CN203703815U

CN203703815U - Prismatic lens, backlight module and display device

Info

Publication number: CN203703815U
Application number: CN201420100359.1U
Authority: CN
Inventors: 王文德
Original assignee: BOE Technology Group Co Ltd; BOE Optical Science and Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; BOE Optical Science and Technology Co Ltd
Priority date: 2014-03-06
Filing date: 2014-03-06
Publication date: 2014-07-09
Anticipated expiration: 2024-03-06

Abstract

The utility model relates to the field of display technology, in particular to a prism sheet, a backlight module and a display device. The prism sheet includes a substrate, a microprism structure arranged on the upper surface of the substrate, and a corresponding As for the high molecular polymer layer on the lower surface, the upper surface of the substrate is respectively provided with light-shielding tape structures around the microprism structure and the lower surface of the substrate around the high molecular polymer layer. The prism sheet provided by the utility model is provided with a light-shielding tape structure on the periphery of the prism sheet, which replaces the existing backlight module structure in which the light-shielding tape and the prism structure are combined up and down, reduces the assembly steps of the backlight module, and reduces the production cost; Because the utility model cancels the light-shielding tape, the thickness of the backlight module is reduced, and the backlight module is thinner.

Description

A kind of prismatic lens, backlight module and display unit

Technical field

The utility model relates to Display Technique field, particularly a kind of prismatic lens, backlight module and display unit.

Background technology

In the structure of existing backlight module, assemble after the superiors' prismatic lens, also need additionally to assemble a slice shading rubber belt, as shown in Figure 1, in existing backlight module, the second prism 40 and shading rubber belt 50 combine up and down.When assembling backlight module, diffusion sheet 20, the first prism 30, the second prism 40 are put in assembling successively in the vertical direction, the upper shading rubber belt 50 of finally assembling.Shading rubber belt 50 parts stick on the second prism 40 of the superiors, and another part of this shading rubber belt 50 sticks on the barricade 11 of glue frame 10.As shown in Figure 2, the second prism 40 comprises base material 42, is located at the micro-prism structure 41 of base material 42 upper surfaces and is located at the high polymer layer 43 of base material 42 downsides.The thickness backlight of backlight module has comprised the second prism 40 thickness of the superiors and the thickness of shading rubber belt 50.In the process of above-mentioned assembling backlight module, number of assembling steps is comparatively loaded down with trivial details, and use shading rubber belt make backlight module comparatively thick and heavy, cannot meet the development trend of present backlight module slimming.

In order to overcome the above problems, the utility model has done useful improvement.

Utility model content

(1) technical problem that will solve

It is more frivolous that the purpose of this utility model is to provide one, and prismatic lens, backlight module and display unit that can simplified assembling process.

(2) technical scheme

The utility model is achieved through the following technical solutions:

A kind of prismatic lens, comprise base material, be arranged on micro-prism structure and the corresponding high polymer layer that is arranged on described base material lower surface of described base material upper surface, the upper surface of described base material is respectively arranged with shading tape structure at surrounding position and this base material lower surface of described micro-prism structure in the surrounding position of described high polymer layer.

Wherein, described shading tape structure comprises along the black dyes layer and the adhesive layer that set gradually away from described base material direction.

Preferably, the material of described base material is PETG.

Wherein, the material of described high polymer layer is resinous polymer.

The utility model also provides a kind of backlight module, comprises glue frame, LGP, is successively set on diffusion sheet and the first prism and the prismatic lens as above of described LGP upside; Described glue frame is provided with barricade; The shading tape structure of described prismatic lens bottom and the upper surface of described barricade are pasted.

Further, the shading tape structure on described prismatic lens top is for adhering liquid crystal panel

The utility model also provides a kind of display unit, comprises backlight module as above.

(3) beneficial effect

Compare with product with prior art, the utility model has the following advantages:

1, the prismatic lens that the utility model provides, arranges shading tape structure in prismatic lens edge, has replaced the back light module unit structure that existing shading rubber belt and prism structure combine up and down, has reduced the number of assembling steps of backlight module, has reduced production cost;

2, the utility model, owing to having cancelled shading rubber belt, has reduced backlight module finished product thickness, makes more slimming of backlight module.

Accompanying drawing explanation

Fig. 1 is the local structural graph of existing backlight module;

Fig. 2 is the structural representation of existing the second prism;

Fig. 3 is the top view of the prismatic lens that provides of the utility model;

Fig. 4 is the structural representation of the prismatic lens that provides of the utility model;

Fig. 5 is the local structural graph of the backlight module that provides of the utility model.

In accompanying drawing, the component list of each label representative is as follows:

10-glue frame; 11-barricade; 20-diffuser plate; 30-the first prism; 40-the second prism; 41-micro-prism structure; 42-base material; 43-high polymer layer; 50-shading tape structure; 60-LGP; 70-prismatic lens; 71-shading tape structure; 8-black fuel bed; 9-adhesive layer.

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is made a detailed explanation.

As shown in Fig. 3, Fig. 4 and Fig. 5, the present embodiment provides a kind of prismatic lens 70, this prismatic lens 70 comprises base material 42, is arranged on micro-prism structure 41 and the corresponding high polymer layer 43 that is arranged on described base material 42 lower surfaces of described base material 42 upper surfaces, and the upper surface of described base material 42 is respectively arranged with shading tape structure 71 at surrounding position and these base material 42 lower surfaces of described micro-prism structure 41 in the surrounding position of described high polymer layer 43.Described prismatic lens 70 is arranged in backlight module.Backlight module comprises glue frame 10, LGP 60, is successively set on diffusion sheet 20 and the first prism 30 and the described prismatic lens 10 of described LGP 60 upsides; Described glue frame 10 is provided with barricade 11; The shading rubber belt 71 of described prismatic lens 70 bottoms is pasted with the upper surface of described barricade 11.Visible, described prismatic lens 70 has prism function and shade function, has replaced the back light module unit structure that original shading rubber belt and prism structure combine up and down.This prismatic lens is directly installed when assembling, has been reduced the number of assembling steps of backlight module, reduced production cost.In addition, owing to having cancelled shading rubber belt, described prismatic lens only has the thickness of prismatic lens, uses this prismatic lens can reduce backlight module finished product thickness, makes more slimming of backlight module.

Wherein, described shading tape structure 71 comprises along the black dyes layer 8 and the adhesive layer 9 that set gradually away from described base material 42 directions.Described adhesive agent 9 can adopt the adhesive agent such as emulsion acrylate, solvent-borne type glue.

Further, the material of described base material 42 can preferably adopt PETG (Polythylene terephthalate is called for short PET) material.PET material fatigue resistance, there is in the good transparency and thermoplastic maximum toughness, guarantee the sound construction of prismatic lens; And PET material electrical insulation capability is good, temperature influence is little, guarantees the stability of prismatic lens optical property.

Preferably, the material of described high polymer layer 43 can adopt various resinae polymer, as the material such as polyethylene, polystyrene.Resinous polymer has the good transparency, has guaranteed the optical property of prismatic lens.

The present embodiment also provides a kind of backlight module, as shown in Figure 3, comprises glue frame 10, LGP 60, is successively set on diffusion sheet 20 and the first prism 30 and the prismatic lens as above 70 of described LGP 60 upsides; Described glue frame 10 is provided with barricade 11; The shading tape structure 71 of described prismatic lens 70 bottoms is pasted with the upper surface of described barricade 11.The shading tape structure 71 on described prismatic lens 70 tops can be connected with the substrate of liquid crystal panel, thus adhering liquid crystal panel.

The present embodiment also provides a kind of display unit, as Mobile phone screen, television set, liquid crystal display or panel computer etc., comprises backlight module as above.

The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. a prismatic lens, comprise base material, be arranged on micro-prism structure and the corresponding high polymer layer that is arranged on described base material lower surface of described base material upper surface, it is characterized in that, the upper surface of described base material is respectively arranged with shading tape structure at surrounding position and this base material lower surface of described micro-prism structure in the surrounding position of described high polymer layer.

2. prismatic lens according to claim 1, is characterized in that, described shading tape structure comprises along the black dyes layer and the adhesive layer that set gradually away from described base material direction.

3. prismatic lens according to claim 1, is characterized in that, the material of described base material is PETG.

4. prismatic lens according to claim 1, is characterized in that, the material of described high polymer layer is resinous polymer.

5. a backlight module, is characterized in that, comprises glue frame and the prismatic lens as described in claim 1～4 any one; Described glue frame is provided with barricade; The shading tape structure of described prismatic lens bottom and the upper surface of described barricade are pasted.

6. backlight module according to claim 5, is characterized in that, the shading tape structure on described prismatic lens top is for adhering liquid crystal panel.

7. a display unit, is characterized in that, comprises the backlight module as described in claim 5 or 6.