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Backlight module

A technology for backlight modules and lamp tubes, which is applied in optics, nonlinear optics, instruments, etc., and can solve the problems that the lamp tube fixtures cannot cope with it.

Active Publication Date: 2008-08-27
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Based on the above, with the increase of panel size, the specifications and requirements of the lamp fixtures are also more stringent, and the known lamp fixtures obviously cannot meet this demand

Method used

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Embodiment Construction

[0035] An embodiment of the present invention please refer to Figure 4 , the backlight module 40 at least includes a curved light tube 44 , a light tube fixing member 60 , and a bottom plate 52 . The curved lamp tube 44 has a curved portion 443 and two parallel portions 441 . The light tube fixing member 60 has two collars 603 respectively sleeved on the two parallel portions 441 of the curved light tube 44 . A reflective plate 61 is disposed between the base plate 52 and the curved light tube 44 to increase light utilization. And a diffusion plate 63 is disposed on the curved lamp tube 44 to make the light provided by the backlight module 40 uniform.

[0036] Referring to FIG. 5A and FIG. 5B , the lamp fixture 60 has a main body 601 , two arms of which are connected to two collars 603 . The width of the collar 603 is less than about 0.3 cm. It has been proved by experiments that under this width, the curved lamp tube 44 will not be pink due to contact heat dissipation. I...

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PUM

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Abstract

The invention relates to a back light module that at least includes a base board, at least a bend luminous tube, and a luminous tube fixing component, an identity and two ringers. The invention solves the fixing problem and does not cause luminous tube pink effect phenomenon. And the installing speed and working efficiency are improved.

Description

technical field [0001] The invention relates to a backlight module, in particular to a direct type backlight module applied to a liquid crystal display. Background technique [0002] The Liquid Crystal Display panel itself does not emit light, and needs a backlight to display images. Currently, there are many backlight technologies, and in about 20-inch liquid crystal display products, a direct type backlight module is often used as the backlight of the liquid crystal panel. The light source of the backlight is provided by a lamp tube, which usually has a long, U-shaped or curved serpentine lamp tube, as shown in Figure 1 and Figure 2 . [0003] Please refer to FIG. 1 , the backlight module 10 includes a bottom plate 12 and a plurality of lamp tubes 14 . Since the tube diameter of the lamp tube is very thin, a fixing piece is required to fix the lamp tube on the base plate. Taking the design of FIG. 1 as an example, since the lamp tube 14 is long, the lamp tube fixing par...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335
Inventor 沈昌和田恩和董志刚林文新
Owner AU OPTRONICS CORP
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