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 PDFInfo
- 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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- China
- Prior art keywords
- light
- secret note
- diffusion
- backlight
- adhesive tape
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- Expired - Fee Related
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- 238000009792 diffusion process Methods 0.000 title claims abstract description 37
- 239000002390 adhesive tape Substances 0.000 claims abstract description 18
- 239000003292 glue Substances 0.000 claims abstract description 16
- 230000004888 barrier function Effects 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000007937 lozenge Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
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.
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
ID=63949099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820396999.XU Expired - Fee Related 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) |
-
2018
- 2018-03-23 CN CN201820396999.XU patent/CN208041809U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181102 |
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| CF01 | Termination of patent right due to non-payment of annual fee |