# US 12,223,153 B2 · Display panel with same shape of grid structure of touch electrodes, leads, dummy electrodes and mobile terminal > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,223,153 B2 - Document ID: US12223153B2 - Status: Granted - Kind: B2 - Application number: 17/599,524 - Filed: 2021-09-14 - Published: 2024-02-15 - Granted: 2025-02-11 - Earliest claimed: 2021-08-30 - Assignees: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. - Applicants: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. - Inventors: Xing Wang - Web page: https://patentgrep.com/patent/US12223153B2 ## CPC - 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 3/0412: {Digitisers structurally integrated in a display} - G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads} - G06F 3/0443: {using a single layer of sensing electrodes} - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - G06F 2203/04107: Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds - 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 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 display panel and a mobile terminal are provided by the present disclosure, including a substrate and a conductive layer on the substrate. The conductive layer includes a plurality of touch electrodes, a plurality of leads, and a plurality of dummy electrodes, wherein each one of the leads is disposed between two adjacent ones of the touch electrodes, and each one of the dummy electrodes is disposed between one of the touch electrodes and one of the leads which are adjacent to each other. Each one of the leads is electrically connected between the corresponding touch electrode and a touch chip, and the dummy electrodes are electrically connected to neither the touch electrodes nor the leads. A shape of a grid structure of the touch electrodes, a shape of a grid structure of the leads, and a shape of a grid structure of the dummy electrodes are the same. ## Claims ### Claim 1 A display panel, comprising: a substrate and a conductive layer disposed on the substrate, wherein the conductive layer includes a plurality of touch electrodes, a plurality of leads, and a plurality of dummy electrodes, each one of the leads is disposed between two adjacent ones of the touch electrodes, each one of the dummy electrodes is disposed between one of the touch electrodes and one of the leads which are adjacent to each other, one end of each one of the leads is electrically connected to the corresponding touch electrode, and the other end is electrically connected to a touch chip, and the dummy electrodes are electrically connected to neither the touch electrodes nor the leads; wherein the touch electrodes, the leads, and the dummy electrodes all include a grid structure of a same shape; wherein the display panel further comprises a light-emitting layer disposed between the substrate and the conductive layer, and the light-emitting layer includes a plurality of light-emitting pixels; wherein the grid structures of the touch electrodes, the leads, and the dummy electrodes include a plurality of grid bodies disposed around the corresponding light- emitting pixel; and further include at least one grid connection line configured to electrically connect to one of the grid bodies adjacent thereto, the grid structure of the touch electrodes and the grid structure of the leads further includes at least one grid connection line configured to electrically connect two adjacent ones of the grid bodies, and a shape of the grid bodies of the touch electrodes, a shape of the grid bodies of the leads, and a shape of the grid bodies of the dummy electrodes are the same; wherein each one of the grid bodies includes at least one arc line segment structure; and wherein the touch electrodes include a plurality of lapping points, and each one of the lapping points is connected between two adjacent ones of the grid bodies in the touch electrodes, and the plurality of lapping points are evenly distributed. ### Claim 2 (depends on 1) The display panel of claim 1, wherein the plurality of grid bodies of the grid structures of the touch electrodes, the leads, and the dummy electrodes are arranged in a first direction and a second direction, and each one of the grid bodies includes two sub-grid bodies located on both sides of the corresponding light-emitting pixel; and wherein in the sub-grid bodies arranged in the second direction, the grid connection line is connected between two adjacent ones of the sub-grid bodies, and the sub-grid bodies and the grid connection line disposed alternately and continuously in the second direction are formed as a strip-shaped structure. ### Claim 3 (depends on 2) The display panel of claim 2, wherein in each one of the grid bodies, a disconnected structure is connected to one side of one of the sub-grid bodies away from the other sub-grid body. ### Claim 4 (depends on 2) The display panel of claim 2, wherein each one of the leads includes a horizontal sub-lead which extends in the first direction and is connected to the corresponding touch electrode, and the first direction is parallel to one side of the display panel close to the horizontal sub-lead; and wherein the horizontal sub-lead includes the sub-grid bodies electrically connected in the first direction. ### Claim 5 (depends on 4) The display panel of claim 4, wherein each one of the leads further includes a vertical sub-lead which extends in the second direction and is connected to the horizontal sub-lead, and the second direction is parallel to one side of the display panel close to the vertical sub-lead; and wherein the vertical sub-lead includes the strip-shaped structures arranged in the second direction, and two adjacent ones of the