Back light module

A backlight module and substrate technology, applied in optics, light source fixation, nonlinear optics, etc., can solve the problems of reducing area, loosening of support frame and lamp tube, and reduction of glue viscosity, so as to achieve easy assembly, increase The effect of backlight uniformity, manufacturing cost reduction

Inactive Publication Date: 2010-06-09
华映视讯(吴江)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in addition to the inconvenient disassembly or assembly of the lamp tube, it is also easy to reduce the viscosity of the glue due to the high temperature generated by the lamp tube, or cause the support frame and the lamp to be damaged after long-term use. The tubes are loose and affect the reliability of the backlight module
[0005] In addition, the supporting frame and the thimble of the existing direct-lit backlight module are placed separately on different positions on the bottom plate. This design will reduce the area of ​​the reflector reflecting the light of the lamp tube and reduce the uniformity of the backlight.

Method used

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Examples

Experimental program
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no. 1 example

[0044] Figure 2A It is a schematic diagram of the supporting structure of the first embodiment of the present invention. Please refer to Figure 2A , in the first embodiment, each support structure 140 includes a first base material 142 a , at least one lamp tube supporting portion 144 , a second base material 142 b , at least one lamp tube fixing portion 145 and at least one thimble 146 . The lamp support portion 144 is disposed on the first base material 142a, and the second base material 142b is adjacent to the first base material 142a. The light tube fixing portion 145 is disposed on the second base material 142b, wherein each light tube supporting portion 144 is provided corresponding to one light tube fixing portion 145 for supporting and fixing one of the light tubes 120 . The thimble 146 is disposed on the first substrate 142a or the second substrate 142b (in FIG. 2A, the thimble 146 is disposed on the first substrate 142a as an example for illustration), and the th...

no. 2 example

[0050] Figure 3A is a schematic diagram of the support structure fixed to the bottom plate in the second embodiment of the present invention, Figure 3B for Figure 3A An exploded schematic of the support structure and baseplate. Please also refer to Figure 3A and Figure 3B , this embodiment is similar to the first embodiment, the difference is: in this embodiment, each supporting structure 140 further includes at least one fixing member 147, which is arranged on the first substrate 142a and the second substrate 142b between. The fixing member 147 includes a protruding portion 147a and a recessed portion 147b, the protruding portion 147a is disposed on the side surface of the first base material 142a, and the recessed portion 147b is disposed on the side surface of the second base material 142b.

[0051] Please also refer to Figure 3A and 3B , when assembling the lamp tube 120, put the lamp tube 120 into the lamp tube support part 144 first, and then insert the side...

no. 3 example

[0055] Figure 4A It is a schematic diagram of the support structure fixed on the bottom plate according to the third embodiment of the present invention. Please refer to Figure 4A , this embodiment is similar to the first embodiment, the difference is that in this embodiment, the bottom plate 110a further includes at least one first opening 112a and at least one second opening 112b, and each supporting structure 140 further includes at least A fastening component 148 and at least one moving piece 149 . The fastener 148 is disposed on the bottom of one of the first substrate 142a and the second substrate 142b (Figure 4A is an example of the fastener 148 being disposed on the first substrate 142a for illustration), and from the bottom plate The first opening 112a of 110a protrudes from the bottom plate 110a and is buckled on the bottom plate 110a. The moving piece 149 is arranged on the other bottom of the first base material 142a and the second base material 142b (figure 4...

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PUM

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Abstract

The invention relates to a back light module which comprises a frame, a plurality of lamp tubes, a diffuser plate and a plurality of support structures, wherein the frame is provided with a bottom plate, the lamp tubes are arranged in the frame, the diffuser plate is arranged above the lamp tubes, and the support structures are arranged on the bottom plate to support the lamp tubes and the diffuser plate. Each support structure comprises a first substrate, at least one lamp tube support part, a second substrate, at least one lamp tube fixing part and at least one ejector pin. The lamp tube support part is arranged on the first substrate, and the second substrate abuts upon the first substrate. The lamp tube fixing part is arranged on the second substrate, wherein each lamp tube support part corresponds to one lamp tube fixing part and is used for supporting and fixing one of the lamp tubes. The ejector pin is arranged on the first substrate or the second substrate to support the diffuser plate.

Description

technical field [0001] The invention relates to a backlight module, in particular to a direct type backlight module (Direct Type Backlight Module). Background technique [0002] With the progress of science and technology, the technology of the display is constantly developing, and the thin and light flat panel display (FlatPanel Display, FPD) gradually replaces the traditional heavy cathode image tube display (Cathode RayTube, CRT). Common flat panel displays include plasma displays (Plasma Display Panel, PDP) and liquid crystal displays (Liquid Crystal Display, LCD), which can be widely used in personal digital assistants, notebook computers, mobile phones and televisions. [0003] Taking a liquid crystal display as an example, the liquid crystal display includes a liquid crystal panel and a backlight module. The liquid crystal panel is composed of two transparent substrates and a liquid crystal layer arranged between the two transparent substrates, and the backlight modu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V19/00F21V5/08F21V17/00G02F1/13357
Inventor 傅肇垣江政升谢忠志
Owner 华映视讯(吴江)有限公司
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