CN109725454A - A kind of polaroid shown suitable for noctovision environment and its manufacturing method - Google Patents
A kind of polaroid shown suitable for noctovision environment and its manufacturing method Download PDFInfo
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- CN109725454A CN109725454A CN201910164505.4A CN201910164505A CN109725454A CN 109725454 A CN109725454 A CN 109725454A CN 201910164505 A CN201910164505 A CN 201910164505A CN 109725454 A CN109725454 A CN 109725454A
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Abstract
The present invention provides a kind of polaroid shown suitable for noctovision environment and its manufacturing methods, by simple and easy synchro-draw, dyeing, the collaboration processing scheme being crosslinked come effective iodide ion controlled in polarisation sublayer, the vertical and parallel transmitance value of polaroid is adapted to consistent with photoreception degree of the human eye under dim light, and then contrast of the product in low light environment is promoted, a kind of polaroid shown suitable for noctovision environment is finally provided.The invention has the benefit that (1) is of the invention, preparation method is simple；(2) polaroid of the invention still continues to use conventional structure layer on the market, and versatility is high；(3) by test discovery, using polaroid prepared by the present invention, when normal optical performance is suitable, the optical property under noctovision environment is substantially better than control group.
Description
Technical field
The present invention relates to liquid crystal display panel polaroid production technical fields, and in particular to it is aobvious that one kind is suitable for noctovision environment
The polaroid and its manufacturing method shown, polaroid of the invention in noctovision environment and other non-bright light environments (brightness is low
In 3cd/m2) in all have excellent display effect.
Background technique
Iodine polarizing piece can be covered entirely because of the absorption spectrum with high-polarization, low manufacturing cost and its ion complex
The characteristics of visible region, to be applied in the liquid crystal display products such as TV, computer, mobile phone.With the height of electronic product
Speed develops, and occasion applied by liquid crystal display is also further abundant, such as singing-hall, bar, street restaurant.Therefore, to polaroid
Display in noctovision environment also has higher requirement.
In general, Display panel polaroid is by protective film, upper and lower TAC film, polarisation sublayer, solid, pressure sensitive adhesive, release film
It constitutes.Wherein, polarisation sublayer has the PVA film of dichroic substance as load, directly determines the optical property of entire polaroid.It adjusts
The preparation process of whole polarisation sublayer can effectively promote display effect of the polaroid in dark situation.
The preparation process of polarisation sublayer is broadly divided into two kinds of dry and wet, the factors such as overall cost and mass production,
Display panel polaroid is mainly obtained by wet method preparation process, is broadly divided into swelling, dyeing, stretching, crosslinking, complementary color and is done
Dry treatment process.
It is next to be mainly adjusted by the technological parameter optimized in each process for the method for improving of polaroid optical property in recent years
It realizes.Such as: Chinese patent Authorization Notice No.: CN104635289A, by optimization dyeing and stretch processing procedure technology, and
Apply when boric acid carries out crosslinking Treatment and be uniaxially stretched stress, has product while promoting weatherability superior optical
Energy.Chinese patent Authorization Notice No.: CN101718885B is dried the temperature and time of process by control and optimizes other
Technological parameter optimizes the optical property of polaroid.
As described above, the method for improving as polaroid optical property, the prior art have been presented for kinds of schemes；More than but
Scheme is all based on the optimising and adjustment means that the amendment optical property of the visibility in bright light environments carries out.However when bright in environment
Degree by it is bright dimmed when, the sensitivity (i.e. luminosity function) of light wave can gradually occur with the reduction of brightness in environment for human eye
" blue shift " can not effectively adjust display effect of the polaroid in dark situation so as to cause above method.
Summary of the invention
In view of the problems of the existing technology, the present invention provide a kind of polaroid shown suitable for noctovision environment and its
Manufacturing method obtains a kind of polaroid that can have excellent display effect in noctovision environment.
The working principle of the invention is:
It, will be inclined by synchro-draw, dyeing, the collaboration processing scheme being crosslinked come effective iodide ion controlled in polarisation sublayer
The vertical and parallel transmitance value of mating plate be adapted to it is consistent with photoreception degree of the human eye under dim light, and then promoted product weak
Contrast in luminous environment finally provides a kind of polaroid that can have excellent display effect in noctovision environment.
