Light guide plates and backlight module
AssigneesTsinghua University, Hon Hai Precision Industry Co., Ltd.
InventorsHe ZHANG, Jun ZHU, Qiao-Feng TAN, Guo-Fan JIN
Life of this patent
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Abstract
A light guide plate includes a light discharge surface, a light diffusing surface, a light incident surface, and a plurality of scattering dots. The light diffusing surface is located opposite to the light discharge surface. The light diffusing surface has a first part and a second part. The first part is adjacent to a light source. The light incident surface intersects with the light discharge surface and the light diffusing surface. The scattering dots within the first part are arranged in the form of a plurality of concentric arcs, and the scattering dots within the second part are arranged in the form of a plurality of lines.
Claims20
A light guide plate, comprising:
- a light discharge surface;
- a light diffusing surface positioned opposite to the light discharge surface, the light diffusing surface having a first part adjacent to a light source and a second part;
- a light incident surface intersecting with the light discharge surface and the light diffusing surface;
- and
- a plurality of scattering dots disposed on the light diffusing surface, the scattering dots within the first part are arranged in the form of a plurality of concentric arcs, and the scattering dots within the second part are arranged in the form of a plurality of lines.
A backlight module, comprising:
- a light guide plate and a light source located beside the light guide plate, the light guide plate comprising:
- a light discharge surface;
- a light diffusing surface positioned opposite to the light discharge surface;
- a light incident surface intersecting with the light discharge surface and the light diffusing surface;
- and
- a plurality of scattering dots disposed on the light diffusing surface and dividing the light diffusing surface into a first part and a second part, wherein the first part is disposed between the light incident surface and the second part;
- the scattering dots in the first part are arranged in the form of a plurality of concentric arcs;
- the scattering dots in the second part are arranged in the form of a plurality of lines.
A backlight module, comprising:
- a light source;
- and
- a light guide plate comprising:
- a light discharge surface;
- a light diffusing surface positioned opposite to the light discharge surface;
- a light incident surface intersecting with the light discharge surface and the light diffusing surface;
- a first side surface, a second side surface, and a third side surface, wherein the first side surface, the second side surface, and the third side surface intersect the light discharge surface and the light diffusing surface, and the first side surface and the third side surface intersect with the light incident surface;
- a plurality of scattering dots disposed on the light diffusing surface, and dividing the light diffusing surface into a first part and a second part, wherein the first part is disposed between the light incident surface and the second part;
- the scattering dots in the first part are arranged in the form of a plurality of concentric arcs;
- the scattering dots in the second part are arranged in the form of a plurality of lines substantially parallel with the second side surface;
- the light source is located beside the light incident surface of the light guide plate.
Dependencies are inferred from the claim text.