| 摘要 |
A touch panel includes a transparent substrate defining a touch surface and a non-touch surface, and a light guide plate arranged at the non-touch surface of the transparent substrate. The light guide plate defines a light output surface facing toward the non-touch surface of the transparent substrate, a bottom surface opposite to the light output surface, a light incident surface connected between the light output surface and the bottom surface, and a plurality of spaced refraction zones. Based on the aforesaid arrangement, the touch panel produces a uniform brightness distribution across the screen.
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