CN203561760U - Netted dot scattering film, backlight module, and display device - Google Patents
Netted dot scattering film, backlight module, and display device Download PDFInfo
- Publication number
- CN203561760U CN203561760U CN201320503863.1U CN201320503863U CN203561760U CN 203561760 U CN203561760 U CN 203561760U CN 201320503863 U CN201320503863 U CN 201320503863U CN 203561760 U CN203561760 U CN 203561760U
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- scattering film
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- 239000010408 film Substances 0.000 claims description 89
- 239000000463 material Substances 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 9
- 239000012788 optical film Substances 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 5
- 239000002390 adhesive tape Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 229920002799 BoPET Polymers 0.000 claims description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 abstract 3
- 239000011241 protective layer Substances 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Optical Elements Other Than Lenses (AREA)
- Planar Illumination Modules (AREA)
Abstract
The utility model discloses a netted dot scattering film, and a backlight module and a display device comprising the netted dot scattering film. The netted dot scattering film comprises a protective layer, a reflective layer, and a scattering layer. The scattering layer is provided with netted dots for scattering rays. Since the netted dot scattering film is used to replace a light guide plate, the backlight module and the display device save related cost of the light guide plate, reducing development cost. A forming process of the netted dot scattering film is simple, thickness can be very thin, limitation that the light guide plate cannot be made thin caused by process reasons is removed. Therefore, the netted dot scattering film can realize ultrathin design of the backlight module and the display device comprising the netted dot scattering film to the greatest extent.
Description
Technical field
The utility model relates to display technique field, is specifically related to a kind of site scattering film, backlight module and display device.
Background technology
The design main points of traditional ultrathin backlight module are mainly reduce the thickness of film material, light guide plate and adopt compound film material, but which kind of design does not all change the traditional structure of backlight module, all adopts light guide plate that side incident light is converted to front emergent light.But because light guide plate is to adopt mould to carry out injection mo(u)lding, be limited to mobility and the molding technological condition of material, for 5 cun of above products, the thickness of at present the thinnest light guide plate is also more than 0.35mm, cause backlight module thickness to be difficult to effectively reduce, be therefore difficult to really realize ultrathin backlight module.
Utility model content
In view of this, fundamental purpose of the present utility model is to provide a kind of site scattering film, backlight module and display device, to realize ultrathin design.
For achieving the above object, the technical solution of the utility model is achieved in that
A kind of site scattering film, this site scattering film comprises protective seam, reflection horizon and scattering layer; On described scattering layer, be provided with the site of scattered beam.
Described protective seam, reflection horizon and scattering layer are superimposed successively.
Site on the scattering film of described site is evenly distributed.
Site on the scattering film of described site has different densities at diverse location.
The refractive index of the scattering layer of described site scattering film is 1.4 to 1.6.
The material of described protective seam and/or scattering layer is polyester PET.
A kind of backlight module, this backlight module comprises light guiding film and above-mentioned site scattering film, also comprises the lamp being arranged between described light guiding film, site scattering film.
The nearer position of lamp described in distance on the scattering film of described site, the density of described site is less; Lamp position far away described in distance on the scattering film of described site, the density of described site is larger.
The refractive index of the scattering layer that described site scattering film comprises is more than or equal to the refractive index of described light guiding film, and the refractive index of described light guiding film is 1.4 to 1.6.
Described light guiding film is PET film.
Described lamp is fixed between described site scattering film and described light guiding film by adhesive tape by glue frame.
In described light guiding film, be also provided with the reflectance coating of avoiding light leak, and optical film material.
A kind of display device, this display device comprises above-mentioned backlight module.
Owing to replacing light guide plate with site scattering film, therefore the utility model has saved the correlative charges of light guide plate, has reduced cost of development; And, the moulding process of site scattering film is simple, thickness can be accomplished very thin, has broken away from light guide plate and cannot do thin restriction because of technological reason, and therefore above-mentioned site scattering film can be realized the backlight module that comprises this site scattering film and the ultrathin design of display device to greatest extent.
Accompanying drawing explanation
Fig. 1 is the site scattering film structural drawing of the utility model embodiment;
Fig. 2 is the vertical view of the site scattering film of the utility model embodiment;
Fig. 3 is the back light module unit structure figure of the utility model embodiment;
Fig. 4 is the principle of work schematic diagram of the backlight module of the utility model embodiment;
Description of reference numerals:
1, site scattering film; 2, scattering layer; 3, reflection horizon; 4, protective seam; 5, site; 6, lamp; 7, glue frame; 8, adhesive tape; 9, light guiding film; 10, reflectance coating; 11, optical film material.
Embodiment
In actual applications, can use site scattering film as shown in Figure 1 to replace conventional light guide plate at present.In Fig. 1, site scattering film comprises the protective seam 4, reflection horizon 3, the scattering layer 2 that are superimposed successively, is provided with site 5, as shown in Figure 2 on scattering layer 2.Site 5 can be circle, rectangle, triangular pyramid etc.
Wherein, the material of protective seam 4 and/or scattering layer 2 can have for polyester (PET) or other material of identical function.
When the site scattering film shown in Fig. 1 is applied in backlight module, can form structure as shown in Figure 3.In Fig. 3, glue frame 7 is fixed on lamp 6 between site scattering film 1 and light guiding film 9 by adhesive tape 8; In light guiding film 9, be provided with reflectance coating 10 to avoid light leak, in light guiding film 9, be also provided with the optical film materials 11 such as diffusion barrier, prism film.
Light guiding film 9 can be for having the PET film of high index of refraction, and lamp 6 can be LED lamp bar.
