CN103226257B - Peep-proof device - Google Patents
Peep-proof device Download PDFInfo
- Publication number
- CN103226257B CN103226257B CN201310095003.3A CN201310095003A CN103226257B CN 103226257 B CN103226257 B CN 103226257B CN 201310095003 A CN201310095003 A CN 201310095003A CN 103226257 B CN103226257 B CN 103226257B
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- concavo
- peep
- band shape
- transparent resin
- 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.)
- Active
Links
Abstract
The invention provides a kind of peep-proof device, it comprises polarization elements, liquid crystal cell and diffusion component.Liquid crystal cell is arranged on polarization elements.Diffusion component is arranged on liquid crystal cell, it comprises transparent resin layer and liquid crystal layer, and transparent resin layer has refractive index, and the side of transparent resin layer is adjacent with liquid crystal cell, opposite side surface has a plurality of concavo-convex band shape microstructure, and the orientation of concavo-convex band shape microstructure is vertical with polarized light; Liquid crystal layer is arranged on the concavo-convex band shape microstructure of transparent resin layer, and it has the abnormal optical index in parallel concavo-convex band shape microstructured ar-rangement direction and the ordinary refraction index in vertical concavo-convex band shape microstructured ar-rangement direction.Above-mentioned abnormal optical index and ordinary refraction index different, the refractive index of transparent resin layer and the ordinary refraction index of liquid crystal layer are in identical in fact.Peep-proof device of the present invention utilizes designed by light scattering principle, and its mode that can regulate and control incident ray is voluntarily to reach effect of peep-proof.
Description
Technical field
The present invention has about a kind of light control device, and relates to a kind of peep-proof device utilized designed by light scattering principle especially.
Background technology
Recently, people promote for the consciousness of individual privacy, so large stretch of French window at home nearly all can stick on the minute surface reflective membrane of tool peep-proof characteristic to improve confidentiality at home, but the light penetration rate of this kind of anti-reflection film is not high, and weatherability is bad, thus can cause under Long-Time Service fade and irregular colour phenomenon produce.
Because above-mentioned minute surface reflective membrane can not adjust the mode of light in response to user's demand, therefore, the research that intelligent glass is relevant is also more and more flourish.Have a kind of electrically-controlled liquid crystal glass on the market at present, its know-why accompanies polymer dispersion type liquid crystal between two sheet glass, liquid crystal drop is dispersed in polymer base material by so-called polymer dispersion type liquid crystal exactly, utilizes the modulation of extra electric field to change the state of light penetration rate.But this kind of intelligent glass still has the problem of dispersed liquid crystal inequality and price, therefore is not yet producing in a large number on the market.
Summary of the invention
Because the shortcoming that above-mentioned minute surface sheathing paper and intelligent glass produce, the present invention proposes a kind of light control device, and particularly about a kind of peep-proof device utilized designed by light scattering principle, its advantage be can regulate and control incident ray voluntarily mode to reach effect of peep-proof.
According to one of the present invention embodiment, peep-proof device comprises polarization elements, transfers incident light to polarized light; Liquid crystal cell, it is arranged on polarization elements, comprises two transparency carriers, the liquid crystal between two transparency carriers and the driven unit in order to regulate and control direction of polarized light; Diffusion component, it is arranged on liquid crystal cell.Diffusion component comprises transparent resin layer, transparent resin layer has refractive index, and the side of transparent resin layer is adjacent with liquid crystal cell, the opposite side surface of transparent resin layer has a plurality of concavo-convex band shape microstructure, and the orientation of this plurality of concavo-convex band shape microstructure is vertical with polarized light; Liquid crystal layer, it is arranged on the concavo-convex band shape microstructure of transparent resin layer, it has abnormal optical index (the Extraordinary refractive index in this plurality of concavo-convex band shape microstructured ar-rangement direction parallel, ne) and vertical a plurality of concavo-convex band shape microstructured ar-rangement direction ordinary refraction index (Ordinary refractive index, no).Wherein, abnormal optical index and ordinary refraction index different, and the refractive index of transparent resin layer is identical with the ordinary refraction index of liquid crystal layer.
According to one embodiment of the invention, polarized light is 90 degree of polarized lights, and liquid crystal cell is homeotropic alignment liquid crystal box (Vertical Alignment Cell, VA cell).
