CN107065047A - A kind of haze brightness enhancement film - Google Patents
A kind of haze brightness enhancement film Download PDFInfo
- Publication number
- CN107065047A CN107065047A CN201710089417.3A CN201710089417A CN107065047A CN 107065047 A CN107065047 A CN 107065047A CN 201710089417 A CN201710089417 A CN 201710089417A CN 107065047 A CN107065047 A CN 107065047A
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- China
- Prior art keywords
- brightness enhancement
- enhancement film
- diffusion
- spacing
- film according
- Prior art date
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Classifications
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
- G02B5/045—Prism arrays
-
- 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
-
- 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
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention provides a kind of haze brightness enhancement film, including a substrate layer, plural prism structure and plural diffusion structure are set in the side surface of substrate layer one, retain a spacing between wherein at least two prism structure, the diffusion structure is embedded in the spacing, the diffusion structure is included in matrix and diffusion particle, at least partially embedded matrix of diffusion particle.On the premise of monofilm is realized, haze and the effect of high brightness are kept, while solving the technical problem that brightness enhancement film prism is easily scratched in the prior art.
Description
Technical field
The present invention relates to a kind of optical film, in particular to a kind of haze brightness enhancement film.
Background technology
With continuing to develop for Display Technique, liquid crystal display (LCD) be increasingly being applied to such as mobile phone, from
Handheld computer device and larger equipment such as on knee electricity of the personal digital assistant (PDA) to electronic game machine scope
In brain, LCD monitor and video screen.Liquid crystal panel does not light in itself, therefore the backlight module originated as brightness is LCD
The significant components of display function, wherein brightness enhancement film are extremely important for improving LCD brightness, and brightness enhancement film realizes blast
The core of function is exactly prism structure, with the demand that market is thinned to display device, and increasing producer attempts to increase
Bright film integrates with other functional membranes, to reduce thickness.
Optical film of the prior art, is while the effect of high fog and blast is realized, generally using base material side setting rib
Mirror, opposite side set the mode of diffusion layer, consequently, it is possible to add the thickness of optical film, while asking of easily being scratched of prism
Topic can not be solved.
The content of the invention
It is a primary object of the present invention to provide a kind of haze brightness enhancement film, on the premise of monofilm is realized, keep high
The effect of mist degree and high brightness, while solving the technical problem that brightness enhancement film prism is easily scratched in the prior art.
To achieve these goals, including a substrate layer, set in the side surface of substrate layer one plural prism structure and
Retain a spacing between plural diffusion structure, wherein at least two prism structure, the diffusion structure is embedded in the spacing, described
Diffusion structure is included in matrix and diffusion particle, at least partially embedded matrix of diffusion particle.
Further, the spacing repeats in rule.
Further, the spacing occurs in irregular.
Further, the cross section of the prism structure is right angled triangle, and its any right-angle side is perpendicular to substrate layer table
Face, and it is relative to retain two prism structure right-angle sides of spacing.
Further, the spacing is 10-40 μm.
Further, the Refractive Index of Material of the prism structure is n1, and the refractive index of the matrix is n2, n1-n2 >=
0.01。
Further, the n1 values are that 1.47~1.67, n2 values are 1.35~1.62.
Further, the particle diameter of the diffusion particle is 3-20 μm.
Further, the thickness of the substrate layer is 100-200 μm.
Further, the height of the prism structure is 20-60 μm.
In the above-mentioned haze brightness enhancement film that the present invention is provided, mist degree and brightness are improved, while solving in the prior art
The technical problem that brightness enhancement film prism is easily scratched.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the structural representation of the optical film in one embodiment of the present invention；
Fig. 2 shows the structural representation of the optical film in another embodiment of the invention；
Fig. 3 shows the structural representation of the optical film in a further embodiment of this invention；
1 substrate layer, 2 prism structures, 3 diffusion structures, 4 matrix, 5 diffusion particles, W width (spacing), H height.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As described by background section, optical film of the prior art is while realizing high fog and the work of blast
With by the way of generally setting prism, opposite side setting diffusion layer using base material side, consequently, it is possible to add the thickness of optical film
Degree, while prism can not be solved the problem of easily being scratched.Therefore the present invention provides a kind of haze brightness enhancement film.
Fig. 1 is refer to, is one embodiment of the invention, including a substrate layer, the thickness of the substrate layer 1 is 100-200 μm,
The side surface of substrate layer 1 one is set between plural prism structure 2 and plural diffusion structure 3, wherein at least two prism structure
Retain a spacing W, the diffusion structure is embedded in the spacing, and the diffusion structure includes matrix 4 and diffusion particle 5, described to expand
In shot 5 at least partially embedded matrix 4 of son, the particle diameter of those diffusion particles 5 is 3-20 μm.
In the present embodiment, spacing W is 10-40 μm, and the height H of prism structure 3 is 20-60 μm, and the parameter can ensure
Prism structure is under relatively suitable density, it is ensured that the brightness enhancement function of brightness enhancement film, with being completely embedded into diffusion structure in time interval,
Just, being embedded in spacing W diffusion structure 3 can repeat the mist degree effect for improving brightness enhancement film in regularity, such as at intervals
Occur between two prism structures 2, when the brightness enhancement film is used in backlight module, the light of backlight generates uniform diffusion effect
Really；Meanwhile, diffusion structure 3 be embedded in the spacing so that the corner angle at the top of prism are filled and led up by diffusion structure, and then are solved
The technical problem that prism is easily scratched in the prior art.
