Patent ID: 8570303

Claim:
A display module, comprising: a display panel, having a display region and a peripheral region disposed next to the display region, the display panel comprising an active device array substrate and an opposite substrate, wherein the opposite substrate covers the active device array substrate in the display region and exposes a portion of the active device array substrate in the peripheral region; and a fingerprint sensor, disposed on the active device array substrate in the peripheral region not covered by the opposite substrate, the fingerprint sensor comprising: a photosensor array, disposed on the active device array substrate; a light guide element, disposed over the photosensor array, wherein the light guide element is a bar-shaped light guide element; and a light source, disposed next to the light guide element, wherein the light source is disposed at an end of the bar-shaped light guide element, and wherein the other end of the bar-shaped light guide element is covered by a reflection layer disposed opposite to the light source to reflect the light from the light source.