According to another embodiment of the present invention, polarized light is 135 degree of polarized lights, and liquid crystal cell is Twisted Nematic liquid crystal box (Twist Nematic Cell, TN cell).
According to one embodiment of the invention, transparent resin layer is heat-curing resin or light-cured resin.
According to another embodiment of the present invention, the scope of the spacing of each this concavo-convex band shape microstructure on transparent resin layer surface is 10 μm to 1000 μm.
According to another embodiment of the present invention, the scope of the height of each this concavo-convex band shape microstructure on transparent resin layer surface is 10 μm to 1000 μm.
According to another embodiment of the present invention, the scope of the width of each this concavo-convex band shape microstructure on transparent resin layer surface is 10 μm to 1000 μm.
According to still another embodiment of the invention, the section shape of this concavo-convex band shape microstructure is triangle, semicircle, half elliptic, square or its combination.
According to still another embodiment of the invention, the liquid crystal material of liquid crystal layer is photo-polymerization type liquid crystal.
According to one embodiment of the invention, polarisation group is light polarizing film.
Compared with prior art, the peep-proof device utilized designed by light scattering principle that the present invention proposes, can regulate and control the mode of incident ray voluntarily to reach effect of peep-proof, and can be applied to the peep-proof related application such as glass or meeting room glass at home further.
Can be further understood by following detailed Description Of The Invention and institute's accompanying drawings about the advantages and spirit of the present invention.
Accompanying drawing explanation
Fig. 1 illustrates the cross-sectional view of the peep-proof device according to an embodiment of the present invention.
Fig. 2 A to Fig. 2 E illustrates each process stage diagrammatic cross-section of the manufacture method according to an embodiment of the present invention.
Fig. 3 illustrates the cross-sectional view of the peep-proof device according to another embodiment of the present invention.
Fig. 4 illustrates the amplification perspective view of the transparent resin layer according to Fig. 3.
Fig. 5 illustrates the cross-sectional view of the peep-proof device according to another embodiment of the present invention.
Fig. 6 illustrates the amplification profile structural representation of the transparent resin layer according to Fig. 5.
Fig. 7 illustrates the cross-sectional view of the peep-proof device according to another embodiment of the present invention.
Fig. 8 illustrates the amplification profile structural representation of the transparent resin layer according to Fig. 7.
Embodiment
In order to make describing of this disclosure more detailed and complete, hereafter have been directed to embodiments of the present invention and specific embodiment proposes illustrative description; But this not implements or uses the unique forms of the specific embodiment of the invention.Cover in embodiment multiple specific embodiment feature and in order to construction and these specific embodiments of operation method step with its sequentially.But, other specific embodiment also can be utilized to reach identical or impartial function and sequence of steps.
In the following description, following embodiment is fully understood describing many specific detail in detail to enable reader.But, can when putting into practice embodiments of the invention without when these specific detail.In other cases, be simplicity of illustration, the structure known and device are only schematically illustrated in figure.
Please refer to Fig. 1, illustrate the cross-sectional view of the peep-proof device 100 of one embodiment of the present invention.As shown in Figure 1, peep-proof device 100 comprises polarization elements 110, liquid crystal cell 120 and diffusion component 130, and wherein diffusion component 130 comprises transparent resin layer 131 and liquid crystal layer 132.
