CN102262259A - Thin integrated three-dimensional (3D) display polarizer and manufacturing method thereof - Google Patents
Thin integrated three-dimensional (3D) display polarizer and manufacturing method thereof Download PDFInfo
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- CN102262259A CN102262259A CN2011102341312A CN201110234131A CN102262259A CN 102262259 A CN102262259 A CN 102262259A CN 2011102341312 A CN2011102341312 A CN 2011102341312A CN 201110234131 A CN201110234131 A CN 201110234131A CN 102262259 A CN102262259 A CN 102262259A
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Abstract
The invention discloses a thin integrated three-dimensional (3D) display polarizer and a manufacturing method thereof. The thin integrated 3D display polarizer comprises a release film layer, an inner protective film layer, a polyvinyl alcohol film layer, a microretarder layer and an outer protective film layer which are sequentially adhered together, wherein slow shafts of the even number rows of a microretarder form an angle of 0 to 50 degrees or 130 to 180 degrees with a transmissive optical axis of the polyvinyl alcohol film layer; slow shafts of the odd number rows of the microretarder form an angle of 130 to 180 degrees or 0 to 50 degrees with the transmissive optical axis of the polyvinyl alcohol film layer; and the microretarder is subjected to anti glare (AG) or anti reflective/low reflective (AR/LR) or anti-scratch hard coating (HC). The polarizer can convert linearly polarized light emitted by a liquid crystal display panel into left circularly polarized light and right circularly polarized light which are independent and mutually crossed so as to form a left image and a right image. An audience can see a 3D display image which has a pure color and does not have flicker only by wearing a pair of simple and cheap circularly polarizing glasses; and the polarizer provided by the invention is thin and has high optical transmissivity.
Description
Technical field
The present invention relates to the polaroid that a kind of TFT type LCD is used, more precisely, relate to a kind of thinner thickness, the higher a kind of 3D stereo display polaroid of transmittance.The invention still further relates to the preparation method of described polaroid.
Background technology
Polaroid in the market, can only produce a kind of polarization characteristic, can't directly make general TFT LCD present the stereo display effect, Chinese patent application number is 201110021048.7 to disclose a kind of 3D polaroid, comprise the stripping film that fits together in turn, former polaroid and stereo display film, its stereo display film mainly is a micro-bit phase difference film, and the thickness of this polaroid is thicker, and optical transmittance is lower.Its disclosed preparation method comprises 3 steps.Step 1: the former polaroid that is bonded with two-layer stripping film of rolling is installed on first uncoil-stand in relatively turnable mode, and the stereo display film of rolling is installed on second uncoil-stand in relatively turnable mode.Step 2: the strip off The initial segment be bonded in stripping film on the former polaroid outside surface, and the The initial segment of the stripping film of strip off is connected in the rotating shaft of first wrap-up, again the The initial segment of stereo display film is fitted in by the bonding agent on the former polaroid outside surface on the position of strip off stripping film of former polaroid, form 3D stereo display polaroid, and the 3D stereo display polaroid that makes inside and outside surface be fitted with stripping film and stereo display film respectively is connected in the rotating shaft of second wrap-up through at least one pair of doubling roller.
The production efficiency of this technology is lower, and the thickness of the said goods is thicker, the cost height, and optical transmittance is lower.
Summary of the invention
The present invention provides a kind of slim integrated 3D stereo display polaroid in order to solve problems of the prior art, and under the situation that does not influence use, its thinner thickness, and optical transmittance height can produce better 3D effect; The present invention also provides the preparation method of this polaroid, has reduced production cost effectively, has improved production efficiency.
Technical scheme of the present invention is: a kind of slim incorporate 3D stereo display polaroid; comprise the rete of peeling off that is bonded together in turn; the inner protection film layer; the polyvinyl alcohol (PVA) rete; the micro-bit phase difference rete; outer protective film; described micro-bit phase difference film; the water-soluble serial tackifier of compound employing between inner protection film and the polyvinyl alcohol film; the transmission optical axis of the slow axis of described micro-bit phase difference film even number line and polyvinyl alcohol (PVA) rete is 0 °～50 ° or 130 °～180 °; the transmission optical axis of the slow axis of described micro-bit phase difference film odd-numbered line and polyvinyl alcohol (PVA) rete is 130 °～180 ° or 0 °～50 ° arrangements, and described micro-bit phase difference film is through anti-dazzle AG or antireflection AR/LR or anti-scratch HC processing.
