# US 12,217,703 B2 · Electronic device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,217,703 B2 - Document ID: US12217703B2 - Status: Granted - Kind: B2 - Application number: 18/366,762 - Filed: 2023-08-08 - Published: 2024-05-23 - Granted: 2025-02-04 - Earliest claimed: 2022-11-21 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: So-Young Park; Soongyu Lee - Web page: https://patentgrep.com/patent/US12217703B2 ## CPC - G06F 3/041: Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means - G09G 3/3275: Details of drivers for data electrodes - G06F 3/04166: {Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving (Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184)} - G06F 3/044: by capacitive means - G06F 3/0443: {using a single layer of sensing electrodes} - G06F 3/0445: {using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer} - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - G09G 3/3225: using an active matrix - G09G 2320/0209: Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display - G09G 2320/0247: Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes - H10K 59/12: Active-matrix OLED [AMOLED] displays - H10K 59/40: OLEDs integrated with touch screens - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - 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) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract An electronic device includes a display layer configured to display an image, a sensor layer disposed on the display layer and including a plurality of first electrodes and a plurality of second electrodes, and a sensor driver configured to drive the sensor layer and selectively operate in a first mode or a second mode different from the first mode. When operating in the second mode, the sensor driver is configured to selectively operate in a first driving mode to simultaneously output a plurality of first transmission signals to the plurality of first electrodes or in a second driving mode to simultaneously output a plurality of second transmission signals different from the plurality of first transmission signals to the plurality of first electrodes. ## Claims ### Claim 1 An electronic device comprising: a display layer configured to display an image; a sensor layer disposed on the display layer and including a plurality of first electrodes and a plurality of second electrodes crossing the plurality of first electrodes; and a sensor driver configured to drive the sensor layer and selectively operate in a first mode or a second mode different from the first mode, wherein, in the second mode, the sensor driver is configured to selectively operate in a first driving mode to simultaneously output a plurality of first transmission signals to the plurality of first electrodes for detecting an object or in a second driving mode to simultaneously output a plurality of second transmission signals different from the plurality of first transmission signals to the plurality of first electrodes for detecting an object, wherein when flicker is detected, the sensor driver selectively operates in the second driving mode of the second mode. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein the plurality of first transmission signals are signals of a same phase. ### Claim 3 (depends on 1) The electronic device of claim 1, wherein the plurality of second transmission signals are signals of a same phase. ### Claim 4 (depends on 1) The electronic device of claim 1, wherein a frequency of each of the plurality of second transmission signals is hopped to a plurality of different frequencies in the second mode. ### Claim 5 (depends on 4) The electronic device of claim 4, wherein a frequency of each of the plurality of second transmission signals is hopped to different frequencies across a plurality of sub frames included in one frame. ### Claim 6 (depends on 1) The electronic device of claim 1, wherein a frequency of each of the plurality of second transmission signals is hopped to different frequencies in each of a plurality of frames. ### Claim 7 (depends on 1) The electronic device of claim 1, wherein a frequency of each of the plurality of second transmission signals is hopped within one frame. ### Claim 8 (depends on 7) The electronic device of claim 7, wherein intervals in which the frequency is hopped within the one frame are equal to each other. ### Claim 9 (depends on 1) The electronic device of claim 1, wherein a frequency of each of the plurality of second transmission signals is hopped in each of a plurality of sub frames included in one frame. ### Claim 10 (depends on 1) The electronic device of claim 1, wherein in the second driving mode: the sensor driver is configured to simultaneously output the plurality of second transmission signals and a plurality of third transmission signals, having a frequency different from the frequency of the plurality of second transmission signals, to the plurality of first electrodes. ### Claim 11 (depends on 1) The electronic device of claim 1, wherein: the plurality of second transmission signals comprise a 2-1 transmission signal having a first phase and a 2-2 transmission signal having a second phase different from the first phase, and among the plurality of first electrodes, a number of 1-1 electrodes to which the 2-1 transmission signal is provided and a number of 1-2 electrodes to which the 2-2 transmission signal is provided are different from each other. ### Claim 12 (depends on 11) The electronic device of claim 11, wherein positions of the 1-2 electrodes to which the 2-2 transmission signal is provided are determined every frame. ### Claim 13 (depends on 11) The electronic device of claim 11, wherein positions of the 1-2 electrodes to which the 2-2 transmission signal is provided are changed within one frame. ### Claim 14 (depends on 1) The electronic device of claim 1, wherein in the second driving mode: the sensor driver is configured to operate in a normal phase driving mode to simultaneously output the plurality of second transmission signals to the plurality of first electrodes, and in a reverse phase driving mode to simultaneously output a plurality of third transmission signals having a phase different from a phase of the plurality of second transmission signals to the plurality of first electrodes. ### Claim 15 (depends on 14) The electronic device of claim 14, wherein the sensor driver is configured to operate in at least one of the normal phase driving mode or the reverse phase driving mode for every frame. ### Claim 16 (depends on 14) The electronic device of claim 14, wherein the sensor driver is configured to operate in at least one of the normal phase driving mode or the reverse phase driving mode for each of a plurality of sub frames included in one frame. ### Claim 17 An electronic device comprising: a sensor layer including a plurality of first electrodes and a plurality of second electrodes crossing the plurality of first electrodes; and a sensor driver configured to drive the sensor layer and selectively operate in a proximity sensing mode or a touch sensing mode, wherein, in the proximity sensing mode, the sensor driver is configured to selectively operate in: a first driving mode to simultaneously output a plurality of first transmission signals of a same phase to the plurality of first electrodes for detecting an object, or a second driving mode to simultaneously output a plurality of second transmission signals different from the plurality of first transmission signals to the plurality of first electrodes for detecting the object, wherein when flicker is detected, the sensor driver selectively operates in the second driving mode of the proximity sensing mode. ### Claim 18 (depends on 17) The electronic device of claim 17, wherein: a frequency of each of the plurality of second transmission signals is hopped, and the frequency hops every frame, hops every plurality of sub frames included in one frame, or hops within each of the plurality of sub frames. ### Claim 19 (depends on 17) The electronic device of claim 17, wherein: in the second driving mode, the sensor driver is configured to operate in a normal phase driving mode to simultaneously output the plurality of second transmission signals to the plurality of first electrodes, and in a reverse phase driving mode to simultaneously output a plurality of third transmission signals having phases different from phases of the plurality of second transmission signals to the plurality of first electrodes, the sensor driver is configured to operate in at least one of the normal phase driving mode or the reverse phase driving mode every frame, or the sensor driver is configured to operate in at least one of the normal phase driving mode or the reverse phase driving mode for each of a plurality of sub frames included in one frame. ### Claim 20 (depends on 17) The electronic device of claim 17, wherein: the plurality of second transmission signals comprise a 2-1 transmission signal having a first phase and a 2-2 transmission signal having a second phase different from the first phase, among the plurality of first electrodes, a number of 1-1 electrodes to which the 2-1 transmission signal is provided and a number of 1-2 electrodes to which the 2-2 transmission signal are different from each other, and positions of the 1-2 electrodes to which the 2-2 transmission signal is provided are changed every frame or changed within one frame.