Above-mentioned polarization elements 110 is light polarizing film, and its effect transfers incident light to polarized light.The production method of light polarizing film the leaching of transparent polyvinyl alcohol film (Polyvinyl alcohol film, PVA film) is placed in severally to have iodine (Iodine I
2), potassium iodide (Potassium iodide, KI) and boric acid (Boric acid, H
3bO
3) tank solution in, then carry out extending, dyeing and drying and other steps, the optical characteristics such as the degree of polarization, penetrance and the form and aspect that make polyethylene film reach required.Finally this polyethylene film and diaphragm are fitted and can be obtained light polarizing film.Said protection film can be polyethylene terephthalate (polyethyleneterephthalate; PET), polycarbonate (polycarbonate; PC), Triafol T (triacetylcellulose; TAC), polymethylmethacrylate (polymethyl methacrylate; PMMA), cyclic olefin polymer (cyclo-olefin polymer, COP) or and combination.Said protection film has hard conating function (Hard-coating), anti-ultraviolet function (Anti-UV), anti-reflection function (Anti-reflection), anti-dizzy function (Anti-glare), infrared resistant function (Anti-IR) or its function combined.In another embodiment of the present invention, the penetrance of light polarizing film is greater than 40.0%; In another embodiment of the invention, degree of polarization is greater than 99.0%.Except iodine polarizing sheet, dyestuff system polaroid or metal type original screen panel also can reach identical polarization effect
Above-mentioned liquid crystal cell 120, it is arranged on polarization elements 110.Liquid crystal cell 120 comprises two transparency carriers, the liquid crystal between two transparency carriers and the driven unit in order to regulate and control direction of polarized light.Liquid crystal cell 120, such as, can be homeotropic alignment liquid crystal box or Twisted Nematic liquid crystal box.Transparency carrier such as can be glass substrate.
Above-mentioned diffusion component 130, it is arranged on liquid crystal cell 120.Diffusion component comprises transparent resin layer 131 and liquid crystal layer 132.The side of transparent resin layer 131 is adjacent with liquid crystal cell 120, and the surface of the opposite side of transparent resin layer has a plurality of concavo-convex band shape microstructure 133 arranged in parallel adjacent to liquid crystal layer 132.The material of the transparent resin layer 131 in diffusion component 130 can be heat-curing resin (Thermo-curable resin) or UV curable resin (UV curable resin), the group that such as optional free acryl resin (Acrylic resin), silicones (Silicone resin), polyurethane (Polyurethane resin) or epoxy resin (Epoxyresin) form.The section shape of above-mentioned concavo-convex band shape microstructure is triangle, semicircle, half elliptic, square or its combination.The liquid crystal material of liquid crystal layer 132 can be polymerizable liquid crystal, such as, can be optical polymerism active liquid wafer.
Fig. 2 A to Fig. 2 E illustrates each process stage diagrammatic cross-section of the manufacture method of an embodiment of the present invention.
First, base material 231 is provided, as shown in Figure 2 A.Base material 231 can be fractal film.
Then, as shown in Figure 2 B, curable transparent resin is coated on base material 231 to form transparent resin layer 232.The coating process of transparent resin is known known by the knowledgeable for having in art usually, such as slot coated method (die coating) or gravure coat method (gravure coating).Above-mentioned curable resin can be heat-curing resin or UV curable resin, such as optional free acryl resin, silicones, the group that polyurethane or epoxy resin form.
After coating curable resin, form a plurality of concavo-convex band shape microstructure arranged in parallel in transparent resin layer surface with the die marks transparent resin layer 232 with predetermined pattern, then by heat curing or ultraviolet curing transparent resin bed 233, as shown in Figure 2 C.The above-mentioned mould with predetermined pattern or can be patterning roller impressing mould for patterned planar impressing mould.
Then, to form liquid crystal layer 234 on concavo-convex band shape microstructure liquid crystal material being coated transparent resin layer 233, drying can obtain diffusion component 230.And the liquid crystal material of liquid crystal layer 234 can be polymerizable liquid crystal, such as, can be the active liquid crystal of optical polymerism.
Finally, diffusion component 230 and polarization elements 210 are fitted with liquid crystal cell 220 respectively, is peep-proof device, as shown in Figure 2 E.
Fig. 3 illustrates the cross-sectional view of the peep-proof device 300 of another embodiment of the present invention.Peep-proof device 300 comprises polarization elements 310; Liquid crystal cell 320, it is arranged on polarization elements 310; And diffusion component 330, it is arranged on liquid crystal cell 320.
As shown in Figure 3, polarization elements 310 is light polarizing film, and light polarizing film comprises the polyethylene film 312 (hereinafter referred to as polarisation) of tool polarized light property, and is positioned at the diaphragm 311,313 of polarisation 312 both sides.Diaphragm 311,313 is all Triafol T.Above-mentioned light polarizing film has polarizing axis, can transfer incident light to polarized light.In one embodiment of the invention, polarizing axis angle is 90 degree, these the 90 degree angles being defined as polarizing axis and horizontal direction.
