CN2898855Y

CN2898855Y - Intensifying diffusion structure

Info

Publication number: CN2898855Y
Application number: CN 200620001484
Authority: CN
Inventors: 陈进辉; 陈宗洪
Original assignee: K Bridge Electronics Co Ltd
Current assignee: K Bridge Electronics Co Ltd
Priority date: 2006-01-24
Filing date: 2006-01-24
Publication date: 2007-05-09
Anticipated expiration: 2016-01-24

Abstract

A intensifying diffusion structure of the utility model at least comprises a plastic as the transparent substrate, a diffusion layer and a brightness enhancement layer, such as PET (polyethylene terephthalate ), PAMMA (polymethylmethacrylate beads), MS (Acrylonitrile/methyl Methacrylate), PS (polystyrene) or PC (polycarbonate), with an in-light surface, an out-light surface and the diffusion surface comprising plural diffusion particles or acryl particles arranged on one side of the transparent substrate (in light surface or out light surface). The brightness enhancement layer is arranged on the other side of the diffusion layer. The refractive index of diffusion particles and acryl particles, the light can be refracted with diffusion effect. Additionally, the brightness enhancement effect can be achieved with the light passing through the brightness enhancement layer.

Description

Diffusion structure adds lustre to

Technical field

The utility model relates to the structural improvement of the diffusion that adds lustre to, especially refer to a kind of on the incidence surface and exiting surface of plastic, transparent base material, be provided with diffusion layer and lustre adding layer, can make diffusion layer be arranged at incidence surface, and lustre adding layer is located at other side, or diffusion layer is arranged at exiting surface, and lustre adding layer is located at other side, effectively light refraction is produced the structure of diffusion and light enhancing effect.

Background technology

At improving rapidly of multimedia society, mostly be indebted to the tremendous progress of semiconductor subassembly or man-machine display device, with regard to display, cathode-ray tube (CRT) (Cathode Ray Tube, be called for short CRT) because of having excellent display quality and its economy, monopolize monitor market in recent years always.Yet, operate the environment of most terminating machine/display equipments on the table for the individual, or with the incision of the viewpoint of environmental protection, if predicted with the trend of saving the energy, cathode-ray tube (CRT) is because of still existing a lot of problems in space utilization and the energy resource consumption, and, can't effectively provide solution for the demand of light, thin, short, little and low consumpting power.Therefore, have that high image quality, space availability ratio are good, the LCD of low consumpting power, superiority such as radiationless to be to become the main flow in market gradually, it should be noted that, because the liquid crystal panel itself in the LCD can't be luminous, so must provide liquid crystal panel required area source by backlight module, make liquid crystal panel reach the effect of demonstration, obtain enough brightness and contrast simultaneously.

And be the STRUCTURE DECOMPOSITION figure of known backlight module as shown in Figure 1, this backlight module 1 is mainly by a framework 11, one reflector plate 12, one light guide plate 13 and several blooming pieces 14 constitute, blooming piece among this figure is three formations, the assembling mode of existing backlight module 1 is disposed at reflector plate 12 in the framework 11, then light guide plate 13 is disposed on the reflector plate 12, afterwards three blooming pieces 14 are disposed on the light guide plate 13 one by one, at last with the above-mentioned framework 11 of a metal framework 15 carryings, reflector plate 12, light guide plate 13 and three blooming pieces 14 and finish assembling.

It should be noted that, in order to promote the performance of backlight module 1 integral brightness and brightness, usually on light guide plate 13, dispose a plurality of blooming pieces (as diffusion sheet, brightening piece or reflecting polarized wafer), disposing three blooming pieces 14 with this figure on light guide plate 13 is example, because these three blooming pieces 14 are all independent member, so need repeat to assemble three times, so complicated Assembly Action is to cause the principal element that improves in backlight module 1 assembly cost and man-hour.In addition, need just to be reached, therefore also improve in cost that cuts and man-hour thereupon through cutting three times owing to make above-mentioned three blooming pieces.

