# US 12,602,124 B2 · Display device including a touch sensor and manufacturing method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,602,124 B2 - Document ID: US12602124B2 - Status: Granted - Kind: B2 - Application number: 18/931,360 - Filed: 2024-10-30 - Published: 2025-10-23 - Granted: 2026-04-14 - Earliest claimed: 2024-04-22 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Jun Hong Park; Jeong Won Kim; Kab Jong Seo - Web page: https://patentgrep.com/patent/US12602124B2 ## CPC - G06F 3/0412: {Digitisers structurally integrated in a display} - 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} - G06F 2203/04103: Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices - 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) ## Abstract A display device includes a display panel, a first insulating layer disposed on the display panel, and a sensing pattern disposed on the first insulating layer and including conductive lines, wherein a surface of the first insulating layer has a recess portion, and the conductive lines include a first line layer disposed within the recess portion, and a second line layer disposed between the first insulating layer and the first line layer. ## Claims ### Claim 1 A An electronic device comprising; a display device comprising: a display panel; a first insulating layer disposed on the display panel; and a sensing pattern disposed on the first insulating layer and including a plurality of conductive lines; wherein a surface of the first insulating layer has a recess portion, and wherein the plurality of conductive lines includes a first line layer disposed within the recess portion, and a second line layer disposed between the first insulating layer and the first line layer, wherein uppermost surfaces of the first line layer and the second line layer are coplanar with each other in a thickness direction of the display device. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein the first line layer and the second line layer protrude from the surface of the first insulating layer. ### Claim 3 (depends on 1) The electronic device of claim 1, wherein the first line layer has a line layer recess portion. ### Claim 4 (depends on 1) The electronic device of claim 1, wherein the plurality of conductive lines further includes a light blocking layer disposed on the first line layer and the second line layer. ### Claim 5 A display device comprising: a substrate; a plurality of pixels disposed on the substrate; a first insulating layer disposed on the plurality of pixels; a sensing pattern disposed on the first insulating layer and including a plurality of conductive lines; and a second insulating layer disposed on the sensing pattern, wherein the first insulating layer has a recess portion on a surface facing the sensing pattern, and wherein the plurality of conductive lines includes a first line layer disposed within the recess portion, and a second line layer disposed between the first insulating layer and the first line layer, wherein uppermost surfaces of the first line layer and the second line layer are coplanar with each other in a thickness direction of the display device. ### Claim 6 (depends on 5) The display device of claim 5, wherein the plurality of conductive lines further includes a light blocking layer disposed on the first line layer and the second line layer. ### Claim 7 (depends on 6) The display device of claim 6, wherein the light blocking layer is disposed between the plurality of conductive lines and the second insulating layer. ### Claim 8 (depends on 6) The display device of claim 6, wherein the light blocking layer is disposed between the recess portion of the first insulating layer and the second line layer, and partially surrounds the second line layer. ### Claim 9 (depends on 8) The display device of claim 8, wherein the first line layer has a bottom surface adjacent to the first insulating layer, an top surface opposite to the bottom surface and adjacent to the second insulating layer, and first and second side surfaces connecting the bottom surface and the top surface, and the light blocking layer is disposed on the top surface of the first line layer. ### Claim 10 (depends on 6) The display device of claim 6, wherein the light blocking layer includes a colored metal material or a light blocking material. ### Claim 11 (depends on 6) The display device of claim 6, wherein the plurality of conductive lines further includes an auxiliary insulating layer. ### Claim 12 (depends on 11) The display device of claim 11, wherein the light blocking layer is disposed between the first line layer and the second insulating layer, and the auxiliary insulating layer is disposed between the first line layer and the light blocking layer. ### Claim 13 (depends on 11) The display device of claim 11, wherein the light blocking layer is disposed between the second line layer and the first insulating layer, and the auxiliary insulating layer is disposed between the second line layer and the light blocking layer. ### Claim 14 (depends on 11) The display device of claim 11, wherein the light blocking layer includes a first sub-light blocking layer disposed between the first line layer and the second insulating layer, and a second sub-light blocking layer disposed between the second line layer and the first insulating layer, and the auxiliary insulating layer includes a first sub-auxiliary insulating layer disposed between the first line layer and the first sub-light blocking layer, and a second sub-auxiliary insulating layer disposed between the second line layer and the second sub-light blocking layer. ### Claim 15 (depends on 5) The display device of claim 5, wherein the first insulating layer includes a low-temperature inorganic layer or a low-temperature organic layer. ### Claim 16 (depends on 5) The display device of claim 5, wherein the first line layer includes copper, and the second line layer includes titanium. ### Claim 17 (depends on 5) The display device of claim 5, wherein the recess portion has a polygonal shape or a rounded shape when viewed in cross section. ### Claim 18 A manufacturing method of a display device comprising: providing a display panel; providing a first insulating layer on the display panel; forming a plurality of sensing patterns on the first insulating layer, each sensing pattern including a plurality of conductive lines; and providing a second insulating layer on the plurality of sensing patterns, wherein the forming of the plurality of sensing patterns includes forming a recess portion on a surface of the first insulating layer facing the plurality of sensing patterns; providing a first material within the recess portion; providing a second material within the recess portion including a low-resistance metal on the first material; and forming a first line layer disposed in the recess portion and a second line layer disposed between the first line layer and the first insulating layer by removing a portion of the first material and a portion of the second material to expose a portion of the surface of the first insulating layer, wherein the first line layer is formed from the second material, and the second line layer is formed from the first material, wherein uppermost surfaces of the first line layer and the second line layer are coplanar with each other in a thickness direction of the display device. ### Claim 19 (depends on 18) The manufacturing method of claim 18, wherein the forming of the plurality of sensing patterns further includes forming a light blocking layer overlapping the recess portion and partially surrounding the first line layer and the second line layer. ### Claim 20 (depends on 19) The manufacturing method of claim 19, wherein the forming of the plurality of sensing patterns further includes forming an auxiliary insulating layer disposed between the light blocking layer and at least one of the first line layer or the second line layer.