# US 2013/0155012 A1 · Pattern of touch screen > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0155012 A1 - Document ID: US20130155012A1 - Status: Published application - Kind: A1 - Application number: 13/714,523 - Filed: 2012-12-14 - Published: 2013-06-20 - Earliest claimed: 2011-12-19 - Assignees: Egalax_Empia Technology Inc. - Inventors: CHIN-FU CHANG - Web page: https://patentgrep.com/patent/US20130155012A1 ## CPC - 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} - 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 A capacitive touch screen includes a plurality of first conductive strips and a plurality of second conductive strips. Each of the first and the second conductive strips includes a plurality of branches on at least one side thereof. The branches of the first conductive strips and the branches of the second conductive strips are distributed in the spaces of each other. The branches are bent in a clockwise direction and/or an anticlockwise direction. ## Claims ### Claim 1 A capacitive touch screen comprising: a plurality of first conductive strips, each of the first conductive strips including a plurality of branches on at least one side thereof, each branch including a plurality of bends in one of clockwise and anticlockwise directions; and a plurality of second conductive strips, each of the second conductive strips including a plurality of branches on at least one side thereof, each branch including a plurality of bends in one of clockwise and anticlockwise directions, wherein the branches of the first conductive strips and the branches of the second conductive strips are distributed within the spaces of each other and are both bent in the same direction. ### Claim 2 (depends on 1) The capacitive touch screen of claim 1, wherein the branches of the first conductive strips and the branches of the second conductive strips do not intersect with each other, and portions of the first conductive strips other than the branches and portions of the second conductive strips other than the branches intersect at a plurality of places. ### Claim 3 (depends on 1) The capacitive touch screen of claim 1, wherein the bends are arc-shaped, so both the branches of the first and the second conductive strips are spiral-shaped. ### Claim 4 (depends on 1) The capacitive touch screen of claim 1, wherein the bends are at right angle, wherein each branch is composed of a plurality of vertical branch segments and a plurality of horizontal branch segments connected in series, and the lengths of the branch segments oriented in the same direction in the same branch are all different. ### Claim 5 (depends on 4) The capacitive touch screen of claim 4, wherein each branch of the first conductive strips bent in the clockwise direction is distributed in the space of one of the branches of the second conductive strips bent in the clockwise direction, and each branch of the first conductive strips bent in the anticlockwise direction is distributed in the space of one of the branches of the second conductive strips bent in the anticlockwise direction. ### Claim 6 (depends on 1) The capacitive touch screen of claim 1, wherein the total area of the first conductive strips is greater than that of the second conductive strips, wherein at least one of the first conductive strips is provided with a driving signal during mutual-capacitive detection, and the second conductive strips provide capacitive coupling signals during mutual-capacitive detection. ### Claim 7 A capacitive touch screen comprising: a plurality of first conductive strips, each of the first conductive strips including a plurality of branches on at least one side thereof, each branch of the first conductive strips including a plurality of first branches and a plurality of second branches, each of the first branches including a plurality of bends in a clockwise direction and each of the second branches including a plurality of bends in an anticlockwise direction; and a plurality of second conductive strips, each of the second conductive strips including a plurality of branches on at least one side thereof, each branch of the second conductive strips including a plurality of first branches and a plurality of second branches, each of the first branches including a plurality of bends in the clockwise direction and each of the second branches including a plurality of bends in the anticlockwise direction, wherein the branches of the first conductive strips and the branches of the second conductive strips are distributed within the spaces of each other. ### Claim 8 (depends on 7) The capacitive touch screen of claim 7, wherein the branches of the first conductive strips and the branches of the second conductive strips do not intersect with each other, and portions of the first conductive strips other than the branches and portions of the second conductive strips other than the branches intersect at a plurality of places. ### Claim 9 (depends on 7) The capacitive touch screen of claim 7, wherein the bends are arc-shaped, so both the branches of the first and the second conductive strips are spiral-shaped. ### Claim 10 (depends on 7) The capacitive touch screen of claim 7, wherein the bends are at right angle, wherein each branch is composed of a plurality of vertical branch segments and a plurality of horizontal branch segments connected in series, and the lengths of the branch segments oriented in the same direction in the same branch are all different. ### Claim 11 (depends on 10) The capacitive touch screen of claim 10, wherein each branch of the first conductive strips bent in the clockwise direction is distributed in the space of one of the branches of the second conductive strips bent in the clockwise direction, and each branch of the first conductive strips bent in the anticlockwise direction is distributed in the space of one of the branches of the second conductive strips bent in the anticlockwise direction. ### Claim 12 (depends on 7) The capacitive touch screen of claim 7, wherein the total area of the first conductive strips is greater than that of the second conductive strips, wherein at least one of the first conductive strips is provided with a driving signal during mutual-capacitive detection, and the second conductive strips provide capacitive coupling signals during mutual-capacitive detection.