CN113946070A - Phase delay polaroid, processing technology thereof and optical display device - Google Patents
Phase delay polaroid, processing technology thereof and optical display device Download PDFInfo
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- CN113946070A CN113946070A CN202111125176.6A CN202111125176A CN113946070A CN 113946070 A CN113946070 A CN 113946070A CN 202111125176 A CN202111125176 A CN 202111125176A CN 113946070 A CN113946070 A CN 113946070A
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- 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
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- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
- G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
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- 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
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- 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
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Abstract
The application relates to the technical field of polarizer processing, and particularly discloses a phase retardation polarizer, a processing technology thereof and an optical display device, wherein the phase retardation polarizer comprises a linear polarizer, a phase retardation plate arranged on the light emergent surface of the linear polarizer and a haze coating arranged on the surface of the phase retardation plate far away from the linear polarizer, and the haze of the haze coating is 1-50%; the phase retarder has a retardation of 95-220nm at a wavelength of 550 nm; the linear polarizer is fixedly connected with the phase retarder through the bonding layer I. The phase delay polaroid can enable a user wearing polarized sunglasses to see clearly the picture on the display screen through the mutual matching of the linear polaroid, the phase delay sheet and the haze coating, and simultaneously, the reflection glare of a bright light source is reduced.
Description
Technical Field
The present invention relates to the field of polarizer processing technologies, and more particularly, to a phase retardation polarizer, a processing process thereof, and an optical display device.
Background
The polaroid is also called as a polaroid, the imaging of the liquid crystal display is dependent on polarized light, and the front and the rear polaroids of the liquid crystal display are tightly attached to liquid crystal glass to form the liquid crystal sheet with the total thickness of about 1 mm. When the display screen is used outdoors, a user wearing polarized sunglasses sometimes cannot see pictures on the display screen, so that normal use of the display screen is affected, and in addition, under a bright light source, the display screen can often reflect bright glare, so that the actual contrast of the display screen is affected.
Disclosure of Invention
In order to enable a user wearing polarized sunglasses to see pictures on a display screen and simultaneously reduce reflection glare of a bright light source, the application provides a phase delay polarizer and a processing technology thereof.
In a first aspect, the present application provides a phase retardation polarizer, which adopts the following technical scheme:
the phase retardation polarizer comprises a linear polarizer, a phase retardation sheet arranged on the light emergent surface of the linear polarizer and a haze coating arranged on the surface of the phase retardation sheet far away from the linear polarizer;
the haze of the haze coating is 1-50%;
the phase retarder has a retardation of 95-220nm at a wavelength of 550 nm;
the linear polarizer is fixedly connected with the phase retarder through the bonding layer I.
By adopting the technical scheme, the applicant finds that the light emitted from the surface of the linear polarizer is linearly polarized light, the sunglasses worn by a user are polarized sunglasses, and when the absorption axis of the polarized sunglasses is parallel to the polarization direction of the emergent light of the display screen, the polarized sunglasses can absorb the light emitted from the display screen, so that the user cannot see the picture on the display screen. In this application, set up phase delay piece through the light emergent surface of tie coat I at linear polarizer, phase delay piece can be circular polarized light or the elliptical polarized light with the linear polarization light conversion of linear polarizer outgoing, and at this moment, polarized light sunglasses can't all absorb the emergent light of phase delay piece to the user that makes to wear polarized light sunglasses can see the picture above the display screen at any angle.
Further, the applicant has found that the light exiting surface of the phase retarder is smooth and has strong specular reflection, thereby generating glare under a bright light source and also reducing the display contrast of the display screen, so that a user can not clearly see the picture on the display screen. In the application, the haze coating is arranged on the light emergent surface of the phase retarder, and the haze of the haze coating is 1-50%, so that diffuse reflection is formed at the haze coating by a bright light source, the specular reflection on the surface of the phase retarder is reduced, the display contrast is increased, and a user can clearly see pictures on the display screen. The haze of the haze coating is 1-50%, so that not only can a good diffuse reflection effect be achieved, but also the reduction of the diffuse reflection effect due to the excessively low haze of the haze coating is avoided, the whitening of a display picture due to the excessively high haze of the haze coating is also avoided, and a user wearing polarized sunglasses can clearly see the picture on the display screen through the mutual matching of the polarizing sheet, the phase retarder and the haze coating, and meanwhile, the reflection glare of a bright light source is reduced.