Preferably: the AG value of the micro-bit phase difference film that described anti-dazzle is handled is 3%～50% or the HC value 〉=2H of the micro-bit phase difference film of AR/LR value≤1.0% of the micro-bit phase difference film handled of described antireflection or the processing of described anti-scratch.
Micro-bit phase difference film (FPR) is carried out anti-dazzle processing, antireflection processing or adds the HC coating.Wherein the method for anti-dazzle processing is: carry out blasting treatment at face and form uneven surface, perhaps at face coating one deck resene bonding agent, be dispersed with inorganic or organic transparent particulate in this bonding agent.It mainly is to utilize interference of light principle that antireflection is handled, and can be hard conating and low-index layer that is made of metal oxide etc. at the film surface lamination or the antireflection film that has formed low-index layers such as mineral compound or organic fluoride with individual layer.The method of HC coating is: be coated with organosilicon etc. at face, material surface hardness and anti-wear performance are strengthened.
Preferably: described micro-bit phase difference film is a kind of in cyclo-olefin-polymer films, polycarbonate membrane, the three cellulose acetate membrane.
Preferably: phase difference value is 80nm～150nm in the face of described micro-bit phase difference film, is 1/4 λ wave plate.
Preferably: described micro-bit phase difference film adopts cyclo-olefin-polymer films, and its thickness is 30 μ m～200 μ m.
Preferably: described inner protection film is selected from a kind of in three cellulose acetate membrane, cyclo-olefin-polymer films, polynorbornene film, polycarbonate membrane, polystyrene film, the acrylic film.
Preferably: the transmitance of described polaroid 〉=42%, crossfire value≤1.0%.
The invention provides a kind of preparation method of above-mentioned slim integrated 3D stereo display polaroid, may further comprise the steps:
Step 1: polyvinyl alcohol film, micro-bit phase difference film, the inner protection film of package are installed in respectively on first, second, third uncoil-stand, and adjust the slow-axis direction of micro-bit phase difference film.
Step 2: polyvinyl alcohol film unreels, and is compound with inner protection film, micro-bit phase difference film after processes such as dyeing, stretching, complementary color, drying, rolling behind the composite drying.
Step 3: with the compound upper protective film of a side of above-mentioned semi-manufacture micro-bit phase difference film, stripping film is made last finished product on inner protection film one side is compound.
Undertaken by the precision positioning make-up machine that is provided with accurate devices such as edge ultrasonic detector, pyroscan, center deviation correcting device, edge deviation correcting device, tension controller and ccd video camera in the whole compound process, to guarantee the accuracy of applying angle.
Beneficial effect of the present invention is: slim integrated 3D stereo display polaroid of the present invention will convert two groups of independently left and right rotatory polarizations to by the line polarisation that the TFT LCD penetrates; people can see 3D rendering by wearing light and low-cost rotatory polarization glasses; the micro-bit phase difference film of polaroid of the present invention has also replaced the inner protection film of PVA film one side in traditional polaroid simultaneously; phase difference compensation function and defencive function is integrated; and product thickness approaches (thickness reduces by 80～150 μ m), cost is lower, production efficiency is higher, and transmitance is higher.
Description of drawings
Fig. 1 is the structural representation of the slim integrated 3D stereo display polaroid of the present invention.
Fig. 2 is polyvinyl alcohol film of the present invention and inner protection film, the compound synoptic diagram of micro-bit phase difference film.
Fig. 3 is micro-bit phase difference film functional schematic among the present invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described further.
As shown in Figure 1, slim integrated 3D stereo display polaroid of the present invention comprises stripping film 1, inner protection film 2, polyvinyl alcohol film 3 (PVA), micro-bit phase difference film 4 (FPR), the outer diaphragm 5 that fits together in turn; Wherein, (light velocity of propagation direction faster is fast axle to the slow axis of the even number line of micro-bit phase difference film 4, and perpendicular direction is slow axis.) being 0 °～50 ° or 130 °～180 ° with the transmission optical axis of polyvinyl alcohol film 3, the transmission optical axis of the slow axis of the odd-numbered line of described micro-bit phase difference film 4 and polyvinyl alcohol film 3 is 130 °～180 ° or 0 °～50 °.