Liquid crystal cell 320 is homeotropic alignment liquid crystal box, its by two glass substrates 321,323, be positioned at the liquid crystal 322 between two glass substrates and the driven unit in order to regulate and control direction of polarized light formed, wherein liquid crystal 322 is such as vertically aligned liquid crystal.
Above-mentioned polarization elements 310 more comprises adhesion layer 314, and in order to fit with liquid crystal cell 320, adhesion layer 314 material can be pressure-sensing glue.Except pressure-sensing glue, the material of adhesion layer can be ultraviolet cured adhesive.
Above-mentioned diffusion component 330, it is arranged on liquid crystal cell 320.Diffusion component comprises transparent resin layer 331 and liquid crystal layer 332.The side of transparent resin layer 331 is adjacent with liquid crystal cell 320, and the surface of the opposite side of transparent resin layer 331 has a plurality of concavo-convex band shape microstructure arranged in parallel, and it is adjacent with liquid crystal layer 332.Transparent resin layer 331 is curable resin, and it has refractive index.The curable resin used in one embodiment of the invention is acryl resin, and its refractive index is 1.6.Liquid crystal layer 332 have parallel concavo-convex band shape microstructured ar-rangement direction abnormal optical index ne and vertically those concavo-convex band shape microstructured ar-rangement directions ordinary refraction index no, and abnormal optical index ne and ordinary refraction index no is different, the ordinary refraction index no of liquid crystal layer 332 is identical with the refractive index of above-mentioned transparent resin layer 331.In one embodiment, the material that liquid crystal layer 332 uses is optical polymerism liquid crystal, and its ne is 1.5, no is 1.6.
Then, the amplification perspective view of the transparent resin layer 331 described in Fig. 3 is illustrated please also refer to Fig. 4, Fig. 4.One side surface of transparent resin layer has a plurality of concavo-convex band shape microstructure 410 arranged in parallel, and as shown in Figure 4, concavo-convex band shape microstructure 410 is arranged in parallel each other, and the section shape of each concavo-convex band shape microstructure is square.Wherein, the scope of the width W 1 of each concavo-convex band shape microstructure 410 is 10 μm to 1000 μm; Be preferably 200 μm to 600 μm; Be more preferred from 300 μm to 500 μm.The scope of the height D1 of each concavo-convex band shape microstructure 410 is 10 μm to 1000 μm; Be preferably 20 μm to 500 μm; Be more preferred from 100 μm to 200 μm.And the scope of the interval S 1 of each concavo-convex band shape microstructure 410 is 10 μm to 1000 μm; Be preferably 100 μm to 500 μm; Be more preferred from 200 μm to 300 μm.
The refractive index of the transparent resin layer of above-mentioned diffusion component and the design of concave-convex surface band shape microstructure and the refractive index of liquid crystal layer are arranged in pairs or groups all in order to regulate and control the emission mode of polarized light.About peep-proof device proposed by the invention, its detailed practical function mode is as follows.
Peep-proof device as shown in Figure 3, when light polarization elements, namely produces 90 degree of polarized lights, then utilizes liquid crystal cell to regulate and control the direction of this polarized light.When not driving liquid crystal cell, the Liquid Crystal Molecules Alignment direction in liquid crystal cell is vertical with glass substrate, therefore 90 degree of polarized lights, through after liquid crystal cell, still maintain the direction of 90 degree originally.Then, when these 90 degree of polarized lights are by diffusion component, because the orientation of the concavo-convex band shape microstructure on transparent resin layer surface is vertical with 90 degree of polarized lights, and the refractive index that transparent resin layer possesses is identical with the ordinary refraction index of liquid crystal layer, the phenomenon that scattering does not occur when therefore 90 degree of polarized lights are perforated through diffusion component produces.Therefore when not driving liquid crystal cell, incident light still maintains state originally.
Otherwise when driving liquid crystal cell, polarized light will change 0 degree of polarized light into.When this 0 degree of polarized light passes through in diffusion component, the abnormal optical index of the refractive index possessed because of transparent resin layer and liquid crystal layer is different, therefore will produce the phenomenon of light scattering in the concavo-convex band shape microstructure on transparent resin layer surface and the interface of liquid crystal layer.Therefore when driving liquid crystal cell, peep-proof device by light toward spreading, and can cause image fog, to reach the effect of peep-proof from all directions.
