eye of the user to detect a characteristic of the eye of the user;
determining a light adaptation state of the user's eye based on the detected characteristic; and
setting the display brightness of the display in view of the determined light adaptation state of the user's eye.

10. The electronic device of claim 9 , wherein the illumination of the display comprises illuminating the display at a predetermined brightness suitable for use in a high light intensity environment.

11. The electronic device of claim 10 , wherein the display brightness function is configured to capture a plurality of images with the camera, and the detected characteristic is a change in size or dilation of a pupil of the user's eye.

12. The electronic device of claim 9 , wherein the illumination of the display comprises initially illuminating the display at a low brightness level and increasing the brightness of the display to a predetermined brightness suitable for use in a high light intensity environment.

13. The electronic device of claim 9 , wherein the display brightness function is configured to capture a plurality of images with the camera, and the detected characteristic is a change in size or dilation of a pupil of the user's eye.

14. The electronic device of claim 9 , wherein the detected characteristic is a size or dilation of a pupil of the user's eye.

15. The electronic device of claim 9 , wherein the camera is an infrared camera and one or more infrared images are captured of the user of the electronic device.

16. The electronic device of claim 9 , wherein the display brightness function is further configured to:
determine that the electronic device is presently located in a low light intensity environment; and
in response to the determination that that the electronic device is presently located in the low light intensity environment, perform the controlling of the camera to capture the one or more images of the user of the electronic device, the detecting of the characteristic of the eye of the user in the one or more images, the determining of the light adaptation state of the user's eye based on the detected characteristic, and the setting of the display brightness of the display in view of the determined light adaptation state.

Assignees

• Maartensson Linus
• Thoern Ola
• De Leon David
• Sony Corp

Inventors

• Mårtensson Linus
• Thörn Ola
• De Léon David

Classifications

• G09G5/10

  Intensity circuits · CPC title

• A61B3/063

  for testing light sensitivity, i.e. adaptation · CPC title

• G06F3/04897

  Special input arrangements or commands for improving display capability · CPC title

• A61B3/0041

  characterised by display arrangements · CPC title

• G06F3/013 Primary

  Eye tracking input arrangements (G06F3/015 takes precedence) · CPC title