CN209055683U

CN209055683U - A kind of multi-functional clad plate for back light module unit structure

Info

Publication number: CN209055683U
Application number: CN201821891729.2U
Authority: CN
Inventors: 庄兴潮
Original assignee: Huizhou Kaidi Optoelectronic Technology Co Ltd
Current assignee: Huizhou Kaidi Optoelectronic Technology Co Ltd
Priority date: 2018-11-16
Filing date: 2018-11-16
Publication date: 2019-07-02
Anticipated expiration: 2028-11-16

Abstract

The utility model discloses a kind of multi-functional clad plate for back light module unit structure, comprising: diffusion substrate, optical film, the optical film are made of the compound top and bottom for sticking in the diffusion substrate of UV glue, the diffusion substrate the first thin layer and the second thin layer；The upper surface of first thin layer and the lower surface of the second thin layer form bulge-structure using mould heat pressure molding mode, by the bulge-structure enable the first thin layer upper surface and the second thin layer lower surface be rough surface, with enhance the first thin layer concealing and reduce the second thin bed reflection light caused by light loss.It is in the utility model that optical film and diffusion substrate is integrated bonded, do not need by former backlight module diffusion substrate and optical film clean assemble again respectively, improve packaging efficiency, can promote backlight module mechanization assembling, and certain cost can be reduced.

Description

A kind of multi-functional clad plate for back light module unit structure

Technical field

The utility model relates to back light module unit structure technical fields, refer in particular to a kind of for the multi-functional multiple of back light module unit structure Plywood.

Background technique

In existing direct-type backlight, the optical material on light source is usually diffuser plate, optical film (diffusion sheet, brightness enhancement film Deng), optical film be usually in PET base material coating or upper resin do micro-structure, pass through interface propagate light beam a kind of optical medium Material, optical film application start from the 1930s, modern, and optical function plate is widely used in optics and photoelectron technology neck Domain manufactures various optical instruments.Diffuser plate belongs to one of optical function plate, and the feature of diffuser plate maximum is caused very to light Big interference, regardless of the distribution curve flux of original design be how much spend, as long as light through diffuser plate it can make beam angle become 160~ 176 °, so from the side, the plate face of lamps and lanterns has the feeling of layer mist, it can prove that beam angle is greatly to 160~176 ° from this point Preferably proving, beam angle is bigger, and illumination is lower, some can also generate optical filtering, and it penetrate the wavelength for having part can not, cause colour cast, Such as surface carry out again the interference of light processing (such as: frosted, give as security line), light transmittance because the natural phenomena of geometric optics is even more low, So the substrate for being used to be made into diffuser plate should select refractive index more lower better, it will be lower to the interference of light.Conventional backlit mould Group structure be made up of diffuser plate and optical film, and the quantity of optical film is decided according to the actual requirements, and needs are to every when assembling A material carries out cleaning dedusting, then stacks, and the number of optical material quantity directly affects production efficiency, while optical material Operation defect ratio increased with quantity.

Utility model content

In order to solve the above-mentioned technical problem, the utility model uses following technical proposals: one kind being used for backlight module knot The multi-functional clad plate of structure, comprising: diffusion substrate, optical film, the optical film stick in the diffusion base by the way that UV glue is compound The top and bottom of plate, the diffusion substrate are made of the first thin layer and the second thin layer；The upper surface of first thin layer and second thin Layer lower surface using mould heat pressure molding mode formed bulge-structure, by the bulge-structure enable the upper surface of the first thin layer with And second thin layer lower surface be rough surface, with enhance the first thin layer concealing and reduce the second thin bed reflection light make At light loss.

Further, the optical film is a kind of, several or fitting product of diffusion barrier, brightness enhancement film, composite membrane.

Further, first thin layer, the second thin layer material are identical, wherein being filled with diffusant/particle, UV absorption The formulas such as agent/particle, brightening agent, anti-yellowing agent or the one or more of of functional additive combine.

Further, the bulge-structure is rule or irregular geometry, and the bulge-structure is on the first thin layer Surface and the second thin layer lower surface are uniformly distributed.

Further, second thickness of thin layer is greater than the first thickness of thin layer.

The utility model have the following advantages that compared with prior art and the utility model has the advantages that

1, in the utility model that optical film and diffusion substrate is integrated bonded, it does not need the diffusion base in former backlight module Plate and optical film clean respectively to be assembled again, improves packaging efficiency, can promote backlight module mechanization assembling；

2, diffusion substrate double-layer structure is constituted, using modified particle, by physics or chemical means be filled with diffusant/ The formulas such as particle, ultraviolet absorber/particle, brightening agent, anti-yellowing agent or the one or more of of functional additive combine, melting Straticulation is squeezed out in rear mold, promotes mist degree or concealing；

3, the first thin layer upper surface and the second thin layer lower surface can do surface micro-structure, such as V-type prism structure, frosted shape Shape does bulge-structure with the concealing of enhanced feature plate again, second layer lower surface, to reduce light caused by the reflected light of lower surface Loss；

4, the utility model can suitably promote light transmittance on the basis of reaching concealing effect, the light loss after lowering fitting Consumption makes close with traditional approach in optical property.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the multi-functional clad plate of the utility model.

Specific embodiment

The present invention will be further described in detail with reference to the embodiments and the accompanying drawings, but the implementation of the utility model Mode is without being limited thereto.

Embodiment:

As shown in Figure 1, a kind of multi-functional clad plate for back light module unit structure, comprising: diffusion substrate 1, optical film 2, The optical film 2 is by the compound top and bottom for sticking in the diffusion substrate 1 of UV glue 3, and the diffusion substrate 1 is by the first thin layer 11 It is constituted with the second thin layer 12；The upper surface of first thin layer 11 and the lower surface of the second thin layer 12 use mould heat pressure molding side Formula forms bulge-structure 13, enables the upper surface of the first thin layer 11 by the bulge-structure 13 and the lower surface of the second thin layer 12 is Rough surface, to enhance the concealing of the first thin layer 11 and reduce light loss caused by 12 reflected light of the second thin layer.

Specifically, the optical film 2 is a kind of, several or fitting product of diffusion barrier, brightness enhancement film, composite membrane.First is thin Layer 11 and the second thin layer 12 are to be co-extruded in mould, need 2 or more extruders to work at the same time, first thin layer 11, second 12 material of thin layer is identical, and material can be PMMA (polymethyl methacrylate), PS (polystyrene), PC (polycarbonate), PP The plastic pellet of the relatively low fusing point such as (polypropylene) or its corresponding copolymer generally uses modified particle, wherein passing through Physics or chemical means are filled with formulas or the functions such as diffusant/particle, ultraviolet absorber/particle, brightening agent, anti-yellowing agent Property the one or more of of additive combine.

Second thin layer, 12 thickness is greater than 11 thickness of the first thin layer, wherein the first thin layer 11 and the second thin layer 12 is specific Thickness can be adjusted flexibly as needed.

The bulge-structure is rule or irregular geometry, and the bulge-structure is in the first thin layer upper surface and second Thin layer lower surface is uniformly distributed, and the bulge-structure 13 can be serrated protrusion, cross section semicircle or arc-shaped for cross section The structures such as protrusion.

Light maximum scattering/index ellipsoid after diffuser plate concentrates in the first thin layer, the datapath section of light scattering Domain shortens, the effect of same diffusion particle, and the light mixing degree in short distance is higher, and concealing also just has opposite promotion；And it adopts It is able to ascend backlight packaging efficiency with above structure, transmitance can be suitably promoted on the basis of reaching concealing effect, reduces patch Light loss after conjunction makes to approach in optical property with traditional approach, can promote backlight mechanization assembling, and only once operation is completed, It is widely applied in backlight and illuminating product.

Above-described embodiment is the preferable embodiment of the utility model, but the embodiments of the present invention is not by above-mentioned The limitation of embodiment, it is made under other any spiritual essence and principles without departing from the utility model to change, modify, replacing In generation, simplifies combination, should be equivalent substitute mode, is included within the protection scope of the utility model.

Claims

1. a kind of multi-functional clad plate for back light module unit structure, it is characterised in that: it include: diffusion substrate, optical film, it is described Optical film is by the compound top and bottom for sticking in the diffusion substrate of UV glue, and the diffusion substrate is by the first thin layer and the second thin layer It constitutes；The upper surface of first thin layer and the lower surface of the second thin layer form bulge-structure using mould heat pressure molding mode, The upper surface of the first thin layer is enabled by the bulge-structure and the lower surface of the second thin layer is rough surface, it is first thin with enhancing Light loss caused by the second thin bed reflection light of concealing and reduction of layer.

2. a kind of multi-functional clad plate for back light module unit structure according to claim 1, it is characterised in that: the light Film is a kind of, several or fitting product of diffusion barrier, brightness enhancement film, composite membrane.

3. a kind of multi-functional clad plate for back light module unit structure according to claim 1, it is characterised in that: described A thin layer, the second thin layer material are identical, wherein being filled with diffusant/particle, ultraviolet absorber/particle, brightening agent, anti-yellowing agent It is combined Deng formula or the one or more of of functional additive.

4. a kind of multi-functional clad plate for back light module unit structure according to claim 1, it is characterised in that: described convex Playing structure is that rule or irregular geometry, the bulge-structure are uniform in the first thin layer upper surface and the second thin layer lower surface Distribution.

5. a kind of multi-functional clad plate for back light module unit structure according to claim 1 to 4, it is characterised in that: Second thickness of thin layer is greater than the first thickness of thin layer.