# US 2014/0152910 A1 · Flexible touch screen panel and fabrication method therof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0152910 A1 - Document ID: US20140152910A1 - Status: Published application - Kind: A1 - Application number: 13/849,357 - Filed: 2013-03-22 - Published: 2014-06-05 - Earliest claimed: 2012-11-30 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Sung-Ku Kang; Tae-Hyeog Jung; Kyu-Young Kim; Byeong-Kyu Jeon; Jung-Yun Kim; In-Nam Lee - Web page: https://patentgrep.com/patent/US20140152910A1 ## CPC - G06F 1/169: {the I/O peripheral being an integrated pointing device, e.g. trackball in the palm rest area, mini-joystick integrated between keyboard keys, touch pads or touch stripes (G06F1/1643 takes precedence; constructional details of pointing devices G06F3/033)} - G06F 1/1643: {the display being associated to a digitizer, e.g. laptops that can be used as penpads (details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615)} - G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable} - 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: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A flexible touch screen panel with sensing electrodes formed of different materials is disclosed. In one aspect, the panel includes a substrate, a plurality of first and second sensing electrodes, a plurality of first and second position detection lines, and a pad portion. The substrate is divided into an active area, and first and second non-active area formed at the outside of the active area. The plurality of first sensing electrodes are arranged along a first direction and the plurality of second sensing electrodes are arranged along a second direction in the active area. The plurality of first and second position detection lines are formed in the first non-active area, and respectively connected to the plurality of first and second sensing electrodes. The pad portion is formed in the second non-active area, and has a plurality of pads electrically connected to the plurality of first and second position detection lines. The first and second sensing electrodes are formed of different materials from each other. ## Claims ### Claim 1 A flexible touch screen panel, comprising: a substrate divided into an active area, and at least one non-active area formed outside of the active area; a plurality of first sensing electrodes arranged along a first direction and a plurality of second sensing electrodes arranged along a second direction in the active area; a plurality of first and second position detection lines formed in the non-active area, and respectively connected to the plurality of first and second sensing electrodes; and a pad portion formed in the non-active area, and having a plurality of pads electrically connected to the plurality of first and second position detection lines, wherein the first and second sensing electrodes are formed of different materials from each other. ### Claim 2 (depends on 1) The flexible touch screen panel of claim 1, wherein the first sensing electrodes include a plurality of first sensing cells arranged along the first direction, and first connection patterns connecting the first sensing cells to each other. ### Claim 3 (depends on 2) The flexible touch screen panel of claim 2, wherein the first sensing cells have a mesh shape including a plurality of openings. ### Claim 4 (depends on 1) The flexible touch screen panel of claim 1, wherein the first sensing electrodes and the first position detection lines are formed of an opaque metal material. ### Claim 5 (depends on 1) The flexible touch screen panel of claim 1, wherein the second sensing electrodes include a plurality of second sensing cells arranged along the second direction, and second connection patterns connecting the second sensing cells to each other. ### Claim 6 (depends on 1) The flexible touch screen panel of claim 1, wherein the second sensing electrodes and the second position detection lines are formed by patterning a nano-metal conductive layer. ### Claim 7 (depends on 6) The flexible touch screen panel of claim 6, wherein the nano-metal conductive layer is formed of a compound having a stacked structure of a photosensitive organic layer and a conductive network layer configured with a plurality of metallic nano-wires. ### Claim 8 (depends on 7) The flexible touch screen panel of claim 7, wherein the metallic nano-wires are formed as silver nano-wires (AgNW). ### Claim 9 (depends on 7) The flexible touch screen panel of claim 7, wherein the second sensing cells and the second connection patterns are implemented by patterning the conductive network layer formed in the uppermost layer of the compound. ### Claim 10 (depends on 7) The flexible touch screen panel of claim 7, wherein the nonactive area comprises first and second non-active areas, and wherein the photosensitive organic layer is formed on a region overlapped with the active area and the first non-active area but not the second non-active area. ### Claim 11 (depends on 10) The flexible touch screen panel of claim 10, further comprising a plurality of first and second connecting portions formed on the second non-active area, and respectively connecting the plurality of first and second position detection lines and the pads corresponding thereto. ### Claim 12 (depends on 11) The flexible touch screen panel of claim 11, wherein the connecting portions are implemented into a multi-layered line structure. ### Claim 13 (depends on 10) The flexible touch screen panel of claim 10, wherein the first sensing electrodes and the first position detection lines connected thereto are formed on one surface of the substrate, and the second sensing electrodes and the second position detection lines connected thereto are formed on the photosensitive organic layer. ### Claim 14 (depends on 11) The flexible touch screen panel of claim 11, wherein the first connecting portion is implemented with a first lower line formed on the substrate, and a first upper line overlapped with the first lower line and having one end extended on the photosensitive organic layer. ### Claim 15 (depends on 14) The flexible touch screen panel of claim 14, wherein the first lower line is implemented by extending, to the second non-active area, the first position detection line formed on the first non-active area of the substrate. ### Claim 16 (depends on 14) The flexible touch screen panel of claim 14, wherein the first upper line are simultaneously formed with the second sensing electrodes and the second position detection lines. ### Claim 17 (depends on 11) The flexible touch screen panel of claim 11, wherein the second connecting portion is implemented with a second lower line formed on the substrate and having one end partially extended beneath the photosensitive organic layer, and a second upper line overlapped with the second lower line and connected to the second position detection line formed on the photosensitive organic layer. ### Claim 18 (depends on 17) The flexible touch screen panel of claim 17, wherein the second upper line is implemented by extending, to the second non-active area, the second position detection line formed on the photosensitive organic layer of the first non-active area. ### Claim 19 (depends on 17) The flexible touch screen panel of claim 17, wherein the second lower line is simultaneously formed with the first sensing electrodes and the first position detection lines. ### Claim 20 A fabrication method of a flexible touch screen panel, the method comprising: forming a plurality of first sensing electrodes and first position detection lines connected thereto on a first surface of a substrate; forming a nano-metal conductive compound implemented into a stacked structure of a photosensitive organic layer and a conductive network layer on the substrate on which the first sensing electrodes and the first position detection lines are formed; and patterning the conductive network layer formed in the uppermost layer of the nano-metal conductive compound, thereby forming second sensing electrodes arranged to intersect with the first sensing electrodes and second position detection lines connected to the second sensing electrodes. ### Claim 21 (depends on 20) The fabrication method of claim 20, wherein the first sensing electrodes include a plurality of first sensing cells arranged along a first direction, and first connection patterns connecting the first sensing cells to each other. ### Claim 22 (depends on 21) The fabrication method of claim 21, wherein the first sensing cells have a mesh shape including a plurality of openings. ### Claim 23 (depends on 20) The fabrication method of claim 20, wherein the first sensing electrodes and the first position detection lines are formed of an opaque metal material. ### Claim 24 (depends on 20) The fabrication method of claim 20, wherein the second sensing electrodes include a plurality of second sensing cells arranged along a second direction, and second connection patterns connecting the second sensing cells to each other. ### Claim 25 (depends on 20) The fabrication method of claim 20, wherein the conductive network layer is configured with a plurality of metallic nano-wires. ### Claim 26 (depends on 25) The fabrication method of claim 25, wherein the metallic nano-wires are silver nano-wires (AgNW).