Patent ID: 9477334
Filing Date: 2016-10-25
CPC Classification: B29C,B29L,B32B,G06F

Claim Text:
1. A curved touch panel with a predetermined curvature, comprising: a curved substrate having a curved upper surface and a curved lower surface, the upper surface being chemically strengthened and the lower surface being acid-etched to be slimmed down to a thickness of about 100 μm to about 550 μm, wherein a curvature of the curved substrate is caused by a stress difference between the chemically strengthened upper surface and the acid-etched lower surface; an adhesive layer disposed on one of the curved upper surface and the curved lower surface of the curved substrate; and a curved touch sensor plate with flexibility having a curved upper surface and curved lower surface disposed on the adhesive layer opposite to the curved substrate, wherein at least one of the curved upper surface and the curved lower surface are acid-etched to be slimmed down to a thickness of about 30 μm to about 100 μm, and the curved substrate, the adhesive layer, and the curved touch sensor plate are attached together.