Electronic device

Abstract: an electronic device includes: a reflective panel; a light guide plate disposed on the reflective panel and having a first surface adjacent to the reflective panel, a second surface and a side surface; and a light source adjacent to the side surface, wherein the second surface includes a recessed structures having a depth, the side surface has a thickness, and a ratio of the depth to the thickness is greater than or equal to 0.0001 and less than or equal to 0.25, wherein after light emitted by the light source, a first light pattern is measured from the first surface, a second light pattern is measured from the second surface, and a maximum ratio of brightness of the first light pattern to brightness of the second light pattern is located at a view angle greater than or equal to 0� and less than or equal to 40�.

Inventor(s): Wei-Sung LO, Shih-Fu LIAO, Wei-Cheng LEE, I-An YAO

CPC Classification: G02B6/0036 (Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings)

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