Produce to obtain human eye view of the optical parameter of polaroid in entire visible spectrum into dark situation by this method
See that the distribution of function is modified.Each optical parameter is then defined by following formula:
TC(λ)=TMD(λ)×TTD(λ)×100
CR=TP/TC
CR '=T 'P/T′C
In formula, TMD (λ) and TTD (λ) are respectively parallel and orthogonal for the linear polarization feeding sputtering light of λ nm with wavelength respectively
The light polarizing film transmissivity measured when relationship, TC (λ), TP (λ) be Niccol relationship vertical transmitance of the light polarizing film at λ nm, flat
Row transmitance.These numerical value are directly measured by the spectrophotometer (V7100) of Japan's light splitting system.TC, TP and TC ', TP ' respectively
It is light polarizing film by bright state transmitance vertical with the modified Niccol relationship of human eye luminosity function in dark-state environment, parallel transmission
Rate.CR and CR ' is then the polaroid monomer contrast for evaluating optical property.
V (λ) is the human eye luminosity function in bright environment, and near the 555nm in green-yellow light area, V ' (λ) is then peak value
Human eye luminosity function in dark situation, peak value is near 505nm.Obviously, human eye with brightness in environment reduction, to each
Corresponding " blue shift " phenomenon also has occurred in the sensitivity of optical band.
Therefore, the optical signature of polaroid of the invention is: TMD and TTD can be carried out to the direction of dark luminosity function
Synchronous " blue shift " such as Fig. 2 are completed in correction.It realizes that the monomer contrast in dark situation is promoted, that is, obtains one kind in noctovision
Has the polaroid of excellent display effect in environment.
Technical scheme is as follows:
A kind of its manufacturing method of the polaroid shown suitable for noctovision environment, the polaroid include from top to bottom according to
The protective film of secondary stacking, upper TAC film, solid, polarisation sublayer, solid, lower TAC film, pressure-sensitive adhesive layer and release film, feature
Be, the preparation method comprises the following steps: the first collaboration handles the → the second collaboration processing → third collaboration processing → the four
Collaboration processing → polarisation sublayer dry → upper TAC film, lower TAC film fitting → leading portion high-temperature process → back segment high-temperature process → protection
Film fitting and pressure-sensitive adhesives be bonded release film, wherein the first collaboration processing include membrane material is impregnated in 10~60 DEG C 0~
In the aqueous solution of 1% inorganic salts；Second collaboration processing includes that membrane material is impregnated in 15~55 DEG C, and mass concentration is 0.1~15%
Mixed liquor containing iodine in；Third collaboration processing and the 4th collaboration processing include that membrane material is impregnated in 30~70 DEG C, concentration 0.1
~15% mixed liquor containing iodine；Leading portion high-temperature process includes the progress step high temperature processing in 20~100 DEG C of baking oven；Back segment is high
Temperature processing includes that step high temperature processing is carried out in 30%~95% baking oven in 20~70 DEG C, humidity.
As a further improvement of the present invention, the first collaboration handles the aqueous solution of used 0~1% inorganic salts, described
Inorganic Salts be the transition metals such as boric acid anhydride inorganic salts and zinc chloride, zinc iodide or potassium iodide such as boric acid, borax halogen
At least one of plain compound.
As a further improvement of the present invention, the second collaboration handles the iodine that contains that used concentration is 0.1~15% and mixes
Liquid, comprising: at least one of iodine class inorganic salts such as iodine, potassium iodide, sodium iodide, zinc iodide, also added with boron such as boric acid, boraxs
The halogen compounds and glyoxal, penta 2 of the transition metals such as anhydride inorganic salts and zinc chloride, zinc iodide, cobalt chloride, chromium chloride
At least one of the polyols such as aldehyde, ethylene glycol, glycerol and more aldehydes organic matters.
