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 which is disposed on the separation layer and is a cured layer of a polymer having a repeating unit represented by Formula 1 or 2, and an electrode pattern layer disposed on the protective layer, such that it is possible to suppress thermal damage such as wrinkles, or cracks of an protective layer, 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.
Claims9
A film touch sensor comprising:
- a separation layer;
- a protective layer which is disposed on the separation layer and is a cured layer of a polymer having a repeating unit represented by Formula 1 or 2 below;
- and
- an electrode pattern layer disposed on the protective layer:
- 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;
- applying a protective layer forming composition which contains a polymer having a repeating unit represented by Formula 1 or 2 below on the separation layer and curing the same to form a protective layer thereon;
- forming an electrode pattern layer on the protective layer;
- and
- peeling-off the separation layer from the carrier substrate:
- 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.