Invention Grant
US08852852B2 Narrow frame touch input sheet, manufacturing method of same, and conductive sheet used in narrow frame touch input sheet 有权
窄框触摸输入板,其制造方法和窄框触摸输入板中使用的导电片

Narrow frame touch input sheet, manufacturing method of same, and conductive sheet used in narrow frame touch input sheet
Abstract:
A method for manufacturing a narrow frame touch input sheet includes forming and stacking transparent conductive films, light-excluding conductive electrode films, and first resist layers sequentially on both surfaces of a transparent base sheet, exposing and developing the first resist layers simultaneously on the both surfaces, etching the transparent and light-excluding conductive electrode films on the both surfaces, and stripping the first resist layers to form a fine wiring circuit pattern with the stacked transparent conductive film and light-excluding conductive electrode film in an outer edge portion on each of the two surfaces. The method further includes forming a second resist layer to cover the fine wiring circuit pattern on each surface, and etching only the light-excluding electrode conductive film layer on which the second resist layer is not formed, to expose a circuit pattern of the transparent conductive film in a central window portion on each surface.
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