CN113189687A - Diffusion film, backlight module and display device - Google Patents
Diffusion film, backlight module and display device Download PDFInfo
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- CN113189687A CN113189687A CN202110542202.9A CN202110542202A CN113189687A CN 113189687 A CN113189687 A CN 113189687A CN 202110542202 A CN202110542202 A CN 202110542202A CN 113189687 A CN113189687 A CN 113189687A
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- diffusion
- light
- layer
- protective layer
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
- G02B5/0242—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element by means of dispersed particles
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/16—Optical coatings produced by application to, or surface treatment of, optical elements having an anti-static effect, e.g. electrically conducting coatings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
- G02B5/045—Prism arrays
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Nonlinear Science (AREA)
- Dispersion Chemistry (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention relates to the technical field of display and lighting parts, in particular to a diffusion film which comprises a base material, wherein at least one surface of the base material is provided with a diffusion layer, a plurality of diffusion particles are arranged in the diffusion layer, and the outer side of the diffusion layer is provided with a protective layer; a light-adding layer is arranged on one side, close to the light-emitting side, of the base material and connected to the surface of the protective layer, a plurality of light-adding prisms are arranged on the surface of the light-adding layer, light-adding films are arranged on the surfaces of the light-adding prisms, and a first protective layer is arranged on the outer side of the light-adding layer; and an anti-static layer is arranged on one side of the base material, which deviates from the light-emitting direction, and a second protective layer is arranged on the outer side of the anti-static layer. The diffusion film improves the intensifying and displaying effects, and enlarges the application range of the diffusion film to a certain extent; the filter is beneficial to filtering out vertigo light and ultraviolet light, is eye-friendly and has strong practicability; the multiple protection improves the protection effect of the diffusion film and prolongs the service life of the diffusion film.
Description
Technical Field
The invention relates to the technical field of display and illumination components, in particular to a diffusion film, a backlight module and a display device.
Background
When light passes through the diffusion layer using PET as a base material, the light passes through media with different refractive indexes, so that a plurality of refraction, reflection and scattering phenomena occur. The diffusion film is mainly used for a backlight light source part of an LCD module, can correct light rays into a uniform surface light source to achieve the effect of optical diffusion, and mainly plays a role in correcting a diffusion angle in a backlight source structure, so that the light radiation area is increased, but the light intensity of a unit area is reduced, namely the luminance is reduced.
Therefore, the diffusion film is almost one of indispensable materials in the material composition of the LCD backlight. At present, along with the popularization of intelligent equipment, the requirements of outdoor mobile display and lighting equipment are rapidly increased, and the LED is rapidly popularized. However, the conventional diffuser film has poor brightness enhancement effect, and some complicated diffuser films have complicated preparation methods, high cost, and are more easily damaged, which affects the service life.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a diffusion film with good brightening effect, strong protection and good diffusion effect. In order to realize the purpose of the invention, the following technical scheme is adopted:
a diffusion film comprises a base material, wherein at least one surface of the base material is provided with a diffusion layer, a plurality of diffusion particles are arranged in the diffusion layer, and the outer side of the diffusion layer is provided with a protective layer; a light-adding layer is arranged on one side, close to the light-emitting side, of the base material and connected to the surface of the protective layer, a plurality of light-adding prisms are arranged on the surface of the light-adding layer, light-adding films are arranged on the surfaces of the light-adding prisms, and a first protective layer is arranged on the outer side of the light-adding layer; and an anti-static layer is arranged on one side of the base material, which deviates from the light-emitting direction, and a second protective layer is arranged on the outer side of the anti-static layer.
Preferably, the number of the diffusion layers is two, and the two diffusion layers are respectively arranged on the upper surface and the lower surface of the base material.
Preferably, the diffusion particles are one or more of uniformly distributed.
Preferably, the diffusion particles are provided in two types, and the two types of diffusion particles are respectively a first diffusion particle and a second diffusion particle.
