Display device with light guide plate having angled eccentric microstructures
AssigneeTPK Touch Solutions (Xiamen) Inc.
InventorsMing-Chuan Lin, Sheh-Jung Lai, Kuo-Hsin Wang, Yu-Ling Chen
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Abstract
A display device includes a light guide plate a first area, a plurality of first eccentric microstructures positioned in the first area with a first eccentric orientation, a second area arranged at one side of the first area, and second eccentric microstructures positioned in the second area with a second eccentric orientation. An angle between the first eccentric orientation and the second eccentric orientation is less than 90 degrees. First and second light sources are disposed on a first side of the light guide, and configured to project light towards a corresponding one of the first and second eccentric microstructures.
Claims9
A light guide plate, comprising:
- a first area;
- a second area, located on at least one side of the first area;
- a substrate;
- a plurality of first eccentric microstructures, disposed in the substrate, and located at the first area, wherein each of the first eccentric microstructures comprises a first eccentric orientation;
- and
- a plurality of second eccentric microstructures, disposed in the substrate, and located at the second area, wherein each of the second eccentric microstructures comprises a second eccentric orientation, and wherein an angle between the first eccentric orientation and the second eccentric orientation is less than 90 degrees, wherein each of the first eccentric microstructures comprises:
- a curved surface, with a conical point and a cutting edge positioned at a surface of the substrate, wherein the first eccentric orientation is a direction from a central point of the cutting edge to a projection of the conical point to the surface;
- and
- at least one vertical cutting surface, wherein the at least one vertical cutting surface is parallel to the first eccentric orientation.
A display device, comprising:
- a light guide plate, comprising a first area and a second area located on at least one side of the first area, wherein the light guide plate comprising:
- a substrate;
- a plurality of first eccentric microstructures, disposed in the substrate, and located at the first area, wherein each of the first eccentric microstructures comprises a first eccentric orientation;
- and
- a plurality of second eccentric microstructures, disposed in the substrate, and located at the second area, wherein each of the second eccentric microstructures comprises a second eccentric orientation,
- wherein the first eccentric orientation is different from the second eccentric orientation,
- wherein an angle between the first eccentric orientation and the second eccentric orientation is less than 90 degrees;
- wherein each of the first eccentric microstructures comprises:
- a curved surface, with a conical point and a cutting edge positioned at a surface of the substrate, wherein the first eccentric orientation is a direction from a central point of the cutting edge to a projection of the conical point to the surface;
- and
- at least one vertical cutting surface, wherein the at least one vertical cutting surface is parallel to the first eccentric orientation.
Dependencies are inferred from the claim text.