Light guide plate, backlight module and liquid crystal display device including same
AssigneeHon Hai Precision Industry Co., Ltd.
InventorYUNG-CHANG TSENG
Life of this patent
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Abstract
A backlight module includes a light guide plate and a plurality of light sources. The light guide plate includes a light incident part and a flat panel. The light incident part and the flat panel have a common bottom surface. The maximum height of the wedge-shaped light incident part is greater than a height of the flat panel. The light incident part includes a light incident surface perpendicular to the bottom surface and a sloped surface sloping relative to the light incident surface. The flat panel includes a light emitting surface opposite to the bottom surface. The light incident part further includes a reflective layer on the sloped surface. The plurality of light sources is positioned adjacent to the light incident surface.
Claims19
A light guide plate comprising:
- a light incident part;
- and
- a flat panel;
- wherein
- the light incident part and the flat panel have a common bottom surface, a maximum height of the light incident part is greater than a height of the flat panel, the light incident part comprises a light incident surface and a sloped surface, the light incident surface is perpendicular to the bottom surface, the sloped surface slopes relative to the light incident surface and connects to the flat panel, the flat panel comprises a light emitting surface opposite to the bottom surface, and the light incident part further comprises a reflective layer on the sloped surface.
A backlight module comprising:
- a light guide plate comprising a light incident part and a flat panel, the light incident part and the flat panel having a common bottom surface, a maximum height of the light incident part being greater than a height of the flat panel, the light incident part comprising a light incident surface and a sloped surface, the light incident surface perpendicular to the bottom surface, the sloped surface sloping relative to the light incident surface and connecting to the flat panel, the flat panel comprising a light emitting surface opposite to the bottom surface, the light incident part further comprising a reflective layer on the sloped surface;
- and
- a plurality of light sources positioned adjacent to the light incident surface.
A liquid crystal display device, comprising:
- a backlight module comprising:
- a light guide plate comprising a light incident part and a flat panel, the light incident part and the flat panel having a common bottom surface, a maximum height of the light incident part being greater than a height of the flat panel, the light incident part comprising a light incident surface and a sloped surface, the light incident surface perpendicular to the bottom surface, the sloped surface sloping relative to the light incident surface and connecting to the flat panel, the flat panel comprising a light emitting surface opposite to the bottom surface, the light incident part further comprising a reflective layer on the sloped surface;
- and
- a plurality of light sources positioned adjacent to the light incident surface;
- and
- a liquid crystal display panel above the light emitting surface.
Dependencies are inferred from the claim text.