# US 10,768,491 B2 · Array substrate comprising a plurality of first pixel electrode strips and first common electrode strips arranged symmetrically with respect to a sub-area symmetry axis of a pixel unit sub-area and manufacture method thereof, 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 10,768,491 B2 - Document ID: US10768491B2 - Status: Granted - Kind: B2 - Application number: 15/757,492 - Filed: 2017-08-02 - Published: 2019-11-28 - Granted: 2020-09-08 - Earliest claimed: 2017-01-20 - Assignees: Boe Technology Group Co., Ltd.; Chongqing Boe Optoelectronics Technology Co., Ltd. - Applicants: Boe Technology Group Co., Ltd.; Chongqing Boe Optoelectronics Technology Co., Ltd. - Inventors: Peng Li; Jungho Park; Heecheol Kim; Jaikwang Kim - Web page: https://patentgrep.com/patent/US10768491B2 ## CPC - G02F 1/134309: {characterised by their geometrical arrangement} - G02F 1/1343: Electrodes {(reflective electrodes G02F1/133553)} - G02F 1/1362: Active matrix addressed cells {(G02F1/134336, G02F1/134363 take precedence)} - G02F 1/1676: Electrodes - G02F 1/134318: {having a patterned common electrode} - G02F 1/136295: {Materials; Compositions; Manufacture processes} - G02F 2201/122: having a particular pattern - G02F 2201/124: interdigital - 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 array substrate and a manufacture method thereof, a display panel and a display device. The array substrate includes pixel units. Each pixel unit includes a pixel electrode and a common electrode, which are respectively includes first pixel electrode strips and first common electrode strips that are arranged substantially in parallel in parallel in a first direction, each first common electrode strip overlaps at least one first pixel electrode strip. Each pixel unit includes at least one pixel unit sub-area, which has a sub-area symmetry axis, the first pixel electrode strip and the first common electrode strip are respectively arranged with respect to the sub-area symmetry axis symmetrically. On either side of the sub-area symmetry axis, the first common electrode strip is farther away from or closer to the sub-area symmetry axis than the at least one first pixel electrode strip that the each first common electrode strip overlaps. ## Claims ### Claim 1 An array substrate, comprising: a base substrate, and a plurality of pixel units that are arranged in an array on the base substrate, wherein each of the pixel units comprises: a pixel electrode, wherein the pixel electrode comprises a plurality of first pixel electrode strips and a plurality of first slits that are arranged between adjacent first pixel electrode strips, and the plurality of first pixel electrode strips are arranged substantially in parallel in a first direction; a common electrode that is arranged in a different layer from the pixel electrode, wherein the common electrode comprises a plurality of first common electrode strips and a plurality of second slits that are arranged between adjacent first common electrode strips, and the plurality of first common electrode strips are arranged substantially in parallel in the first direction, wherein each of the first common electrode strips overlaps at least one of the first pixel electrode strips; each pixel unit comprises at least one pixel unit sub-area, the pixel unit sub-area has a sub-area symmetry axis, the first pixel electrode strips of the pixel electrode in the pixel unit sub-area are arranged with respect to the sub-area symmetry axis symmetrically, and the first common electrode strips of the common electrode in the pixel unit sub-area are arranged with respect to the sub-area symmetry axis symmetrically, in the pixel unit sub-area, on either side of the sub-area symmetry axis, a center line, which is extended in an extending direction of each first common electrode strip, of the each first common electrode strip is farther away from or closer to the sub-area symmetry axis than a center line, which is extended in an extending direction of the at least one of the first pixel electrode strips, of the at least one of the first pixel electrode strips that the each first common electrode strip overlaps. ### Claim 2 (depends on 1) The array substrate according to claim 1, wherein the base substrate is arranged on a side of the common electrode that is away from the pixel electrode or on a side of the pixel electrode that is away from the common electrode. ### Claim 3 (depends on 1) The array substrate according to claim 1, wherein the first direction is parallel to a column direction of the plurality of pixel units that are arranged in an array. ### Claim 4 (depends on 1) The array substrate according to claim 1, wherein an extending direction of the first pixel electrode strips and an extending direction of the first common electrode strips are parallel to a row direction of the plurality of pixel units that are arranged in an array. ### Claim 5 (depends on 1) The array substrate according to claim 