CN108445673A - A kind of optic film structure and backlight assembly - Google Patents
A kind of optic film structure and backlight assembly Download PDFInfo
- Publication number
- CN108445673A CN108445673A CN201810173124.8A CN201810173124A CN108445673A CN 108445673 A CN108445673 A CN 108445673A CN 201810173124 A CN201810173124 A CN 201810173124A CN 108445673 A CN108445673 A CN 108445673A
- Authority
- CN
- China
- Prior art keywords
- film structure
- optical path
- optic film
- light
- path modulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
- C08L63/10—Epoxy resins modified by unsaturated compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/06—Unsaturated polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
Abstract
The invention discloses a kind of optic film structure and backlight assemblies, wherein optic film structure includes base material (100), there is the base material (100) first surface and second surface, light to be left through the second surface after the first surface incidence, it is characterised in that：The second surface is equipped with several optical path modulation portions (200), and high light-reflecting portion (300) is equipped between the optical path modulation portion (200) to reflect the light for being incident on the high light-reflecting portion (300).Optic film structure and backlight assembly provided by the invention have high shielding, while having high briliancy, so that display screen is had while ensureing peep-proof effect and clearly indicate effect.
Description
Technical field
The present invention relates to technical field of liquid crystal display, more particularly to a kind of optic film structure and backlight assembly.
Background technology
Liquid crystal display is common electronic display, and liquid crystal is a kind of passive luminescent material, needs to rely on back light
The display of image is realized, but general illuminating source angle is larger, it is difficult to accomplish to show the shielding of information.
Peep-proof film in the prior art mainly and obtains the dark lid glue for scattering one layer of low light transmission of light in cover
The convergence of excellent emergent light light, and being confined in angle of visibility appropriate (effective district) range, makes to reach display picture and has
There is the effect of peep-proof.But the structure has some disadvantages：Because reducing angle of visibility angle, and the layer depth color covered above
The lid glue of (or black) covers, and the light ratio of transmission is made to be greatly lowered, and the picture briliancy of display is caused to reduce.
Invention content
Based on the problems of the prior art, an object of the present invention is to provide a kind of optic film structure, rises with high
Shielding, while the briliancy of display picture can be improved.
It is a further object of the present invention to provide a kind of backlight assemblies.
Based on the above issues, one of technical solution provided by the invention is：
A kind of optic film structure, including base material, the base material have first surface and second surface, and light is through described first
It is left through the second surface after the incidence of surface, the second surface is equipped with several optical path modulation portions to incident light is saturating
It is incident upon in visible angle, high light-reflecting portion is equipped between the optical path modulation portion to reflect the light for being incident on the high light-reflecting portion.
In one of which embodiment, the optical path modulation portion is trapezoidal column structure, the optical path modulation portion
Section is trapezoidal.
In one of which embodiment, light path tune is equipped between several described optical path modulation portions and the second surface
Base portion processed, the optical path modulation base portion are made with the optical path modulation portion using identical material.
In one of which embodiment, the upper bottom width in the optical path modulation portion, bottom width, upper bottom to second surface
Height ratio be 1: (1.2~1.4): (3.0~5.0).
In one of which embodiment, the high light-reflecting portion is tri-prismoid structure, and plane and the light path thereon
The upper bottom of modulation portion is in the same plane.
In one of which embodiment, the weight composition of the raw material of the high light-reflecting portion includes：
UV resins 10~70%；
High reflecting material 25~50%；
Dispersant 0.5~5%.
In one of which embodiment, the UV resins are the polyurethane propylene for not waiting multiple functional radicals with 1 or more
Acid esters oligomer, epoxy acrylate oligomer, polyester acrylate oligomers or with 1 or more the multiple functional radicals third such as not
It is one or more in olefin(e) acid ester reaction monomers.
In one of which embodiment, the high reflecting material is the sub-micron grade titanium dioxide that grain size is 0.1~0.4 μm
Titanium valve body or the superfine nano grade titanium dioxide powder that grain size is 0.01~0.1nm.
In one of which embodiment, the dispersant is one kind or more in BYK-110, BYK-111, BYK-333
Kind.
In one of which embodiment, the raw material further includes the photoinitiator that absorbing wavelength is 380~440nm.
Further include fluorescent whitening agent in the raw material in one of which embodiment.
