Backlight module
AssigneeHon Hai Precision Industry Co., Ltd.
InventorPO-CHOU CHEN
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Abstract
A backlight module includes a light guiding board and a number of LED light sources located a lateral side of the light guiding board. The light guiding board includes a top surface and a bottom surface opposite to the top surface. A slot is defined at the lateral side of the light guiding board adjacent to the LED light sources. The slot is depressed away from the LED light sources. The slot extends along a direction where the LED light sources are arranged along. Confronting faces of a plurality of protrusions defining the slot refract the light when the light is emitted from the LED light sources and enters into the light guiding board to change a transmitting direction of the light. The bottom surface of the light guiding board is a light reflecting surface.
Claims9
A backlight module, comprising:
- a light guiding board, the light guiding board comprising a top surface and a bottom surface opposite to the top surface, the top surface being a light output surface of the backlight module;
- and
- a plurality of LED light sources located a lateral side of the light guiding board;
- wherein a plurality of protrusions is formed on the lateral side of the light guiding board, a slot is defined in the plurality of protrusions at the lateral side of the light guiding board adjacent to the LED light sources, the slot is depressed away from the LED light sources, the slot extends along a direction where the LED light sources are arranged along, the slot is located between confronting faces of each two adjacent top and bottom protrusions, the confronting faces refract the light when the light enters into the light guiding board to change a transmitting direction of the light toward at least one of the top and bottom surfaces, and the bottom surface of the light guiding board is a light reflecting surface.
Dependencies are inferred from the claim text.