The utility model content

In view of this, the utility model provides a kind of have the simultaneously diffusion and the diffusion structure that adds lustre to of light enhancing effect, can reduce the use of diffusion sheet in traditional multi-layer optical membrane and brightening piece by this diffusion structure that adds lustre to, and effectively reduce assembly cost.

The add lustre to fundamental purpose of diffusion structure of the utility model, be that this diffusion structure that adds lustre to includes at least: a transparent base, diffusion layer and lustre adding layer, its transparent base is a plastic material, as PET (polyethylene terephthalate), PMMA (polymethylmethacrylate), MS (copolymer of methyl methacrylatestyrene), PS (polystyrene) or PC (polycarbonate) etc. make, and have incidence surface and an exiting surface, diffusion layer then comprises plural diffusion particle, or include plural diffusion particle and acryl particle, be arranged at transparent base incidence surface or exiting surface wherein the one side on, lustre adding layer then is arranged at the side in addition that transparent base corresponds to diffusion layer, utilize diffusion particle or acryl particle to have refractive index, light refraction can be produced diffusion effect, also can make light produce light enhancing effect simultaneously through lustre adding layer.

Description of drawings

Fig. 1 is for practising the STRUCTURE DECOMPOSITION figure that backlight module is arranged;

Fig. 2 is the diffusion structure cut-open view that adds lustre to of first embodiment in the utility model;

Fig. 3 A, B, C, D are the user mode reference diagram of the diffusion structure that adds lustre in this;

Fig. 4 is the diffusion structure cut-open view that adds lustre to of second embodiment in the utility model;

Fig. 5 to Fig. 8 is the structural representation of the various embodiment of lustre adding layer in the utility model.

[figure number explanation]

1 backlight module, 22 diffusion layers

11 frameworks, 221 diffusion particles

12 reflector plates, 23 lustre adding layers

13 light guide plate, 232 prisms

14 blooming pieces, 233 geometric schemes

15 metal frameworks, 3 light sources

2 diffusion structure 4 reflection shields that add lustre to

21 transparent bases, 5 diffuser plates

211 incidence surfaces, 6 light guide plate

212 exiting surfaces

Embodiment

The utility model diffusion structure that adds lustre to can be applicable in the backlight module, when light adds lustre to diffusion structure by this, will be through the light diffusion and the enhanced shine of this diffusion structure that adds lustre to, and become high all light of neat degree, so mat is used the use that this diffusion structure that adds lustre to can reduce diffusion sheet in traditional multi-layer optical membrane and brightening piece, and effectively reduce assembly cost, and can improve the brightness of backlight module quality.

This diffusion structure 2 that adds lustre to is by a transparent base 21, one diffusion layer 22 is formed with lustre adding layer 23, as shown in Figure 2, its transparent base 21 is a plastic material as PET (polyethylene terephthalate), PMMA (polymethylmethacrylate), MS (copolymer of methyl methacrylatestyrene), PS (polystyrene) or PC (polycarbonate) etc. make, and have incidence surface 211 and an exiting surface 212, and diffusion layer 22 is arranged on the transparent base incidence surface 211, its diffusion layer 22 also comprises plural diffusion particle 221, or include plural diffusion particle and acryl particle, can utilize coating, the mode of spraying or atomizing is arranged on the incidence surface 211, lustre adding layer 23 then is arranged on the exiting surface 212, it can utilize bright enhancement film to attach, coating, pressing, roll extrusion, attach or coating after again mode such as pressing or roll extrusion or straight forming be arranged on the exiting surface 212, also or in directly utilizing roll extrusion on the bright enhancement film or on exiting surface, mode such as pressing or straight forming forms or is provided with plural prism 232 or geometric scheme 233 or the shape of light enhancing effect arranged or structure 234 (as Fig. 5 to shown in Figure 8), to become the diffusion structure 2 that adds lustre to.

