# US 2022/0285449 A1 · Display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0285449 A1 - Document ID: US20220285449A1 - Status: Published application - Kind: A1 - Application number: 17/582,311 - Filed: 2022-01-24 - Published: 2022-09-08 - Earliest claimed: 2021-03-04 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: SANGHUN PARK; JIHOON KIM; YONGSUB SO - Web page: https://patentgrep.com/patent/US20220285449A1 ## CPC - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads} - G06F 3/0443: {using a single layer of sensing electrodes} - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/40: OLEDs integrated with touch screens - H10K 59/873: {Encapsulations} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display device includes a display panel configured to display an image. The display panel includes an electrode layer. An input sensing layer is disposed on the display panel. The input sensing layer includes a plurality of sensing electrodes including a first sensing electrode and a second sensing electrode. A plurality of signal lines is electrically connected to the plurality of sensing electrodes. The plurality of signal lines includes a first signal line electrically connected to the first sensing electrode and a second signal line electrically connected to the second sensing electrode. The first signal line has a length different from a length of the second signal line. A distance between the first signal line and the electrode layer is different from a distance between the second signal line and the electrode layer. ## Claims ### Claim 1 A display device comprising: a display panel configured to display an image, the display panel including an electrode layer; and an input sensing layer disposed on the display panel, the input sensing layer comprising: a plurality of sensing electrodes including a first sensing electrode and a second sensing electrode; and a plurality of signal lines electrically connected to the plurality of sensing electrodes, the plurality of signal lines includes a first signal line electrically connected to the first sensing electrode and a second signal line electrically connected to the second sensing electrode, wherein the first signal line has a length different from a length of the second signal line, and wherein a distance between the first signal line and the electrode layer is different from a distance between the second signal line and the electrode layer. ### Claim 2 (depends on 1) The display device of claim 1, wherein: the length of the first signal line is greater than the length of the second signal line; and the distance between the first signal line and the electrode layer is greater than the distance between the second signal line and the electrode layer. ### Claim 3 (depends on 2) The display device of claim 2, wherein the first signal line has a width greater than a width of the second signal line. ### Claim 4 (depends on 2) The display device of claim 2, wherein: the first sensing electrode and the second sensing electrode are spaced apart from each other in a first direction; the first signal line includes a first line portion extending in the first direction and a second line portion extending in a second direction crossing the first direction; and the second signal line comprises a third line portion extending in the first direction and a fourth line portion extending in the second direction. ### Claim 5 (depends on 4) The display device of claim 4, wherein: a length of the first line portion is greater than a length of the third line portion; and a distance between the first line portion and the electrode layer is greater than a distance between the third line portion and the electrode layer. ### Claim 6 (depends on 1) The display device of claim 1, wherein the display panel comprises: a display element layer including a light emitting element; and an encapsulation layer disposed on the display element layer, wherein the light emitting element comprises: a first electrode; a light emitting layer disposed on the first electrode; and a second electrode disposed on the light emitting layer. ### Claim 7 (depends on 6) The display device of claim 6, wherein the electrode layer comprises the second electrode, and a distance between the first signal line and the second electrode is different from a distance between the second signal line and the second electrode. ### Claim 8 (depends on 7) The display device of claim 7, wherein: the length of the first signal line is greater than the length of the second signal line; and a distance between the first signal line and the second electrode is greater than a distance between the second signal line and the second electrode. ### Claim 9 (depends on 6) The display device of claim 6, wherein: the encapsulation layer comprises a first encapsulation portion corresponding to the first signal line and a second encapsulation portion corresponding to the second signal line; and the first encapsulation portion has a thickness different from a thickness of the second encapsulation portion. ### Claim 10 (depends on 9) The display device of claim 9, wherein: the length of the first signal line is greater than the length of the second signal line; and the thickness of the first encapsulation portion is greater than the thickness of the second encapsulation portion. ### Claim 11 (depends on 10) The display device of claim 10, wherein the encapsulation layer comprises: a first inorganic layer disposed on the display element layer; a second inorganic layer disposed