Edge type backlight module and liquid crystal display for preventing light leakage
AssigneeShenzhen China Star Optoelectronics Technology Co., Ltd.
InventorChong Huang
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Abstract
An edge type backlight module for preventing light leakage is disclosed. The backlight module includes an aluminum extrusion, an edge type light source, an optical film set, and a plastic frame. The an adhesive bar is arranged at least partly in a space between the aluminum extrusion and the plastic frame to fix the aluminum extrusion and the plastic frame and to fill a gap between the aluminum extrusion and the plastic frame. A liquid crystal display with the above backlight module is also disclosed. With the configuration, the aluminum extrusion and the plastic frame may be easily fixed, and the light leakage may be avoided.
Claims14
An edge type backlight module, comprising:
- an aluminum extrusion comprises at least partly of a vertical plate;
- an edge type light source arranged on an internal sidewall of the vertical plate;
- a light guiding plate comprises a light incident surface and a light emitting surface, and the light incident surface faces toward the edge type light source;
- an optical film set is arranged on the light guiding plate and faces toward the light emitting surface of the light guiding plate;
- a plastic frame arranged in a rim of the aluminum extrusion and covers the rim of the optical film set;
- and
- an adhesive bar is arranged at least partly in a space between the aluminum extrusion and the plastic frame to fix the aluminum extrusion and the plastic frame and to fill a gap between the aluminum extrusion and the plastic frame.
An edge type backlight module, comprising:
- an aluminum extrusion comprises a bottom plate and a vertical plate extending from the bottom plate, and the vertical plate is vertical to the bottom plate;
- an edge type light source is arranged on an internal sidewall of the vertical plate;
- a light guiding plate comprises a light incident surface and a light emitting surface, and the light incident surface faces toward the edge type light source;
- an optical film set is arranged on the light guiding plate and faces toward the light emitting surface of the light guiding plate;
- a plastic frame arranged in a rim of the aluminum extrusion, the plastic frame comprises a side plate and a top plate extending from the side plate, and the plastic frame covers the rim of the optical film set;
- and
- a space between at least portions of an outer sidewall of the vertical plate and an internal wall of the side plate of the plastic frame, or/and a space between a top of the vertical plate and a top plate of the plastic frame are arranged with the adhesive bar to fix the aluminum extrusion and the plastic frame such that the gap between the aluminum extrusion and the plastic frame are filled.
Dependencies are inferred from the claim text.