# US 10,481,717 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 10,481,717 B2 - Document ID: US10481717B2 - Status: Granted - Kind: B2 - Application number: 15/860,800 - Filed: 2018-01-03 - Published: 2018-07-19 - Granted: 2019-11-19 - Earliest claimed: 2017-01-13 - Assignees: Japan Display Inc. - Applicants: Japan Display Inc. - Inventors: Mitsuhide Miyamoto - Web page: https://patentgrep.com/patent/US10481717B2 ## CPC - 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} - 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} - H10K 59/40: OLEDs integrated with touch screens - G06F 2203/04107: Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds - 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 - H10K 59/126: Shielding, e.g. light-blocking means over the TFTs - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display device comprising: a display area, a driving circuit formed in a peripheral area, a touch sensor, overlapping the display area, having a first touch electrode extending in a first direction and a second touch electrode extending in a second direction that crosses the first direction; wherein each of the plural pixels has pixel electrode layer, the counter electrode layer over the pixel electrode layer, the display element layer formed between the pixel electrode layer and the counter electrode layer; the touch sensor is formed over the counter electrode via an insulating layer; lead wirings from the first touch electrode or from the second touch electrode extend to an area to overlap the driving circuit formed in the peripheral area; the counter electrode layer extends to cover the area that the lead wiring and the driving circuit overlap to each other in the peripheral area. ## Claims ### Claim 1 A display device comprising: a substrate, a display area where plural pixels are formed in a matrix form on the substrate, a driving circuit formed in a peripheral area outside of the display area, a touch sensor, overlapping the display area, having a first touch electrode extending in a first direction and a second touch electrode extending in a second direction that crosses the first direction, a first flexible wiring substrate to input and output signals to the driving circuit, a second flexible wiring substrate to input and output signals to the touch sensor, wherein each of the plural pixels has a pixel electrode layer, a counter electrode layer over the pixel electrode layer, a display element layer formed between the pixel electrode layer and the counter electrode layer, the touch sensor is formed over the counter electrode via an insulating layer, lead wirings from the first touch electrode or from the second touch electrode extend to an area that overlaps the driving circuit formed in the peripheral area, the counter electrode layer extends to cover the area that the lead wirings and the driving circuit overlap to each other in the peripheral area, the first flexible wiring substrate connects with first terminals without overlapping with the counter electrode layer in the peripheral area, and the second flexible wiring substrate connects with second terminals with overlapping with the counter electrode layer in the peripheral area. ### Claim 2 (depends on 1) The display device according to claim 1, wherein the insulating layer comprising, a first protective film including silicon or nitride, a second protective film including an organic substance, a third protective layer including silicon or nitride, the first protective film and the second protective film has an overlapping area outside of the second protective film, the lead wirings electrically connect with the second terminals, the second flexible wiring substrate connects with the second terminals at the overlapping area of the first protective film and the third protective film. ### Claim 3 A display device comprising: a substrate, a display area where plural pixels are formed in a matrix form on the substrate, a driving circuit formed in a peripheral area outside of the display area, a touch sensor, overlapping the display area, having a first touch electrode extending in a first direction and a second touch electrode extending in a second direction that crosses the first direction, a first flexible wiring substrate to input and output signals to the driving circuit, a second flexible wiring substrate to input and output signals to the touch sensor, wherein each of the plural pixels has a pixel electrode layer, a counter electrode layer over the pixel electrode layer, a display element layer formed between the pixel electrode layer and the counter electrode layer, the touch sensor is formed over the counter electrode via an insulating layer, lead wirings from the first touch electrode or from the second touch electrode extend to an area that overlaps the driving circuit formed in the peripheral area, the counter electrode layer extends to cover the area that the lead wirings and the driving circuit overlap to each other in the peripheral area, the first flexible wiring substrate connects with first terminals without overlapping with the counter electrode layer in the peripheral area, the second flexible wiring substrate connects with second terminals without overlapping with the counter electrode layer in the peripheral area. ### Claim 4 (depends on 3) The display device according to claim 3, wherein the insulating layer comprising, a first protective film including silicon or nitride, a second protective film including an organic substance, a third protective layer including silicon or nitride, the first protective film and the second protective film has an overlapping area outside of the second protective film, the lead wirings electrically connect with the second terminals, the second flexible wiring substrate connects with the second terminals at the overlapping area of the first protective film and the third protective film. ### Claim 5 A display device comprising: a substrate, a display area where plural pixels are formed in a matrix form on the substrate, a driving circuit formed in a peripheral area outside of the display area, a touch sensor, overlapping the display area, having a first touch electrode extending in a first direction and a second touch electrode extending in a second direction that crosses the first direction, wherein each of the plural pixels has a pixel electrode layer, a counter electrode layer over the pixel electrode layer, a display element layer formed between the pixel electrode layer and the counter electrode layer, the touch sensor is formed over the counter electrode via an insulating layer, lead wirings from the first touch electrode or from the second touch electrode extend to an area that overlaps the driving circuit formed in the peripheral area, the counter electrode layer extends to cover the area that the lead wirings and the driving circuit overlap to each other in the peripheral area, the first touch electrode and the second touch electrode are formed either by a first electrode layer that is formed on the insulating layer or by a second electrode layer that is formed on a second insulating layer formed above the first electrode layer, the first electrode layer extends to cover an area where the lead wirings and the driving circuit overlap without overlapping with the counter electrode.