Light guiding device with two opposite light emitting surfaces and backlight module using the same
First Claim
1. A light guiding device, comprising:
- a single light guide plate comprising a light incident surface, a top light emitting surface, and an opposite bottom light emitting surface; and
a reflection member comprising a top reflection surface and an opposite bottom reflection surface;
wherein the single light guide plate has a plate cavity formed therein for receiving the reflection member, the top reflection surface of the reflection member faces toward the top light emitting surface of the light guide plate, and the bottom reflection surface of the reflection member faces toward the bottom light emitting surface of the light guide plate; and
when light beams enter the light guide plate via the light incidence surface, some of the light beams are reflected by the top reflection surface of the reflection member and emit from the top light emitting surface of the light guide plate, and other of the light beams are reflected by the bottom reflection surface of the reflection member and emit from the bottom light emitting surface of the light guide plate.
1 Assignment
0 Petitions
Accused Products
Abstract
A backlight module (1) has a light guiding device (2) and a light source (200). The light guiding device has a single light guide plate (20), and a reflection member (26). The single light guide plate has a light incidence surface (211), a top light emitting surface (23), and an opposite bottom light emitting surface (22). The single light guide plate further has a plate cavity (not labeled) formed therein for receiving the reflection member. The reflection member has a top reflection surface (28) and an opposite bottom reflection surface (29). The top reflection surface of the reflection member faces toward the top light emitting surface of the light guide plate, and the bottom reflection surface of the reflection member faces toward the bottom light emitting surface of the light guide plate.
29 Citations
10 Claims
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1. A light guiding device, comprising:
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a single light guide plate comprising a light incident surface, a top light emitting surface, and an opposite bottom light emitting surface; and a reflection member comprising a top reflection surface and an opposite bottom reflection surface; wherein the single light guide plate has a plate cavity formed therein for receiving the reflection member, the top reflection surface of the reflection member faces toward the top light emitting surface of the light guide plate, and the bottom reflection surface of the reflection member faces toward the bottom light emitting surface of the light guide plate; and when light beams enter the light guide plate via the light incidence surface, some of the light beams are reflected by the top reflection surface of the reflection member and emit from the top light emitting surface of the light guide plate, and other of the light beams are reflected by the bottom reflection surface of the reflection member and emit from the bottom light emitting surface of the light guide plate. - View Dependent Claims (2, 3, 4, 5)
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6. A backlight module, comprising:
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a light guiding device comprising a single light guide plate and a reflection member; and a light source; wherein the single light guide plate comprises a light incident surface, a top light emitting surface, and an opposite bottom light emitting surface, the reflection member comprises a top reflection surface and an opposite bottom reflection surface, the single light guide plate further comprises an inner plate cavity formed therein for receiving the reflection member, and a side surface with an opening for putting the reflection member into the inner plate cavity, the top reflection surface of the reflection member faces toward the top light emitting surface of the light guide plate, the bottom reflection surface of the reflection member faces toward the bottom light emitting surface of the light guide plate, and the light source is disposed adjacent to the light incident surface of the light guide plate; and when light beams emitted from the light source enter the light guide plate via the light incidence surface, some of the light beams are reflected by the top reflection surface of the reflection member and emit from the top light emitting surface of the light guide plate, and other of the light beams are reflected by the bottom reflection surface of the reflection member and emit from the bottom light emitting surface of the light guide plate. - View Dependent Claims (7, 8, 9, 10)
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Specification