In one of which embodiment, the high light-reflecting portion is 90% or more to the reflectivity of visible light.
Based on the above issues, technical solution provided by the invention second is that：
A kind of backlight assembly, including the optic film structure described in above-mentioned any one.
Compared with prior art, it is an advantage of the invention that：
High light-reflecting portion is arranged between the optical path modulation portion of trapezoidal column structure in technical solution using the present invention, when
When incident light reaches high light-reflecting portion, avoidable light penetrates, and incident light part re-uses after being reflected, and another part is reflected simultaneously
It is transmitted through in visible angle through optical path modulation portion, so that more light is reached in visible angle, improve the ratio of emergent light, to
Improve the clarity for showing picture.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, drawings in the following description are only some embodiments of the invention, for the common skill in this field
For art personnel, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of structural schematic diagram of optic film structure embodiment of the present invention；
Wherein：
100, base material；
200, optical path modulation portion；
300, high light-reflecting portion；
400, optical path modulation base portion；
1, incident light；
2, emergent light；
3, reflected light；
4, the gain of light after reflecting；
A1, optical path modulation portion upper bottom width；
A2, optical path modulation subordinate's bottom width degree；
H, height of the bottom to second surface in optical path modulation portion.
Specific implementation mode
Said program is described further below in conjunction with specific embodiment.It should be understood that these embodiments are for illustrating
The present invention and be not limited to limit the scope of the invention.The implementation condition used in embodiment can be done according to the condition of specific producer
Further adjustment, the implementation condition being not specified is usually the condition in routine experiment.
Referring to Fig. 1, it is the structural schematic diagram of the embodiment of the present invention, a kind of optic film structure is provided comprising base material 100,
The base material 100 has first surface and second surface, and light leaves after first surface incidence through second surface, in second surface
Several optical path modulation portions 200 are equipped with incident light to be transmitted through in visible angle, which is trapezoidal column
Shape body structure, the section in optical path modulation portion 200 is trapezoidal, and high light-reflecting portion 300 is equipped between optical path modulation portion 200, for
The light of high light-reflecting portion 300 is incident in reflection, and high light-reflecting portion 300 is 90% or more to the reflectivity of visible light, incident light part quilt
It is re-used after reflection, another part is reflected and is transmitted through in visible angle through optical path modulation portion 200, and the increasing of briliancy is used for
Benefit.
In this example, high light-reflecting portion 300 is filled in the V-type groove between optical path modulation portion 200, and high light-reflecting portion 300 is three
Prism structure, and the upper plane of high light-reflecting portion 300 and the upper bottom in optical path modulation portion 200 are generally aligned in the same plane.
In implementation, optical path modulation base portion 400, the light are equipped between optical path modulation portion 200 and the second surface of base material 100
The height that base portion 400 is modulated on road is 15~120 μm, and is made of identical material with optical path modulation portion 200.
In this example, a1=21 μm of optical path modulation portion upper bottom width, a2=26 μm of optical path modulation subordinate's bottom width degree, optical path modulation
The height of base portion 400 is 15 μm, height h=70 μm of the bottom to second surface in optical path modulation portion, it should be appreciated that optical path modulation portion
200 size can be configured as needed.Preferably, the upper bottom width in optical path modulation portion 200, bottom width, upper bottom to the
The ratio of the height on two surfaces is 1: (1.2~1.4): (3.0~5.0).
The raw material weight composition of high light-reflecting portion 300 includes 10~70% UV resins；25~50% high reflecting material；
0.5~5% dispersant.
Wherein, UV resins are urethane acrylate oligomer, the epoxy acrylic for not waiting multiple functional radicals with 1 or more
Ester oligomer, polyester acrylate oligomers or with one kind in 1 or more multi-functional yl methacrylates' reaction monomers such as not
Or it is a variety of.High reflecting material is that grain size is 0.1~0.4 μm of sub-micron grade titanium dioxide powder or grain size is 0.01~0.1nm
Superfine nano grade titanium dioxide powder；Commercially available BYK-110, BYK-111, BYK-333 (Bi Kehua can be used in dispersant
Learn) in it is one or more.Titanium dioxide powder is added in UV resins, then adding dispersant makes powder be uniformly mixed,
It is molded to obtain high light-reflecting portion 300 by UV solidifications, mold.
