# US 11,444,136 B2 · Display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,444,136 B2 - Document ID: US11444136B2 - Status: Granted - Kind: B2 - Application number: 17/237,946 - Filed: 2021-04-22 - Published: 2022-03-03 - Granted: 2022-09-13 - Earliest claimed: 2020-09-01 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Soowon Kim; Jaseung Ku; Yerin Oh; Suhyun Jeong - Web page: https://patentgrep.com/patent/US11444136B2 ## CPC - H10K 59/40: OLEDs integrated with touch screens - G06F 3/04162: {for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware} - G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads} - 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 3/0442: {using active external devices, e.g. active pens, for transmitting changes in electrical potential to be received by the digitiser} - G06F 3/0445: {using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer} - G09F 9/301: {flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED} - 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 - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS ## Abstract A display device includes a display panel, and an input sensing part disposed on the display panel. The input sensing part includes a first main electrode, a first sub-electrode adjacent to the first main electrode, a second main electrode and insulated from the first main electrode and the first sub-electrode, the second main electrode overlapping the first main electrode and the first sub-electrode, a second sub-electrode adjacent to the second main electrode, and insulated from the first main electrode and the first sub-electrode, the second sub-electrode overlapping the first main electrode and the first sub-electrode, a first group of switches selectively connecting a transmission line and one of the first main electrode and the first sub-electrode with each other, and a second group of switches selectively connecting a receiving line and one of the second main electrode and the second sub-electrode with each other. ## Claims ### Claim 1 A display device comprising: a display panel; and an input sensing part disposed on the display panel, the input sensing part comprising: a first main electrode extending lengthwise in a first direction; a first sub-electrode extending lengthwise in the first direction and being adjacent to the first main electrode; a second main electrode extending lengthwise in a second direction different from the first direction and insulated from the first main electrode and the first sub-electrode, wherein the second main electrode overlaps the first main electrode and the first sub-electrode; a second sub-electrode extending lengthwise in the second direction, disposed adjacent to the second main electrode, and insulated from the first main electrode and the first sub-electrode, wherein the second sub-electrode overlaps the first main electrode and the first sub-electrode; a first group of switches configured to selectively connect a transmission line and one of the first main electrode and the first sub-electrode with each other; and a second group of switches configured to selectively connect a receiving line and one of the second main electrode and the second sub-electrode with each other. ### Claim 2 (depends on 1) The display device of claim 1, wherein the first group of switches is configured to connect, in response to a first control signal, the transmission line and the first main electrode with each other. ### Claim 3 (depends on 2) The display device of claim 2, wherein the first group of switches is configured to connect, in response to a second control signal applied at a different timing from the first control signal, the transmission line and the first sub-electrode with each other. ### Claim 4 (depends on 1) The display device of claim 1, wherein the second group of switches is configured to connect, in response to a first control signal, the receiving line and the second main electrode with each other. ### Claim 5 (depends on 4) The display device of claim 4, wherein the second group of switches is configured to connect, in response to a second control signal applied at a different timing from the first control signal, the receiving line and the second sub-electrode with each other. ### Claim 6 (depends on 1) The display device of claim 1, wherein the first group of switches comprises: a first switch comprising a first input terminal connected to the transmission line, a first output terminal connected to the first main electrode, and a first control terminal receiving a first control signal; and a second switch comprising a second input terminal connected to the transmission line, a second output terminal connected to the first sub-electrode, and a second control terminal receiving a second control signal. ### Claim 7 (depends on 6) The display device of claim 6, wherein the second group of switches comprises: a third switch comprising a third input terminal connected to the receiving line, a third output terminal connected to the second main electrode, and a third control terminal receiving the first control signal; and a fourth switch comprising a fourth input terminal connected to the receiving line, a fourth output terminal connected to the second sub-electrode, and a fourth control terminal receiving the second control signal. ### Claim 8 (depends on 7) The display device,of claim 7, further comprising: a touch driving controller configured