LCD device

Abstract

The invention relates to a liquid crystal display including a first framework, a light guide plate, a second framework, a light emitting diode and a liquid crystal panel. The light guide plate is arranged on the first framework and provided with a light incidence surface. The second framework covers the upper part of the partial light guide plate. The light emitting diode is arranged on the inner side of the second framework and abuts on the light incidence surface of the light guide plate. The liquid crystal panel is arranged between the second framework and the light guide plate.

Description

technical field [0001] The invention relates to a liquid crystal display, in particular to a liquid crystal display whose light source is a light emitting diode. Background technique [0002] At present, light emitting diodes (LEDs) are used as light sources for displays, and most of them use light bar manufacturing methods. Some components of the backlight module such as the light guide plate are combined to form the light source of the backlight module. [0003] Please refer to the schematic diagram of the structure of the existing liquid crystal display figure 1 . Generally, in the liquid crystal display 10 , the light source is a light bar 15 . The light bar 15 is formed by combining the light emitting diodes 11 and the carrier substrate 12 , and the light bar 15 is fixed on the plastic frame 13 . Therefore, to make figure 1 For the liquid crystal display 10 , the LED 11 and the carrier substrate 12 must first be combined to form the light bar 15 . Since the light ...

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Problems solved by technology

However, the heat dissipation path through the carrier substrate 12 and the plastic frame 13 is long, and the light emitting diodes 11 of the light bar 15 are likely to suffer from poor heat dissipation.

[0004] To sum up, if the light emitting diodes 11 are first fixed on the carrier substrate 12 to form the light bar 15 in the prior art, the manufacturing cost will be increased because the carrier substrate 12 is needed; in addition, because the thickness of the carrier substrate 12 is relatively Thick, so that the distance between the light-emitting surface of the light-emitting diode 11 and the display panel is shortened, and the ratio (A / P ratio) of "the distance P between the light-emitting diodes 11" and "the distance A between the light-emitting diode and the display panel" is smaller Therefore, if the design or device is not good, it may cause the headlight effect, or the light mixing distance is reduced, so that the light mixing effect is not perfect; The heat dissipation effect of the light-emitting diode is greatly reduced, so the light-emitting function, life and quality of the light-emitting diode will be reduced

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