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Backlight module and liquid crystal display

A liquid crystal display and backlight module technology, which is applied in the directions of instruments, optics, light guides, etc., can solve the problems of reducing the light utilization rate of the backlight module, the non-reflection of the white reflective sheet, and affecting the picture display quality of the liquid crystal display, so as to improve the picture quality. Display quality effect

Inactive Publication Date: 2012-07-04
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0011] An object of the present invention is to provide a backlight module to solve the problem in the prior art that the light utilization rate of the backlight module is reduced because the white reflector cannot effectively guide the light from the light source outside the light guide plate into the light guide plate. , and then affect the technical problems of the picture display quality of the liquid crystal display

Method used

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  • Backlight module and liquid crystal display
  • Backlight module and liquid crystal display
  • Backlight module and liquid crystal display

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Embodiment Construction

[0033] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be practiced.

[0034] Figure 4 It is the structure of a preferred embodiment of the backlight module in the present invention, and the backlight module includes a light guide plate 41 and a light source 42 .

[0035] see Figure 4 , the light guide plate 41 includes a side incident surface 411 , an exit surface 412 connected to the side incident surface 411 , and a bottom surface 413 corresponding to the exit surface 412 . The light source 42 is arranged on the side incident surface 411 side of the light guide plate 41, the light source 42 includes several LEDs, and the packaging resin of each LED itself has a light emitting surface 421, and the light emitting surface 421 of the light source 42 emits light. The light is incident on the side incidence surface 411 of the light guide plate 41 . A light coupling ...

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Abstract

The invention discloses a backlight module, which comprises a light guide plate, a light source and a mirror reflection part. The light guide plate consists of a lateral incident surface, an emergent surface and a bottom surface, the emergent surface is connected with the lateral incident surface, and the bottom surface corresponds to the emergent surface; the light source consists of a luminous surface, the light source is disposed on one side of the lateral incident surface of the light guide plate, the luminous surface of the light source corresponds to the lateral incident surface of the light guide plate, and the mirror reflection part is arranged between the luminous surface of the light source and the lateral incident surface of the light guide plate; and light rays which are transmitted from the luminous surface of the light source to the outside of the light guide plate enter the light guide plate after being in mirror reflection by the mirror reflection part. The invention further discloses a liquid crystal display.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a backlight module and a liquid crystal display. Background technique [0002] With the continuous development of liquid crystal display technology, the requirements for liquid crystal display functions are also getting higher and higher. [0003] figure 1 It is a partial structural diagram of a backlight module in the prior art, and the backlight module includes a light source 11 and a light guide plate 12 . The light source 11 can be a light emitting diode (LED) for emitting light, and the light emitted by the light source 11 enters the light guide plate 12 . Wherein, the coupling efficiency between the light source 11 and the light guide plate 12 is directly related to the light utilization rate of the entire backlight module. [0004] The light source 11 in the prior art generally adopts approximately Lambertian LEDs, which have characteristics such as low v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V7/22F21V8/00G02F1/13357
CPCG02B6/0031G02B6/00
Inventor 胡哲彰贺虎
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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