| 摘要 |
PROBLEM TO BE SOLVED: To provide a thin type key sheet with extrusion of an adhesive prevented, and with adhesive marks or bubble marks hardly seen. SOLUTION: Since an adhesive layer 8 is in a dot pattern made of a plurality of dots separating each other through gaps, when a key top 1 and a base sheet 7 are adhered through the adhesive layer 8, air can be let out through the gaps, so that air bubbles which can be seen by eyes inside the adhesive layer 8 or on an interface between the adhesive layer 8 and the key top 1 can hardly be rolled in. And also, since the adhesive layer 8 is a screen printed layer, micropatterns of the adhesive layer 8 can be in order of microns, and the micropatterns of the adhesive layer 8 can be made hardly seen through the key top 1. COPYRIGHT: (C)2008,JPO&INPIT
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