on the first inorganic layer; and an organic layer disposed between the first and second inorganic layers. ### Claim 12 (depends on 11) The display device of claim 11, wherein: the organic layer comprises a first organic layer portion corresponding to the first signal line and a second organic layer portion corresponding to the second signal line; and the first organic layer portion has a thickness greater than a thickness of the second organic layer portion. ### Claim 13 (depends on 10) The display device of claim 10, wherein: the first sensing electrode and the second sensing electrode are spaced apart from each other in a first direction; the first signal line includes a first line portion extending in the first direction and a second line portion extending in a second direction crossing the first direction; and the second signal line comprises a third line portion extending in the first direction and a fourth line portion extending in the second direction. ### Claim 14 (depends on 13) The display device of claim 13, wherein: the encapsulation layer includes a third encapsulation portion corresponding to the first line portion and a fourth encapsulation portion corresponding to the third line portion; the first line portion has a length greater than a length of the third line portion; and a thickness of the third encapsulation portion is greater than a thickness of the fourth encapsulation portion. ### Claim 15 (depends on 6) The display device of claim 6, wherein: the length of the first signal line is greater than the length of the second signal line; and the encapsulation layer further comprises: a first inorganic layer disposed on the display element layer; a second inorganic layer disposed on the first inorganic layer; an organic layer disposed between the first and second inorganic layers; a first insulating layer disposed on the second inorganic layer and corresponding to the first and second signal lines; and a second insulating layer disposed on the first insulating layer and corresponding to the first signal line. ### Claim 16 (depends on 1) The display device of claim 1, wherein the input sensing layer comprises: a sensing insulating layer disposed on the display panel; and a conductive layer disposed on the sensing insulating layer, the conductive layer including the plurality of sensing electrodes and the plurality of signal lines, wherein the sensing insulating layer includes a first insulating portion corresponding to the first signal line and a second insulating portion corresponding to the second signal line, and wherein the first insulating portion has a thickness different from a thickness of the second insulating portion. ### Claim 17 (depends on 16) The display device of claim 16, wherein: the length of the first signal line is greater than the length of the second signal line; and the thickness of the first insulating portion is greater than the thickness of the second insulating portion. ### Claim 18 (depends on 17) The display device of claim 17, wherein: the first sensing electrode and the second sensing electrode are spaced apart from each other in a first direction; the first signal line includes a first line portion extending in the first direction and a second line portion extending in a second direction crossing the first direction; and the second signal line comprises a third line portion extending in the first direction and a fourth line portion extending in the second direction. ### Claim 19 (depends on 18) The display device of claim 18, wherein: the sensing insulating layer includes a third insulation portion corresponding to the first line portion and a fourth insulation portion corresponding to the third line portion; the first line portion has a length greater than a length of the third line portion; and a thickness of the third insulating portion is greater than a thickness of the fourth insulating portion. ### Claim 20 (depends on 16) The display device of claim 16, wherein the sensing insulating layer comprises an organic material. ### Claim 21 A display device comprising: a display panel configured to display an image, the display panel including an electrode layer; and an input sensing layer disposed on the display panel and configured to sense an input, the input sensing layer comprising a plurality of sensing electrodes and a plurality of signal lines electrically connected to the plurality of sensing electrodes, respectively; wherein each of the plurality of signal lines has a length and a width different from a length and a width of other signal lines of the plurality of signal lines, each of the plurality of signal lines having a substantially same resistance as each other, wherein each of the plurality of signal lines has a distance to the electrode layer that is different from other signal lines of the plurality of signal lines, and wherein each of the plurality of signal lines has a substantially same capacitance with the electrode layer. ### Claim 22 (depends on 21) The display device of claim 21, wherein: the plurality of sensing electrodes includes 1st to n sensing electrodes, wherein n is a natural number greater than or equal to 2; the plurality of signal lines including 1st to n signal lines electrically connected to the 1st to n sensing electrodes, respectively; a length and a width of the 1st to n signal lines increase from the 1st signal line to the n signal line; and the distance of the 1st to n signal lines to the electrode layer increases from the 1st signal line to the n signal line.