# US 10,310,691 B2 · Self-capacitance touch structure having touch electrodes with side wing portions and display device thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,310,691 B2 - Document ID: US10310691B2 - Status: Granted - Kind: B2 - Application number: 15/674,413 - Filed: 2017-08-10 - Published: 2018-03-15 - Granted: 2019-06-04 - Earliest claimed: 2016-09-09 - Assignees: Boe Technology Group Co., Ltd.; Hefei Boe Optoelectronics Technology Co., Ltd. - Applicants: Boe Technology Group Co., Ltd.; Hefei Boe Optoelectronics Technology Co., Ltd. - Inventors: Xun Pu; Zhifu Dong; Hongmin Li - Web page: https://patentgrep.com/patent/US10310691B2 ## CPC - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 3/0443: {using a single layer of sensing electrodes} - G06F 3/0445: {using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer} - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - G06F 3/0448: {Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract The present disclosure provides a self-capacitance touch structure, a touch panel and a display device. The self-capacitance touch structure comprising a plurality of self-capacitance touch electrodes arranged in an array, the self-capacitance touch electrode comprising a main body portion and a side wing portion protruding from at least one side of the main body portion, wherein at least one recess is formed between the side wing portion and the main body portion, the side wing portion of at least one self-capacitance touch electrode in at least one row extends into the recess of a self-capacitance touch electrode, adjacent to the at least one self-capacitance touch electrode, in another row. ## Claims ### Claim 1 A self-capacitance touch structure, comprising a plurality of self-capacitance touch electrodes arranged in an array, each self-capacitance touch electrode comprising a main body portion having a strip shape comprising two opposite long sides extending in a first direction, and a first side wing portion and a second side wing portion symmetrically disposed at the two opposite long sides of the main body portion, wherein for each self-capacitance touch electrode, a recess is formed between each side wing portion and the main body portion; the self-capacitance touch electrodes in a same row are spaced from each other, the self-capacitance touch electrodes in two adjacent rows are arranged in a staggered manner, the main body portion of at least one self-capacitance touch electrode in at least one row extends into a gap between two adjacent self-capacitance touch electrodes in another row; the first side wing portion of at least one self-capacitance touch electrode in at least one row extends into the recess between the second side wing portion and the main body portion of the self-capacitance touch electrode, adjacent to the at least one self-capacitance touch electrode, in another row; and the second side wing portion of at least one self-capacitance touch electrode in at least one row extends into the recess between the first side wing portion and the main body portion of the self-capacitance touch electrode, adjacent to the at least one self-capacitance touch electrode, in another row. ### Claim 2 (depends on 1) The self-capacitance touch structure according to claim 1, wherein for each self-capacitance touch electrode, at least two recesses are formed between each side wing portion and the main body portion, and the at least two recesses comprise a first recess and a second recess opposite to the first recess; the first recess of at least one self-capacitance touch electrode in at least one row is provided therein with a respective side wing portion of another self-capacitance touch electrode positioned at a side of the at least one self-capacitance touch electrode close to the first recess, the second recess of at least one self-capacitance touch electrode in at least one row is provided therein with a respective side wing portion of another self-capacitance touch electrode positioned at a side of the at least one self-capacitance touch electrode close to the second recess. ### Claim 3 (depends on 1) The self-capacitance touch structure according to claim 1, wherein, for each self-capacitance touch electrode, each of the first side wing portion and the second side wing portion comprises an oblique side which is connected onto a respective one of the long sides of the main body portion and is obliquely disposed with respect to the respective long side of the main body portion, wherein the recess between the first side wing portion and the main body is formed between the oblique side of the first side wing portion and one of the long sides of the main body portion, and wherein the recess between the second side wing portion and the main body is formed between the oblique side of the second side wing portion and the other long side of the main body portion. ### Claim 4 (depends on 1) The self-capacitance touch structure according to claim 1, wherein, for each self-capacitance touch electrode, each of the first side wing portion and the second side wing portion comprises two oblique sides which are connected on a same long side of the main body portion and are disposed opposite to each other, wherein two recesses are formed between the two oblique sides and the long side of the main body portion respectively. ### Claim 5 (depends on 1) The self-capacitance touch structure according to claim 1, wherein, for each self-capacitance touch electrode, each of the first side wing portion and the second side wing portion is of a shape of a trapezoid comprising an upper side, a lower side and oblique sides connected between the upper side and the lower side, wherein the upper side is overlapped with a respective long side of the main body portion. ### Claim 6 (depends on 5) The self-capacitance touch structure according to claim 5, wherein, for each self-capacitance touch electrode, each of the first side wing portion and the second side wing portion is of a shape of an isosceles trapezoid. ### Claim 7 (depends on 5) The self-capacitance touch structure according to claim 5, wherein, for each self-capacitance touch electrode, a width of the main body portion in a second direction is in a range of 2.5 mm˜4.5 mm, and the second direction is perpendicular to the first direction; a length of the upper side of each trapezoid in the first direction is in a range of 3 mm˜5 mm; a length of the lower side of each trapezoid in the first direction is in a range of 16 mm˜22 mm; and a distance between the upper side and the lower side of each trapezoid in the second direction is in a range of 8 mm˜11 mm. ### Claim 8 (depends on 1) The self-capacitance touch structure according to claim 1, further comprising a touch detection chip connected with the plurality of self-capacitance touch electrodes, wherein the touch detection chip is configured to determine a touch position by detecting a change in a capacitance value of each self-capacitance touch electrode. ### Claim 9 (depends on 8) The self-capacitance touch structure