# US 12,112,004 B2 · Active matrix substrate, display 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 12,112,004 B2 - Document ID: US12112004B2 - Status: Granted - Kind: B2 - Application number: 17/972,490 - Filed: 2022-10-24 - Published: 2023-04-27 - Granted: 2024-10-08 - Earliest claimed: 2021-10-26 - Assignees: Sharp Display Technology Corporation - Applicants: Sharp Display Technology Corporation - Inventors: Yohsuke Fujikawa - Web page: https://patentgrep.com/patent/US12112004B2 ## CPC - G06F 3/0443: {using a single layer of sensing electrodes} - G02F 1/136204: {Arrangements to prevent high voltage or static electricity failures} - G02F 1/136286: {Wiring, e.g. gate line, drain line} - G02F 1/1368: in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - G02F 1/13338: {Input devices, e.g. touch panels} - G02F 1/133388: {with constructional differences between the display region and the peripheral region} - G02F 1/13452: {Conductors connecting driver circuitry and terminals of panels} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - 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 ## Abstract An active matrix substrate includes a touch electrode disposed in a pixel region, a frame touch electrode disposed in a frame region, and a dummy array segment disposed in the frame region. The frame region includes a first dummy region, provided in a position adjacent to the pixel region, where the frame touch electrode is disposed and a second dummy region provided in a position opposite to the pixel region across the first dummy region. In the second dummy region, the frame touch electrode is not disposed, but the dummy array segment is disposed. ## Claims ### Claim 1 An active matrix substrate comprising: a plurality of scanning lines; a plurality of data lines disposed to intersect the plurality of scanning lines; a plurality of thin-film transistors disposed separately in each of a plurality of pixels demarcated by the plurality of scanning lines and the plurality of data lines; and a plurality of pixel electrodes connected to the plurality of thin-film transistors, wherein the active matrix substrate has, in a plan view, a pixel region where the plurality of pixel electrodes is provided and a frame region surrounding the pixel region, the active matrix substrate further comprises: a touch electrode disposed to face the plurality of pixel electrodes in the pixel region, a frame touch electrode formed at a first layer in the frame region and not electrically connected to the touch electrode, and a semiconductor, formed at a second layer different from the first layer in the frame region, that intersects at least one of the plurality of scanning lines connecting at least one of the plurality of pixels, or that intersects a gate electrode branching off from the at least one of the plurality of scanning lines, and the frame region comprises: a first region, provided in a position adjacent to the pixel region, where the frame touch electrode is disposed, and a second region, provided in a position opposite to the pixel region across the first region, where the frame touch electrode is not disposed but the semiconductor is disposed. ### Claim 2 (depends on 1) The active matrix substrate according to claim 1, wherein the semiconductor includes at least one of a dummy thin-film transistor formed of a material that is identical to a material of which the plurality of thin-film transistors is formed and formed at a layer that is identical to a layer at which the plurality of thin-film transistors is formed and a dummy pixel electrode formed of a material that is identical to a material of which the plurality of pixel electrodes is formed and formed at a layer that is identical to a layer at which the plurality of pixel electrodes is formed. ### Claim 3 (depends on 1) The active matrix substrate according to claim 1, wherein in the first region, at least a part of the frame touch electrode overlaps a part of the semiconductor in the plan view. ### Claim 4 (depends on 1) The active matrix substrate according to claim 1, wherein the frame touch electrode surrounds the pixel region in the plan view. ### Claim 5 (depends on 1) The active matrix substrate according to claim 1, wherein an end side of the touch electrode adjacent the first region includes a bend curved in the plan view, and an end side of the frame touch electrode adjacent the pixel region includes, in a position opposite to the bend, a portion having a shape taken along the bend. ### Claim 6 (depends on 1) The active matrix substrate according to claim 1, wherein the touch electrode includes a plurality of slits, and the frame touch electrode has a hole or a notch formed in a portion of the frame touch electrode adjacent the pixel region. ### Claim 7 (depends on 6) The active matrix substrate according to claim 6, wherein the hole or the notch is identical in shape, in the plan view, to at least one of the plurality of slits. ### Claim 8 (depends on 1) A display panel comprising: the active matrix substrate according to claim 1; and a counter substrate disposed to face the active matrix substrate. ### Claim 9 (depends on 8) A display device comprising: the display panel according to claim 8; and a control circuit that controls the display panel. ### Claim 10 (depends on 1) The active matrix substrate according to claim 1, wherein an end side of the frame touch electrode adjacent the pixel region is positioned between the pixel region and the semiconductor in the frame region. ### Claim 11 (depends on 1) The active matrix substrate according to claim 1, wherein the frame touch electrode includes a projecting portion projecting toward the pixel region.