1, wherein each of the first common electrode strips overlaps one of the first pixel electrode strips, and in the pixel unit sub-area, on either side of the sub-area symmetry axis, each first common electrode strip is farther away from or closer to the sub-area symmetry axis than the first pixel electrode strip that the each first common electrode strip overlaps. ### Claim 6 (depends on 1) The array substrate according to claim 1, wherein the pixel electrode further comprises at least one second pixel electrode strip that electrically connects the plurality of first pixel electrode strips, and the common electrode further comprises at least one second common electrode strip that electrically connects the plurality of first common electrode strips. ### Claim 7 (depends on 1) The array substrate according to claim 1, wherein each pixel unit comprises at least two pixel unit sub-areas, and each pixel unit has a pixel area symmetry axis extending in a row direction of the pixel units, and the at least two pixel unit sub-areas are symmetrically arranged with respect to the pixel area symmetry axis. ### Claim 8 An array substrate, comprising: a base substrate, and a plurality of pixel units that are arranged in an array on the base substrate, wherein each of the pixel units comprises: a pixel electrode, wherein the pixel electrode comprises a plurality of first pixel electrode strips and a plurality of first slits that are arranged between adjacent first pixel electrode strips, and the plurality of first pixel electrode strips are arranged substantially in parallel in a first direction; a common electrode that is arranged in a different layer from the pixel electrode, wherein the common electrode comprises a plurality of first common electrode strips and a plurality of second slits that are arranged between adjacent first common electrode strips, and the plurality of first common electrode strips are arranged substantially in parallel in the first direction, wherein each of the first common electrode strips overlaps at least one of the first pixel electrode strips; each pixel unit comprises at least one pixel unit sub-area, the pixel unit sub-area has a sub-area symmetry axis, the first pixel electrode strips of the pixel electrode in the pixel unit sub-area are arranged with respect to the sub-area symmetry axis symmetrically, and the first common electrode strips of the common electrode in the pixel unit sub-area are arranged with respect to the sub-area symmetry axis symmetrically, in the pixel unit sub-area, on either side of the sub-area symmetry axis, each first common electrode strip is farther away from or closer to the sub-area symmetry axis than the at least one of the first pixel electrode strips that the each first common electrode strip overlaps; the first direction is parallel to a column direction of the plurality of pixel units that are arranged in an array; a width W1 of the first pixel electrode strip in the first direction and a width W2 of the first common electrode strip in the first direction satisfy the following condition: n*(W1+S1)=(W2+S2) wherein S1 is an interval distance of the first pixel electrode strips that are arranged on either side of the sub-area symmetry axis in the first direction, S2 is an interval distance of the first common electrode strips that are arranged on either side of the sub-area symmetry axis in the first direction, and n is an integer that is greater than or equal to two. ### Claim 9 (depends on 1) A display panel, comprising the array substrate according to claim 1. ### Claim 10 (depends on 9) A display device, comprising the display panel according to claim 9. ### Claim 11 (depends on 1) A manufacture method of the array substrate according to claim 1, comprising: providing a base substrate; forming a plurality of pixel units that are arranged in an array on the base substrate, wherein each of the pixel units comprises: a pixel electrode, wherein the pixel electrode comprises a plurality of first pixel electrode strips and a plurality of first slits that are arranged between adjacent first pixel electrode strips, and the plurality of first pixel electrode strips are arranged substantially in parallel in a first direction; a common electrode that is arranged in a different layer from the pixel electrode, wherein the common electrode comprises a plurality of first common electrode strips and a plurality of second slits that are arranged between adjacent first common electrode strips, and the plurality of first common electrode strips are arranged substantially in parallel in the first direction, wherein each of the first common electrode strips overlaps at least one of the first pixel electrode strips; each pixel unit comprises at least one pixel unit sub-area, the pixel unit sub-area has a sub-area symmetry axis, the first pixel electrode strips of the pixel electrode in the pixel unit sub-area are arranged with respect to the sub-area symmetry axis symmetrically, and