Backlight module for liquid crystal display and liquid crystal display
First Claim
1. A backlight module for a liquid crystal display device, comprising:
- an LED, a light guide plate, and a backplane directly contacts with the light guide plate;
said backlight module also comprises a heatsink plate arranged on the outside of the backplane; and
said LED is linked with the heatsink plate in a mode of heat conduction;
wherein an isolating layer is arranged between said heatsink plate and said backplane, and said isolating layer is an air layer, wherein the thickness range of said air layer is from 0.5 mm to 4 mm.
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Accused Products
Abstract
The utility model discloses a backlight module for a liquid crystal display device and a liquid crystal display device. The backlight module comprises an LED and a backplane, wherein the backlight module also comprises a heatsink plate arranged on the outer of the backplane; and the LED is linked with the heatsink plate in the mode of heat conduction. The utility model, by arranging the LED on an extra heatsink plate which is arranged on the outer of the backplane, dissipates outward the heat emitted by the LED through the heatsink plate, lowers the temperature of the backlight cavity, and protects the optical components. At the same time, because the backplane is not directly used to dissipate heat, the gradient of temperature distribution on the backplane is reduced, thus, the gradient of temperature distribution in the backlight cavity is reduced and stress of the backlight cavity induced by the temperature gradient is also reduced.
8 Citations
12 Claims
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1. A backlight module for a liquid crystal display device, comprising:
- an LED, a light guide plate, and a backplane directly contacts with the light guide plate;
said backlight module also comprises a heatsink plate arranged on the outside of the backplane; and
said LED is linked with the heatsink plate in a mode of heat conduction;
wherein an isolating layer is arranged between said heatsink plate and said backplane, and said isolating layer is an air layer, wherein the thickness range of said air layer is from 0.5 mm to 4 mm. - View Dependent Claims (2, 3, 4, 5, 6)
- an LED, a light guide plate, and a backplane directly contacts with the light guide plate;
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7. A liquid crystal display device, comprising:
- a backlight module, the backlight module comprises an LED, a light guide plate, and a backplane directly contacts with the light guide plate;
said backlight module also comprises a heatsink plate arranged on the outside of the backplane; and
said LED is linked with said heatsink plate in the mode of heat conduction;
wherein an isolating layer is arranged between said heatsink plate and said backplane, and said isolating layer is an air layer, wherein the thickness range of said air layer is from 0.5 mm to 4 mm. - View Dependent Claims (8, 9, 10, 11, 12)
- a backlight module, the backlight module comprises an LED, a light guide plate, and a backplane directly contacts with the light guide plate;
Specification