strip-shaped structures are electrically connected or insulated from each other. ### Claim 6 (depends on 2) The display panel of claim 2, wherein the touch electrodes include the strip-shaped structures arranged in the second direction. ### Claim 7 (depends on 2) The display panel of claim 2, wherein the dummy electrodes include the strip-shaped structures arranged in the second direction, and the strip-shaped structures in the dummy electrodes are insulated from the touch electrodes and the leads. ### Claim 8 (depends on 1) The display panel of claim 1, wherein the touch electrodes include a backbone area which is located in the middle of the touch electrodes and extends in the first direction, and a contour formed by the plurality of lapping points in the backbone area is formed as a plurality of rhombus structures arranged in the first direction. ### Claim 9 A display panel, comprising: a substrate and a conductive layer disposed on the substrate, wherein the conductive layer includes a plurality of touch electrodes, a plurality of leads, and a plurality of dummy electrodes, each one of the leads is disposed between two adjacent ones of the touch electrodes, each one of the dummy electrodes is disposed between one of the touch electrodes and one of the leads which are adjacent to each other, one end of each one of the leads is electrically connected to the corresponding touch electrode, and the other end is electrically connected to a touch chip, and the dummy electrodes are electrically connected to neither the touch electrodes nor the leads; wherein the touch electrodes, the leads, and the dummy electrodes all include a grid structure of a same shape; wherein the grid structures of the touch electrodes, the leads, and the dummy electrodes include a plurality of grid bodies disposed around the corresponding light-emitting pixel; and wherein the touch electrodes include a plurality of lapping points, and each one of the lapping points is connected between two adjacent ones of the grid bodies in the touch electrodes, and the plurality of lapping points are evenly distributed. ### Claim 10 (depends on 9) The display panel of claim 9, wherein the display panel further comprises a light-emitting layer disposed between the substrate and the conductive layer, and the light-emitting layer includes a plurality of light-emitting pixels; wherein the grid structures of the touch electrodes, the leads, and the dummy electrodes further include at least one grid connection line configured to electrically connect to one of the grid bodies adjacent thereto, the grid structure of the touch electrodes and the grid structure of the leads further includes at least one grid connection line configured to electrically connect two adjacent ones of the grid bodies, and shapes of the grid bodies of the touch electrodes, the grid bodies of the leads, and the grid bodies of the dummy electrodes are the same. ### Claim 11 (depends on 10) The display panel of claim 10, wherein the plurality of grid bodies of the grid structures of the touch electrodes, the leads, and the dummy electrodes are arranged in a first direction and a second direction, and each one of the grid bodies includes two sub-grid bodies located on both sides of the corresponding light-emitting pixel; and wherein in the sub-grid bodies arranged in the second direction, the grid connection line is connected between two adjacent ones of the sub-grid bodies, and the sub-grid bodies and the grid connection line disposed alternately and continuously in the second direction are formed as a strip-shaped structure. ### Claim 12 (depends on 11) The display panel of claim 11, wherein in each one of the grid bodies, a disconnected structure is connected to one side of one of the sub-grid bodies away from the other sub-grid body. ### Claim 13 (depends on 11) The display panel of claim 11, wherein each one of the leads includes a horizontal sub-lead which extends in the first direction and is connected to the corresponding touch electrode, and the first direction is parallel to one side of the display panel close to the horizontal sub-lead; and wherein the horizontal sub-lead includes the sub-grid bodies electrically connected in the first direction. ### Claim 14 (depends on 13) The display panel of claim 13, wherein each one of the leads further includes a vertical sub-lead which extends in the second direction and is connected to the horizontal sub-lead, and the second direction is parallel to one side of the display panel close to the vertical sub-lead; and wherein the vertical sub-lead includes the strip-shaped structures arranged in the second direction, and two adjacent ones of the strip-shaped structures are electrically connected or insulated from each other. ### Claim 15 (depends on 11) The display panel of claim 11, wherein the touch electrodes include the strip-shaped structures arranged in the second direction. ### Claim 16 (depends on 11) The display panel of claim 11, wherein the dummy electrodes include the strip-shaped structures arranged in the second direction, and the strip-shaped structures in the dummy electrodes are insulated from the touch electrodes and the leads. ### Claim 17 (depends on 9) The display panel of claim 9, wherein the touch electrodes include a backbone area which is located in the middle of the touch electrodes and extends in the first direction, and a contour formed by the plurality of lapping points in the backbone area is formed as a plurality of rhombus structures arranged in the first direction. ### Claim 18 (depends on 9) A mobile terminal, comprising: a terminal body and the display panel of claim 9, wherein the terminal body and the display panel are combined into one body.