In the present embodiment, the material of the prism structure 2 is selected from UV light-cured resins, heat reactive resin, or UV light heats
Solidify combination resin；Refractive index is n1, and the matrix 4 is selected from epoxy resin, contact adhesive, hot setting adhesive, UV solidifications
The hot combination and solidification adhesive of adhesive, UV/, optically clear adhesive, optical clear gel, and room temperature setting adhesive.Root
According to prism structure 2 and the selected materials of matrix 4, the refractive index n1 to 1.47~1.67 of prism structure 2 is adjusted respectively, adjusts the folding of matrix 4
Penetrate rate n2 to 1.35~1.62；The refractive index of prism structure 2 is set to be more than the refractive index of matrix 4, preferably n1-n2≥0.01.In this way,
So that light is passed through after the brightness enhancement film, optimum brightness and mist degree are reached.
Fig. 2 is refer to, is another embodiment of the present invention, compared with first embodiment, difference is the prism structure 2
Cross section is right angled triangle, and its any right-angle side retains spacing W two prism structures 2 perpendicular to the surface of substrate layer 1
Right-angle side is relative.Using this kind of structure, light passes through after prism structure 2, and direct light source is unnecessary to pass through diffusion structure 3 again,
Reduction is disturbed in brightness and the debugging of mist degree by the Refractive Index of Material of matrix 4, it is easy to debugged.Therefore, as long as ensureing prism knot
The Suitable Density of structure 2 and diffusion structure 3, the effect that just can be played not only blast but also spread, and the density and the spacing W,
Prism height H is related, therefore preferably W is 10-40 μm, H is 20-60 μm, diffusion brightening best results.
Fig. 3 is refer to, is further embodiment of this invention, compared with first embodiment, difference is the spacing not advise
The form of rule occurs so that diffusion structure 3 occurs at random, and diffusion structure 3 is embedded in the spacing W between two prism structures 2.Work as the back of the body
The light source of optical mode group is due to effect or radiating so that light source is in irregular arrangement, then the diffusion junctions in the present embodiment
Structure 3 can correspond to this kind of backlight module, even if light source is in irregular, by the irregular diffusion structure 3 for being spaced appearance
Diffusion, equally reaches the effect of uniform light diffusion.
Illustrated by above example, the brightness enhancement film of the invention existing brightness enhancement function on the premise of single layer of substrate material has expansion again
Dissipate function.Solve the technical problem that prior art brightness enhancement film prism structure is easily scratched simultaneously.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of haze brightness enhancement film, including a substrate layer, plural prism structure are set in the side surface of substrate layer one and multiple
Retain a spacing between number diffusion structure, wherein at least two prism structure, the diffusion structure is embedded in the spacing, the expansion
Dissipating bind structure is included in matrix and diffusion particle, at least partially embedded matrix of diffusion particle.
2. haze brightness enhancement film according to claim 1, it is characterised in that the spacing repeats in rule.
3. haze brightness enhancement film according to claim 1, it is characterised in that the spacing occurs in irregular.
4. haze brightness enhancement film according to claim 1, it is characterised in that the cross section of the prism structure is right angle three
Angular, its any right-angle side is perpendicular to base material layer surface, and it is relative to retain two prism structure right-angle sides of spacing.
5. haze brightness enhancement film according to claim 1, it is characterised in that the spacing is 10-40 μm.
6. haze brightness enhancement film according to claim 1, it is characterised in that the Refractive Index of Material of the prism structure is n1,
The refractive index of the matrix is n2, n1-n2≥0.01。
7. haze brightness enhancement film according to claim 6, it is characterised in that the n1Value is 1.47~1.67, n2Value
For 1.35~1.62.
8. haze brightness enhancement film according to claim 1, it is characterised in that the particle diameter of the diffusion particle is 3-20 μm.
9. the haze brightness enhancement film according to claim 1, it is characterised in that the thickness of the substrate layer is 100-200 μ
m。
10. haze brightness enhancement film according to claim 1, it is characterised in that the height of the prism structure is 20-60 μ
m。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710089417.3A CN107065047A (en) | 2017-02-20 | 2017-02-20 | A kind of haze brightness enhancement film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710089417.3A CN107065047A (en) | 2017-02-20 | 2017-02-20 | A kind of haze brightness enhancement film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107065047A true CN107065047A (en) | 2017-08-18 |
Family
ID=59622653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710089417.3A Pending CN107065047A (en) | 2017-02-20 | 2017-02-20 | A kind of haze brightness enhancement film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107065047A (en) |
Cited By (3)
| 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 |
| CN114114756A (en) * | 2021-12-09 | 2022-03-01 | 常州华威新材料有限公司 | Interference-relieving and pressure-resisting brightness enhancement film and preparation method thereof |
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| CN114114756A (en) * | 2021-12-09 | 2022-03-01 | 常州华威新材料有限公司 | Interference-relieving and pressure-resisting brightness enhancement film and preparation method thereof |
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