When lamp 6 emits beam, the site 5 on site scattering film 1 can be broken up side incident light; And light guiding film 9 can make side as much as possible incident light generation total reflection, then under the site 5 of site scattering film 1 and the acting in conjunction in reflection horizon 3, form uniform front emergent light.The refractive index of light guiding film 9 is higher, thereby more easily makes side incident light generation total reflection, on the site 5 of site scattering film 1, scattering occur, and by site scattering film 1, is reflected to form the emergent light of vertical exiting surface.
The size of the site 5 on site scattering film 1, density etc. can according to picture all requirement and optical principle once design.Conventionally, the site 5 on site scattering film 1 can be evenly distributed, also can have different densities at diverse location, as: the nearer position of distance lamp 6 on site scattering film 1, the density of site 5 is less; And distance lamp 6 position far away on site scattering film 1, the density of site 5 is larger.
Have, scattering layer 2 can be identical material with light guiding film 9 again.The refractive index of the scattering layer 2 of site scattering film 1, and the refractive index of light guiding film 9 can be 1.4 to 1.6, preferably 1.5.
In addition, the refractive index of the scattering layer 2 of site scattering film 1 can be more than or equal to the refractive index of light guiding film 9.
Based on the setting shown in Fig. 1 to Fig. 3, in the backlight module that comprises site scattering film 1, can form light path as shown in Figure 4.In Fig. 4, for the light in different paths, may there is following light path:
1, light 1 is side incident light, is reflexed on the site 5 of site scattering film 1 and scattering occurs by the upper surface of light guiding film 9;
2, light 2 is side incident light, on the site 5 at site scattering film 1 after the interior generation total reflection of light guiding film 9, scattering occurs;
3, light 3,4 is side incident light, directly on the site 5 of site scattering film 1, scattering occurs;
The light of above-mentioned all generation scatterings, most of because changing direction in the reflection horizon 3 of site scattering film 1, thereby see through optical film material 11 by the scattering layer 2 of site scattering film 1, penetrate.
Visible in sum, owing to replacing light guide plate with site scattering film, therefore the utility model has saved the correlative charges of light guide plate, has reduced cost of development; And, the moulding process of site scattering film is simple, thickness can be accomplished very thin, has broken away from light guide plate and cannot do thin restriction because of technological reason, and therefore above-mentioned site scattering film can be realized the backlight module that comprises this site scattering film and the ultrathin design of display device to greatest extent.
The above, be only preferred embodiment of the present utility model, is not intended to limit protection domain of the present utility model.
Claims (12)
1. a site scattering film, is characterized in that, this site scattering film comprises protective seam, reflection horizon and scattering layer, and described protective seam, reflection horizon and scattering layer are superimposed successively; On described scattering layer, be provided with the site of scattered beam.
2. site according to claim 1 scattering film, is characterized in that, the site on the scattering film of described site is evenly distributed.
3. site according to claim 1 scattering film, is characterized in that, the site on the scattering film of described site has different densities at diverse location.
4. according to the site scattering film described in claims 1 to 3 any one, it is characterized in that, the refractive index of the scattering layer of described site scattering film is 1.4 to 1.6.
5. site according to claim 1 scattering film, is characterized in that, the material of described protective seam and/or scattering layer is polyester PET.
6. a backlight module, is characterized in that, this backlight module comprises light guiding film and the site scattering film as described in claim 1 to 5 any one, also comprises the lamp being arranged between described light guiding film, site scattering film.
7. backlight module according to claim 6, is characterized in that, the nearer position of lamp described in distance on the scattering film of described site, and the density of described site is less; Lamp position far away described in distance on the scattering film of described site, the density of described site is larger.
8. according to the backlight module described in claim 6 or 7, it is characterized in that, the refractive index of the scattering layer that described site scattering film comprises is more than or equal to the refractive index of described light guiding film, and the refractive index of described light guiding film is 1.4 to 1.6.
9. backlight module according to claim 6, is characterized in that, described light guiding film is PET film.
10. backlight module according to claim 6, is characterized in that, described lamp is fixed between described site scattering film and described light guiding film by adhesive tape by glue frame.
11. backlight modules according to claim 6, is characterized in that, are also provided with the reflectance coating of avoiding light leak and optical film material in described light guiding film.
12. 1 kinds of display device, is characterized in that, this display device comprises the backlight module as described in claim 6 to 11 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320503863.1U CN203561760U (en) | 2013-08-16 | 2013-08-16 | Netted dot scattering film, backlight module, and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320503863.1U CN203561760U (en) | 2013-08-16 | 2013-08-16 | Netted dot scattering film, backlight module, and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203561760U true CN203561760U (en) | 2014-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320503863.1U Expired - Fee Related CN203561760U (en) | 2013-08-16 | 2013-08-16 | Netted dot scattering film, backlight module, and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203561760U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133793A (en) * | 2019-05-30 | 2019-08-16 | 深圳创维－Rgb电子有限公司 | A kind of light guiding film and display device |
| CN110308511A (en) * | 2019-06-29 | 2019-10-08 | 深圳创维－Rgb电子有限公司 | A kind of light guide structure, side entrance back module and display equipment |
-
2013
- 2013-08-16 CN CN201320503863.1U patent/CN203561760U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133793A (en) * | 2019-05-30 | 2019-08-16 | 深圳创维－Rgb电子有限公司 | A kind of light guiding film and display device |
| CN110133793B (en) * | 2019-05-30 | 2021-06-01 | 深圳创维－Rgb电子有限公司 | Light guide film and display device |
| CN110308511A (en) * | 2019-06-29 | 2019-10-08 | 深圳创维－Rgb电子有限公司 | A kind of light guide structure, side entrance back module and display equipment |
| CN110308511B (en) * | 2019-06-29 | 2021-09-28 | 深圳创维－Rgb电子有限公司 | Light guide structure, side-in backlight module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 |