# US 11,112,894 B2 · Method for manufacturing touch panel, touch panel 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 11,112,894 B2 - Document ID: US11112894B2 - Status: Granted - Kind: B2 - Application number: 16/080,267 - Filed: 2018-04-19 - Published: 2021-03-18 - Granted: 2021-09-07 - Earliest claimed: 2018-03-20 - Assignees: Wuhan China Star Optoelectronics; Semiconductor Display Technology Co., Ltd. - Applicants: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. - Inventors: Jian Ye - Web page: https://patentgrep.com/patent/US11112894B2 ## 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 3/044: by capacitive means - G06F 3/0445: {using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer} - G06F 2203/04102: Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper - 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 The invention provides a method for manufacturing touch panel, comprising: providing a substrate, and forming a first metal layer on the substrate; patterning the first metal layer to form a first electrode and a first pin, electrically interconnected; forming an insulating layer on the first electrode, and forming an opening in the insulating layer to expose the first pin; forming a second metal layer on the insulating layer, patterning the second metal layer to form a second electrode and a second pin, electrically interconnected; the first electrode being disposed opposite to the second electrode, the second pin being formed inside the opening, the first and second pins being arranged in a zigzag manner. The invention also provides a touch panel and a display device. The first and second electrodes form capacitive touch panel with touch function. The metal-made first and second electrodes are bendable and suitable for flexible display device. ## Claims ### Claim 1 A touch panel, comprising: a substrate; a first electrode and a first pin, disposed on the substrate, the first electrode and the first pin being electrically interconnected; an insulating layer disposed on the first electrode, the insulating layer being disposed with an opening to expose the first pin; a second electrode and a second pin, disposed on the insulating layer, the second electrode and the second pin being electrically interconnected, the first electrode being disposed opposite to the second electrode, the second pin being disposed inside the opening, and the first pin and the second pin being arranged in a zigzag manner, wherein the first electrode and the first pin are formed of a first same layer of material and are integrally connected as a one-piece structure and the second electrode and the second pin are formed of a second same layer of material that is spaced from the first same layer of material of the first electrode and the first pin and are integrally connected a one-piece structure; and wherein the insulating layer has a portion located in the spacing between the first and second same layers of material, such that the first electrode and the second electrode are respectively located on two opposite sides of the insulating layer and the insulating layer is sandwiched between and in direct contact with the first and second electrodes. ### Claim 2 (depends on 1) The touch panel as claimed in claim 1, wherein the touch panel further comprises a first lead wire and a second lead wire, the first lead wire connects the first electrode to the first pin; the second lead wire connects the second electrode to the second pin, and the second lead wire passes through the opening to connect with the second pin. ### Claim 3 (depends on 1) The touch panel as claimed in claim 1, wherein the number of the first electrodes and the number of the first pins are both a plurality, each first electrode is electrically connected to a corresponding first pin; the number of the second electrodes and the number of the second pins are both a plurality, each second electrode is electrically connected to a corresponding second pin. ### Claim 4 (depends on 3) The touch panel as claimed in claim 3, wherein the touch panel further comprises a flexible circuit board, the flexible circuit board is fixed to and connected to the first pins and the second pins. ### Claim 5 (depends on 4) The touch panel as claimed in claim 4, wherein a plurality of conductive touch strips are disposed at one end of the flexible circuit board, each conductive strip is electrically connected to a corresponding first pin or a corresponding second pin. ### Claim 6 (depends on 1) The touch panel as claimed in claim 1, wherein the openings comprise a first opening and a second opening; the first opening is located correspondingly to the first pin, the first opening is for exposing the first pin, the second opening is located correspondingly to the second pin, and the second pin is for extending the second lead wire and exposing the second pin.