Meanwhile, in the phase delay polaroid, the ratio of the maximum brightness to the minimum brightness is less than 3 in the range that the included angle between the absorption axis of the polarized sunglasses and the absorption axis of the linear polaroid is 0-180 degrees, so that a user who waits to wear the polarized sunglasses can not feel dim and dim at any angle, the user experience degree and the satisfaction degree of the phase delay polaroid are improved, and the market demand is met.
Optionally, an included angle between the retardation axis of the phase retarder and the absorption axis of the linear polarizer is 40-50 degrees.
By adopting the technical scheme, the included angle between the delay axis of the phase delay piece and the absorption axis of the linear polarizer is 40-50 degrees, so that linearly polarized light emitted by the linear polarizer can be converted into circularly polarized light or elliptically polarized light, and a user wearing polarized sunglasses can see pictures on the display screen.
And an included angle between the retardation axis of the phase retardation plate and the absorption axis of the linear polarizer is 45 degrees, the retardation amount of the phase retardation plate is 137.5nm under the wavelength of 550nm, linearly polarized light emitted by the linear polarizer can be converted into circularly polarized light, and the using effect of the phase retardation polarizer is improved.
Optionally, the haze coating is an organic coating with particles having a different refractive index than the organic coating.
By adopting the technical scheme, the processing of the haze coating is facilitated.
Further, the organic coating is one of an acrylate coating and an acetate coating. The acrylate coating and the acetate coating are easy and convenient to process, the bonding strength of the particles and the organic coating can be increased, the bonding strength of the haze coating and the phase retarder can be increased, and the use stability of the phase retardation polarizer can be improved.
Optionally, the particles are one or more of organic particles and inorganic particles;
the D80 particle size of the inorganic particles is 1-80nm, and the D80 particle size of the organic particles is 0.1-10 μm.
By adopting the technical scheme, the particle size of the particles is optimized, the haze is convenient to select, and the film forming uniformity and strength of the haze coating are improved.
Optionally, the organic particles are one or more of polystyrene particles, polymethyl methacrylate particles, polycarbonate particles, polyethylene particles, melamine resin particles, acrylic acid-styrene copolymer particles, and acrylonitrile-butadiene-styrene copolymer particles;
the inorganic particles are one or more of silicon dioxide particles, titanium dioxide particles, tin oxide particles, zinc oxide particles and zirconium oxide particles.
By adopting the technical scheme, the inorganic particles have a better refraction effect on light, but the inorganic particles and the organic coating have weaker interface bonding force; the organic particles and the organic coating have good interfacial bonding force, but the organic particles have poor refraction effect on light. By optimizing the organic particles and the inorganic particles, the selection can be carried out according to the haze of the haze coating, and the practicability of the phase delay polaroid is improved.
Optionally, the haze coating is prepared from the following raw materials in parts by weight: 30-40 parts of organic solvent, 0.1-0.3 part of auxiliary agent, 0.5-5 parts of particles and 50-70 parts of UV curing agent;
the particles are a mixture of polystyrene particles and polymethyl methacrylate particles, and the weight ratio of the polystyrene particles to the polymethyl methacrylate particles is 1: 1.
By adopting the technical scheme, the organic solvent, the auxiliary agent and the UV curing agent are subjected to ultraviolet light curing to form the organic coating, the particles are uniformly distributed in the organic coating, and the particles and the organic coating form the haze coating. The particles adopt polystyrene particles and polymethyl methacrylate particles, and the synergistic effect between the polystyrene particles and the polymethyl methacrylate particles is utilized to improve the haze of the organic coating and improve the practicability of the phase retardation polaroid.