the first common electrode strips of the common electrode in the pixel unit sub-area are arranged with respect to the sub-area symmetry axis symmetrically, in the pixel unit sub-area, on either side of the sub-area symmetry axis, each first common electrode strip is farther away from or closer to the sub-area symmetry axis than the at least one of the first pixel electrode strips that the each first common electrode strip overlaps. ### Claim 12 (depends on 11) The manufacture method according to claim 11, wherein the base substrate is arranged on a side of the common electrode that is away from the pixel electrode or on a side of the pixel electrode that is away from the common electrode. ### Claim 13 (depends on 11) The manufacture method according to claim 11, wherein the first direction is parallel to a column direction of the plurality of pixel units that are arranged in an array. ### Claim 14 (depends on 11) The manufacture method according to claim 11, wherein the pixel electrode further comprises at least one second pixel electrode strip that electrically connects the plurality of first pixel electrode strips, and the common electrode further comprises at least one second common electrode that electrically connects the plurality of first common electrode strips. ### Claim 15 (depends on 11) The manufacture method according to claim 11, wherein each pixel unit comprises at least two pixel unit sub-areas, and each pixel unit has a pixel area symmetry axis extending in a row direction of the pixel units, and the at least two pixel unit sub-areas are symmetrically arranged with respect to the pixel area symmetry axis. ### Claim 16 (depends on 8) The array substrate according to claim 8, wherein an extending direction of the first pixel electrode strips and an extending direction of the first common electrode strips are parallel to a row direction of the plurality of pixel units that are arranged in an array. ### Claim 17 (depends on 16) The array substrate according to claim 16, wherein each of the first common electrode strips overlaps one of the first pixel electrode strips, and in the pixel unit sub-area, on either side of the sub-area symmetry axis, each first common electrode strip is farther away from or closer to the sub-area symmetry axis than the first pixel electrode strip that the each first common electrode strip overlaps. ### Claim 18 (depends on 17) The array substrate according to claim 17, wherein the pixel electrode further comprises at least one second pixel electrode strip that electrically connects the plurality of first pixel electrode strips, and the common electrode further comprises at least one second common electrode strip that electrically connects the plurality of first common electrode strips. ### Claim 19 (depends on 18) The array substrate according to claim 18, wherein each pixel unit comprises at least two pixel unit sub-areas, and each pixel unit has a pixel area symmetry axis extending in a row direction of the pixel units, and the at least two pixel unit sub-areas are symmetrically arranged with respect to the pixel area symmetry axis. ### Claim 20 An array substrate, comprising: a base substrate, and a plurality of pixel units that are arranged in an array on the base substrate, wherein each of the pixel units comprises: a pixel electrode, wherein the pixel electrode comprises a plurality of first pixel electrode strips and a plurality of first slits that are arranged between adjacent first pixel electrode strips, and the plurality of first pixel electrode strips are arranged substantially in parallel in a first direction; a common electrode that is arranged in a different layer from the pixel electrode, wherein the common electrode comprises a plurality of first common electrode strips and a plurality of second slits that are arranged between adjacent first common electrode strips, and the plurality of first common electrode strips are arranged substantially in parallel in the first direction, wherein each of the first common electrode strips overlaps at least one of the first pixel electrode strips; each pixel unit comprises at least one pixel unit sub-area, the pixel unit sub-area has a sub-area symmetry axis, the first pixel electrode strips of the pixel electrode in the pixel unit sub-area are arranged with respect to the sub-area symmetry axis symmetrically, and the first common electrode strips of the common electrode in the pixel unit sub-area are arranged with respect to the sub-area symmetry axis symmetrically, in the pixel unit sub-area, on either side of the sub-area symmetry axis, each first common electrode strip is farther away from or closer to the sub-area symmetry axis than the at least one of the first pixel electrode strips that the each first common electrode strip overlaps; a number of the plurality of first pixel electrode strips of the pixel electrode is larger than a number of the plurality of first common electrode strips of the common electrode.