# US 2017/0255306 A1 · In-cell touch liquid crystal panels and the array substrates thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0255306 A1 - Document ID: US20170255306A1 - Status: Published application - Kind: A1 - Application number: 14/891,371 - Filed: 2015-10-12 - Published: 2017-09-07 - Earliest claimed: 2015-09-25 - Assignees: Shenzhen China Star Optelectronics Technology Co., Ltd.; Wuhan China Star Optoelectronics Technology Co., Ltd. - Applicants: Shenzhen China Star Optoelectronics Technology Co., Ltd.; Wuhan China Star Optoelectronics Technology Co., Ltd. - Inventors: Jianxing XIE; Yao-li HUANG; Chun-hung HUANG - Web page: https://patentgrep.com/patent/US20170255306A1 ## CPC - G06F 3/0412: {Digitisers structurally integrated in a display} - G02F 1/133345: {Insulating layers (G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take precedence)} - G02F 1/13338: {Input devices, e.g. touch panels} - G02F 1/133514: {Colour filters} - G02F 1/134309: {characterised by their geometrical arrangement} - G02F 1/136227: {Through-hole connection of the pixel electrode to the active element through an insulation layer} - 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 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads} - G06F 3/044: by capacitive means - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - G02F 1/133302: {Rigid substrates, e.g. inorganic substrates} - G02F 1/134372: {for fringe field switching [FFS] where the common electrode is not patterned} - G02F 1/136295: {Materials; Compositions; Manufacture processes} - G02F 2201/121: common or background - G02F 2201/123: pixel - 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: 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 in-cell touch liquid crystal panel and the array substrate are disclosed. The array substrate includes a glass substrate and a TFT, a common electrode layer, and a pixel electrode formed on the glass substrate. The common electrode layer includes a plurality of bar-shaped touch driving electrodes insulated from each other. Each of the touch driving electrodes includes a plurality of suspended electrodes. A second insulation layer and a metal wiring layer are arranged between the common electrode layer and the passivation layer in sequence. The metal wiring layer includes a plurality of driving electrode wirings, a plurality of suspended electrode wirings, and a plurality of touch sensing electrodes. Each of the driving electrode wirings electrically connects to one of the touch driving electrodes via the through holes on the insulation layer, and each of the suspended electrode wirings electrically connects to the suspended electrodes arranged along the second direction. ## Claims ### Claim 1 An array substrate of in-cell touch liquid crystal panels, comprising: a glass substrate and at least one TFT, a common electrode layer, and at least one pixel electrode formed on the glass substrate in turn, a first insulation layer is arranged between the common electrode layer and the TFT, a passivation layer is arranged between the common electrode layer and the pixel electrode, and the pixel electrode electrically connects with the TFT via a first through hole; the common electrode layer comprises a plurality of bar-shaped touch driving electrodes insulated from each other, the touch driving electrodes extend along a first direction, each of the touch driving electrodes comprises a plurality of suspended electrodes arranged along the first direction, and the suspended electrodes are insulated from the touch driving electrode; a second insulation layer and a metal wiring layer are arranged between the common electrode layer and the passivation layer sequence, wherein the second insulation layer comprises a second through hole and a plurality of third through holes corresponding to each of the touch driving electrodes, each of the third through holes corresponds to one of the suspended electrodes within each of the touch driving electrodes, the metal wiring layer comprises a plurality of driving electrode wirings, a plurality of suspended electrode wirings, and a plurality of touch sensing electrodes extending along the second direction, and the driving electrode wirings, the suspended electrode wirings, the touch sensing electrodes are insulated from each other; the driving electrode wirings correspond to the touch driving electrodes one by one, each of the driving electrode wirings electrically connects to one of the touch driving electrodes via the second through hole, and each of the suspended electrode wirings electrically connects to the suspended electrodes arranged along the second direction via the third through hole; and wherein the first direction is orthogonal to the second direction. ### Claim 2 The array substrate as claimed in claim I., wherein the driving electrode wirings span over all of the touch driving electrodes along the second direction, and a hollowed area is formed by hollowing out the projected area of the touch driving electrodes that have not electrically connected with the driving electrode wirings. ### Claim 3 (depends on 2) The array substrate as claimed in claim 2, wherein the driving electrode wirings, the suspended electrode wirings, and the touch sensing electrodes are arranged within a non-display area of the array substrate. ### Claim 4 (depends on 2) The array substrate as claimed in claim 2, wherein a width of the hollowed area is not smaller than the width of the driving electrode wirings. ### Claim 5 (depends on 3) The array substrate as claimed in claim 3, wherein a width of the hollowed area is not smaller than the width of the driving electrode wirings. ### Claim 6 (depends on 1) The array substrate as claimed in claim 1, wherein the second through holes and/or the third through hole comprise a plurality of via holes. ### Claim 7 The array substrate as claimed in claim wherein each of the driving electrode wirings comprises a plurality of electrically connected metal wirings, and each of the suspended electrode wirings