Film touch sensor and method for fabricating the same
AssigneeDongwoo Fine-Chem Co., Ltd.
InventorsSang Kook Kim, Seong Hwan Park, Seung June Park, Sung Hoon Cho
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Abstract
A film touch sensor includes a separation layer, a protective layer disposed on the separation layer, and an electrode pattern layer which is disposed on the protective layer and includes an insulation layer formed by curing an insulation layer forming composition comprising a polymer having a repeating unit represented by Formula 1 or 2, such that it is possible to suppress thermal damage which may occur in high-temperature deposition and annealing processes, and significantly reduce an occurrence rate of cracks during peeling-off the same from a carrier substrate.
Claims12
A film touch sensor comprising:
- a separation layer;
- a protective layer disposed on the separation layer;
- and
- an electrode pattern layer which is disposed on the protective layer and includes an insulation layer that is a cured layer of an insulation layer forming composition comprising a polymer having a repeating unit represented by Formula 1 or 2 below:
- wherein at least one of R1 to R4 is —Xn—Y1, n is 0 or 1, X is an alkylene group or a carbonyl group having 1 to 6 carbon atoms, Y1 is a protonic polar group, the others of R1 to R4 is hydrogen or —Xn—Y2, Y2 is an alkyl group having 1 to 6 carbon atoms, an aryl group having 6 to 12 carbon atoms, or a protonic polar group, wherein the Y2 may be substituted with an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 12 carbon atoms, and m is an integer of 0 to 2;
- and
- wherein R5 and R6 are connected with each other to form a 3-membered or 5-membered hetero ring which may be substituted with an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 12 carbon atoms, and k is an integer of 0 to 2.
A method for fabricating a film touch sensor, the method comprising:
- forming a separation layer on a carrier substrate;
- forming a protective layer on the separation layer;
- forming an electrode pattern layer on the protective layer;
- and
- peeling-off the separation layer from the carrier substrate, wherein the step of forming the electrode pattern layer comprises applying and curing an insulation layer forming composition which contains a polymer having a repeating unit represented by Formula 1 or 2 below:
- wherein at least one of R1 to R4 is —Xn—Y1, n is 0 or 1, X is an alkylene group or a carbonyl group having 1 to 6 carbon atoms, Y1 is a protonic polar group, the others of R1 to R4 is hydrogen or —Xn—Y2, Y2 is an alkyl group having 1 to 6 carbon atoms, an aryl group having 6 to 12 carbon atoms, or a protonic polar group, wherein the Y2 may be substituted with an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 12 carbon atoms, and m is an integer of 0 to 2;
- and
- wherein R5 and R6 are connected with each other to form a 3-membered or 5-membered hetero ring which may be substituted with an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 12 carbon atoms, and k is an integer of 0 to 2.
Dependencies are inferred from the claim text.