to generate, in response to a touch pen approaching the, display panel, an uplink signal, the first control signal, and the second control signal, wherein the first group of switches and the second group of switches are included in the touch driving controller, and wherein the second and fourth switches are turned on in response to the second control signal, and the first and. third switches turn off in response to the first control signal so that the transmission line and the first sub-electrode are connected with each other to transmit the uplink signal to the touch pen. ### Claim 9 (depends on 7) The display device of claim 7, further comprising: a touch driving controller configured to generate, in response to a touch pen which touches the display panel, the first control signal and the second control signal, wherein the first group of switches and the second group of switches are included in the touch driving controller, and wherein the first and third switches are turned on in response to the first control signal, and the second and fourth switches are turned on in response to the second control signal applied thereto at a different timing from the first control signal so that the transmission line and the receiving line receive a downlink signal transmitted from the touch pen. ### Claim 10 (depends on 9) The display device of claim 9, wherein the first control signal is applied to the first and third switches prior to the second control signal. ### Claim 11 (depends on 9) The display device of claim 9, wherein the second control signal is applied to the second and fourth switches prior to the first control signal. ### Claim 12 (depends on 7) The display device of claim 7, further comprising: a touch driving controller configured to generate an uplink signal in response to a user's finger which touches the display panel, wherein the first group of switches and the second group of switches are included in the touch driving controller, and wherein the first and third switches are turned on in response to the first control signal, and wherein the second and fourth switches are turned on in response to the second control signal applied at a different timing from the first control signal. ### Claim 13 (depends on 12) The display device of claim 12, wherein a driving signal is transmitted through the transmission line, and wherein a sensing signal is outputted through the receiving line. ### Claim 14 (depends on 1) The display device of claim 1, wherein the first main electrode has a width greater than a width of the first sub-electrode in the second direction. ### Claim 15 (depends on 14) The display device of claim 14, wherein the first sub-electrode is one of a plurality of first sub-electrodes, and wherein the first main electrode is disposed between two adjacent first sub-electrodes of the plurality of first sub-electrodes. ### Claim 16 (depends on 1) The display device of claim 1, wherein the second main electrode has a width greater than a width of the second sub-electrode in the first direction. ### Claim 17 (depends on 16) The display device of claim 16, wherein the second sub-electrode is one of a plurality of second sub-electrodes, and wherein the second main electrode is disposed between two adjacent second sub-electrodes of the plurality of second sub-electrodes. ### Claim 18 A display device comprising: a display panel; and an input sensing part disposed on the display panel, the input sensing part comprising: a first main electrode extending lengthwise in a first direction; a plurality of first sub-electrodes extending lengthwise in the first direction and disposed adjacent to the first main electrode; a second main electrode extending lengthwise in a second direction different from the first direction and insulated from the first main electrode and the plurality of first sub-electrodes, wherein the second main electrode overlaps the first main electrode and the plurality of first sub-electrodes; a plurality of second sub-electrodes extending lengthwise in the second direction, disposed adjacent to the second main electrode, and insulated from the first main electrode and the plurality of first sub-electrodes, wherein the plurality of second sub-electrodes overlap the first main electrode and the plurality of first sub-electrodes; a first transmission line connected to the first main electrode; a first receiving line connected to the second main electrode; a first group of switches configured to selectively connect a second transmission line and one of the plurality of first sub-electrodes with each other; and a second group of switches configured to selectively connect a second receiving line and one of the plurality of second sub-electrodes with each other. ### Claim 19 (depends on 18) The display device of claim 18, wherein the first group of switches are configured to sequentially connects the second transmission line to each of the plurality of first sub-electrodes, and wherein the second group of switches are configured to sequentially connect the second receiving line to each of the plurality of second sub-electrodes. ### Claim 20 (depends on 18) The display device of claim 18, wherein the plurality of first sub-electrodes is two first sub-electrodes, wherein the first main electrode is interposed between the two first sub-electrodes, and wherein a width of the first main electrode is smaller than a width of each of the two first sub-electrodes.