Optionally, the bonding layer i is one of PVA glue, PSA glue, OCA glue, and UV curing glue.
Through adopting above-mentioned technical scheme, anchor coat I can glue for PVA, PSA glues, OCA glues, UV solidifies and glues one of gluing, can realize the fixed connection of phase delay piece and linear polarization piece, but also can select as required, improves the practicality of phase delay polaroid.
Optionally, the linear polarizer includes a polarizer body, an inner protection layer disposed on the light incident surface of the polarizer body, and a bonding layer disposed on the inner protection layer and away from the polarizer body, wherein the inner protection layer is fixedly connected to the polarizer body through a bonding layer ii.
Through adopting above-mentioned technical scheme, the internal protection layer sets firmly at this light outgoing surface of polaroid through anchor coat II to play the guard action to the polaroid body, but also can increase the mechanical strength of polaroid body. And an adhesive layer is arranged on the inner protective layer, so that the linear polaroid can be conveniently adhered to the display screen.
Furthermore, a release layer is arranged on the surface, far away from the inner protection layer, of the bonding layer. The release layer protects the adhesive layer, and when the adhesive layer is not used, the use effect of the adhesive layer is prevented from being influenced by dust attached to the surface of the adhesive layer.
In a second aspect, the present application provides a processing process of the above phase retardation polarizer, which adopts the following technical scheme: a processing technology of the phase retardation polarizer comprises the following steps:
coating a haze coating on the light emergent surface of the phase retarder, and curing the haze coating to form a haze coating;
and arranging a bonding layer raw material on the light emergent surface of the linear polarizer, then arranging one surface of the phase retarder far away from the haze coating on the surface of the bonding layer raw material, and curing the bonding layer raw material to form a bonding layer I and realize the bonding of the linear polarizer and the phase retarder so as to obtain the phase retardation polarizer.
Through adopting above-mentioned technical scheme, not only have processing portably, stable advantage, set up the haze coating on the surface of phase delay piece at first moreover, then utilize tie coat I to bond phase delay piece and linear polaroid together, utilize mutually supporting between phase delay piece, tie coat I, the linear polaroid, improve the result of use of phase delay polaroid.
In a third aspect, the present application provides an optical display device, which adopts the following technical solutions:
an optical display device comprises the phase retardation polarizer.
By adopting the technical scheme, the phase delay polaroid is convenient to use.
In summary, the present application has the following beneficial effects:
1. the phase delay polaroid sets up the phase delay piece on the light emergent surface of the linear polarization piece, sets up the haze coating on the light emergent surface of the phase delay piece, and utilizes the mutual cooperation between linear polarization piece, phase delay piece, the haze coating, not only enables the user who wears polarisation sunglasses to see the picture above the display screen, but also can alleviate the reflection glare of bright light source, increases the demonstration contrast of display screen, improves the practicality of phase delay polaroid.
2. The phase retarder has the retardation of 95-220nm at the wavelength of 550nm, the haze of the haze coating is 1-50%, the retardation of the phase retarder and the haze of the haze coating are optimized, and the using effect and the practicability of the phase retardation polarizer are improved. Furthermore, an included angle between the retardation axis of the phase retardation plate and the absorption axis of the linear polarizer is 45 degrees, the retardation amount of the phase retardation plate is 137.5nm under the wavelength of 550nm, linearly polarized light emitted by the linear polarizer can be converted into circularly polarized light, and the using effect of the phase retardation polarizer is further improved.
3. The processing technology of the phase delay polaroid utilizes the mutual matching of the phase delay sheet, the combining layer I and the linear polaroid, not only has the advantages of simplicity and convenience in processing and stability, but also improves the using effect of the phase delay polaroid. The optical display device comprises the phase delay polaroid, and is convenient to use.