As shown in Figure 3, micro-bit phase difference film the line polarisation of outgoing can be converted to two groups independently, cross one another left and right sides rotatory polarization, this left and right sides rotatory polarization enters by the rotatory polarization glasses and forms left and right sides image behind the human eye, through the synthetic 3D stereo-picture of brain.
Micro-bit phase difference film (FPR) is handled through surface coating, has anti-dazzle AG (Anti Glare) or antireflection AR/LR (Anti Reflective/Low Reflective) or anti-scratch HC (Hard Coating) function.Be preferably anti-dazzle AG layer among the present invention, wherein, anti-dazzle AG value is preferably 3%～50%.
Dichroic substance such as this polyvinyl alcohol film 3 (PVA film) absorption iodine, dichroic dye, then so that crosslinked, stretch and dry.Polyvinyl alcohol film adopts water to clean, and so not only can remove the dirt on striping surface and wash detackifier off, can also make the polyvinyl alcohol film expansion, to prevent as the phenomenon such as inhomogeneous that dyes.After polyvinyl alcohol film 3 stretchings, dyeing, the drying directly in its both sides compound respectively on inner protection film 2 and micro-bit phase difference film 4 (FPR).Inner protection film need possess the transparency; physical strength; thermal stability; moisture barrier; excellent specific properties such as isotropy; cellulosic resins such as preferred Triafol T; the polynorbornene class; polycarbonate-based; cyclic olefin polymer; polystyrene type or acrylic compounds etc.; more preferably carried out the three cellulose acetate membrane (TAC film) after saponification is handled; or the cyclo-olefin-polymer films after the corona treatment (COP film); inner protection film and micro-bit phase difference film (FPR) are preferably by polyvinyl alcohol glue and fit by fitting with water soluble glue and polyvinyl alcohol film (PVA).In addition, according to the needs of using, the inner protection film that can also select to have phase compensation function or anti-uv absorption function.Wherein, phase compensation function can realize by film stretching and coating of liquid crystalline.After film is stretched, owing to its birefraction character has certain phase compensation function.Micro-bit phase difference film among the present invention is selected to realize its phase compensation function by coating of liquid crystalline compound on transparency carrier.The realization of film anti-ultraviolet function is mainly by adding ultraviolet light absorber in the system film.
Phase difference value Re is preferably 80nm～150nm in the face of described micro-bit phase difference film 4, (phase-delay quantity of generation is the wave plate of (2m+1) pi/2 to preferred especially quarter wave plate, m=0,1,2,3 ...), Re=125nm, wherein, Re is the interior phase differential of the pellicular front in the visible-range, Re=(nx-ny) * d, nx and ny represent the refractive index of the film of slow-axis direction and quick shaft direction respectively, d represents the thickness of film.
The transparency carrier of described micro-bit phase difference film 4 (FPR) can be polycarbonate membrane (PC), cyclic olefin polymer (COP) film or three cellulose acetate membrane optical thin films such as (TAC).In the present invention, because the selection of micro-bit phase difference film (FPR) need possess optical clarity preferably, lower reflectivity, under the preferable physical strength, wet heat condition than stiff stability, moisture barrier etc., therefore, in the present embodiment, be preferably cyclic olefin polymer (COP) film, thickness is 30 μ m～200 μ m.
Described inner protection film 2 can use existing known bonding agent, bonding agent usually with the applying of stripping film 1; as: transparent adhesives such as acrylic polymers, silicone based polymkeric substance, polyester, polyurethane, polyethers; wherein, preferably adopt acrylic adhesives from aspects such as optical transparence, adhesion characteristic, weatherabilities.
As shown in Figure 2; the applying method of described polyvinyl alcohol film (PVA) and inner protection film, micro-bit phase difference film (FPR) can for: at first; polyvinyl alcohol film 3 (PVA), micro-bit phase difference film 4 (FPR), inner protection film 2 with package is installed in respectively on first uncoil-stand 6, second uncoil-stand 7, the 3rd uncoil-stand 8 earlier, and adjusts the slow-axis direction of (by the direction of polaroid absorption axes and the direction adjustment of micro-bit phase difference film slow axis) good micro-bit phase difference film (FPR).Next, polyvinyl alcohol film (PVA) unreels, and after processes such as dyeing, stretching, complementary color, drying, (FPR) is compound with inner protection film, micro-bit phase difference film.Behind the composite drying on wrap-up 9 rolling be semi-manufacture.
