# US 11,907,469 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 11,907,469 B2 - Document ID: US11907469B2 - Status: Granted - Kind: B2 - Application number: 17/963,869 - Filed: 2022-10-11 - Published: 2023-07-06 - Granted: 2024-02-20 - Earliest claimed: 2021-12-31 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: Sungsu Han; HwiDeuk Lee; Yangsik Lee; JuHong Kim - Web page: https://patentgrep.com/patent/US11907469B2 ## CPC - G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads} - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 3/0443: {using a single layer of sensing electrodes} - H10K 59/124: Insulating layers formed between TFT elements and OLED elements - H10K 59/40: OLEDs integrated with touch screens - 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: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display device can include a substrate in which a plurality of pixels each including an emissive area and a transmissive area is disposed. The display device can further include a touch electrode in the transmissive area, and a plurality of first touch connection lines extended in a first direction and electrically connecting the touch electrodes respectively disposed in the pixels adjacent to each other. Further, the display device can include a reference line on the substrate in the emissive area and extended in a second direction different from the first direction, and a plurality of touch lines extended in the second direction in the emissive area and disposed on a plurality of insulating layers covering the reference line. Furthermore, the display device can include a planarization layer covering the plurality of touch lines, and a plurality of light emitting diodes on the planarization layer in the emissive area. ## Claims ### Claim 1 A display device, comprising: a substrate in which a plurality of pixels is disposed, each of the plurality of pixels including an emissive area and a transmissive area; a touch electrode in the transmissive area of each of the plurality of pixels; a plurality of first touch connection lines extended in a first direction, and electrically connecting the touch electrodes respectively disposed in the plurality of pixels adjacent to each other; a reference line on the substrate in the emissive area, and extended in a second direction different from the first direction; a plurality of touch lines extended in the second direction in the emissive area, and disposed on a plurality of insulating layers covering the reference line; a planarization layer covering the plurality of touch lines; and a plurality of light emitting diodes on the planarization layer in the emissive area, wherein the touch electrode is disposed on the planarization layer, and the plurality of first touch connection lines is disposed under the planarization layer. ### Claim 2 (depends on 1) The display device according to claim 1, wherein the plurality of first touch connection lines is disposed crossing the emissive area and the transmissive area within the plurality of pixels. ### Claim 3 (depends on 1) The display device according to claim 1, further comprising: a plurality of second touch connection lines on a same layer as the plurality of touch lines in the emissive area, wherein the plurality of second touch connection lines is extended in the second direction, and electrically connects the plurality of first touch connection lines respectively disposed in the plurality of pixels adjacent to each other. ### Claim 4 (depends on 1) The display device according to claim 1, wherein the plurality of first touch connection lines includes: a first sub-line overlapping with the touch electrode in the transmissive area; and a second sub-line extended from the first sub-line and disposed in the emissive area, wherein the first sub-line is disposed on a same layer as the reference line, and the second sub-line is disposed between the plurality of insulating layers. ### Claim 5 (depends on 4) The display device according to claim 4, wherein the second sub-line and the reference line are disposed to intersect with each other in the emissive area. ### Claim 6 (depends on 4) The display device according to claim 4, wherein one end portion and another end portion of the second sub-line are electrically connected to the first sub-lines disposed in the plurality of pixels, respectively, adjacent to each other in the first direction. ### Claim 7 (depends on 4) The display device according to claim 4, wherein the touch electrode and the first sub-line overlapping with each other are electrically connected to each other through a sub-pattern. ### Claim 8 (depends on 7) The display device according to claim 7, wherein the sub-pattern is disposed between the plurality of insulating layers or between the plurality of insulating layers and the planarization layer. ### Claim 9 (depends on 4) The display device according to claim 4, further comprising: a third sub-line in contact with the first sub-line in the transmissive area, wherein the third sub-line is extended in the second direction on a same layer as the second sub-line. ### Claim 10 (depends on 9) The display device according to claim 9, wherein one end portion and another end portion of the third sub-line are electrically connected to the touch electrodes disposed in the plurality of pixels, respectively, adjacent to each other in the second direction. ### Claim 11 (depends on 10) The display device according to claim 10, wherein the third sub-line is electrically connected to the touch electrode through a sub-pattern disposed on the plurality of insulating layers. ### Claim 12 (depends on 1) The display device according to claim 1, further comprising: a plurality of touch electrode blocks each including some of the plurality of pixels, wherein the plurality of touch electrode blocks is electrically connected to the plurality of touch lines, respectively. ### Claim 13 (depends on 12) The display device according to claim 12, wherein the plurality of touch lines is electrically connected to one of the plurality of first touch connection lines disposed in the plurality of touch electrode blocks. ### Claim 14 (depends on 1) The display device according to claim 1, wherein an anode of the plurality of light emitting diodes is disposed only in the emissive area among the emissive area and the transmissive area. ### Claim 15 (depends on 1) The display device according to claim 1, wherein the touch electrode and a cathode of the plurality of light emitting diodes are made of a same material and are disposed spaced apart from each other. ### Claim 16 (depends on 15) The display device according to claim 15, wherein the touch electrode and the cathode are made of a transparent conductive material. ### Claim 17 (depends on 1) The display device according to claim 1, wherein a touch structure of the display device comprises the touch electrode, the plurality of first touch connection lines and the plurality of touch lines, and wherein the touch structure is formed together with other elements other than the touch structure in the display device meantime by a same process, respectively. ### Claim 18 (depends on 17) The display device according to claim 17, wherein the touch electrode is formed by a same process as a cathode of the plurality of light emitting diodes. ### Claim 19 (depends on 17) The display device according to claim 17, wherein part of each of the plurality of first touch connection lines is formed by a same process as a gate electrode of a transistor electrically connected to the plurality of light emitting diodes.