As a further improvement of the present invention, it is 1 that third collaboration processing and the 4th collaboration, which handle used mass concentration,
~15% mixed liquor, comprising: at least one of iodine class inorganic salts such as iodine, potassium iodide, sodium iodide, zinc iodide are also added with
The halogen compounds of the transition metals such as the boric acid anhydride inorganic salts such as boric acid, borax and zinc chloride, zinc iodide, cobalt chloride, chromium chloride
And at least one of the polyols such as glyoxal, glutaraldehyde, ethylene glycol, glycerol and more aldehydes organic matters.
As a further improvement of the present invention, the first collaboration processing, the second collaboration processing, third collaboration processing and the 4th association
It include that tensile stress is applied with by roller with processing, the orientation process for being uniaxially stretched PVA film material；Stretch total times
Rate is 5~7 times.
As a further improvement of the present invention, the drying of polarisation sublayer includes carrying out gradient in 30~90 DEG C of baking oven to do
Dry, the unit width tension for making the moisture on film be volatilized and reducing the fold of membrane material, and control roller is 200~1600N/
m。
As a further improvement of the present invention, upper TAC film, the fitting of lower TAC film include being bonded in partially by glue solid
The two sides up and down of photon sphere, upper TAC film, lower TAC film, which pass through base extraction, makes 40 ° of contact angle <.
Based on above-mentioned manufacturing method, the present invention also provides a kind of polaroids shown suitable for noctovision environment, use
Preparation method as described above prepares, and polaroid includes the protective film stacked gradually from top to bottom, upper TAC film, water
Glue solid, polarisation sublayer, glue solid, lower TAC film, pressure-sensitive adhesive layer and release film.
Compared with prior art, the invention has the benefit that
(1) present invention is by synchro-draw, dyeing, the collaboration processing scheme being crosslinked come effective iodine controlled in polarisation sublayer
Ion, the vertical and parallel transmitance of polaroid is adapted to it is consistent with photoreception degree of the human eye under dim light, and then promoted
Contrast of the product in low light environment finally provides a kind of polarisation that can have excellent display effect in noctovision environment
Piece.
(2) polaroid of the invention still continues to use conventional structure layer on the market, and versatility is high.
(3) by test discovery, using polaroid prepared by the present invention, when normal optical performance is suitable, noctovision ring
Optical property under border is substantially better than control group.
Detailed description of the invention
Fig. 1 is a kind of polaroid structure figure of the invention.
Fig. 2 is human eye in luminosity function figure bright, in noctovision environment.
Appended drawing reference: 1- protective film, the upper TAC film of 2-, 3- glue solid, 4- polarisation sublayer, TAC film under 5-, 6- are pressure-sensitive
Glue-line, 7- release film.
Specific embodiment
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, with reference to the accompanying drawing and specifically
The present invention is further described for embodiment.
The present invention passes through the concentration of each iodide ion compound on technique adjustment polaroid, and then adjusts polaroid in each light
The cross transmission under wavelength and parallel transmitance are learned, and then makes the luminosity function of its optical property and human eye in dark situation
(Fig. 2) is adapted, the final optics display effect for promoting polaroid under low light environment.
Embodiment 1
PVA original film is carried out to the first collaboration processing in 25 DEG C of pure water；40 DEG C containing 9.5% iodine, potassium iodide and
The second collaboration processing is carried out in the iodine mixed liquor of boric acid；In 55 DEG C of iodine mixed liquors containing 8% iodine, potassium iodide and boric acid into
Row third collaboration processing；It is carried out at the 4th collaboration in 35 DEG C of mixed liquors containing 6% iodine, potassium iodide, boric acid and zinc chloride
Reason.Apply tensile stress in all process steps simultaneously, makes its 6.3 times of total multiplying power.
The membrane material handled is dry in the baking oven inside gradient that temperature is 30~70 DEG C, synchronizes the unit width tension for making roller
For 750N/m.
The painting of polarisation sublayer will be prepared later and be covered with glue solid, it is synchronous be bonded upper contact angle be 30 ° up and down
TAC。
Finally respectively at 30~80 DEG C, 30~60 DEG C, humidity carried out respectively in 65%~85% environment before and after section ladder
Spend high-temperature process.