Fig. 5 illustrates the cross-sectional view of the peep-proof device of another embodiment of the present invention.Peep-proof device 500 comprises polarization elements 510; Liquid crystal cell 520, it is arranged on polarization elements; And diffusion component 530, it is arranged on liquid crystal cell 520.
Polarization elements 510 is light polarizing film, and light polarizing film comprises the polyethylene film (hereinafter referred to as polarisation) 512 of tool polarized light property, and the diaphragm 511 of the side being positioned at polarisation 512 formed.Diaphragm 511 is polyethylene terephthalate, is positioned at the outermost of peep-proof device 500.Above-mentioned polarization elements 510 has polarizing axis, can transfer incident light to polarized light.In one embodiment of the invention, polarizing axis angle is 135 degree, these the 135 degree angles being defined as polarizing axis and horizontal direction.
Liquid crystal cell 520 is Twisted Nematic liquid crystal box, and in order to regulate and control the direction of polarized light, it is made up of two glass substrates 521,523 and the liquid crystal 522 be positioned between two glass substrates, and wherein liquid crystal 522 is such as Twisted Nematic liquid crystal.
Above-mentioned polarization elements 510 more comprises adhesion layer 513, and in order to fit with liquid crystal cell 520, the material of adhesion layer 513 can be ultraviolet cured adhesive.
Above-mentioned diffusion component 530, it is arranged on liquid crystal cell 520.Diffusion component comprises transparent resin layer 531 and liquid crystal layer 532 further.The side of transparent resin layer 531 is adjacent with this liquid crystal cell 520, and the surface of the opposite side of transparent resin layer 531 has a plurality of concavo-convex band shape microstructure, and it is adjacent with liquid crystal layer 532.The transparent resin layer material that the present embodiment uses is identical with 331 in Fig. 3, is acryl resin, and its refractive index is 1.6.The liquid crystal material that above-mentioned liquid crystal layer 532 uses is polymerizable liquid crystal, and its ne is 1.5, no is 1.6.
Fig. 6 illustrates the amplification profile structural representation of the transparent resin layer 531 described in Fig. 5.One side surface of transparent resin layer 531 has a plurality of concavo-convex band shape microstructure 610 arranged in parallel, and the section shape of each concavo-convex band shape microstructure is triangle.Its each concavo-convex scope being with the width W 2 of shape microstructure is 10 μm to 1000 μm; Be preferably 200 μm to 600 μm; Be more preferred from 300 μm to 500 μm.And the scope of the height D2 of each concavo-convex band shape microstructure is 10 μm to 1000 μm; Be preferably 20 μm to 500 μm; Be more preferred from 100 μm to 200 μm.And the scope of the interval S 2 of each concavo-convex band shape microstructure 610 is 10 μm to 1000 μm; Be preferably 100 μm to 500 μm; Be more preferred from 200 μm to 300 μm.
Fig. 7 illustrates the cross-sectional view of the peep-proof device of another embodiment of the present invention.The structure of peep-proof device 700 is similar to above-mentioned peep-proof device 500, and its deviation is only the transparent resin layer 731 in polarization elements 710 and diffusion component 730, and certainly, diffusion component 730, except comprising transparent resin layer 731, also also comprises liquid crystal layer 732.
Polarization elements 710 is light polarizing film, and this light polarizing film is made up of polyethylene film 713 and diaphragm 712.Diaphragm is Triafol T.And the surface of Triafol T 712 has hard conating 711, it is positioned at the outermost of peep-proof device 700, in order to strengthen the surperficial scratch resistance intensity of peep-proof device.Above-mentioned polarization elements 710 more comprises adhesion layer 714, and in order to fit with liquid crystal cell 720, the material of adhesion layer 714 can be ultraviolet cured adhesive.
In another embodiment of the present invention, diaphragm has anti-dizzy function (Anti-glare), hard conating function (Hard-coating), anti-reflection function (Anti-reflection) or its function combined.
Liquid crystal cell 720 is made up of two glass substrates 721,723 and the liquid crystal 722 be positioned between two glass substrates.
