# US 11,442,588 B2 · Touch display device and touchscreen panel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,442,588 B2 - Document ID: US11442588B2 - Status: Granted - Kind: B2 - Application number: 17/316,609 - Filed: 2021-05-10 - Published: 2021-08-26 - Granted: 2022-09-13 - Earliest claimed: 2017-06-01 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: KwangJo Hwang; DeukSu Lee; JaeGyun Lee; Yangsik Lee - Web page: https://patentgrep.com/patent/US11442588B2 ## CPC - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column 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 3/0448: {Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality} - G06F 2203/04112: Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A touch display device and a touchscreen panel. Even in the case in which touch electrodes have different sizes or shapes or a located in different positions, a difference in capacitance is not formed among the touch electrodes. High touch sensitivity can be obtained. The touch display device comprises a plurality of touch electrodes, wherein a first touch electrode of the plurality of touch electrodes occupies a first area and comprises first mesh-shaped electrode metal. The touch display device comprises first dummy metal in a same layer as the first mesh-shaped electrode metal and in the first area occupied by the first touch electrode, the first dummy metal being electrically disconnected from the first mesh-shaped electrode metal. ## Claims ### Claim 1 A touch display device comprising: a plurality of touch electrodes; a plurality of touch lines electrically connected with all or part of the plurality of touch electrodes; and a first bridge pattern electrically connecting two adjacent touch electrodes of the plurality of touch electrodes in a first direction, wherein the plurality of touch lines and the plurality of touch electrodes are disposed on the same layer or on different layers, wherein the first bridge pattern is disposed on a layer different from the plurality of touch electrodes, and wherein among the plurality of touch electrodes, an edge of a touch electrode positioned in a corner region has a non-straight line shape and a non-vertical shape. ### Claim 2 (depends on 1) The touch display device of claim 1, wherein among the plurality of touch electrodes, two touch electrodes adjacent in a second direction different from the first direction are integrated. ### Claim 3 (depends on 2) The touch display device of claim 2, wherein a boundary portion of two touch electrodes adjacent in the second direction different from the first direction among the plurality of touch electrodes is insulated from the first bridge pattern and intersects the first bridge pattern. ### Claim 4 (depends on 1) The touch display device of claim 1, further comprising a cathode layer and an encapsulation layer positioned on the cathode layer, wherein the plurality of touch electrodes are located on the encapsulation layer. ### Claim 5 (depends on 4) The touch display device of claim 4, further comprising color filters positioned on the encapsulation layer. ### Claim 6 (depends on 5) The touch display device of claim 5, wherein each of the plurality of touch electrodes includes a plurality of open areas, and each of the plurality of open areas overlaps one or more color filters. ### Claim 7 (depends on 1) The touch display device of claim 1, wherein the plurality of touch lines and the first bridge pattern are disposed on the same layer. ### Claim 8 (depends on 1) The touch display device of claim 1, wherein each of the plurality of touch electrodes is a mesh type electrode metal. ### Claim 9 (depends on 1) The touch display device of claim 1, further comprising at least one dummy metal formed in an area occupied by each of all or a portion of the plurality of touch electrodes, wherein the at least one dummy metal is electrically disconnected from the corresponding touch electrode. ### Claim 10 (depends on 1) The touch display device of claim 1, wherein the plurality of touch electrodes include a first touch electrode positioned in a region other than the corner region and a second touch electrode positioned in the corner region, and wherein the first touch electrode and the second touch electrode have different shapes from each other.