At the compound upper protective film of semi-manufacture micro-bit phase difference film one side, the compound stripping film of going up of inner protection film one side is made last finished product at last.
Undertaken by the precision positioning make-up machine that is provided with accurate devices such as edge ultrasonic detector, pyroscan, center deviation correcting device, edge deviation correcting device, tension controller and ccd video camera in the whole compound process, to guarantee the accuracy of applying angle.
Evaluation method:
3D stereo display polaroid A of the present invention can use instrument CS-200 to carry out test analysis, as evaluation index, 3D stereo display polaroid of the present invention is preferably and makes its crosstalk value smaller or equal to 1.0% with the crossfire value (crosstalk) of 3D stereo display and optical transmittance (T).
Embodiment 1:
Starting material: the COP micro-bit phase difference film of diaphragm, surfaces A G coating, PVA film, interior protection TAC film, stripping film
Bonding agent: PVA glue, pressure sensitive adhesive.
With PVA glue COP micro-bit phase difference film and interior protection TAC film are compounded in the both sides of the PVA film after dyeing stretches, the opposite side of protection TAC film in pressure sensitive adhesive stripping film being compounded in is at last at the compound upper protective film of a side of micro-bit phase difference film.
Embodiment 2:
Starting material: the PC micro-bit phase difference film of diaphragm, surfaces A G coating, PVA film, interior protection TAC film, stripping film
Bonding agent: PVA glue, pressure sensitive adhesive
Concrete operations are with embodiment 1.
Embodiment 3:
Starting material: the TAC micro-bit phase difference film of diaphragm, surfaces A G coating, PVA film, interior protection TAC film, stripping film
Bonding agent: PVA glue, pressure sensitive adhesive
Concrete operations are with embodiment 1.
Embodiment 4:
Starting material: the COP micro-bit phase difference film of diaphragm, surfaces A G coating, PVA film, interior protection COP film, stripping film
Bonding agent: PVA glue, pressure sensitive adhesive
Concrete operations are with embodiment 1.
Embodiment 5:
Starting material: the PC micro-bit phase difference film of diaphragm, surfaces A G coating, PVA film, interior protection COP film, stripping film
Bonding agent: PVA glue, pressure sensitive adhesive
Concrete operations are with embodiment 1.
Embodiment 6:
Starting material: the TAC micro-bit phase difference film of diaphragm, surfaces A G coating, PVA film, interior protection COP film, stripping film
Bonding agent: PVA glue, pressure sensitive adhesive
Concrete operations are with embodiment 1.
Comparative example 7:(polaroid of the prior art)
Starting material: the COP micro-bit phase difference film of diaphragm, surfaces A G coating, PVA film, interior protection TAC film, stripping film
Bonding agent: PVA glue, pressure sensitive adhesive
Each compound last layer inner protection film (TAC) of both sides with the PVA film of PVA glue after dyeing stretches; then by pressure sensitive adhesive micro-bit phase difference film (COP) on the inner protection film of a side; compound stripping film on a relative side inner protection film, the last compound upper protective film of a side at micro-bit phase difference film.
The polaroid that each embodiment makes adopts spectrocolorimeter CS-200 test, the results are shown in following table:
| Embodiment | Transmitance T (%) | Crosstalk value (%) |
| |
43.73 | 0.52 |
| |
43.11 | 0.96 |
| |
43.34 | 0.75 |
| |
43.62 | 0.58 |
| |
43.23 | 0.92 |
| Embodiment 6 | 43.28 | 0.77 |
| Comparative example 7 | 42.67 | 1.22 |
Only being preferred embodiment of the present invention in sum, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should belong to technical protection category of the present invention.
