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US 8,616,750 B2Granted
Backlight module and display device using the same
AssigneeQisda Corporation
InventorsYi-Cheng Kuo, I-Ling Chen
Life of this patent
Estimating the term…
Abstract
A backlight module including a first casing, a light guiding member, a light source and a limiting structure is provided. The first casing has a top portion and a first side portion connected to the top portion. The light guiding member is located at an inner side of the first side portion and has a light incident surface and a top surface. The light source is located at the inner side of the first side portion and is disposed adjacent to the light guiding member. The light source has a light emitting surface facing the light incident surface. The limiting structure is protruded from a wall below the top portion and located above at least part of the light source and at least part of the top surface of the light guiding member.
Claims19
A backlight module, comprising:
- a first casing having a top portion and a first side portion, wherein the first side portion is connected to the top portion;
- a light guiding member located at an inner side of the first side portion, wherein the light guiding member has a light incident surface and a top surface;
- a circuit board located at the inner side of the first side portion;
- a light source located at the inner side of the first side portion and disposed adjacent to the light guiding member, wherein the light source is disposed on the circuit board and has a light emitting surface facing the light incident surface;
- and
- a limiting structure protruded along the direction of the height of the circuit board from a wall below the top portion and located above at least part of the light source and at least part of the top surface of the light guiding member so that the limiting structure can limit the light incident surface and the light emitting surface to be at the same height.
3 more elements
A display device, comprising:
- a casing;
- a display panel disposed inside the casing, wherein the display panel has a display surface;
- and
- a backlight module disposed inside the casing, wherein the backlight module comprises:
- a first casing having a top portion and a first side portion, wherein the first side portion is connected to the top portion;
- a light guiding member located at an inner side of the first side portion, wherein the light guiding member has a light incident surface and a top surface, the top surface is substantially parallel to the display surface, and the light incident surface is substantially perpendicular to the display surface;
- a circuit board located at the inner side of the first side portion;
- a light source located at the inner side of the first side portion and disposed adjacent to the light guiding member, wherein the light source is disposed on the circuit board and has a light emitting surface facing the light incident surface;
- and
- a limiting structure protruded along the direction of the height of the circuit board from a wall below the top portion and located adjacent to and above at least part of the light source and at least part of the top surface of the light guiding member for limiting the relative movement between the light incident surface and the light emitting surface so that the limiting structure can limit the light incident surface and the light emitting surface to be at the same height.
7 more elements
A display device, comprising:
- a casing;
- a display panel disposed inside the casing and having a display surface;
- and
- a backlight module disposed inside the casing, wherein the backlight module comprises:
- a first casing having a top portion and a first side portion, wherein the first side portion is connected to the top portion;
- a light guiding member located at an inner side of the first side portion, wherein the light guiding member has a light incident surface and a top surface, the top surface is substantially parallel to the display surface, and the light incident surface is substantially perpendicular to the display surface;
- a circuit board located at the inner side of the first side portion;
- a light source located at the inner side of the first side portion, located below the top portion and disposed adjacent to the light guiding member, wherein the light source is disposed on the circuit board and has a light emitting surface facing the light incident surface;
- a limiting structure protruded along the direction of the height of the circuit board from a wall below the top portion and located above at least part of the light source and at least part of the top surface of the light guiding member so that the limiting structure can limit the light incident surface and the light emitting surface to be at the same height;
- and
- a reflective layer, disposed above the light source.
8 more elements
Dependencies are inferred from the claim text.