Drawings
Fig. 1 is a schematic view of a phase retardation polarizer according to the present application.
Description of reference numerals: 1. a linear polarizer; 11. a polarizer body; 12. an inner protective layer; 13. an adhesive layer; 14. a release layer; 21. a bonding layer I; 21. a bonding layer II; 3. a phase retarder; 31. a haze coating.
Detailed Description
The present application is described in further detail below with reference to fig. 1.
The applicant finds that when the display screen is used outdoors, because the linear polarizer is adhered to the flat display screen, the light emitted by the display screen on the surface of the linear polarizer is linearly polarized light. And if the absorption axis of the polarized sunglasses is orthogonal to the absorption axis of the linear polarizer on the surface of the display screen, for example, the absorption axis of the polarized sunglasses is along the horizontal direction, and the absorption axis of the linear polarizer is along the vertical direction, that is, the light emitting direction of the linear polarizer is also along the horizontal direction, at this time, the light emitted from the linear polarizer by the display screen is absorbed by the polarized sunglasses, so that the user wearing the polarized sunglasses cannot see the picture on the display screen. At the same time, the applicant has further found that, under a bright light source, the bright light source often reflects bright glare on the display screen, and also affects the display contrast of the display screen. Based on this finding, the applicant has conducted a great deal of research and solved the technical problems set forth in the present application.
Phase delay polarizer
And the phase delay polaroid is applied to the surface of the display screen of the flat panel. Referring to fig. 1, the phase retardation polarizer comprises a linear polarizer 1, wherein a bonding layer i 21 is fixedly arranged on the light emergent surface of the linear polarizer 1, and a phase retardation plate 3 is arranged on the surface of the bonding layer i 21 away from the linear polarizer 1. Binding layer I21 is PVA glue, and binding layer I21 also can set up to PSA glue, OCA glue, UV curing glue etc. as required, and phase delay piece 3 and linear polarizer 1 realize both's fixed connection through binding layer I21.
The included angle between the retardation axis of the retardation plate 3 and the absorption axis of the linear polarizer 1 is 45 degrees, the retardation of the retardation plate 3 is 137.5mm at a wavelength of 550nm, the included angle between the retardation axis of the retardation plate 3 and the absorption axis of the linear polarizer 1 can be set to 40 degrees, 42.5 degrees, 47.5 degrees and 50 degrees as required, and the retardation of the retardation plate 3 can be set to 95nm, 110nm, 135nm, 140nm, 200nm, 220nm and the like as required. When the retardation of the retardation film 3 is 137.5nm at a wavelength of 550nm, the retardation film 3 can convert linearly polarized light emitted from the linear polarizer 1 into circularly polarized light. When the retardation of the phase retarder 3 is one of 95nm, 110nm, 135nm, 140nm, 200nm, 220nm, etc., the phase retarder 3 can convert the linearly polarized light emitted from the linear polarizer 1 into elliptically polarized light, and at this time, the light emitted from the phase retarder 3 on the display screen is not completely absorbed by the polarized sunglasses, so that a user wearing the polarized sunglasses can see the picture on the display screen at any angle.
Referring to fig. 1, the linear polarizer 1 includes a polarizer body 11, and the polarizer body 11 is a polyvinyl alcohol film. The light incident surface of the polarizer body 11 is provided with an inner protection layer 12, and the inner protection layer 12 is a cellulose triacetate film. A bonding layer II 22 is arranged between the inner protective layer 12 and the polarizer body 11, and the bonding layer II 22 and the bonding layer I21 are made of the same raw materials. The surface of the inner protection layer 12 far away from the polarizer body 11 is fixedly provided with a bonding layer 13, the bonding layer 13 is used for adhering the linear polarizer 1 to a display screen, the bonding layer 13 is made of PSA (pressure sensitive adhesive), and the bonding layer can be also set to be PVA (polyvinyl alcohol) adhesive, OCA (optically clear adhesive), UV (ultraviolet) curing adhesive and the like as required. The surface of the adhesive layer 14 away from the polarizer body 11 is provided with a release layer 14, the release layer 14 is used for protecting the adhesive layer 13, and the release layer 14 is a polyethylene terephthalate release film.