Certainly also visual required and use the transparent base of different-thickness, to form different tabular of thickness diffusion structure or the sheet diffusion structure that adds lustre to that adds lustre to, when being applied to general direct type backlight module as shown in Figure 3A, this diffusion structure 2 that adds lustre to can form the tabular diffusion structure that adds lustre to and be arranged at reflection shield 4 tops with plural light source 3; Also can form sheet and add lustre to diffusion structure and be placed in diffuser plate 5 tops default on the reflection shield 4, shown in Fig. 3 B; Also can be applicable to general side light type back light module in addition, shown in Fig. 3 C, its diffusion structure 2 that adds lustre to can form the tabular diffusion structure that adds lustre to, and plural light source 3 then is arranged at the side of the diffusion structure 2 that adds lustre to; Its diffusion structure 2 that adds lustre to also can form sheet and add lustre to diffusion structure and be placed in default light guide plate 6 tops, shown in Fig. 3 D; And some light sources 3 have refractive index via the diffusion particle 221 or the acryl particle of diffusion layer 22, please consult shown in Figure 2 simultaneously, with light refraction to produce the light diffusion effect, and again by lustre adding layer 23 back and have light enhancing effect, light source 3 is evenly shed, forming high all light of neat degree, so can reduce the use of diffusion sheet in traditional multi-layer optical membrane and brightening piece by this diffusion structure that adds lustre to, and effectively reduce assembly cost, and can improve the brightness of backlight module quality.

Certainly, this diffusion layer 22 also can be arranged on the transparent base exiting surface 212 as shown in Figure 4, and lustre adding layer 23 then is arranged on the incidence surface 211, can make equally light by the time reach diffusion and the effect that adds lustre to.

As mentioned above, the utility model provides a preferable feasible diffusion structure improvement that adds lustre to, so offer the application of novel patent in accordance with the law; Yet, above implementation and graphic shown in, it is one of the utility model preferred embodiment, be not to limit to the utility model with this, therefore, approximate with structure of the present utility model, device, feature etc. or identical mutually such as, all should belong to of the present utility model founding within purpose and the claim.

Claims

1, a kind of diffusion structure that adds lustre to is characterized in that it includes at least:

One plastic material is made, and has the transparent base of incidence surface and exiting surface;

One can produce light refraction the diffusion layer of diffusion effect, be arranged at transparent base incidence surface or exiting surface wherein the one side on;

One makes light produce the lustre adding layer of light enhancing effect, is arranged at the side in addition that transparent base corresponds to diffusion layer.

2, the diffusion structure that adds lustre to according to claim 1, it is characterized in that the material of this transparent base is: PET (polyethylene terephthalate), PMMA (polymethylmethacrylate), MS (copolymer of methyl methacrylatestyrene), PS (polystyrene) or PC (polycarbonate).

3, the diffusion structure that adds lustre to according to claim 1 is characterized in that this diffusion layer is arranged at the incidence surface of transparent base, and lustre adding layer then is arranged at the exiting surface of transparent base.

4, the diffusion structure that adds lustre to according to claim 1 is characterized in that this diffusion layer is arranged at the exiting surface of transparent base, and lustre adding layer then is arranged at the incidence surface of transparent base.

5, the diffusion structure that adds lustre to according to claim 1 is characterized in that, this diffusion structure that adds lustre to is arranged at a reflection shield top with plural light source.

6, the diffusion structure that adds lustre to according to claim 1 is characterized in that this diffusion structure side that adds lustre to is provided with plural light source.

7, the diffusion structure that adds lustre to according to claim 1 is characterized in that this lustre adding layer is provided with bright enhancement film.

8, as the diffusion structure that adds lustre to as described in the claim 7, it is characterized in that this bright enhancement film has shape or the structure that plural prism or geometric scheme etc. have light enhancing effect.

9, the diffusion structure that adds lustre to according to claim 1 is characterized in that, this lustre adding layer is provided with shape or the structure that plural prism or geometric scheme have light enhancing effect in transparent base.

10, a kind of diffusion structure that adds lustre to, it includes at least:

One makes light produce the lustre adding layer of light enhancing effect, and the side in addition that corresponds to diffusion layer in transparent base is provided with the structure of tool light enhancing effect.

11, as the diffusion structure that adds lustre to as described in the claim 10, it is characterized in that this lustre adding layer is provided with bright enhancement film, the shape or the structure of tool light enhancing effect is set on bright enhancement film.