Claims (10)
1. slim incorporate 3D stereo display polaroid; it is characterized in that: comprise the rete of peeling off that is bonded together in turn; the inner protection film layer; the polyvinyl alcohol (PVA) rete; the micro-bit phase difference rete; outer protective film; described micro-bit phase difference film; the water-soluble serial tackifier of compound employing between inner protection film and the polyvinyl alcohol film; the transmission optical axis of the slow axis of described micro-bit phase difference film even number line and polyvinyl alcohol (PVA) rete is 0 °～50 ° or 130 °～180 °, and the transmission optical axis of the slow axis of described micro-bit phase difference film odd-numbered line and polyvinyl alcohol (PVA) rete is 130 °～180 ° or 0 °～50 ° arrangements.
2. polaroid according to claim 1, it is characterized in that: described micro-bit phase difference film is handled through anti-dazzle AG, method is: the face of micro-bit phase difference film carries out blasting treatment and forms uneven surface, and the AG value of the micro-bit phase difference film that described anti-dazzle is handled is 3%～50%.
3. polaroid according to claim 1, it is characterized in that: described micro-bit phase difference film is handled through antireflection AR/LR, method is: the hard conating that is made of metal oxide at the film surface lamination of described micro-bit phase difference film and formed the antireflection film of the low-index layer of mineral compound or organic fluoride, AR/LR value≤1.0% of the micro-bit phase difference film that described antireflection is handled with individual layer.
4. polaroid according to claim 1 is characterized in that: described micro-bit phase difference film is handled through anti-scratch HC, and method is: at the face coating organosilicon of described micro-bit phase difference film, the HC value 〉=2H of the micro-bit phase difference film that described anti-scratch is handled.
5. according to each described polaroid of claim 1-4, it is characterized in that: described micro-bit phase difference film is a kind of in cyclo-olefin-polymer films, polycarbonate membrane, the three cellulose acetate membrane.
6. polaroid according to claim 5 is characterized in that: phase difference value is 80nm～150nm in the face of described micro-bit phase difference film, is 1/4 λ wave plate.
7. polaroid according to claim 5 is characterized in that: described micro-bit phase difference film adopts cyclo-olefin-polymer films, and its thickness is 30 μ m～200 μ m.
8. polaroid according to claim 1 is characterized in that: described inner protection film is selected from a kind of in three cellulose acetate membrane, cyclo-olefin-polymer films, polynorbornene film, polycarbonate membrane, polystyrene film, the acrylic film.
9. polaroid according to claim 1 is characterized in that: the light transmission rate of described polaroid 〉=42%, crossfire value≤1.0%.
10. the preparation method of a slim integrated 3D stereo display polaroid as claimed in claim 1 is characterized in that: may further comprise the steps:
Step 1: polyvinyl alcohol film, micro-bit phase difference film, the inner protection film of package are installed in respectively on first, second, third uncoil-stand, and adjust the slow-axis direction of micro-bit phase difference film.
Step 2: polyvinyl alcohol film unreels, and is compound with inner protection film, micro-bit phase difference film after processes such as dyeing, stretching, complementary color, drying, rolling behind the composite drying.
Step 3: with the compound upper protective film of a side of above-mentioned semi-manufacture micro-bit phase difference film, stripping film is made last finished product on inner protection film one side is compound.
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Cited By (5)
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| WO2013023359A1 (en) * | 2011-08-16 | 2013-02-21 | 深圳市盛波光电科技有限公司 | Film-type integrated 3d stereoscopic display polaroid and preparing method thereof |
| CN107538885A (en) * | 2017-09-25 | 2018-01-05 | 深圳市运宝莱光电科技有限公司 | A kind of laminating apparatus and its manufacture craft of slim compensation film polaroid |
| CN107561620A (en) * | 2017-10-12 | 2018-01-09 | 江西胜宝莱光电科技有限公司 | A kind of biaxial compensation film and its production method |
| CN108363218A (en) * | 2018-02-01 | 2018-08-03 | 中国人民解放军62023部队 | A kind of goggles and preparation method thereof |
| CN110703455A (en) * | 2011-11-28 | 2020-01-17 | 3M创新有限公司 | Polarizing beam splitter providing high resolution images and systems using such beam splitters |
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| CN108363218B (en) * | 2018-02-01 | 2020-03-27 | 军事科学院系统工程研究院军需工程技术研究所 | Goggles and preparation method thereof |
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Application publication date: 20111130 |