The applicant further finds that the surface of the phase retardation plate 3 is relatively smooth, and the display screen generates strong specular reflection on the surface of the phase retardation plate 3, so that glare is easily generated, and the picture on the display screen is not clear.
Referring to fig. 1, a haze coating 31 is fixedly disposed on a surface of the phase retarder 3 away from the linear polarizer 1, and the haze coating 31 is an organic coating with particles, the particles are uniformly distributed in the organic coating, and the particles have a refractive index different from that of the organic coating. The thickness of the haze coating 31 was 5 μm, and the haze of the haze coating 31 was 9.53%. The thickness of the haze coating 31 may be set to 1 μm, 3 μm, 8 μm, 10 μm, etc., as needed, and the haze of the haze coating 31 may be set to 1%, 3%, 13%, 25%, 42%, 50%, etc., as needed.
The organic coating is an acetate coating, and the organic coating can also be arranged as an acrylate coating according to the requirement. The fine particles were organic fine particles, the organic fine particles were a mixture of polystyrene fine particles and polymethyl methacrylate fine particles, the D80 particle size of the polystyrene fine particles was 3.5 μm, and the D80 particle size of the polymethyl methacrylate fine particles was 1.8 μm. The fine particles may be provided as inorganic fine particles or a mixture of organic fine particles and inorganic fine particles as necessary. The organic fine particles may be polycarbonate fine particles, polyethylene fine particles, melamine resin fine particles, acrylic-styrene copolymer fine particles, or acrylonitrile-butadiene-styrene copolymer fine particles, as required; the inorganic fine particles may be silica fine particles, titania fine particles, tin oxide fine particles, zinc oxide fine particles, or zirconia fine particles, as required. The D80 particle size of the organic fine particles may be set to 0.1 μm, 5 μm, 10 μm, or the like, as necessary; the D80 particle size of the inorganic fine particles may be set to 1nm, 10nm, 30nm, 40nm, 80nm, or the like, as necessary.
Because the refractive index of particle and organic coating is different, the display screen is when the light that phase delay piece 3 emergent passes through organic coating, and light forms diffuse reflection's effect under the effect of particle, reduces the specular reflection on organic coating surface, promotes the display contrast of display screen in atomizing coating surface to can make the more clear picture of seeing on the display screen of user.
Preparation example
The haze coating is prepared from the following raw materials in parts by weight: 38.85 parts of organic solvent, 60 parts of UV curing agent, 0.15 part of auxiliary agent and 1 part of microparticle.
Wherein the organic solvent is selected from butyl acetate; the UV curing agent is selected from UV-3621; the auxiliary agent is selected from a leveling agent YCK 1310; the fine particles are polystyrene fine particles and polymethyl methacrylate fine particles, the weight ratio of the polystyrene fine particles to the polymethyl methacrylate fine particles is 1:1, the D80 particle size of the polystyrene fine particles is 3.5 mu m, and the D80 particle size of the polymethyl methacrylate fine particles is 1.8 mu m. The polystyrene particles are selected from Dongguan Hongyao plastication science and technology limited company; the polymethyl methacrylate particles are selected from Kai Pigeon plastification Co., Yao City.
A preparation method of a haze coating comprises the following steps:
adding a UV curing agent and an auxiliary agent into an organic solvent, stirring and uniformly mixing, then adding particles, and continuously stirring and uniformly mixing to obtain the haze coating.
