# US 12,223,137 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 12,223,137 B2 - Document ID: US12223137B2 - Status: Granted - Kind: B2 - Application number: 18/107,635 - Filed: 2023-02-09 - Published: 2023-10-12 - Granted: 2025-02-11 - Earliest claimed: 2022-04-06 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Satoshi Uchino; Kazuhiro Matsumoto; Masahiko Takiguchi - Web page: https://patentgrep.com/patent/US12223137B2 ## CPC - 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 3/0418: {for error correction or compensation, e.g. based on parallax, calibration or alignment} - G06F 3/0443: {using a single layer of sensing electrodes} - G06F 2203/04102: Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract An electronic device includes a display panel, a sensor layer disposed on the display panel and including a plurality of sensing electrodes, and a sensor driver connected with the plurality of sensing electrodes to drive the sensor layer. The sensor driver includes a plurality of analog-to-digital converters that samples an input signal received from the outside by the sensor layer. The plurality of analog-to-digital converters is connected one-to-one with the plurality of sensing electrodes. ## Claims ### Claim 1 An electronic device, comprising: a display panel; a sensor layer disposed on the display panel and including a plurality of sensing electrodes; and a sensor driver which is connected with the plurality of sensing electrodes and drives the sensor layer, the sensor driver including: a plurality of analog-to-digital converters which sample an input signal received from an outside by the sensor layer, wherein the plurality of analog-to-digital converters is connected one-to-one with the plurality of sensing electrodes, wherein the plurality of sensing electrodes is sampled at a same time by the plurality of analog-to-digital converters respectively connected with the plurality of sensing electrodes, and wherein sensing electrodes which are connected with the plurality of analog-to-digital converters among the plurality of sensing electrodes and sensing electrodes which are not connected with the plurality of analog-to-digital converters among the plurality of sensing electrodes are alternately arranged. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein a number of the plurality of sensing electrodes is equal to a number of the plurality of analog-to-digital converters. ### Claim 3 (depends on 2) The electronic device of claim 2, further comprising: a plurality of switches respectively connected between the plurality of sensing electrodes and the plurality of analog-to-digital converters, wherein the plurality of sensing electrodes is selectively electrically connected with the plurality of analog-to-digital converters through the plurality of switches. ### Claim 4 (depends on 1) The electronic device of claim 1, wherein the plurality of sensing electrodes includes a plurality of first sensing electrodes extending in a first direction and a plurality of second sensing electrodes extending in a second direction crossing the first direction. ### Claim 5 (depends on 4) The electronic device of claim 4, wherein the plurality of analog-to-digital converters includes a plurality of first analog-to-digital converters respectively connected with the plurality of first sensing electrodes and a plurality of second analog-to-digital converters respectively connected with the plurality of second sensing electrodes. ### Claim 6 (depends on 5) The electronic device of claim 5, wherein a number of the plurality of first analog-to-digital converters is equal to a number of the plurality of first sensing electrodes, and Wherein a number of the plurality of second analog-to-digital converters is equal to a number of the plurality of second sensing electrodes. ### Claim 7 (depends on 1) The electronic device of claim 1, wherein the plurality of analog-to-digital converters is connected one-to-one with some sensing electrodes to which the input signal is applied among the plurality of sensing electrodes. ### Claim 8 (depends on 1) The electronic device of claim 1, further comprising: a processor which receives a plurality of sampling result values from the sensor driver, wherein the processor calculates an output range of the plurality of sampling result values and a correction value based on the plurality of sampling result values. ### Claim 9 (depends on 8) The electronic device of claim 8, wherein the processor accumulates received sampling result values to calculate the output range and determines a predetermined sampling result value deviating from the output range among accumulated sampling result values as noise. ### Claim 10 (depends on 9) The electronic device of claim 9, wherein the processor replaces the predetermined sampling result value determined as the noise with an immediately previous sampling result value to calculate the correction value. ### Claim 11 (depends on 10) The electronic device of claim 10, wherein the output range is determined based on a maximum value and a minimum value of the plurality of sampling result values or an average value or a mode of the plurality of sampling result values. ### Claim 12 (depends on 8) The electronic device of claim 8, further comprising: a main driver connected with the sensor driver, wherein the processor is disposed in any one of the sensor driver or the main driver. ### Claim 13 An electronic device, comprising: a display panel; a sensor layer disposed on the display panel and including a plurality of sensing electrodes; and a sensor driver which is connected with the plurality of sensing electrodes and drives the sensor layer, the sensor driver includes: a plurality of analog-to-digital converters which sample an input signal received from an outside by the sensor layer, wherein one of the plurality of analog-to-digital converters is electrically connected with a sensing electrode group including some sensing electrodes adjacent to each other among the plurality of sensing electrodes, wherein the sensing electrode group is plural in number, wherein a plurality of sensing electrode groups is sampled at a same time by analog-to-digital converters respectively connected with the plurality of sensing electrode groups, and wherein sensing electrodes which are connected with the plurality of analog-to-digital converters among the plurality of sensing electrodes and sensing electrodes which are not connected with the plurality of analog-to-digital converters among the plurality of sensing electrodes are alternately arranged. ### Claim 14 An electronic device, comprising: a display panel; a sensor layer disposed on the display panel and including a plurality of sensing electrodes extending in a first direction and arranged in a second direction crossing the first direction; and a sensor driver which is electrically connected with the plurality of sensing electrodes and drives the sensor layer, the sensor driver including: a plurality of analog-to-digital converters which are connected one-to-one with the plurality of sensing electrodes and sample an input signal received in the plurality of sensing electrodes from an outside at a same time, wherein a number of the plurality of sensing electrodes is equal to a number of the plurality of analog-to-digital converters, and wherein sensing electrodes which are connected with the plurality of analog-to-digital converters among the plurality of sensing electrodes and sensing electrodes which are not connected with the plurality of analog-to-digital converters among the plurality of sensing electrodes are alternately arranged. ### Claim 15 (depends on 14) The electronic device of claim 14, wherein the sensor driver further includes a processor which receives a plurality of sampling result values, and wherein the processor calculates an output range based on the plurality of sampling result values and calculates a correction value for predetermined sampling result values deviating from the output range. ### Claim 16 (depends on 15) The electronic device of claim 15, wherein the correction value corresponds to a sampling result value received immediately before each of the predetermined sampling result values. ### Claim 17 (depends on 15) The electronic device of claim 15, wherein the output range is determined based on a maximum value and a minimum value of the plurality of sampling result values or an average value or a mode of the plurality of sampling result values.