Backlight module and liquid crystal display device

A technology of backlight module and light source assembly, which is applied in the direction of lighting devices, fixed lighting devices, lighting device components, etc., can solve the problems of light coupling efficiency drop, falling off, and easy deformation between the light source assembly 15 and the light guide plate 11, and achieve Simple structure, enhanced stability, not easy to deform

Inactive Publication Date: 2012-09-12
SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because the plastic frame 17 is generally made of plastic material, and the plastic material is easily deformed by force, which will cause the reflector 14 attached thereto to easily fall off from the surface of the plastic frame 17, resulting in a decrease in the coupling efficiency between the light source assembly 15 and the light guide plate 11.

Method used

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

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Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] refer to figure 2 , figure 2 It is a structural schematic diagram of the first embodiment of the backlight module of the present invention. The embodiment of the present invention includes: a light guide plate 21 , a reflective layer 22 , a back frame 23 , a light source component 24 and an optical film component 25 . Wherein, the optical film assembly 25 , the light guide plate 21 , the reflective layer 22 and the back frame 23 are arranged sequentially from top to bottom. in particular:

[0023] The light guide plate 21 includes a light incident surface 210 , a light exit surface 211 connected to the light incident surface 210 , and a bottom surface 212 opposite to the light exit surface 211 .

[0024] The reflective layer 22 is arranged on one side of the bottom surface 212 of the light guide plate 21, and is used to reflect t...

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PUM

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Abstract

The invention discloses a backlight module and a liquid crystal display device. The backlight module comprises a light guide plate, a light source assembly, a back frame and a reflector body. The light guide plate comprises a light inlet face, a light outlet face connected with the light inlet face and a bottom face opposite to the light outlet face. Light sent by the light source assembly is reflected by the reflector body to enter from the light inlet face of the light guide plate to the light guide plate. The back frame is arranged on one side of the bottom face of the light guide plate. The reflector body is formed by extending from one end of the back frame close to the light inlet face along the direction close to the light inlet face. By means of the mode, the backlight module and the liquid crystal display device can save materials, strengthen stability of optical components, and improve optical coupling efficiency between the light source assembly and the light guide plate.

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 device. Background technique [0002] like figure 1 As shown, in the prior art, a bottom light type backlight module includes: a light guide plate 11 , an aluminum extrusion 12 , a back plate 13 , a reflector 14 , a light source assembly 15 and an optical film 16 . Wherein, the reflector 14 is arranged on the surface of the plastic frame 17 facing the light emitting direction of the light source assembly 15, and the light source assembly 15 is accommodated in a housing portion (not marked) on the aluminum extrusion 12, and the light emitted by the light source assembly 15 is reflected by the reflector 14 incident into the light guide plate 11. [0003] Because the plastic frame 17 is generally made of plastic material, and the plastic material is easily deformed by force, which will cause the reflector 14 attached t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V13/02G02F1/13357F21Y101/02F21V29/505
CPCG02B6/0031G02B6/0085G02B6/0091
Inventor 黄建发
Owner SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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