Examples
Example 1
A processing technology of a phase retardation polarizer comprises the following steps:
s1, coating a haze coating on the light emergent surface of the phase retarder 3, wherein the haze coating is obtained by adopting a preparation example, the phase retarder 3 is imperial RM-147, the haze coating is cured to form a haze coating 31, the thickness of the haze coating 31 is 5 μm, the phase retarder 3 with the haze coating 31 is obtained, and the haze of the haze coating 31 is 9.53%.
S2, coating bonding layer raw materials on two sides of the polarizer body 11, wherein the polarizer body 11 is a polyvinyl alcohol film, the bonding layer raw materials are PVA glue, and the PVA glue is selected from Mitsubishi chemical plant type. Then, an inner protective layer 12 is provided on the light incident side of the polarizer body 11 and on the bonding layer raw material, and at the same time, a phase retarder 3 is provided on the light emitting side of the polarizer body 11 and on the bonding layer raw material. The inner protective layer 12 is a cellulose triacetate film, the retarder 3 is the retarder 3 with the haze coating 31 obtained in step S1, and the retarder 3 is located between the polarizer body 11 and the haze coating 31. The PVA glue is solidified to form a bonding layer I21 and a bonding layer II 22, and the polarizer body 11, the inner protection layer 12 and the phase retarder 3 are fixedly connected.
And S3, adhering an adhesive raw material to the surface, away from the polarizer body 11, of the inner protection layer 12, wherein the adhesive raw material is PSA (pressure sensitive adhesive) glue selected from the company Limited, Sounda Mount high and New materials, and the PSA glue forms the adhesive layer 13. Then, a release layer 14 is adhered to the surface of the adhesive layer 13, and the release layer 14 is a polyethylene terephthalate release film, thereby obtaining the phase retardation polarizer.
Example 2
The present embodiment is different from embodiment 1 in that the phase retarder 3 is konica minolta KC2 UGR.
Application example
An optical display device comprises the phase retardation polarizer.
Comparative example
Comparative example 1
The present comparative example is different from example 1 in that the light incident surface of the polarizer body 11 is not provided with the phase retarder 3 and the haze coating 31.
Performance detection
Polarized sunglasses were disposed on the light-exiting sides of the phase retardation polarizers obtained in examples 1 to 2 and comparative example 1, respectively, at a distance of 2cm from the phase retardation polarizer, and then the light-exiting surfaces of the polarized sunglasses were examined, and the examination results are shown in tables 1 and 2.
The rotation angle theta is an included angle between the absorption axis of the polarized sunglasses and the absorption axis of the linear polarizer;
the normalized brightness is obtained by calculating the brightness by taking the backlight brightness of 10000 Cd/square meter as the reference;
ratio maximum luminance/minimum luminance
TABLE 1 phase delay Polaroid Brightness test result (Cd/Square Meter)
TABLE 2 normalized luminance test results for phase delay polarizers (Cd/square meter)
It can be seen from table 2 that, the phase retardation polarizer of the present application enables a user wearing polarized sunglasses to see a picture on a display screen at any angle within a range of 0-180 degrees of an included angle between an absorption axis of the polarized sunglasses and an absorption axis of a linear polarizer, and a ratio of maximum brightness to minimum brightness is less than 3.
Comparing the example 1 with the comparative example 1, wherein the maximum brightness of the example 1 is 1843.03 Cd/square meter, the corner is 90 degrees at the moment, the minimum brightness of the example 1 is 1568.73 Cd/square meter, the corner is 0 degree at the moment, and the ratio of the maximum brightness to the minimum brightness is 1.17; the maximum brightness of the comparative example 1 is 3532.6 Cd/square meter, the corner is 0 degree at this time, the minimum brightness of the comparative example 1 is 0.19 Cd/square meter, the corner is 90 degrees at this time, and the ratio of the maximum brightness to the minimum brightness is 18976.29. Therefore, the phase delay polaroid has good brightness at any angle within the range of 0-180 degrees of the included angle between the absorption axis of the polarized sunglasses and the absorption axis of the linear polaroid, and a user wearing the polarized sunglasses can clearly see the picture on the display screen.
