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US 2020/0271845 A1Published application
Light guide plate
AssigneeOptivision Technology Inc.
InventorsChia-Kuo KAO, Tsung-Hsien WU, Li-Jen HSU
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Abstract
A light guide plate includes a plate body having a light exit surface, a reflection surface opposite to the light exit surface, and a light-incident surface connected between the light exit surface and the reflection surface and adapted to face a light source. The light-incident surface includes a vertical portion perpendicularly connected to the light exit surface, and a sloped portion connecting the vertical portion and the reflection surface. The sloped portion is inwardly inclined from the vertical portion towards the reflection surface.
Claims5
A light guide plate, comprising:
- a plate body having
- a light exit surface,
- a reflection surface opposite to said light exit surface, and
- a light-incident surface that is connected between said light exit surface and said reflection surface, said light-incident surface is adapted to face a light source for receiving a light emitted from the light source,
- wherein said light-incident surface includes a vertical portion perpendicularly connected to said light exit surface, and a sloped portion connecting said vertical portion and said reflection surface, said sloped portion inwardly inclined from said vertical portion towards said reflection surface;
- and
- wherein said plate body has a thickness (T1) in a direction extending from said reflection surface to said light exit surface, said vertical portion having a perpendicular distance (T2) extending between said sloped portion to said light exit surface in the direction, said perpendicular distance (T2) being smaller than said thickness (T1).
4 more elements
Dependencies are inferred from the claim text.