Light Guide Plate and Backlight Module
First Claim
1. A light guide plate, comprising:
- a first light guide body comprising a light incident plane, a first connection surface, and a plurality of recesses, wherein the recesses are disposed on the first connection surface, and each of the recesses has a bottom plane, and the light incident plane intersects with the first connection surface; and
a second light guide body comprising a light emitting plane, a second connection surface, and a plurality of protrusions, wherein the light emitting plane is opposite to the second connection surface, the first connection surface contacts the second connection surface, the bottom plane of each of the recesses is substantially parallel to the light emitting plane, the protrusions are disposed on the second connection surface and fill the recesses respectively, a plurality of first cross-sectional planes of each of the protrusions substantially parallel to the light emitting plane decrease gradually in a first direction towards the bottom plane of the corresponding recess, the first direction is perpendicular to the light emitting plane, a terminal thickness of the second light guide body is less than a terminal thickness of the first light guide body, and the refractive index of the second light guide body is greater than the refractive index of the first light guide body.
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Accused Products
Abstract
A light guide plate includes a first light guide body having a light incident plane, a first connection surface, and recesses and a second light guide body having a light emitting plane, a second connection surface opposite to the light emitting plane, and protrusions. The recesses are disposed on the first connection surface. Each of the recesses has a bottom plane parallel to the light emitting plane. The light incident plane intersects with the first connection surface. The first connection surface contacts the second connection surface. The protrusions are disposed on the second connection surface and fill the recesses respectively. Cross-sectional planes of each protrusion parallel to the light emitting plane decrease gradually in a direction towards the bottom plane of the corresponding recess. A terminal thickness of the second light guide body is less than that of the first one.
21 Citations
20 Claims
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1. A light guide plate, comprising:
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a first light guide body comprising a light incident plane, a first connection surface, and a plurality of recesses, wherein the recesses are disposed on the first connection surface, and each of the recesses has a bottom plane, and the light incident plane intersects with the first connection surface; and a second light guide body comprising a light emitting plane, a second connection surface, and a plurality of protrusions, wherein the light emitting plane is opposite to the second connection surface, the first connection surface contacts the second connection surface, the bottom plane of each of the recesses is substantially parallel to the light emitting plane, the protrusions are disposed on the second connection surface and fill the recesses respectively, a plurality of first cross-sectional planes of each of the protrusions substantially parallel to the light emitting plane decrease gradually in a first direction towards the bottom plane of the corresponding recess, the first direction is perpendicular to the light emitting plane, a terminal thickness of the second light guide body is less than a terminal thickness of the first light guide body, and the refractive index of the second light guide body is greater than the refractive index of the first light guide body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A backlight module comprising:
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a light guide plate comprising; a first light guide body comprising a light incident plane, a first connection surface, and a plurality of recesses, wherein the recesses are disposed on the first connection surface, and each of the recesses has a bottom plane, and the light incident plane intersects with the first connection surface; and a second light guide body comprising a light emitting plane, a second connection surface, and a plurality of protrusions, wherein the light emitting plane is opposite to the second connection surface, the first connection surface contacts the second connection surface, the bottom plane of each of the recesses is substantially parallel to the light emitting plane, the protrusions are disposed on the second connection surface and fill the recesses respectively, a plurality of first cross-sectional planes of each of the protrusions substantially parallel to the light emitting plane decrease gradually in a first direction towards the bottom plane of the corresponding recess, the first direction is substantially perpendicular to the light emitting plane, and a terminal thickness of the second light guide body is less than a terminal thickness of the first light guide body and the refractive index of the second light guide body is greater than the refractive index of the first light guide body; and a light source disposed beside the light incident plane. - View Dependent Claims (19, 20)
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Specification