Comparing example 1 with example 2, in example 1, the phase retarder is imperial RM-147, the corner of the maximum brightness is 90 degrees, and the corner of the minimum brightness is 0 degrees; the phase retarder in example 2 was Konika-minolta KC2UGR, and the rotation angle of the maximum luminance was 0 degree, and the rotation angle of the minimum luminance in example 2 was 90 degrees. Therefore, the maximum brightness and the minimum brightness of the polarized sunglasses and the linear polarizer with the included angle of 0-180 degrees are related to the phase retarder, but the effect that a user wearing the polarized sunglasses can see pictures on a display screen at any angle by the phase retarder is not influenced.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (10)
1. A phase retardation polarizer, comprising: the linear polarizer comprises a linear polarizer (1), a phase retarder (3) arranged on the light emergent surface of the linear polarizer (1), and a haze coating (31) arranged on the surface of the phase retarder (3) far away from the linear polarizer (1);
the haze of the haze coating (31) is 1-50%;
the phase retarder (3) has a retardation of 95-220nm at a wavelength of 550 nm;
the linear polarizer (1) is fixedly connected with the phase retarder (3) through a bonding layer I (21).
2. A phase retardation polarizer according to claim 1, wherein: the included angle between the delay axis of the phase retarder (3) and the absorption axis of the linear polarizer (1) is 40-50 degrees.
3. A phase retardation polarizer according to claim 1, wherein: the haze coating (31) is an organic coating with particles having a different refractive index than the organic coating.
4. A phase retardation polarizer according to claim 3, wherein: the particles are one or more of organic particles and inorganic particles;
the D80 particle size of the inorganic particles is 1-80nm, and the D80 particle size of the organic particles is 0.1-10 μm.
5. A phase retardation polarizer according to claim 4, wherein: the organic particles are one or more of polystyrene particles, polymethyl methacrylate particles, polycarbonate particles, polyethylene particles, melamine resin particles, acrylic acid-styrene copolymer particles and acrylonitrile-butadiene-styrene copolymer particles;
the inorganic particles are one or more of silicon dioxide particles, titanium dioxide particles, tin oxide particles, zinc oxide particles and zirconium oxide particles.
6. A phase retardation polarizer according to claim 1, wherein: the haze coating (31) is prepared from the following raw materials in parts by weight: 30-40 parts of organic solvent, 0.1-0.3 part of auxiliary agent, 0.5-5 parts of particles and 50-70 parts of UV curing agent;
the particles are a mixture of polystyrene particles and polymethyl methacrylate particles, and the weight ratio of the polystyrene particles to the polymethyl methacrylate particles is 1: 1.
7. A phase retardation polarizer according to claim 1, wherein: the bonding layer I (21) is one of PVA glue, PSA glue, OCA glue and UV curing glue.
8. A phase retardation polarizer according to claim 1, wherein: the linear polarizer (1) comprises a polarizer body (11), an inner protection layer (12) arranged on the light incidence surface of the polarizer body (11), and an adhesive layer (13) arranged on the inner protection layer (12) and far away from the polarizer body (11), wherein the inner protection layer (12) is fixedly connected with the polarizer body (11) through a bonding layer II (22).
9. A process for manufacturing a phase retardation polarizer according to any of claims 1 to 8, wherein: the method comprises the following steps:
coating a haze coating on the light emergent surface of the phase retarder (3), and curing the haze coating to form a haze coating (31);
and arranging a bonding layer raw material on the light emergent surface of the linear polarizer (1), then arranging one surface, away from the haze coating (31), of the phase retarder (3) on the surface of the bonding layer raw material, curing the bonding layer raw material to form a bonding layer I (21), and realizing the bonding of the linear polarizer (1) and the phase retarder (3), thereby obtaining the phase retardation polarizer.
10. An optical display device, characterized in that: comprising the phase retardation polarizer of any of claims 1 to 8.
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