Preferably, any two first diffusion particles are separated by one second diffusion particle.
Preferably, the diameter of the first diffusion particle is larger than the diameter of the second diffusion particle.
Preferably, the brightness enhancement prism is one of an inverted truncated cone shape and an inverted cone shape, and the brightness enhancement prisms are continuously arranged or uniformly arranged at intervals.
Preferably, the protective layer is an anti-glare coating and/or an ultraviolet-proof coating.
In order to achieve the above object, the present invention further provides a backlight module including the diffusion film.
In order to achieve the above object, the present invention further provides a display device including the backlight module.
Compared with the prior art, the invention has the beneficial effects that: the diffusion film is provided with the light-adding layer with the light-adding prism and the light-adding film, so that the light-adding and display effects are improved, and the application range of the diffusion film is expanded to a certain extent; the protective layer with the anti-dazzle coating and/or the anti-ultraviolet coating is arranged, so that the dizzy light and the ultraviolet light can be filtered, the eye-friendly effect is realized, and the practicability is high; the light source is provided with a plurality of uniformly distributed diffusion particles, so that uniform dispersion of light is facilitated, the utilization rate of the light is improved, the light is uniform in light emission, and the light emitting effect is good; still set up first protective layer, antistatic backing and second protective layer, multiple protection has improved the guard effect of diffusion barrier, has prolonged the life of diffusion barrier.
Drawings
FIG. 1 is a schematic view of the overall structure of a diffusion membrane according to the present invention;
FIG. 2 is a schematic view of the overall structure of embodiment 2 of the present invention;
in the figure, 1-substrate, 2-diffusion layer, 21-first diffusion particle, 22-second diffusion particle, 3-protective layer, 4-light-adding layer, 41-light-adding prism, 42-light-adding film, 5-first protective layer, 6-antistatic layer, and 7-second protective layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Detailed description of the preferred embodiment 1
Fig. 1 is a schematic view of an overall structure of a diffusion film of the present invention, from which it can be seen that the diffusion film of the present invention includes a substrate 1, diffusion layers 2 are respectively disposed on an upper surface and a lower surface of the substrate 1, and diffusion particles are disposed in the diffusion layers 2, in this embodiment, the diffusion particles are two kinds of uniformly distributed first diffusion particles 21 and second diffusion particles 22, respectively, which can make light rays uniformly disperse and promote full utilization of the light rays, a second diffusion particle 22 is uniformly distributed between any two first diffusion particles 21, the diameter of the first diffusion particle 21 is larger than that of the second diffusion particle 22, a protective layer 3 is disposed on an outer side of the diffusion layer 2, and the protective layer 3 is an anti-glare coating layer and an anti-ultraviolet coating layer; a light-adding layer 4 is arranged on one side, close to the light-emitting side, of the substrate 1 and connected to the surface of the protective layer 3, a plurality of light-adding prisms 41 with an inverted circular truncated cone-shaped structure are continuously and uniformly arranged on the surface of the light-adding layer 4, a light-adding film 42 is arranged on the surface of each light-adding prism 41, the display effect is improved, a first protective layer 5 is arranged on the outer side of each light-adding layer 4, a certain protective effect is achieved, and the service life of the diffusion film is prolonged; one side that deviates from the light-emitting at substrate 1 is equipped with antistatic backing 6, and antistatic backing 6 connects on the inoxidizing coating 3 in the 2 outsides of diffusion barrier below substrate 1, plays certain antistatic action, prevents that the static accumulation from causing the damage to the part, is equipped with second protective layer 7 in antistatic backing 6's the outside, further improves the guard action.
