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Backlight module and liquid crystal display device with same

A technology of a liquid crystal display device and a backlight module, which is applied to lighting devices, fixed lighting devices, components of lighting devices, etc., can solve problems such as increasing the thickness of the liquid crystal display device, increasing the thickness of the backlight module 100, and improving the heat dissipation effect , to achieve the effect of thinning

Active Publication Date: 2014-04-16
CHANGSHA HKC OPTOELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this improves the heat dissipation effect, it increases the thickness of the backlight module 100, thereby increasing the thickness of the entire liquid crystal display device, which is contrary to the current thinning trend.

Method used

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

Examples

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Embodiment Construction

[0023] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.

[0024] see figure 2 , the present invention provides a backlight module, comprising: a backplane 2, a light guide plate 4 arranged in the backplane 2, a backlight 6 arranged in the backplane 2, a The heat dissipation plate 8 and the bottom reflection sheet 9 disposed between the light guide plate 4 and the back plate 2 . The light emitted by the backlight source 6 is reflected by the bottom reflection sheet 9 or directly enters the light guide plate 4, and propagates in the light guide plate 4, thereby turning the point light source into a surface light source.

[0025] Specifically, see figure 2 , the backplane 2 includes a bottom plate 22 and a side plate 24 vertically connected to the bottom plate 22, the bottom plate 22 of the backplan...

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PUM

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Abstract

The invention provides a backlight module and a liquid crystal display device with the backlight module. The backlight module comprises a back plate (2), a light guide plate (4) arranged in the back plate (2), a backlight source (6) arranged in the back plate (2), and a heat dissipation plate (8) arranged between the backlight source (6) and the back plate (2). The back plate (2) comprises a bottom plate (22) and side plates (24) perpendicularly connected with the bottom plate (22). The backlight source (6) comprises a PCB (62) and an LED chip (64) for positioning pieces on the PCB (62), wherein the PCB (62) is installed on the bottom plate (22) of the back plate (2) and the heat dissipation plate (8). The PCB (62) comprises an installation portion (622) and a lap joint portion (624) connected with the installation portion (622). The heat dissipation plate (8) comprises a supporting portion (82) and a bearing portion (84) connected with the supporting portion (82). The lap joint portion (624) is connected to the bearing portion (84) in a lap joint mode. The light guide plate (4) is borne by the supporting portion (82) and the lap joint portion (624).

Description

technical field [0001] The invention relates to the field of plane display, in particular to a backlight module and a liquid crystal display device using the backlight module. Background technique [0002] Liquid Crystal Display (LCD) has many advantages such as thin body, power saving, and no radiation, and has been widely used, such as mobile phones, personal digital assistants (PDAs), digital cameras, computer screens or laptop screens wait. [0003] Most of the liquid crystal display devices currently on the market are backlight liquid crystal display devices, which include a housing, a liquid crystal panel disposed in the housing, and a backlight module disposed in the housing. The structure of a traditional liquid crystal panel consists of a color filter substrate (Color Filter), a thin film transistor array substrate (Thin Film Transistor Array Substrate, TFT Array Substrate), and a liquid crystal layer (Liquid Crystal Layer) arranged between the two substrates. Its...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V19/00F21V17/10G02F1/13357F21Y101/02
CPCG02B6/0073G02B6/0083G02B6/0088G02F1/133628G02B6/005G02B6/0085G02B6/009G02F1/133308G02F1/1336G02F1/13332
Inventor 俞刚
Owner CHANGSHA HKC OPTOELECTRONICS CO LTD
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