Fig. 8 illustrates the amplification profile structural representation of the transparent resin layer 731 described in Fig. 7.One side surface of transparent resin layer 731 has a plurality of concavo-convex band shape microstructure 810,820 arranged in parallel, is made up of a plurality of semiellipse post varied in size.As shown in Figure 8, concavo-convex band shape microstructure 810,820 arrangement mode and to be irregularly staggered.Width W 3 corresponding to concavo-convex band shape microstructure 810 and 820 and the scope of W4 are 10 μm to 1000 μm; Be preferably 200 μm to 600 μm; Be more preferred from 300 μm to 500 μm.The scope of height D3 and D4 corresponding to concavo-convex band shape microstructure 810 and 820 is 10 μm to 1000 μm; Be preferably 20 μm to 500 μm; Be more preferred from 100 μm to 200 μm.Interval S 3 scope of concavo-convex band shape microstructure 810,820 is 0 μm to 1000 μm; Be preferably 100 μm to 500 μm; Be more preferred from 200 μm to 300 μm.
Those above-mentioned carried concavo-convex band shape microstructures, the design of its width, height and spacing is all the phenomenon spread to make the interface of those concavo-convex band shape microstructures and liquid crystal layer produce light.If the width of this concavo-convex band shape microstructure, height and spacing to each other exceed scope of the present invention, the poor effect that light spreads will be caused, namely cannot reach the effect of peep-proof.
The present invention proposes a kind of peep-proof device utilized designed by light scattering principle, can regulate and control the mode of incident ray voluntarily to reach effect of peep-proof, and can be applied to the peep-proof related application such as glass or meeting room glass at home further.
In sum, although the present invention with preferred embodiment disclose as above, so itself and be not used to limit the present invention.Persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is when being as the criterion depending on those as defined in claim.
Claims (9)
1. a peep-proof device, is characterized in that comprising:
Polarization elements, transfers incident light to polarized light;
Liquid crystal cell, it is arranged on this polarization elements, comprises two transparency carriers, is positioned at liquid crystal between these two transparency carriers and the driven unit in order to the exit direction that regulates and controls polarized light; And
Diffusion component, it is arranged on this liquid crystal cell, and this diffusion component comprises:
Transparent resin layer, it has refractive index, and the side of this transparent resin layer is adjacent with this liquid crystal cell, the opposite side surface of this transparent resin layer has a plurality of concavo-convex band shape microstructure arranged in parallel, and the orientation of this plurality of concavo-convex band shape microstructure is vertical with the exit direction of this polarized light; And
Liquid crystal layer, it is arranged on this plurality of concavo-convex band shape microstructure of this transparent resin layer, and this liquid crystal layer have parallel this plurality of concavo-convex band shape microstructured ar-rangement direction abnormal optical index and vertically this plurality of concavo-convex band shape microstructured ar-rangement direction ordinary refraction index;
Wherein, this abnormal optical index and this ordinary refraction index different, and the refractive index of this transparent resin layer is identical with this ordinary refraction index of this liquid crystal layer.
2. peep-proof device as claimed in claim 1, it is characterized in that this polarized light is the polarized light of 90 degree, this liquid crystal cell is homeotropic alignment liquid crystal box; Or this polarized light is the polarized light of 135 degree, this liquid crystal cell is Twisted Nematic liquid crystal box.
3. peep-proof device as claimed in claim 1, is characterized in that this transparent resin layer is heat-curing resin or light-cured resin.
4. peep-proof device as claimed in claim 1, is characterized in that the scope of the spacing of adjacent two concavo-convex band shape microstructures is 10 μm to 1000 μm.
5. peep-proof device as claimed in claim 1, is characterized in that the scope of the width of each this concavo-convex band shape microstructure is 10 μm to 1000 μm.
6. peep-proof device as claimed in claim 1, is characterized in that the scope of the height of each this concavo-convex band shape microstructure is 10 μm to 1000 μm.
7. peep-proof device as claimed in claim 1, is characterized in that the section shape of each this concavo-convex band shape microstructure is triangle, semicircle, half elliptic, square or its combination.
8. peep-proof device as claimed in claim 1, is characterized in that the liquid crystal material in this liquid crystal layer is photo-polymerization type liquid crystal.
