| 摘要 |
PROBLEM TO BE SOLVED: To provide a touch panel substrate, even when forming a multilayered structure using a large-scale glass substrate, the two front/back surfaces of which are chemically strengthened, having high impact resistance at six surfaces of the front, back, and lateral surfaces after being cut.SOLUTION: A cover glass integrated type touch panel sensor substrate (a touch panel) consists of two-side-strengthened glass substrate 1 having chemically strengthened layers 2 on the front/back, where one surface of the touch panel 6 is divided into a display area, and a decorated frame area 4 formed around the outer periphery thereof. A peripheral end of one surface is chamfered in the cross-sectional direction into a curved surface shape with a curvature radius R, a peripheral end of the other surface is chamfered in the cross-sectional direction into a curved surface shape with a curvature radius R, and a surface between a curved surface terminal of the curvature radius Rand a curved surface terminal of the curvature radius Rconsists of a vertical surface. |
