# US 12,190,768 B1 · Method for ambient light detection, proximity sensing, and ambient light charging applied to display panel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,190,768 B1 - Document ID: US12190768B1 - Status: Granted - Kind: B1 - Application number: 18/238,493 - Filed: 2023-08-27 - Granted: 2025-01-07 - Earliest claimed: 2023-08-27 - Assignees: Yi-Jang Hsu; Yu-Ting Liu; Sheng-De Liu - Applicants: Yi-Jang Hsu; Yu-Ting Liu; Sheng-De Liu - Inventors: Yi-Jang Hsu; Yu-Ting Liu; Sheng-De Liu - Web page: https://patentgrep.com/patent/US12190768B1 ## CPC - 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} - G01J 1/4204: {with determination of ambient light (solar light G01J2001/4266)} - G01S 17/08: for measuring distance only (indirect measurement G01S17/46; active triangulation systems G01S17/48) - H02J 7/35: with light sensitive cells - G09G 2320/0626: for control of overall brightness - G09G 2360/144: the light being ambient light - 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) - G01J: MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY (light sources F21, H01J, H01K, H05B; investigating properties of materials by optical means G01N) - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY ## Abstract The present invention provides a method for ambient light detection, proximity sensing, and ambient light charging applied to a panel. The method includes: providing a display panel, wherein the display panel comprises a plurality of pixels with PN junctions units in a display area; and providing a driving circuit, wherein the driving circuit drives each display pixel or each PN junction unit through a display mode, a standby mode, and a blanking time, so that part of each display pixel or each PN junction unit is used to perform a display function and part of each display pixel or each PN junction unit is used to carry out the ambient light detection, proximity sensing, or ambient light charging. ## Claims ### Claim 1 A method for ambient light detection, proximity sensing, and ambient light charging applied to a panel, comprising the following steps: providing a display panel, wherein the display panel comprises a plurality of pixels with PN junctions units in a display area; and providing a driving circuit, wherein the driving circuit drives each display pixel or each PN junction unit through a display mode, a standby mode, and a blanking time, so that part of each display pixel or each PN junction unit is used to perform a display function and part of each display pixel or each PN junction unit is used to carry out the ambient light detection, proximity sensing, or ambient light charging; wherein the display function is carried out by using the display pixels of the display panel, and the functions of ambient light detection, proximity sensing, or ambient light charging may be switched by some of undisplayed pixels or all of the undisplayed pixels of the display panel, wherein the blanking time of the driving circuit comprises a horizontal blanking time and a vertical blanking time, the vertical blanking time has a corresponding vertical display time, a vertical blanking pulse time without display is inserted to the vertical display time for the ambient light detection or ambient light charging, and the horizontal blanking time has a corresponding horizontal display time, and a horizontal blanking pulse time without display is inserted to the horizontal display time for the ambient light detection or ambient light charging. ### Claim 2 (depends on 1) The method for ambient light detection, proximity sensing, and ambient light charging applied to the panel according claim 1, wherein the vertical blanking time is used for the ambient light detection, and the vertical display time is used for processing collected ambient light data. ### Claim 3 (depends on 1) The method for ambient light detection, proximity sensing, and ambient light charging applied to the panel according claim 1, wherein the vertical blanking time is used for the ambient light charging. ### Claim 4 (depends on 1) The method for ambient light detection, proximity sensing, and ambient light charging applied to the panel according claim 1, wherein the horizontal blanking time is used for the ambient light detection, and the horizontal display time is used for processing collected ambient light data. ### Claim 5 (depends on 1) The method for ambient light detection, proximity sensing, and ambient light charging applied to the panel according claim 1, wherein the horizontal blanking time is used for the ambient light charging. ### Claim 6 (depends on 1) The method for ambient light detection, proximity sensing, and ambient light charging applied to the panel according claim 1, wherein the display pixels and the PN junction units form a plurality of sub-systems, and each sub-system is capable of carrying out either two or three of the display function, the ambient light detection, the proximity sensing, or the ambient light charging, during a display time interval. ### Claim 7 (depends on 6) The method for ambient light detection, proximity sensing, and ambient light charging applied to the panel according claim 6, wherein each sub-system has a first subpanel, a second sub-panel, a third sub-panel, and a fourth sub-panel, and the first sub-panel, the second sub-panel, the third sub-panel, and the fourth sub-panel are capable of carrying out either two or three of the display function, the ambient light detection, the proximity sensing, or the ambient light charging, during a display time interval. ### Claim 8 (depends on 1) The method for ambient light detection, proximity sensing, and ambient light charging applied to the panel according claim 1, wherein the ambient light detection captures information of ambient light intensity through a whole area, sub-regions, subpixels or color units. ### Claim 9 (depends on 1) The method for ambient light detection, proximity sensing, and ambient light charging applied to the panel according claim 1, wherein the proximity sensing further features infrared LED lighting control for ToF (Time of Flight) or 3D sensing detection. ### Claim 10 (depends on 1) The method for ambient light detection, proximity sensing, and ambient light charging applied to the panel according claim 1, wherein the ambient light charging absorbs ambient light energy through a whole area, sub-regions, sub-pixels or color units. ### Claim 11 (depends on 1) The method for ambient light detection, proximity sensing, and ambient light charging applied to the panel according claim 1, wherein the ambient light detection and ambient light charging is achieved by a photovoltaic mode. ### Claim 12 (depends on 1) The method for ambient light detection, proximity sensing, and ambient light charging applied to the panel according claim 1, wherein the display panel comprises a solar cell, the solar cell is electrically connected to each of the PN junction units of the display panel, and each of the PN junction units comprises the functions of charging, storing power, and displaying.