# US 12,120,937 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 12,120,937 B2 - Document ID: US12120937B2 - Status: Granted - Kind: B2 - Application number: 17/871,418 - Filed: 2022-07-22 - Published: 2023-05-04 - Granted: 2024-10-15 - Earliest claimed: 2021-10-28 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Changbum Kim; Jina Kang - Web page: https://patentgrep.com/patent/US12120937B2 ## CPC - G06F 3/0448: {Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality} - H10K 59/40: OLEDs integrated with touch screens - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 3/04162: {for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware} - G06F 3/0441: {using active external devices, e.g. active pens, for receiving changes in electrical potential transmitted by the digitiser, e.g. tablet driving signals} - 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} - 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 2203/04111: Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate - G06F 2203/04112: Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract An electronic device may include a display layer that displays an image and a sensor layer disposed on the display layer and sensing an external input. The sensor layer includes a plurality of channels equal to M. M is an integer greater than or equal to 5. A sensor driver drives the sensor layer. In an uplink section, the sensor driver provides an uplink signal to X first channels that are continuously arranged and provides an inverse phase signal having an inverse phase of the uplink signal to Y second channels that are continuously arranged. X and Y are integers greater than or equal to 2. Z off channels that are continuously arranged and are positioned between the first channels and the second channels may be turned off. Z is an integer greater than or equal to 1. M is a sum of X, Y and Z. ## Claims ### Claim 1 An electronic device comprising: a display layer that displays an image; a sensor layer disposed on the display layer and sensing an external input, the sensor layer including a plurality of channels equal to M, wherein M is an integer greater than or equal to 5; and a sensor driver that drives the sensor layer, wherein in an uplink section prior to determining that an input device is present, the sensor driver provides an uplink signal to a group of X first channels that are continuously arranged and directly border each other, wherein X is an integer greater than or equal to 2, the sensor driver provides an inverse phase signal having an inverse phase of the uplink signal to a group of Y second channels that are continuously arranged and directly border each other, wherein Y is an integer greater than or equal to 2, and Z off channels that are sequentially arranged among the plurality of channels and directly border each other and are positioned to directly border the group of X first channels and directly border the group of Y second channels, and are turned off, wherein Z is an integer greater than or equal to 1, and wherein M is a sum of X, Y, and Z. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein: in a first uplink section, the plurality of channels are sequentially defined as the X first channels, the Z off channels, and the Y second channels; and in a second uplink section subsequent to the first uplink section, the plurality of channels are sequentially defined as the Y second channels, the Z off channels, and the X first channels. ### Claim 3 (depends on 1) The electronic device of claim 1, wherein X is greater than Y. ### Claim 4 (depends on 1) The electronic device of claim 1, wherein: M is equal to 2n, wherein n is a positive integer; and X is equal to n. ### Claim 5 (depends on 1) The electronic device of claim 1, wherein: M is 2n+1, wherein n is a positive integer; and X is n+1. ### Claim 6 (depends on 1) The electronic device of claim 1, wherein: a sensing area and a peripheral area are defined in the sensor layer; and the X first channels overlap at least half of the sensing area. ### Claim 7 (depends on 1) The electronic device of claim 1, wherein: a sensing area and a peripheral area are defined in the sensor layer; and the Z off channels and the Y second channels together overlap less than a half of the sensing area. ### Claim 8 (depends on 1) The electronic device of claim 1, wherein, in the uplink section, both the uplink signal and the inverse phase signal are not provided to the Z off channels. ### Claim 9 (depends on 1) The electronic device of claim 1, wherein a first off channel operating as an off channel among the plurality of channels in a first uplink section and a second off channel operating as an off channel among the plurality of channels in a second uplink section subsequent to the first uplink section are different from each other. ### Claim 10 (depends on 1) The electronic device of claim 1, wherein X is greater than or equal to half of M and Y is less than the half of M. ### Claim 11 (depends on 1) The electronic device of claim 1, wherein Z is one or two. ### Claim 12 (depends on 1) The electronic device of claim 1, wherein: the sensor layer includes a plurality of electrodes that each extends in a first direction and are arranged in a second direction intersecting the first direction and a plurality of cross electrodes that each extends in the second direction and are arranged in the first direction, wherein each of the plurality of channels extends in the first direction and is arranged in the second direction and respectively corresponds to one of the plurality of electrodes. ### Claim 13 (depends on 12) The electronic device of claim 12, wherein the sensor driver is driven selectively in a first mode that detects a passive input based on a change in a mutual capacitance formed between the plurality of electrodes and the plurality of cross electrodes or a second mode that detects an active input based on a change in a capacitance of at least one of the plurality of electrodes and the plurality of cross electrodes. ### Claim 14 (depends on 13) The electronic device of claim 13, wherein each of the first mode and the second mode includes the uplink section. ### Claim 15 An electronic device comprising: a display layer that displays an image; a sensor layer disposed on the display layer and sensing an external input, the sensor layer including a plurality of channels; and a sensor driver that drives the sensor layer, wherein, in each of uplink sections prior to determining that an input device is present, the sensor driver provides an uplink signal to a group of plurality of first channels that are continuously arranged and directly border each other, and provides an inverse phase signal having an inverse phase of the uplink signal to a group of plurality of second channels that are continuously arranged and directly border each other, the plurality of second channels are different from the plurality of first channels, and the sensor driver does not provide the uplink signal and the inverse phase signal to off channels that are sequentially arranged among the plurality of channels and directly border each other and are positioned to directly border the group of the plurality of first channels and directly border the group of the plurality of second channels, wherein the uplink sections include a first uplink section and a second uplink section subsequent to the first uplink section, and wherein in the first uplink section, the plurality of channels are sequentially defined as the plurality of first channels, the off channels, and the plurality of second channels, and in the second uplink section, the plurality of channels are sequentially defined as the plurality of second channels, the off channels, and the plurality of first channels. ### Claim 16 (depends on 15) The electronic device of claim 15, wherein: a number of the plurality of channels is equal to a sum of a number of the plurality of first channels, a number of the off channels, and a number of the plurality of second channels, and wherein the number of the plurality of first channels is greater than the number of the plurality of second channels. ### Claim 17 (depends on 15) The electronic device of claim 15, wherein: a number of the plurality of channels is 2n and a number of the plurality of first channels is n, wherein n is a positive integer; or the number of the plurality of channels is 2n+1 and the number of the plurality of first channels is n+1, wherein n is the positive integer. ### Claim 18 (depends on 15) The electronic device of claim 15, wherein a number of the off channels is one or two. ### Claim 19 (depends on 15) The electronic device of claim 15, wherein the sensor layer includes a plurality of electrodes that each extends in a first direction and is arranged in a second direction intersecting the first direction and a plurality of cross electrodes that each extends in the second direction and is arranged in the first direction, and wherein each of the plurality of channels extends in the first direction and is arranged in the second direction and respectively corresponds to one of the plurality of electrodes. ### Claim 20 (depends on 19) The electronic device of claim 19, wherein the sensor driver is driven selectively in a first mode that detects a passive input based on a change in a mutual capacitance formed between the plurality of electrodes and the plurality of cross electrodes or a second mode that detects an active input based on a change in a capacitance of at least one of the plurality of electrodes and the plurality of cross electrodes, and the first mode and the second mode include the uplink sections.