Release membrane process, which is bonded, finally by the coating of the fitting of protective film, pressure sensitive adhesive obtains polaroid finished product, polaroid
Structure as shown in Figure 1, respectively include the protective film 1 stacked gradually from top to bottom, upper TAC film 2, glue solid 3, polarisation
Layer 4, glue solid 3, lower TAC film 5, pressure-sensitive adhesive layer 6 and release film 7.
Embodiment 2
PVA original film is subjected to the first collaboration processing in 35 DEG C of solder(ing)acids containing 0.5%；Contain at 33 DEG C
The second collaboration processing is carried out in the iodine mixed liquor of 12.3% iodine, potassium iodide and boric acid；In 59 DEG C of iodine containing 7.1%, iodate
Third collaboration processing is carried out in the iodine mixed liquor of potassium, zinc chloride and boric acid；Contain 5.2% iodine, potassium iodide, boric acid at 46 DEG C
The 4th collaboration processing is carried out in mixed liquor.Apply tensile stress in all process steps simultaneously, makes its 5.6 times of total multiplying power.
The membrane material handled is dry in the baking oven inside gradient that temperature is 40~65 DEG C, synchronizes the unit width tension for making roller
For 1400N/m.
The painting of polarisation sublayer will be prepared later and be covered with glue solid, it is synchronous be bonded upper contact angle be 20 ° up and down
TAC。
Finally respectively at 35~95 DEG C, 40~70 DEG C, humidity carried out respectively in 45%~95% environment before and after section ladder
Spend high-temperature process.
Release membrane process, which is bonded, finally by the coating of the fitting of protective film, pressure sensitive adhesive obtains polaroid finished product, polaroid
Structure as shown in Figure 1, respectively include the protective film 1 stacked gradually from top to bottom, upper TAC film 2, glue solid 3, polarisation
Layer 4, glue solid 3, lower TAC film 5, pressure-sensitive adhesive layer 6 and release film 7.
Control group
Control group is the Display panel polaroid on the market that directly purchase obtains.
Test result
By formula defined in V7100 test and summary of the invention, above-described embodiment 1, embodiment 2 and control group are tested to obtain
Optical property be listed in the table below in 1 respectively, detailed initial data is listed in table 2:
Table 1: optical property list
Table 2:V7100 tests initial data
Interpretation of result:
By above-mentioned test structure it can be found that using polaroid prepared by the present invention, when normal optical performance is suitable,
Optical property under noctovision environment is substantially better than control group.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. a kind of manufacturing method of the polaroid shown suitable for noctovision environment, the polaroid includes successively heap from top to bottom
Folded protective film, upper TAC film, solid, polarisation sublayer, solid, lower TAC film, pressure-sensitive adhesive layer and release film, feature exist
In the preparation method comprises the following steps: the first collaboration handles the → the second collaboration processing → the → the four association of third collaboration processing
Same processing → polarisation sublayer dry → upper TAC film, lower TAC film fitting → leading portion high-temperature process → back segment high-temperature process → protective film
Fitting and pressure-sensitive adhesives are bonded release film, wherein the first collaboration processing includes 0~1% that membrane material is impregnated in 10~60 DEG C
In the aqueous solution of inorganic salts；Second collaboration processing includes that membrane material is impregnated in 15~55 DEG C, and mass concentration is 0.1~15% to contain
In iodine mixed liquor；Third collaboration processing and the 4th collaboration processing include that membrane material is impregnated in 30~70 DEG C, and concentration is 0.1~
15% mixed liquor containing iodine；Leading portion high-temperature process includes the progress step high temperature processing in 20~100 DEG C of baking oven；Back segment high temperature
Processing includes that step high temperature processing is carried out in 30%~95% baking oven in 20~70 DEG C, humidity.
2. a kind of manufacturing method of polaroid shown suitable for noctovision environment according to claim 1, feature exist
In the first collaboration handles the aqueous solution of used 0~1% inorganic salts, and the Inorganic Salts are boric acid, borax, chlorination
At least one of zinc, zinc iodide, potassium iodide.
