# US 2017/0285852 A1 · Display device, touch detection device and electronic apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0285852 A1 - Document ID: US20170285852A1 - Status: Published application - Kind: A1 - Application number: 15/624,024 - Filed: 2017-06-15 - Published: 2017-10-05 - Earliest claimed: 2011-10-14 - Assignees: Japan Display Inc. - Applicants: Japan Display Inc. - Inventors: Hayato Kurasawa; Koji Ishizaki; Kohei Azumi - Web page: https://patentgrep.com/patent/US20170285852A1 ## CPC - G06F 3/0416: {Control or interface arrangements specially adapted for digitisers} - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 3/044: by capacitive means - 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} - G06T 5/20: using local operators - G09G 3/2074: {using sub-pixels} - G09G 3/3655: {Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors} - G09G 3/3696: {Generation of voltages supplied to electrode drivers} - G06F 2203/04103: Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices - G06F 2203/04107: Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds - G09G 2300/0426: Layout of electrodes and connections - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) ## Abstract A display device includes: a display layer; plural first electrodes formed to be arranged above the display layer; a shield electrode formed apart from the plural first electrodes so as to surround the whole plural first electrodes along an arrangement surface; an insulating layer; and a semiconductive layer formed opposite to the first electrodes and the shield electrode so as to sandwich the insulating layer, wherein the difference between an average potential of the first electrodes and an average potential of the shield electrode is equal to or less than 0.5V. ## Claims ### Claim 1 A display device comprising: a display layer; a transparent substrate; plural touch detection electrodes arranged on the transparent substrate; a shield electrode arranged on the transparent substrate, the shield electrode being apart from the plural touch detection electrodes; an insulating layer arranged on the plural touch detection electrodes and the shield electrode; and a semiconductive layer arranged on the insulating layer, wherein the insulating layer is arranged between the semiconductive layer and a layer including the plural touch detection electrodes and the shield electrode. ### Claim 2 (depends on 1) The display device according to claim 1, wherein the shield electrode is configured to be supplied with a DC voltage. ### Claim 3 (depends on 2) The display device according to claim 2, wherein the shield electrode is configured to be constantly supplied with a DC voltage. ### Claim 4 (depends on 2) The display device according to claim 2, wherein the shield electrode is configured to be supplied with a DC voltage for a predetermined period before or after a touch detection signal being output from the plural touch detection electrodes makes transition. ### Claim 5 (depends on 1) The display device according to claim 1, wherein the difference between an average potential of the plural touch detection electrodes and an average potential of the shield electrode is equal to or less than 0.5V. ### Claim 6 (depends on 1) The display device according to claim 1, wherein an average potential of the shield electrode is equal to or higher than an average potential of the touch detection electrodes. ### Claim 7 (depends on 1) The display device according to claim 1, wherein the semiconductive layer have resistivity in a range of from 10 [Ω·m] to 1013 [Ω·m]. ### Claim 8 (depends on 1) The display device according to claim 1, wherein the semiconductive layer is a polarizing plate. ### Claim 9 (depends on 1) The display device according to claim 1, wherein the insulating layer is an adhesive layer. ### Claim 10 A display device comprising: a display layer; a transparent substrate; plural touch detection electrodes arranged on the transparent substrate; plural drive electrodes opposed to the plural touch detection electrodes; wiring coupling the plural drive electrodes and plural connecting pads; a shield electrode arranged on the transparent substrate, the shield electrode being apart from the plural touch detection electrodes; and an insulating layer arranged on the plural touch detection electrodes and the shield electrode, wherein the shield electrode is arranged such that the shield electrode does not overlap the wiring in a plane view. ### Claim 11 (depends on 10) The display device according to claim 10, wherein the plural drive electrodes and the plural touch detection electrodes are arranged on the transparent substrate, and the insulating layer is arranged to cover the touch detection electrodes, the shield electrode, and the drive electrodes. ### Claim 12 (depends on 10) The display device according to claim 10, wherein the plural connecting pads are configured to be arranged in a peripheral area along one side of the transparent substrate, and the shield electrode is configured to be arranged along sides other than the one side of the transparent substrate. ### Claim 13 (depends on 10) The display device according to claim 10, wherein the shield electrode is configured to be supplied with a DC voltage. ### Claim 14 (depends on 13) The display device according to claim 13, wherein the shield electrode is configured to be constantly supplied with a DC voltage. ### Claim 15 (depends on 13) The display device according to claim 13, wherein the shield electrode is configured to be supplied with a DC voltage for a predetermined period before or after a touch detection signal being output from the plural touch detection electrodes makes transition. ### Claim 16 (depends on 10) The display device according to claim 10, wherein the difference between an average potential of the plural touch detection electrodes and an average potential of the shield electrode is equal to or less than 0.5V. ### Claim 17 (depends on 10) The display device according to claim 10, wherein an average potential of the shield electrode is equal to or higher than an average potential of the plural touch detection electrodes. ### Claim 18 A touch detection device comprising: a transparent substrate; plural touch detection electrodes arranged on the transparent substrate; a shield electrode arranged on the transparent substrate, the shield electrode being apart from the plural touch detection electrodes; an insulating layer arranged on the plural touch detection electrodes and the shield electrode; and a semiconductive layer arranged on the insulating layer, wherein the insulating layer is arranged between the semiconductive layer and a layer including the plural touch detection electrodes and the shield electrode. ### Claim 19 A touch detection device comprising: a transparent substrate; plural touch detection electrodes arranged on the transparent substrate; plural drive electrodes opposed to the plural touch detection electrodes; wiring coupling the plural drive electrodes and plural connecting pads; a shield electrode arranged on the transparent substrate, the shield electrode being apart from the plural touch detection electrodes; and an insulating layer arranged on the plural touch detection electrodes and the shield electrode, wherein the shield electrode is arranged such that the shield electrode does not overlap the wiring in a plane view.