# US 8,570,299 B2 · Touch panel and touch panel type display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,570,299 B2 - Document ID: US8570299B2 - Status: Granted - Kind: B2 - Application number: 12/666,248 - Filed: 2008-06-28 - Published: 2010-12-23 - Granted: 2013-10-29 - Earliest claimed: 2007-06-28 - Assignees: KYOCERA Corporation - Applicants: Junichi Nozawa - Inventors: Junichi Nozawa - Web page: https://patentgrep.com/patent/US8570299B2 ## CPC - G06F 3/045: using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract The present invention is related to a touch panel comprising: a first base that includes a first resistance film; a second base that includes a second resistance film; a conductor that is electrically connected to at least one of the first resistance film and the second resistance film; and a spacer that is interposed in a first facing area where the first resistance film faces the second resistance film. The spacer is also interposed in a second facing area where at least one of the first resistance film and the second resistance film faces the conductor. The present invention may further include an insulating film interposed in the second facing area, instead of the spacer interposed in the second facing area. The component materials of the insulating film are the same as those of the spacers. ## Claims ### Claim 1 A touch panel comprising: a first base that includes a first resistance film; a second base that includes a second resistance film; a first conductor disposed on the second base, that is electrically connected to the first resistance film; a second conductor disposed on the second base, that is electrically connected to the second resistance film; and a spacer that is interposed in a first facing area where the first resistance film faces the second resistance film, wherein the spacer is also interposed in at least a part of a second facing area where the first resistance film faces the first conductor. ### Claim 2 (depends on 1) The touch panel according to claim 1, wherein the spacer is disposed on the second base. ### Claim 3 (depends on 1) The touch panel according to claim 1, wherein a component material of the spacer is one of a thermosetting resin and an ultraviolet curing resin. ### Claim 4 (depends on 1) The touch panel according to claim 1, wherein the spacer includes an insulating particle. ### Claim 5 (depends on 1) The touch panel according to claim 1, wherein the spacer comprises a plurality of dot spacers, and an arrangement pitch of the dot spacers interposed in the second facing area is smaller than an arrangement pitch of the dot spacers interposed in the first facing area. ### Claim 6 (depends on 5) The touch panel according to claim 5, wherein the arrangement pitch of the dot spacers interposed in the second facing area is equal to or less than 200 micrometers. ### Claim 7 (depends on 1) The touch panel according to claim 1, wherein the first conductor comprises a metal thin film. ### Claim 8 (depends on 7) The touch panel according to claim 7, wherein the metal thin film is an aluminum film, an aluminum alloy film, a multi-layered film of chromium and aluminum films, or a multi-layered film of chromium and aluminum alloy films. ### Claim 9 (depends on 1) A touch panel type display device comprising: a display panel; and a touch panel according to claim 1 that is arranged in such a manner that a principal surface of the first base or the second base faces a principal surface of the display panel. ### Claim 10 (depends on 1) The touch panel according to claim 1, wherein the first conductor separates from the second resistance film and the second conductor. ### Claim 11 (depends on 1) The touch panel according to claim 1, wherein the second base further comprises a substrate, and the second resistance film and the first conductor are directly on the substrate. ### Claim 12 (depends on 1) The touch panel according to claim 1, wherein a conductive adhesive member is located between the first base and the second base, the conductive adhesive member electrically connects the first resistance film and the first conductor, and the spacer interposed in the second facing area is positioned between the conductive adhesive member and the second resistance film. ### Claim 13 A touch panel comprising: a first base that includes a first resistance film; a second base that includes a second resistance film; a first conductor disposed on the second base, that is electrically connected to the first resistance film; a second conductor disposed on the second base, that is electrically connected to the second resistance film; and a spacer that is interposed between the first resistance film and the second resistance film, wherein the first conductor separates from the second resistance film and the second conductor, the touch panel further comprises an insulating film that is interposed in at least a part of a facing area where the first resistance film faces the first conductor, and a component material of the insulating film is same as a component material of the spacer. ### Claim 14 (depends on 13) The touch panel according to claim 13, wherein the insulating film and the spacer are disposed on the second base. ### Claim 15 (depends on 13) The touch panel according to claim 13, wherein a component material of the spacer is one of a thermosetting resin and an ultraviolet curing resin. ### Claim 16 (depends on 13) The touch panel according to claim 13, wherein the spacer includes an insulating particle. ### Claim 17 (depends on 13) The touch panel according to claim 13, wherein the first conductor comprises a metal thin film. ### Claim 18 (depends on 17) The touch panel according to claim 17, wherein the metal thin film is an aluminum film, an aluminum alloy film, a multi-layered film of chromium and aluminum films, or a multi-layered film of chromium and aluminum alloy films. ### Claim 19 (depends on 13) A touch panel type display device comprising: a display panel; and a touch panel according to claim 13 that is arranged in such a manner that a principal surface of the first base or the second base faces a principal surface of the display panel.