9. peep-proof device as claimed in claim 1, is characterized in that this polarization elements is light polarizing film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310095003.3A CN103226257B (en) | 2013-03-23 | 2013-03-23 | Peep-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310095003.3A CN103226257B (en) | 2013-03-23 | 2013-03-23 | Peep-proof device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103226257A CN103226257A (en) | 2013-07-31 |
| CN103226257B true CN103226257B (en) | 2015-09-23 |
Family
ID=48836758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310095003.3A Active CN103226257B (en) | 2013-03-23 | 2013-03-23 | Peep-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103226257B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106094059B (en) * | 2016-07-21 | 2018-09-11 | 京东方科技集团股份有限公司 | A kind of composite membrane, polaroid and display device for display |
| CN106019696A (en) * | 2016-08-12 | 2016-10-12 | 京东方科技集团股份有限公司 | Display module and display device |
| CN107102460B (en) * | 2017-07-06 | 2023-02-17 | 京东方科技集团股份有限公司 | Peep-proof device, display and driving method of display |
| CN111796448A (en) | 2020-07-02 | 2020-10-20 | Tcl华星光电技术有限公司 | Viewing angle adjusting film structure, manufacturing method thereof and display device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360136A (en) * | 2011-10-26 | 2012-02-22 | 南京中电熊猫液晶显示科技有限公司 | Anti-peep liquid crystal display |
| CN202357548U (en) * | 2011-11-13 | 2012-08-01 | 上海光大高科技股份有限公司 | Peep-proof film |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009145410A (en) * | 2007-12-11 | 2009-07-02 | Fujifilm Corp | Anisotropic scattering plate and method of manufacturing the same |
-
2013
- 2013-03-23 CN CN201310095003.3A patent/CN103226257B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360136A (en) * | 2011-10-26 | 2012-02-22 | 南京中电熊猫液晶显示科技有限公司 | Anti-peep liquid crystal display |
| CN202357548U (en) * | 2011-11-13 | 2012-08-01 | 上海光大高科技股份有限公司 | Peep-proof film |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103226257A (en) | 2013-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI484252B (en) | Privacy device | |
| CN103226257B (en) | Peep-proof device | |
| CN102519010B (en) | Composite optical film and backlight module using same | |
| US20140110040A1 (en) | Imprinted micro-louver structure method | |
| WO2015182685A1 (en) | Wavelength conversion member, backlight unit, polarizing plate, liquid crystal panel and liquid crystal display device | |
| WO2016173018A1 (en) | Polarizer and method for preparing same, and liquid crystal panel | |
| CN101128758A (en) | Composite polymeric optical films with co-continuous phases | |
| CN102736141A (en) | Beam direction control element and method of manufacturing same | |
| CN101142500A (en) | Polymeric photonic crystals with co-continuous phases | |
| CN103336328A (en) | Polaroid assembly and display equipment | |
| KR101219591B1 (en) | Back light guide plate and manufacturing method for the same | |
| CN105911760A (en) | Lateral entrance type backlight module and display device | |
| CN107111017A (en) | High index of refraction composite for reflective display | |
| CN103364992A (en) | Reflection polarization brightness enhancement film and manufacturing method thereof | |
| CN102822700A (en) | Durability-enhanced optical sheet and backlight unit having the same | |
| CN114114499A (en) | Polarization-maintaining optical film, polarization-maintaining diffusion film and double-sided fog polarization-maintaining diffusion film | |
| CN114114498A (en) | Polarization-maintaining optical film and polarization-maintaining diffusion film | |
| CN114114500A (en) | Polarization-maintaining optical film, polarization-maintaining diffusion film and double-sided fog polarization-maintaining diffusion film | |
| CN103885219A (en) | Light switching module | |
| CN102967962A (en) | Transparent polymer dispersed liquid crystal display device and manufacturing method and application thereof | |
| CN101887138A (en) | Photoelectric diffusion barrier with full gloss permeability and good photic diffusivity | |
| CN110770646B (en) | Substrate board | |
| CN108091256A (en) | Display apparatus module and its manufacturing method | |
| CN109270624A (en) | Light guide plate and preparation method thereof, backlight module and display panel | |
| KR20150085382A (en) | Complex optical sheet and optical display apparatus comprising the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |