CN2802543Y

CN2802543Y - Improved structure of backlight mould set

Info

Publication number: CN2802543Y
Application number: CN 200520009045
Authority: CN
Inventors: 陈进辉; 徐久惠; 陈宗洪
Original assignee: K Bridge Electronics Co Ltd
Current assignee: K Bridge Electronics Co Ltd
Priority date: 2005-03-25
Filing date: 2005-03-25
Publication date: 2006-08-02
Anticipated expiration: 2015-03-25

Abstract

The utility model relates to an improved structure of a backlight module set. A transparent sheet is arranged below a diffuser plate, light rays of each light source can uniformly emit first by the transparent sheet by processing on the transparent sheet. The utility model not only can lead the light source to emit uniformly from the diffuser plate, but also can solve the problem that defective products are easily generated resulting in the waste of the cost when the processing is done on an ordinary diffuser plate.

Description

The structural improvement of module backlight

Technical field

The utility model relates to the structural improvement of module backlight, aims to provide a fraction defective that can reduce diffuser plate, to reduce production costs effectively.

Background technology

As shown in Figure 1, the back light module unit structure cut-open view of commonly using for general liquid crystal module, it is to be equipped with a reflection shield 10, some light sources 20, diffuser plate 30, following diffusion sheet 40, prismatic lens 50, reflecting polarized wafer from inside to outside in regular turn or to go up diffusion sheet 60 that the structure of whole module backlight is formed, and liquid crystal panel 70; Wherein, each light source 20 can be the fluorescent tube of vertical bar shape or U type or other continuous bending shapes and is laid between reflection shield 10 and the diffuser plate 30 with suitable spacing, and the display effect of its liquid crystal module promptly is made of the light that each light source 20 sheds; And several optics matrixs of 70 of also common on the market this diffuser plate 30 and liquid crystal panels can by the diffusion sheet of 1-3 sheet, the brightening piece of 0-2 sheet, the reflecting polarized wafer of 0-1 sheet etc. mutually collocation form, its effect is to make the light that passes through form diffusion, produce because of dull thread at the position at interval so as to improving, and on liquid crystal module, form phenomenon bright, the blanking bar district over against each light source 20.

Again, since the material of diffuser plate 30 be the clear plastic material as: PC (polycarbonate) or PMMA (polymethylmethacrylate) add diffusant [silicon dioxide (SiO for example ₂Or titania (TiO ₂) etc.) made white vaporific rectangular structure, it acts on the light that order passes through and evenly spreads, and the bottom side that it is arranged at down diffusion sheet 40, prismatic lens 50, reflecting polarized wafer or goes up number optics matrixs such as diffusion sheet 60, it then is made into the thicker platy structure of thickness for supporting this optics matrix, so the manufacturing cost of diffuser plate is higher.

Ask the diffusivity of diffuser plate 30 better and be generally, more have on diffuser plate 30 and process processing, for example: net-point printing; Yet, often because of mechanical or artificial carelessness cause defective products, make diffuser plate 30 in the process not as expected effect, can't use what is more, and then cause the increase of manufacturing cost, reduce its market competitiveness.

The utility model content

The structural improvement of the utility model module backlight, mainly be that the diffuser plate below is provided with a slide, on slide, process processing, the light of each light source can evenly be shed by slide earlier, light source is evenly shed by diffuser plate, more can solve when generally on diffuser plate, doing processing and handling, easily produce defective products and cause the situation of cost waste to produce.

Description of drawings

Fig. 1 is a structure cut-open view of commonly using module backlight;

Fig. 2 is the back light module unit structure cut-open view of the utility model first embodiment;

Fig. 3 is the back light module unit structure cut-open view of the utility model second embodiment;

Fig. 4 is the back light module unit structure cut-open view of the utility model the 3rd embodiment;

Fig. 5 is the back light module unit structure cut-open view of the utility model the 4th embodiment;

Fig. 6 is the enlarged diagram of chimeric mechanism in the utility model;

Fig. 7 is the back light module unit structure cut-open view of the utility model the 5th embodiment.

[figure number explanation]

10 reflection shields

11 pilot holes

12 Light modulating devices

20 light sources

30 diffuser plates

40 times diffusion sheets

50 prismatic lenses

60 reflecting polarized wafers

70 liquid crystal panels

80 Light modulating devices

81 dowels

82 locking holes

83 concavo-convex rags

84 curved surfaces

90 screws

100 chimeric mechanisms

Embodiment

For the clear structure of the present utility model of your auditor is formed, and the overall operation mode, cooperate graphic being described as follows now:

The structural improvement of the utility model module backlight, the basic structure of its whole module backlight is formed as shown in Figure 2, be to be equipped with a reflection shield 10, some light sources 20, diffuser plate 30, following diffusion sheet 40, prismatic lens 50, reflecting polarized wafer from inside to outside in regular turn or to go up diffusion sheet 60 equally, and liquid crystal panel 70; And in the present embodiment several optics matrixs of 70 of this diffuser plate 30 and liquid crystal panels can by the diffusion sheet of 1-3 sheet, the brightening piece of 0-2 sheet, the reflecting polarized wafer of 0-1 sheet etc. mutually collocation form, its effect is to make the light that passes through form diffusion; Wherein, each light source 20 can be the fluorescent tube of vertical bar shape or U type or other continuous bending shapes and is laid between reflection shield 10 and the diffuser plate 30 with suitable spacing, and the display effect of its liquid crystal module promptly is made of the light that each light source 20 sheds.

It focuses on: diffuser plate 30 belows are provided with a slide 80, process processing in slide 80 either sides or two sides, for example: net-point printing, sandblast, etching or atomizing processing etc., shown in the embodiment of Fig. 3, i.e. formed concavo-convex indentation 81 after slide 80 either sides or two sides are carried out etching, the light of each light source 20 can evenly be shed by slide 80 earlier, shed by diffuser plate 30 again, light source 20 is evenly shed by liquid crystal panel 70, make diffuser plate 30 not need other processing, and can solve when generally on diffuser plate 30, doing processing and handling, easily produce defective products and cause the situation of cost waste to produce.

Again, these slide 80 either sides are installed with diffusion sheet 90, as shown in Figure 4, perhaps two sides are installed with diffusion sheet 90, as shown in Figure 5, its fixed form can for attaching, sputter or in diffusion sheet 90 be provided with can with slide 80 mutual chimeric chimeric mechanisms 100, and the chimeric mechanism 100 in the present embodiment, as shown in Figure 6, be that binding face by diffusion sheet 90 and slide 80 is provided with dowel 91,80 corresponding pilot holes 82 that are provided with of this slide make diffusion sheet 90 and slide 80 tablings fix; Certainly also can process processing in diffusion sheet 90 either sides or two sides; This chimeric mechanism 100 also can be located at reflection shield 10 or other elements (as: plastic cement frame, retaining elements such as backboard) are positioned in the module backlight slide 80.

Moreover, can utilize diffusion sheet 90 and slide 80 to replace practising the diffuser plate 30 that has, as shown in Figure 7, make slide 80 place diffusion sheet 90 above or below or the two sides, to save the setting of diffuser plate 30, because of the material of diffusion sheet 90 identical with the material of diffuser plate 30, yet, the thinner thickness of diffusion sheet 90 is so cost is lower, can process processing (as: printing in diffusion sheet 90 or slide 80 either sides or two sides, etching, sputter, the atomizing of sandblast or other patterns is handled), can reach the effect that light source 20 is evenly shed by liquid crystal panel 70 equally, and also can solve simultaneously when generally on diffuser plate 30, doing processing and handling, easily produce defective products and cause the situation of cost waste to produce.

As mentioned above, the utility model provides the structure of another preferable feasible module backlight of liquid crystal module, so offer the application of novel patent in accordance with the law; Yet, above implementation and graphic shown in, be this creation preferred embodiment, be not to limit to this creation with this, be with, with approximate, identical person such as the structure of this creation, device, feature, all should belong to founding within purpose and the claim of this creation such as.

Claims

1, a kind of structural improvement of module backlight, its module backlight are to be equipped with a reflection shield, some light sources, diffuser plate, number light piece diaphragm from inside to outside in regular turn, and liquid crystal panel; Wherein, each light source is to be located between reflection shield and the diffuser plate so that suitable spacing is auxilliary; It is characterized in that:

This diffuser plate below is provided with a slide, processes processing on slide, and the light of each light source can evenly be shed by slide earlier, is shed by diffuser plate again.

2, the structural improvement of module backlight as claimed in claim 1 is characterized in that: this slide either side or two sides are installed with a diffusion sheet.

3, the structural improvement of module backlight as claimed in claim 2 is characterized in that: this diffusion sheet is to be attached on the slide.

4, the structural improvement of module backlight as claimed in claim 2 is characterized in that: this diffusion sheet is fixed on the slide by sputter.

5, the structural improvement of chess group backlight as claimed in claim 2 is characterized in that: this diffusion sheet is provided with and the mutual chimeric chimeric mechanism of slide.

6, the structural improvement of chess group backlight as claimed in claim 2 is characterized in that: this chimeric mechanism is that the binding face by diffusion sheet and slide is provided with dowel, the then corresponding pilot hole that is provided with of this slide, and diffusion sheet and slide tabling are fixed.

7, a kind of structural improvement of module backlight is characterized in that: its module backlight is to be equipped with a reflection shield, some light sources, diffusion sheet, slide, several pieces of blooming pieces from inside to outside in regular turn, and liquid crystal panel; Each light source is to be laid between reflection shield and the diffusion sheet with suitable spacing.

8, as the structural improvement of claim 1 or 7 described modules backlight, it is characterized in that: this slide either side or two sides can be processed processing.

9, as the structural improvement of claim 1 or 7 described modules backlight, it is characterized in that: this diffusion sheet either side or two sides can be processed processing.

10, the structural improvement of module backlight as claimed in claim 1 is characterized in that: this processing is treated to net-point printing, sandblast, etching or is the atomizing processing.

11, as the structural improvement of claim 1 or 7 described modules backlight, it is characterized in that: this blooming piece is by diffusion sheet, prismatic lens, reflecting polarized wafer are formed down.

12, as the structural improvement of claim 1 or 7 described modules backlight, it is characterized in that: this optics matrix is made up of the diffusion sheet of 1-3 sheet, the brightening piece of 0-2 sheet, the reflecting polarized wafer of 0-1 sheet.