In order to advanced optimize the implementation result of the present invention, it is the light-initiated of 380~440nm to also have absorbing wavelength in raw material
Agent, it is bis- (2,4,6- trimethylbenzoyl) for example, by using double 2,6-, the bis- fluoro- 3- pyrroles's phenyl titanocenes of photoinitiator or phenyl
Phosphine oxide, to improve UV solidification effects.
In order to advanced optimize the implementation result of the present invention, it is additionally added fluorescent whitening agent in raw material, to improve reflection effect
The CHTEX-127, OB-1 of commercially available double bond chemical industry can be selected in fruit, fluorescent whitening agent.
The foregoing examples are merely illustrative of the technical concept and features of the invention, its object is to allow the person skilled in the art to be
It cans understand the content of the present invention and implement it accordingly, it is not intended to limit the scope of the present invention.It is all smart according to the present invention
The equivalent transformation or modification that refreshing essence is done, should be covered by the protection scope of the present invention.
Claims (12)
1. a kind of optic film structure, including base material (100), the base material (100) has first surface and second surface, light warp
It is left through the second surface after the first surface incidence, it is characterised in that：The second surface is equipped with several light paths
Modulation portion (200) is equipped with high light-reflecting portion incident light to be transmitted through in visible angle between the optical path modulation portion (200)
(300) reflecting the light for being incident on the high light-reflecting portion (300).
2. optic film structure according to claim 1, it is characterised in that：The optical path modulation portion (200) is trapezoidal column
The section of body structure, the optical path modulation portion (200) is trapezoidal.
3. optic film structure according to claim 2, it is characterised in that：Several described optical path modulation portions (200) and institute
It states and is equipped with optical path modulation base portion (400) between second surface, the optical path modulation base portion (400) and the optical path modulation portion
(200) it is made using identical material.
4. optic film structure according to claim 3, it is characterised in that：The upper bottom width of the optical path modulation portion (200),
Go to the bottom width, upper bottom to second surface height ratio be 1: (1.2~1.4): (3.0~5.0).
5. optic film structure according to claim 2, it is characterised in that：The high light-reflecting portion (300) is tri-prismoid knot
Structure, and plane and the upper bottom of the optical path modulation portion (200) are in the same plane thereon.
6. optic film structure according to claim 1, it is characterised in that：The weight group of high light-reflecting portion (300) raw material
At including：
UV resins 10~70%；
High reflecting material 25~50%；
Dispersant 0.5~5%.
7. optic film structure according to claim 6, it is characterised in that：The UV resins are that urethane acrylate is oligomeric
It is one or more in object, epoxy acrylate oligomer, polyester acrylate oligomers or acrylate reactions monomer.
8. optic film structure according to claim 6, it is characterised in that：The high reflecting material is that grain size is 0.1~0.4
μm sub-micron grade titanium dioxide powder or grain size be 0.01~0.1nm superfine nano grade titanium dioxide powder.
9. optic film structure according to claim 6, it is characterised in that：The raw material further include absorbing wavelength be 380~
The photoinitiator of 440nm.
10. optic film structure according to claim 6, it is characterised in that：Further include fluorescent whitening agent in the raw material.
11. optic film structure according to claim 1, it is characterised in that：The high light-reflecting portion (300) is to the anti-of visible light
It is 90% or more to penetrate rate.
12. a kind of backlight assembly, it is characterised in that：Including the optic film structure described in claim 1 to 11 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810173124.8A CN108445673A (en) | 2018-03-02 | 2018-03-02 | A kind of optic film structure and backlight assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810173124.8A CN108445673A (en) | 2018-03-02 | 2018-03-02 | A kind of optic film structure and backlight assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108445673A true CN108445673A (en) | 2018-08-24 |
Family
ID=63192913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810173124.8A Pending CN108445673A (en) | 2018-03-02 | 2018-03-02 | A kind of optic film structure and backlight assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108445673A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109445173A (en) * | 2019-01-02 | 2019-03-08 | 京东方科技集团股份有限公司 | A kind of peep-proof film and preparation method thereof, display module |
| CN112965228A (en) * | 2021-03-19 | 2021-06-15 | 重庆京东方显示照明有限公司 | Peep-proof film, display panel and display device |
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Application publication date: 20180824 |
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