Specific example 2
Fig. 2 is a schematic overall structure diagram of an embodiment 2 of the present invention, from which it can be seen that a diffusion film according to the present invention includes a substrate 1, a diffusion layer 2 is disposed on an upper surface of the substrate 1, and diffusion particles are disposed in the diffusion layer 2, in this embodiment, the diffusion particles are two kinds of uniformly distributed, that is, first diffusion particles 21 and second diffusion particles 22, respectively, so as to enable light to be uniformly dispersed and promote full utilization of light, a second diffusion particle 22 is uniformly distributed between any two first diffusion particles 21, a diameter of each first diffusion particle 21 is larger than a diameter of each second diffusion particle 22, a protective layer 3 is disposed on an outer side of the diffusion layer 2, and the protective layer 3 is an anti-glare coating; a light-adding layer 4 is arranged on one side, close to the light-emitting side, of the substrate 1 and connected to the surface of the protective layer 3, a plurality of light-adding prisms 41 with inverted conical structures are continuously and uniformly arranged on the surface of the light-adding layer 4, a light-adding film 42 is arranged on the surface of each light-adding prism 41, the display effect is improved beneficially, a first protective layer 5 is arranged on the outer side of the light-adding layer 4, a certain protective effect is achieved, and the service life of the diffusion film is prolonged; one side that deviates from the light-emitting at substrate 1 is equipped with antistatic backing 6, and antistatic backing 6 connects on the inoxidizing coating 3 in the 2 outsides of diffusion barrier below substrate 1, plays certain antistatic action, prevents that the static accumulation from causing the damage to the part, is equipped with second protective layer 7 in antistatic backing 6's the outside, further improves the guard action.
Specific example 3
The invention relates to a diffusion film (not shown in the figure), which comprises a base material 1, wherein diffusion layers 2 are respectively arranged on the upper surface and the lower surface of the base material 1, and diffusion particles are arranged in the diffusion layers 2, in the embodiment, the diffusion particles are uniformly distributed substances, so that light can be uniformly diffused, the full utilization of the light is promoted, a protective layer 3 is arranged on the outer side of the diffusion layers 2, and the protective layer 3 is an ultraviolet-proof coating; a light-adding layer 4 is arranged on one side, close to the light-emitting side, of the substrate 1 and connected to the surface of the protective layer 3, a plurality of light-adding prisms 41 with inverted circular truncated cone structures are uniformly arranged on the surface of the light-adding layer 4 at intervals, a light-adding film 42 is arranged on the surface of each light-adding prism 41, the display effect is improved, a first protective layer 5 is arranged on the outer side of the light-adding layer 4, a certain protective effect is achieved, and the service life of the diffusion film is prolonged; one side that deviates from the light-emitting at substrate 1 is equipped with antistatic backing 6, and antistatic backing 6 connects on the inoxidizing coating 3 in the 2 outsides of diffusion barrier below substrate 1, plays certain antistatic action, prevents that the static accumulation from causing the damage to the part, is equipped with second protective layer 7 in antistatic backing 6's the outside, further improves the guard action.
Specific example 4
A backlight module comprises the diffusion film.
Specific example 5
A display device comprises the backlight module.
As can be seen from the above embodiments of the present invention, the diffusion film of the present invention is provided with the light-adding layer with the light-adding prism and the light-adding film, so that the light-adding and display effects are improved, and the application range of the diffusion film is expanded to a certain extent; the protective layer with the anti-dazzle coating and/or the anti-ultraviolet coating is arranged, so that the dizzy light and the ultraviolet light can be filtered, the eye-friendly effect is realized, and the practicability is high; the light source is provided with a plurality of uniformly distributed diffusion particles, so that uniform dispersion of light is facilitated, the utilization rate of the light is improved, the light is uniform in light emission, and the light emitting effect is good; still set up first protective layer, antistatic backing and second protective layer, multiple protection has improved the guard effect of diffusion barrier, has prolonged the life of diffusion barrier.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can understand that the changes or modifications within the technical scope of the present invention are included in the scope of the present invention, and therefore, the scope of the present invention should be subject to the protection scope of the claims.
