US 8,553,174 B2 · Liquid crystal display and backlight module and back plate assembly thereof

Abstract

A back plate assembly includes a heat dissipating member and a back cover. The heat dissipating member includes a base plate for mounting a light guide plate and a side plate for mounting a LED light source. The base plate extends along a first direction, and includes a first surface facing a display and a second surface opposite to the first surface. The side plate is connected to the base plate, and extends along a second direction perpendicular to the first direction. The back cover is disposed on the base plate and is made of plastic material. The back cover includes a third surface facing the display and coplanar with or higher than the first surface. With the present disclosure, the manufacturing cost of the light guide plate is reduced and no complicated fixing structures are required to fix the light guide plate on the back plate.

Claims20

Dependent claims

A back plate assembly, comprising:

a heat dissipating member comprising:
a base plate for mounting a light guide plate, the base plate extending along a first direction and comprising a first surface facing a display and a second surface opposite to the first surface;
and
a side plate for mounting a LED light source, the side plate being connected to the base plate and extending along a second direction perpendicular to the first direction;
and
a back cover disposed on the base plate, the back cover being made of plastic material and comprising a third surface facing the display, the third surface being coplanar with the first surface or higher than the first surface.

3 more elements

A backlight module, comprising:

a back plate assembly, comprising:
a heat dissipating member comprising a base plate for mounting a light guide plate and a side plate connected to the base plate for mounting a LED light source, the base plate extending along a first direction and the side plate extending along a second direction perpendicular to the first direction, the base plate comprising a first surface facing a display and a second surface opposite to the first surface;
and
a back cover disposed on the first surface of the base plate, the back cover being made of plastic material and comprising a third surface facing the first display, the third surface being coplanar with or higher than the first surface of the base plate;
a LED light source mounted on the side plate;
a light guide plate mounted on the base plate and the back cover;
and
an optical film mounted on the light guide plate.

5 more elements

A liquid crystal display comprising a backlight module, the backlight module comprising:

a back plate assembly, comprising:
a heat dissipating member comprising a base plate for mounting a light guide plate and a side plate connected to the base plate for mounting a LED light source, the base plate extending along a first direction and the side plate extending along a second direction perpendicular to the first direction, the base plate comprising a first surface facing a display and a second surface opposite to the first surface;
and
a back cover disposed on the first surface of the base plate, the back cover being made of plastic material and comprising a third surface facing the first display, the third surface being coplanar with or higher than the first surface of the base plate;
a LED light source mounted on the side plate;
a light guide plate mounted on the base plate and back cover;
and
an optical film mounted on the light guide plate.

5 more elements

Dependencies are inferred from the claim text.

Liquid crystal display and backlight module and back plate assembly thereof

Life of this patent

Liquid crystal display and backlight module and back plate assembly thereof

Life of this patent

Abstract

Claims20