3. a kind of manufacturing method of polaroid shown suitable for noctovision environment according to claim 1, feature exist
In the second collaboration handles the mixed liquor containing iodine that used concentration is 0.1~15%, comprising: iodine, potassium iodide, sodium iodide, iodate
At least one of zinc is also added with boric acid, borax, zinc chloride, zinc iodide, cobalt chloride, chromium chloride, glyoxal, glutaraldehyde, second
At least one of glycol, glycerol.
4. a kind of manufacturing method of polaroid shown suitable for noctovision environment according to claim 1, feature exist
In third collaboration processing and the 4th collaboration handle the mixed liquor that used mass concentration is 1~15%, comprising: iodine, iodate
At least one of potassium, sodium iodide, zinc iodide are also added with boric acid, borax, zinc chloride, zinc iodide, cobalt chloride, chromium chloride, second
At least one of dialdehyde, glutaraldehyde, ethylene glycol, glycerol.
5. a kind of manufacturing method of polaroid shown suitable for noctovision environment according to claim 1-4,
It is characterized in that, the first collaboration processing, the second collaboration processing, third collaboration processing and the 4th collaboration processing include passing through roller
Wheel is applied with tensile stress, the orientation process for being uniaxially stretched PVA film material；Stretching total multiplying power is 5~7 times.
6. a kind of manufacturing method of polaroid shown suitable for noctovision environment according to claim 5, feature exist
In the drying of polarisation sublayer includes carrying out gradient drying in 30~90 DEG C of baking oven, so that the moisture on film is volatilized and is reduced
The fold of membrane material, and the unit width tension for controlling roller is 200~1600N/m.
7. a kind of manufacturing method of polaroid shown suitable for noctovision environment according to claim 6, feature exist
In, upper TAC film, the fitting of lower TAC film include the two sides up and down that polarisation sublayer is bonded in by glue solid, upper TAC film, under
TAC film, which passes through base extraction, makes 40 ° of contact angle <.
8. a kind of polaroid shown suitable for noctovision environment, which is characterized in that using as described in claim any one of 1-7
Preparation method prepare, and polaroid include the protective film stacked gradually from top to bottom, upper TAC film, glue solid,
Polarisation sublayer, glue solid, lower TAC film, pressure-sensitive adhesive layer and release film.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1815281A (en) * | 2005-02-02 | 2006-08-09 | 力特光电科技股份有限公司 | Method for reducing optical film contact angle |
| CN101526637A (en) * | 2008-03-06 | 2009-09-09 | 达信科技股份有限公司 | Polarizing plate and manufacturing method thereof |
| CN101718885A (en) * | 2008-10-08 | 2010-06-02 | 住友化学株式会社 | High contrast polarizer and liquid crystal display |
| CN202033553U (en) * | 2010-11-18 | 2011-11-09 | Tcl显示科技（惠州）有限公司 | Liquid crystal module with night light mode polarizer sheet |
| CN205406067U (en) * | 2016-03-11 | 2016-07-27 | 重庆师范大学 | Self -adaptation environment type projecting apparatus |
| CN108121028A (en) * | 2017-12-13 | 2018-06-05 | 昆山之奇美材料科技有限公司 | The polaroid and preparation process of a kind of water resistant, high temperature resistant |
-
2019
- 2019-03-05 CN CN201910164505.4A patent/CN109725454A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1815281A (en) * | 2005-02-02 | 2006-08-09 | 力特光电科技股份有限公司 | Method for reducing optical film contact angle |
| CN101526637A (en) * | 2008-03-06 | 2009-09-09 | 达信科技股份有限公司 | Polarizing plate and manufacturing method thereof |
| CN101718885A (en) * | 2008-10-08 | 2010-06-02 | 住友化学株式会社 | High contrast polarizer and liquid crystal display |
| CN202033553U (en) * | 2010-11-18 | 2011-11-09 | Tcl显示科技（惠州）有限公司 | Liquid crystal module with night light mode polarizer sheet |
| CN205406067U (en) * | 2016-03-11 | 2016-07-27 | 重庆师范大学 | Self -adaptation environment type projecting apparatus |
| CN108121028A (en) * | 2017-12-13 | 2018-06-05 | 昆山之奇美材料科技有限公司 | The polaroid and preparation process of a kind of water resistant, high temperature resistant |
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