Claims (10)
1. A diffusion membrane, characterized by: the material comprises a base material (1), wherein at least one surface of the base material (1) is provided with a diffusion layer (2), a plurality of diffusion particles are arranged in the diffusion layer (2), and the outer side of the diffusion layer (2) is provided with a protective layer (3); a light-adding layer (4) is arranged on one side, close to the light-emitting side, of the base material (1), the light-adding layer (4) is connected to the surface of the protective layer (3), a plurality of light-adding prisms (41) are arranged on the surface of the light-adding layer (4), a light-adding film (42) is arranged on the surface of each light-adding prism (41), and a first protective layer (5) is arranged on the outer side of each light-adding layer (4); and an anti-static layer (6) is arranged on one side of the base material (1) deviating from the emergent light, and a second protective layer (7) is arranged on the outer side of the anti-static layer (6).
2. The diffusion membrane of claim 1, wherein: the number of the diffusion layers (2) is two, and the two diffusion layers (2) are respectively arranged on the upper surface and the lower surface of the base material (1).
3. The diffusion membrane of claim 1, wherein: the diffusion particles are one or more uniformly distributed.
4. The diffusion membrane of claim 3, wherein: the diffusion particles are provided with two kinds, namely first diffusion particles (21) and second diffusion particles (22).
5. The diffusion membrane of claim 4, wherein: any two first diffusion particles (21) are separated by one second diffusion particle (22).
6. The diffusion membrane of claim 5, wherein: the diameter of the first diffusion particle (21) is larger than that of the second diffusion particle (22).
7. The diffusion membrane of claim 1, wherein: the intensifying prisms (41) are in an inverted truncated cone shape or an inverted cone shape, and the intensifying prisms (41) are continuously arranged or uniformly arranged at intervals.
8. The diffusion membrane of claim 1, wherein: the protective layer (3) is an anti-glare coating and/or an anti-ultraviolet coating.
9. A backlight module is characterized in that: comprising a diffusion membrane according to any one of claims 1 to 8.
10. A display device, characterized in that: comprising a backlight module as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110542202.9A CN113189687A (en) | 2021-05-18 | 2021-05-18 | Diffusion film, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110542202.9A CN113189687A (en) | 2021-05-18 | 2021-05-18 | Diffusion film, backlight module and display device |
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| Publication Number | Publication Date |
|---|---|
| CN113189687A true CN113189687A (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110542202.9A Pending CN113189687A (en) | 2021-05-18 | 2021-05-18 | Diffusion film, backlight module and display device |
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| Country | Link |
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| CN (1) | CN113189687A (en) |
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| CN207742363U (en) * | 2017-12-21 | 2018-08-17 | 扬州万润光电科技有限公司 | A kind of optoelectronic film device |
| CN108776361A (en) * | 2018-05-02 | 2018-11-09 | 江苏帝摩斯光电科技有限公司 | A kind of integrated diffusion barrier of LCD backlight module |
| CN208506298U (en) * | 2018-04-26 | 2019-02-15 | 深圳Tcl新技术有限公司 | Optical compound film, backlight and liquid crystal display die set |
| CN109683377A (en) * | 2018-12-26 | 2019-04-26 | 宁波激智科技股份有限公司 | A kind of haze adhesive layer compositions and a kind of haze high brightness composite brightening film |
| CN212135108U (en) * | 2020-07-07 | 2020-12-11 | 深圳照东光控科技有限公司 | Composite brightness enhancement film |
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2021
- 2021-05-18 CN CN202110542202.9A patent/CN113189687A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2007072856A1 (en) * | 2005-12-21 | 2007-06-28 | Nippon Shokubai Co., Ltd. | Light diffusing sheet and light diffusing plate, and backlight unit and liquid crystal display device using them |
| CN103675963A (en) * | 2013-11-25 | 2014-03-26 | 昆山永翔光电科技有限公司 | Optical diffusion film and production process thereof |
| CN204314492U (en) * | 2014-12-18 | 2015-05-06 | 东莞市纳利光学材料有限公司 | A kind of diffusion brightening film |
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Application publication date: 20210730 |