comprises a plurality of electrically connected metal wirings. ### Claim 8 (depends on 7) The array substrate as claimed in claim 7, wherein a larger number of metal wirings is configured with the driving electrode wirings that are located farther from a signal input end. ### Claim 9 (depends on 1) The array substrate as claimed in claim 1, wherein within the second insulation layer, n number of the third through holes are configured to be corresponding to each of the suspended electrodes, and the suspended electrodes arranged in one column along the second direction is configured with n number of the suspended electrode wirings over the top of the suspended electrodes, and n is an integer larger than one. ### Claim 10 (depends on 2) The array substrate as claimed in claim 2, wherein within the second insulation layer, n number of the third through holes are configured to be corresponding to each of the suspended electrodes, and the suspended electrodes arranged in one column along the second direction is configured with n number of the suspended electrode wirings over the top of the suspended electrodes, and n is an integer larger than one. ### Claim 11 An in-cell touch liquid crystal panel, comprising: a TFT array substrate, a color film substrate opposite to the TFT array substrate, and a liquid crystal layer between the TFT array substrate and the color film substrate, the TFT array substrate comprises: a glass substrate and at least one TFT, a common electrode layer, and at least one pixel electrode formed on the glass substrate in turn, a first insulation layer is arranged between the common electrode layer and the TFT, a passivation layer is arranged between the common electrode layer and the pixel electrode, and the pixel electrode electrically connects with the TFT via a first through hole; the common electrode layer comprises a plurality of bar-shaped touch driving electrodes insulated from each other, the touch driving electrodes extend along a first direction, each of the touch driving electrodes comprises a plurality of suspended electrodes arranged along the first direction, and the suspended electrodes are insulated from the touch driving electrode; a second insulation layer and a metal wiring layer are arranged between the common electrode layer and the passivation layer in sequence, wherein the second insulation layer comprises a second through hole and a plurality of third through holes corresponding to each of the touch driving electrodes, each of the third through holes corresponds to one of the suspended electrodes within each of the touch driving electrodes, the metal wiring layer comprises a plurality of driving electrode wirings, a plurality of suspended electrode wirings, and a plurality of touch sensing electrodes extending along the second direction, and the driving electrode wirings, the suspended electrode wirings, the touch sensing electrodes are insulated from each other; the driving electrode wirings correspond to the touch driving electrodes one by one, each of the driving electrode wirings electrically connects to one of the touch driving electrodes via the second through hole, and each of the suspended electrode wirings electrically connects to the suspended electrodes arranged along the second direction via the third through hole; and wherein the first direction is orthogonal to the second direction. ### Claim 12 (depends on 11) The in-cell touch liquid crystal panel as claimed in claim 11, wherein the driving electrode wirings span over all of the touch driving electrodes along the second direction, and a hollowed area is formed by hollowing out the projected area of the touch driving electrodes that have not electrically connected with the driving electrode wirings. ### Claim 13 (depends on 12) The in-cell touch liquid crystal panel as claimed in claim 12, wherein the driving electrode wirings, the suspended electrode wirings, and the touch sensing electrodes are arranged within a non-display area of the array substrate. ### Claim 14 (depends on 12) The in-cell touch liquid crystal panel as claimed in claim 12, wherein a width of the hollowed area is not smaller than the width of the driving electrode wirings. ### Claim 15 (depends on 13) The in-cell touch liquid crystal panel as claimed in claim 13, wherein a width of the hollowed area is not smaller than the width of the driving electrode wirings. ### Claim 16 (depends on 11) The in-cell touch liquid crystal panel as claimed in claim 11 wherein the second through holes and/or the third through hole comprise a plurality of via holes. ### Claim 17 (depends on 11) The in-cell touch liquid crystal panel as claimed in claim 11, wherein each of the driving electrode wirings comprises a plurality of electrically connected metal wirings, and each of the suspended electrode wirings comprises a plurality of electrically connected metal wirings. ### Claim 18 (depends on 17) The in-cell touch liquid crystal panel as claimed in claim 17, wherein a larger number of metal wirings is configured with the driving electrode wirings that are located farther from a signal input end. ### Claim 19 (depends on 11) The in-cell touch liquid crystal panel as claimed in claim 11, wherein within the second insulation layer, n number of the third through holes are configured to be corresponding to each of the suspended electrodes, and the suspended electrodes arranged in one column along the second direction is configured with n number of the suspended electrode wirings over the top of the suspended electrodes, and n is an integer larger than one. ### Claim 20 (depends on 12) The in-cell touch liquid crystal panel as claimed in claim 12, wherein within the second insulation layer, n number of the third through holes are configured to be corresponding to each of the suspended electrodes, and the suspended electrodes arranged in one column along the second direction is configured with n number of the suspended electrode wirings over the top of the suspended electrodes, and n is an integer larger than one.