# US 10,768,733 B2 · Electronic device having touch sensor and display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,768,733 B2 - Document ID: US10768733B2 - Status: Granted - Kind: B2 - Application number: 16/189,793 - Filed: 2018-11-13 - Published: 2019-05-16 - Granted: 2020-09-08 - Earliest claimed: 2017-11-15 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: Yeonsuk Kang; Hyejin Gong - Web page: https://patentgrep.com/patent/US10768733B2 ## CPC - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 3/044: by capacitive means - H10K 59/122: Pixel-defining structures or layers, e.g. banks - H10K 59/40: OLEDs integrated with touch screens - H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers} - 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: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract An electronic device having a touch sensor, the electronic device can include a display panel including an active area and an encapsulating substrate covering the active area; a plurality of recesses in a surface of the encapsulating substrate; and a touchscreen including a lower metal layer disposed in the plurality of recesses, and a touch electrode layer electrically connected to a part of the lower metal layer and including touch driving electrodes and touch sensing electrodes separately arranged on the encapsulating substrate. ## Claims ### Claim 1 An electronic device having a touch sensor, the electronic device comprising: a display panel including an active area and an encapsulating substrate covering the active area; a plurality of recesses in a surface of the encapsulating substrate; and a touchscreen including: a lower metal layer disposed in the plurality of recesses, and a touch electrode layer electrically connected to a part of the lower metal layer and including touch driving electrodes and touch sensing electrodes separately arranged on the encapsulating substrate, wherein each of the plurality of recesses in the encapsulating substrate overlaps with a corresponding portion of a bank layer defining a plurality of sub-pixels, wherein a center of one of the plurality of recesses overlaps with a center of a corresponding portion of the bank layer, and wherein the plurality of recesses, the lower metal layer and the bank layer are configured to prevent interference between adjacent sub-pixels among the plurality of sub-pixels and funnel light out of the electronic device. ### Claim 2 (depends on 1) The electronic device according to claim 1, wherein the touch electrode layer includes a transparent material and the lower metal layer includes an opaque material. ### Claim 3 (depends on 1) The electronic device according to claim 1, wherein the touch electrode layer includes a transparent oxide material including at least one of ITO or ITZO, and wherein the lower metal layer includes a metal material having a lower resistance than the transparent oxide material of the touch electrode layer. ### Claim 4 (depends on 1) The electronic device according to claim 1, wherein a cross section of each of the plurality of recesses has a rectangular shape or a trapezoidal shape. ### Claim 5 (depends on 1) The electronic device according to claim 1, wherein each of the plurality of recesses has a trapezoidal shape in which an upper side is wider than a lower side in a cross-sectional view of each of the plurality of recesses. ### Claim 6 (depends on 1) The electronic device according to claim 1, wherein each of the plurality of recesses has an isosceles trapezoidal shape with an angle formed between the surface of the encapsulating substrate and an inclined side of each of the plurality of recess, the angle being in a range of approximately 60° to 80°. ### Claim 7 (depends on 1) The electronic device according to claim 1, wherein an imaginary line intersects one of the plurality of recesses and a corresponding portion of the bank layer. ### Claim 8 (depends on 1) The electronic device according to claim 1, wherein the touchscreen further comprises: a first insulating layer covering the lower metal layer and the touch electrode layer; a connecting electrode layer positioned on the first insulating layer and electrically connecting two adjacent touch electrode layer parts of the touch electrode layer; and a second insulating layer positioned on the first insulating layer. ### Claim 9 (depends on 8) The electronic device according to claim 8, further comprising a color filter layer positioned on the touchscreen, wherein the color filter layer is positioned on the second insulating layer. ### Claim 10 (depends on 1) The electronic device according to claim 1, further comprising: a black matrix, wherein corresponding portions of the black matrix, corresponding portions of the bank layer and corresponding portions of the lower metal layer in the plurality of recesses in the encapsulating substrate are configured to prevent mixing of different colored light between adjacent sub-pixels among the plurality of sub-pixels and funnel light out of the electronic device. ### Claim 11 A display device comprising: a display panel; an encapsulating substrate covering an active area of the display panel; a plurality of recesses in a surface of the encapsulating substrate; and a lower metal layer disposed in the plurality of recesses in the encapsulating substrate, wherein each of the plurality of recesses in the encapsulating substrate overlaps with a corresponding portion of a bank layer defining a plurality of sub-pixels of the display panel, wherein a center of one of the plurality of recesses overlaps with a center of a corresponding portion of the bank layer, and wherein the plurality of recesses, the lower metal layer and the bank layer are configured to prevent interference between adjacent sub-pixels among the plurality of sub-pixels and funnel light out of the display device. ### Claim 12 (depends on 11) The display device according to claim 11, wherein each of the plurality of recesses has a trapezoidal shape in which an upper side is wider than a lower side in a cross-sectional view of the plurality of recesses. ### Claim 13 (depends on 11) The display device according to claim 11, wherein each of the plurality of recesses has an isosceles trapezoidal shape in which an angle formed between the surface of the encapsulating substrate and an inclined side of each of the plurality of recesses is in a range of approximately 60° to 80°. ### Claim 14 (depends on 13) The display device according to claim 13, wherein the inclined sides of the plurality of recesses are configured to block light from adjacent sub-pixels from mixing and refract or reflect light from sub-pixels to an outside of the display device. ### Claim 15 (depends on 11) The display device according to claim 11, wherein the plurality of recesses are positioned corresponding to non-emission areas of the display panel. ### Claim 16 (depends on 11) The display device according to claim 11, further comprising: a touch electrode layer electrically connected to a part of the lower metal layer and including touch driving electrodes and touch sensing electrodes separately arranged on the encapsulating substrate. ### Claim 17 (depends on 16) The display device according to claim 16, wherein the lower metal layer is more opaque than the touch electrode layer, and the lower metal layer has a lower resistance than the touch electrode layer. ### Claim 18 (depends on 11) The display device according to claim 11, wherein an imaginary line intersects one of the plurality of recesses and a corresponding portion of the bank layer between two adjacent sub-pixels among the plurality of sub-pixels.