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Direct downward type backlight module

A backlight module, direct-type technology, applied in optics, nonlinear optics, instruments, etc., can solve problems such as bending or twisting of protrusions 112, difficulty in manufacturing, low assembly safety, etc. The effect of high structural strength and easy disassembly

Inactive Publication Date: 2008-09-17
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The protrusion 112 is easy to cause bending or twisting, etc., so that the structural strength of the light box 11 is reduced, and the actual production is more difficult.
In addition, although this lamp tube positioning and fixing method can fix the lamp tube 10, there are problems such as poor positioning of the lamp tube and low assembly safety.
[0005] People in the industry have also modularized the lamp tube and then put it into the light box shell. The lamp tube electrode is welded on the circuit board. Although this method can effectively position the lamp tube and has better structural strength, it is difficult to assemble the lamp tube. and replacement is more difficult

Method used

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  • Direct downward type backlight module
  • Direct downward type backlight module
  • Direct downward type backlight module

Examples

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0017] see figure 2 , is an embodiment of the backlight module of the present invention.

[0018] The backlight module 2 includes a bottom plate 21 , a plurality of lamp tubes 20 , two opposite lamp tube fixing seats 22 and two opposite lamp tube protection frames 23 .

[0019] The bottom plate 21 is a plane plate, and one surface 212 is a smooth plane, which is used for setting the lamp tube 20 and reflecting the light from the lamp tube 20 . Two opposite sides of the surface 212 are respectively provided with a plurality of screw holes 214 .

[0020] The lamp tube 20 is generally a cold cathode fluorescent lamp. Electrode sleeves 202 are provided at the electrodes (not shown) at both ends of the lamp tube 20 . The electrode sleeves 202 are made of electrical insulating materials, generally rubber materials. The plurality of light tubes 20 are arranged in...

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PUM

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Abstract

The invention relates to direct-down backlight pattern assembly that includes a base plate, at least one lamp mounted on the two ends of electrodes, and the lamp fixed seating mounted on the surface of base plate facing the two sides of the lamp. The lamp fixed seating includes at least one buckling tool that corresponding to the electrode cap and it's used to position and fix the electrode cap. The lamp can be fixed on the base plate effectively by the buckling tool of lamp fixed seating, and make the disassembly more easy.

Description

【Technical field】 [0001] The invention relates to a direct type backlight module applied to a liquid crystal display. 【Background technique】 [0002] Since the liquid crystal itself of the liquid crystal display panel does not have light-emitting characteristics, in order to achieve the display effect, it is necessary to provide the liquid crystal display panel with a surface light source device, such as a backlight module, whose function is to supply a surface light source with sufficient brightness and uniform distribution to the liquid crystal display panel. The backlight module includes a backlight source and optical components such as a light guide plate. Depending on the position of the backlight source, the backlight module can generally be divided into two types: edge-lit and direct-lit. [0003] Please refer to FIG. 1 , a direct-lit backlight module 1 in the prior art includes a plurality of lamp tubes 10 and a lamp box 11 arranged in parallel with each other. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357G02F1/133G02F1/1335
CPCG02F1/133604G02F1/133608
Inventor 章绍汉史吏洲邹华东刘雨芽
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD