CN208041809U - One kind being effectively improved the undesirable diffusion secret note structures of backlight HOTSPOT - Google Patents

One kind being effectively improved the undesirable diffusion secret note structures of backlight HOTSPOT Download PDF

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Publication number
CN208041809U
CN208041809U CN201820396999.XU CN201820396999U CN208041809U CN 208041809 U CN208041809 U CN 208041809U CN 201820396999 U CN201820396999 U CN 201820396999U CN 208041809 U CN208041809 U CN 208041809U
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Prior art keywords
light
secret note
diffusion
backlight
hotspot
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CN201820396999.XU
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温炳燊
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JIANGXI LIANCHUANG ZHIGUANG TECHNOLOGY Co Ltd
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JIANGXI LIANCHUANG ZHIGUANG TECHNOLOGY Co Ltd
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Abstract

One kind being effectively improved the undesirable diffusion secret note structures of backlight HOTSPOT, it is related to back light source technique field, it includes several LED light sources, light guide plate and diffusion barrier, the light inlet of the light guide plate is wedge structure, and diffusion secret note is posted on the light-emitting surface of the light inlet of the diffusion barrier.The diffusion secret note is composed of glue layer and adhesive tape layer.The glue layer is between adhesive tape layer and diffusion barrier.The utility model has the beneficial effects that:The structure can reduce debugging cycle and die cost of the optical engineer to light guide plate;LED light-emitting surfaces can be shortened to the distance in the areas V.A without generating hot spot and light leakage phenomena, to play narrow frame effect;The removal techniques such as hot spot and light leakage can be simplified.

Description

One kind being effectively improved the undesirable diffusion secret note structures of backlight HOTSPOT
Technical field
The utility model is related to back light source technique fields, and it is undesirable to be effectively improved backlight HOTSPOT more particularly, to one kind Spread secret note structure.
Background technology
With the rapid development of smart mobile phone and universal, consumer increasingly favors the good appearances such as narrow frame, ultra-thin Product.Higher requirements are also raised for optical effect processing of ultra-thin, ultra-narrow frame the design to backlight guide plate.Ultra-narrow frame Mean LED light-emitting surfaces to V.A(Backlight visible area)The distance in area shortens and V.A offsets become smaller with a distance from backlight edge. This will cause visual area edge bright line more apparent, occur the bad phenomenon such as hot spot, light leakage before lamp.This is always to perplex backlight row Technical barrier in industry.Other than being improved in the arrangement of the site of light guide plate, the more common way in industry is at present Increase the black PET of one fixed width in the light-emitting surface of diffusion barrier light inputting end, the HOTSPOT of source ends is reduced not by the method It is good.This method can mitigate HOSPOT bad phenomenons to a certain extent, but also cannot be satisfied client in some high-end cases Rigors.
In ultrathin products(Relative to 5.0~5.5 cun of products, light guide plate is in 0.42mm or less), to meet brightness Requirement, the LED of usual ultra-thin light guide board collocation 0.6T.It is suitable with LED holdings in light inlet thickness that this requires light guide plates, Light extraction face thickness, which can be done, small meets ultra-thin requirement.I.e. light guide plate makes wedge structure in light inlet.
But the problem of bringing therewith is, the light that LED is sent out cannot can pass through leaded light completely into light guide plate, part LED Plate lozenges projects, and the light that this part leaks out cannot pass fully through the aggtegation of bright enhancement film so that light-ray condensing is in backlight Within the scope of 20 ° of light-emitting surface normal.To cause back light end hot spot, light leakage phenomena.
Utility model content
In order to solve the above technical problems, technical solution used by the utility model is:
One kind being effectively improved the undesirable diffusion secret note structures of backlight HOTSPOT, including LED light source, light guide plate and diffusion Film, wherein:The light inlet of the light guide plate is wedge structure, and it is black that diffusion is posted on the light-emitting surface of the light inlet of the diffusion barrier Item.
Preferably, the diffusion secret note is composed of glue layer and adhesive tape layer, and the glue layer lower surface is affixed on diffusion Film upper surface, upper surface are bonded with adhesive tape layer.
Preferably, the glue layer is black PSA glue.
Preferably, the adhesive tape layer is ater PET, and through-hole and blind hole, the blind hole are evenly distributed on adhesive tape layer Depth be adhesive tape layer thickness half, the through-hole and blind hole are alternately arranged.
The utility model has the beneficial effects that:Debugging cycle and die cost of the optical engineer to light guide plate can be reduced; LED light-emitting surfaces can be shortened to the distance in the areas V.A without generating hot spot and light leakage phenomena, to play narrow frame effect;It can simplify Remove the techniques such as hot spot and light leakage;
Attaching operation is carried out in addition, can be inserted into blind hole by tools such as thin sticks, has made expansion when keeping away hands-free dirty Film surface is dissipated, while also improving the accuracy of attaching, through-hole structure can play good permeation functions when attaching, and prevent from expanding Bad phenomenon caused by generating minute bubbles after secret note is attached with diffusion barrier is dissipated to occur.
Description of the drawings
Fig. 1 is a kind of side view being effectively improved the undesirable diffusion secret note structures of backlight HOTSPOT;
Fig. 2 is a kind of vertical view being effectively improved the undesirable diffusion secret note structures of backlight HOTSPOT;
In figure:LED light source 1, light guide plate 2, diffusion barrier 3, diffusion secret note 4, glue layer 5, adhesive tape layer 6, through-hole 7, blind hole 8.
Specific implementation mode
Below with reference to the embodiments and with reference to the accompanying drawing the technical solution of the utility model is further described in detail, it should Understand, preferred implementation case described herein is only used for describing and explaining the present invention, and new without this practicality with restriction Type.
As shown in Figure 1, 2, one kind is effectively improved the undesirable diffusion secret note structures of backlight HOTSPOT, including LED light source 1, leads Tabula rasa 2 and diffusion barrier 3, wherein:The light inlet of the light guide plate 2 is wedge structure, the light extraction of the light inlet of the diffusion barrier 3 Diffusion secret note 4 is posted on face.
Further, the diffusion secret note 4 is composed of glue layer 5 and adhesive tape layer 6,5 following table face paste of the glue layer In 3 upper surface of diffusion barrier, upper surface is bonded with adhesive tape layer 6.
Further, the glue layer 5 is black PSA glue.
Further, the adhesive tape layer 6 is ater PET, and through-hole 7 and blind hole 8 are evenly distributed on adhesive tape layer, described The depth of blind hole 8 is the half of 6 thickness of adhesive tape layer, and the through-hole 7 and blind hole 8 are alternately arranged.
The utility model in the light-emitting surface of diffusion light inlet by pasting a diffusion secret note 4, ater PET and black PSA glue can play the role of light effectively to absorb and block, and be leaked out from light guide plate tapered end to prevent light;Blind hole 8 and through-hole 7 can effectively promote attaching effect.This scheme can simplify the removal techniques such as hot spot and light leakage, while can reduce optics work Cheng Shi also helps the distance for shortening LED light-emitting surfaces to the areas V.A without generating light to the debugging cycle and die cost of light guide plate Spot and light leakage phenomena, to play narrow frame effect.
The utility model the utility model is adopt the above embodiments to illustrate the embodiment and the structure of the utility model, but This patent is not limited to the above embodiment, all to realize the utility model aim using structure similar with the utility model All modes, both are within the protection scope of the present invention.

Claims (4)

1. one kind being effectively improved the undesirable diffusion secret note structures of backlight HOTSPOT, including LED light source(1), light guide plate(2)And Diffusion barrier(3), it is characterised in that:The light guide plate(2)Light inlet be wedge structure, the diffusion barrier(3)Light inlet Diffusion secret note is posted on light-emitting surface(4).
2. one kind as described in claim 1 is effectively improved the undesirable diffusion secret note structures of backlight HOTSPOT, it is characterised in that:Institute State diffusion secret note(4)By glue layer(5)And adhesive tape layer(6)It is composed, the glue layer(5)Lower surface is affixed on diffusion barrier(3) Upper surface, upper surface and adhesive tape layer(6)Fitting.
3. one kind as claimed in claim 2 is effectively improved the undesirable diffusion secret note structures of backlight HOTSPOT, it is characterised in that:Institute State glue layer(5)For black PSA glue.
4. one kind as claimed in claim 2 is effectively improved the undesirable diffusion secret note structures of backlight HOTSPOT, it is characterised in that:Institute State adhesive tape layer(6)For ater PET, through-hole is evenly distributed on adhesive tape layer(7)And blind hole(8), the blind hole(8)Depth For adhesive tape layer(6)The half of thickness, the through-hole(7)And blind hole(8)It is alternately arranged.
CN201820396999.XU 2018-03-23 2018-03-23 One kind being effectively improved the undesirable diffusion secret note structures of backlight HOTSPOT Active CN208041809U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820396999.XU CN208041809U (en) 2018-03-23 2018-03-23 One kind being effectively improved the undesirable diffusion secret note structures of backlight HOTSPOT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820396999.XU CN208041809U (en) 2018-03-23 2018-03-23 One kind being effectively improved the undesirable diffusion secret note structures of backlight HOTSPOT

Publications (1)

Publication Number Publication Date
CN208041809U true CN208041809U (en) 2018-11-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820396999.XU Active CN208041809U (en) 2018-03-23 2018-03-23 One kind being effectively improved the undesirable diffusion secret note structures of backlight HOTSPOT

Country Status (1)

Country Link
CN (1) CN208041809U (en)

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