# US 10,503,250 B2 · System and method for setting display brightness of display of electronic device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,503,250 B2 - Document ID: US10503250B2 - Status: Granted - Kind: B2 - Application number: 15/033,333 - Filed: 2014-02-05 - Published: 2016-09-15 - Granted: 2019-12-10 - Earliest claimed: 2014-02-05 - Assignees: Sony Corporation - Applicants: Linus Mårtensson; Ola Thörn; David De Léon; Sony Corporation - Inventors: Linus Mårtensson; Ola Thörn; David De Léon - Web page: https://patentgrep.com/patent/US10503250B2 ## CPC - G06F 3/013: {Eye tracking input arrangements (G06F3/015 takes precedence)} - A61B 3/0041: {characterised by display arrangements} - A61B 3/063: {for testing light sensitivity, i.e. adaptation} - G06F 3/04897: {Special input arrangements or commands for improving display capability} - G06V 40/193: {Preprocessing; Feature extraction} - G09G 3/20: for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters} - G09G 3/3208: organic, e.g. using organic light-emitting diodes [OLED] - G09G 5/10: Intensity circuits - G09G 2320/0626: for control of overall brightness - G09G 2360/144: the light being ambient light - G09G 2380/08: Biomedical applications - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING - 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) ## 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. ## Claims ### Claim 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. ### Claim 2 (depends on 1) 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. ### Claim 3 (depends on 2) 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. ### Claim 4 (depends on 1) 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. ### Claim 5 (depends on 1) 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. ### Claim 6 (depends on 1) The method of claim 1, wherein the detected characteristic is a size or dilation of a pupil of the user's eye. ### Claim 7 (depends on 1) 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. ### Claim 8 (depends on 1) 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. ### Claim 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. ### Claim 10 (depends on 9) 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. ### Claim 11 (depends on 10) 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. ### Claim 12 (depends on 9) 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. ### Claim 13 (depends on 9) 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. ### Claim 14 (depends on 9) The electronic device of claim 9, wherein the detected characteristic is a size or dilation of a pupil of the user's eye. ### Claim 15 (depends on 9) 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. ### Claim 16 (depends on 9) 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.