# US 12,007,654 B2 · Display device and substrate of display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,007,654 B2 - Document ID: US12007654B2 - Status: Granted - Kind: B2 - Application number: 18/300,710 - Filed: 2023-04-14 - Published: 2023-08-10 - Granted: 2024-06-11 - Earliest claimed: 2018-07-13 - Assignees: Japan Display Inc. - Applicants: Japan Display Inc. - Inventors: Gen Koide; Hiroyuki Abe; Kazune Matsumura - Web page: https://patentgrep.com/patent/US12007654B2 ## CPC - G02F 1/13452: {Conductors connecting driver circuitry and terminals of panels} - G02F 1/1345: Conductors connecting electrodes to cell terminals - G02F 1/136286: {Wiring, e.g. gate line, drain line} - G09G 3/006: {Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays (testing individual LED's G01R31/2635; testing lamps G01R31/44; testing of optical features of LCD displays G02F1/1309)} - G09G 3/3648: {using an active matrix (G09G3/367 - G09G3/3696 take precedence)} - G09G 3/3677: {suitable for active matrices only} - G09G 2300/0426: Layout of electrodes and connections - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS - 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 According to an aspect, a display device includes: a first substrate having a first side and a second side opposed to the first side; a display region provided with pixels; a first partial peripheral region between the first side and the display region; a second partial peripheral region between the second side and the display region; a plurality of signal lines configured to supply signals to switching elements in the pixels; a plurality of first terminals provided in the first partial peripheral region and configured to be electrically coupled to a driver integrated circuit; a plurality of second terminals provided in the second partial peripheral region and configured to be supplied with signals for inspection; and a first coupling circuit provided between the first terminals and the display region in the first partial peripheral region and configured to switch between coupling and decoupling the signal lines and the second terminals. ## Claims ### Claim 1 A display device comprising: a driver integrated circuit; and an array substrate, wherein the array substrate including: an insulating substrate having a first side and a second side opposed to the first side; pixels in a display region between the first side and the second side; detection electrodes arranged in a matrix in the display region; sensor wiring; a first insulating film between the detection electrodes and the sensor wiring; first terminals configured to be electrically coupled to the driver integrated circuit, and located between the display region and the first side; a second terminal; and a first coupling circuit between the second side and the display region, wherein a first sensor wiring line is one of lines included in the sensor wiring, a first detection electrode is one of the detection electrodes, the first sensor wiring line is connected to the first detection electrode via a contact part in the display region, and the first sensor wiring line is connected to a first thin film transistor of the first coupling circuit. ### Claim 2 (depends on 1) The display device of claim 1, wherein the first thin film transistor is configured to switch between coupling and decoupling the second terminal and the first sensor wiring line. ### Claim 3 (depends on 2) The display device of claim 2, wherein a signal for inspection is supplied to the first sensor wiring line from the second terminal. ### Claim 4 (depends on 2) The display device of claim 2, wherein the array substrate further comprising: a third terminal; a first connection line connected to the second terminal; and a second connection line connected to the third terminal, wherein a drain of the first thin film transistor is connected to the first sensor wiring line, a source of the first thin film transistor is connected to the first connection line, and a gate of the first thin film transistor is connected to the second connection line. ### Claim 5 (depends on 4) The display device of claim 4, wherein an inspection control signal is supplied to the gate of the first thin film transistor from the further second terminal. ### Claim 6 (depends on 5) The display device of claim 5, wherein the first insulating film and the second insulating film are made of a light-transmitting resin material. ### Claim 7 (depends on 4) The display device of claim 4, wherein the second terminal and the third terminal are located between the first coupling circuit and the second side of the insulating substrate. ### Claim 8 (depends on 1) The display device of claim 1, wherein the array substrate further comprising: signal lines provided in the display region and configured to supply pixel signals to the pixels; a second insulating film covering the signal lines; and an inorganic insulating film covering the first insulating film and the detection electrodes, wherein the signal lines are between the insulating substrate and the second insulating film, the sensor wiring is between the second insulating film and the first insulating film, the first insulating film is between the second insulating film and the inorganic insulating film, and the detection electrodes are between the first insulating film and the inorganic insulating film.