according to claim 8, wherein each of the plurality of self-capacitance touch electrodes is connected with the touch detection chip by at least one wire, and the self-capacitance touch electrode and the wire are disposed in different layers. ### Claim 10 A touch panel, comprising a self-capacitance touch structure, the self-capacitance touch structure comprising a plurality of self-capacitance touch electrodes arranged in an array, each self-capacitance touch electrode comprising a main body portion having a strip shape comprising two opposite long sides extending in a first direction, and a first side wing portion and a second side wing portion symmetrically disposed at the two opposite long sides of the main body portion of the main body portion, wherein for each self-capacitance touch electrode, a recess is formed between each side wing portion and the main body portion; the self-capacitance touch electrodes in a same row are spaced from each other, the self-capacitance touch electrodes in two adjacent rows are arranged in a staggered manner, the main body portion of at least one self-capacitance touch electrode in at least one row extends into a gap between two adjacent self-capacitance touch electrodes in another row; the first side wing portion of at least one self-capacitance touch electrode in at least one row extends into the recess between the second side wing portion and the main body portion of the self-capacitance touch electrode, adjacent to the at least one self-capacitance touch electrode, in another row; and the second side wing portion of at least one self-capacitance touch electrode in at least one row extends into the recess between the first side wing portion and the main body portion of the self-capacitance touch electrode, adjacent to the at least one self-capacitance touch electrode, in another row. ### Claim 11 (depends on 10) The touch panel according to claim 10, further comprising a first substrate and a second substrate disposed opposite to the first substrate, wherein the self-capacitance touch structure is disposed on the second substrate, and a common electrode layer is disposed on the second substrate, and the plurality of self-capacitance touch electrodes is disposed in a same layer as the common electrode layer. ### Claim 12 (depends on 10) The touch panel according to claim 10, wherein for each self-capacitance touch electrode, at least two recesses are formed between each side wing portion and the main body portion, and the at least two recesses comprise a first recess and a second recess opposite to the first recess; the first recess of at least one self-capacitance touch electrode in at least one row is provided therein with a respective side wing portion of another self-capacitance touch electrode positioned at a side of the at least one self-capacitance touch electrode close to the first recess; and the second recess of at least one self-capacitance touch electrode in at least one row is provided therein with a respective side wing portion of another self-capacitance touch electrode positioned at a side of the at least one self-capacitance touch electrode close to the second recess. ### Claim 13 (depends on 10) The touch panel according to claim 10, wherein, for each self-capacitance touch electrode, each of the first side wing portion and the second side wing portion comprises an oblique side which is connected onto a respective one of the long sides of the main body portion and is obliquely disposed with respect to the respective long side of the main body portion, wherein the recess between the first side wing portion and the main body is formed between the oblique side of the first side wing portion and one of the long sides of the main body portion, and wherein the recess between the second side wing portion and the main body is formed between the oblique side of the second side wing portion and the other long side of the main body portion. ### Claim 14 (depends on 10) The touch panel according to claim 10, wherein, for each self-capacitance touch electrode, each of the first side wing portion and the second side wing portion comprises two oblique sides which are connected on a same long side of the main body portion and are disposed opposite to each other, wherein two recesses are formed between the two oblique sides and the long side of the main body portion respectively. ### Claim 15 (depends on 10) The touch panel according to claim 10, wherein, for each self-capacitance touch electrode, each of the first side wing portion and the second side wing portion is of a shape of a trapezoid comprising an upper side, a lower side and oblique sides connected between the upper side and the lower side, wherein the upper side is overlapped with the long side of the main body portion. ### Claim 16 (depends on 15) The touch panel according to claim 15, wherein, for each self-capacitance touch electrode, each of the first side wing portion and the second side wing portion is of a shape of an isosceles trapezoid. ### Claim 17 A display device, comprising a touch screen comprising a self-capacitance touch structure, the self-capacitance touch structure comprising a plurality of self-capacitance touch electrodes arranged in an array, each self-capacitance touch electrode comprising a main body portion having a strip shape comprising two opposite long sides extending in a first direction, and a first side wing portion and a second side wing portion symmetrically disposed at the two opposite long sides of the main body portion, wherein for each self-capacitance touch electrode, a recess is formed between each side wing portion and the main body portion; the self-capacitance touch electrodes in a same row are spaced from each other, the self-capacitance touch electrodes in two adjacent rows are arranged in a staggered manner, the main body portion of at least one self-capacitance touch electrode in at least one row extends into a gap between two adjacent self-capacitance touch electrodes in another row; the first side wing portion of at least one self-capacitance touch electrode in at least one row extends into the recess between the second side wing portion and the main body portion of the self-capacitance touch electrode, adjacent to the at least one self-capacitance touch electrode, in another row; and the second side wing portion of at least one self-capacitance touch electrode in at least one row extends into the recess between the first side wing portion and the main body portion of the self-capacitance touch electrode, adjacent to the at least one self-capacitance touch electrode, in another row. ### Claim 18 (depends on 17) The display device according to claim 17, wherein the touch panel further comprises a first substrate and a second substrate disposed opposite to the first substrate, the self-capacitance touch structure is disposed on the second substrate, and a common electrode layer is disposed on the second substrate, and the plurality of self-capacitance touch electrodes is disposed in a same layer as the common electrode layer.