CN207440327U - Improve the transmission-type polaroid structure of wet-hot aging performance - Google Patents
Improve the transmission-type polaroid structure of wet-hot aging performance Download PDFInfo
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- CN207440327U CN207440327U CN201721606986.2U CN201721606986U CN207440327U CN 207440327 U CN207440327 U CN 207440327U CN 201721606986 U CN201721606986 U CN 201721606986U CN 207440327 U CN207440327 U CN 207440327U
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- Prior art keywords
- film
- polaroid
- transmission
- aging performance
- coating
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- 230000032683 aging Effects 0.000 title claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 29
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 28
- 239000011248 coating agent Substances 0.000 claims abstract description 25
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims abstract description 18
- 150000001875 compounds Chemical class 0.000 claims abstract description 16
- 230000001681 protective effect Effects 0.000 claims abstract description 14
- 238000004043 dyeing Methods 0.000 claims abstract description 13
- 229920000058 polyacrylate Polymers 0.000 claims description 8
- 229920002799 BoPET Polymers 0.000 claims description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 230000013011 mating Effects 0.000 claims 1
- 239000000853 adhesive Substances 0.000 abstract description 8
- 230000001070 adhesive effect Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 239000010408 film Substances 0.000 description 87
- 239000010410 layer Substances 0.000 description 34
- 239000004372 Polyvinyl alcohol Substances 0.000 description 23
- 229920002451 polyvinyl alcohol Polymers 0.000 description 23
- 230000000694 effects Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 239000012528 membrane Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 229920001477 hydrophilic polymer Polymers 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000028161 membrane depolarization Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a kind of transmission-type polaroid structure for improving wet-hot aging performance, which includes release film, former polaroid, impermeable layer and protective film；The compound fixation in upper surface after the lower surface coating pressure sensitive adhesive of the release film with former polaroid, the impermeable layer is fixed on the lower surface of former polaroid, and the protective film is fitted in the lower surface of impermeable layer；The impermeable layer is hydrophobic film layer or coating.The utility model adds the impermeable layer of one layer of hydrophobic film layer or coating on the basis of original structure, it can prevent or postpone steam to penetrate into PVA film layer, thus reach under the premise of PVA film dyeing drawing process, compound adhesive etc. is not changed, improve the wet-hot aging performance of transmission-type polaroid.
Description
Technical field
The utility model is related to polaroid production field more particularly to a kind of transmission-type polaroids for improving wet-hot aging performance
Structure.
Background technology
Polaroid is the main material of LCD, is the functional material that a kind of plural layers are combined, and manufacturing process is：
First, PVA film（Polyvinyl alcohol）Being formed after the processes such as washing swelling, dyeing, fixation, stretching, drying has polarisation effect
Film, then in each compound one layer of support membrane in its both sides（Such as TAC film）, support and protective effect are played, so manufactured polarisation
Film is referred to as former polaroid；Secondly, pressure sensitive adhesive is coated in former polaroid one side, through cured cross-linked, the transmission-type for LCD is made
Polaroid.
Weatherability is one of important parameter of polaroid, and polaroid is attached on liquid crystal cell and is surveyed under corresponding environmental condition
Examination, be unable to after polarisation built-in testing warpage, cannot foam, the variation of its optical parameter need to be less than 3%.The warpage of polaroid is asked with foaming
Topic is mainly influenced by pressure sensitive adhesive, and optical parameter variation is then related to the techniques such as the dyeing of PVA film, fixation, stretching, compound adhesive.
PVA film is a kind of hydrophilic polymer, and PVA film has certain degree of cross linking after tint retention, but it still holds
The easy moisture absorption makes its molecule chain relaxation and loses orientation effect, and unordered shape can also be become by adsorbing the dichroic dye on PVA film
State causes the optical parameter of polaroid to change and greatly or even loses polarisation effect very.The support membrane of PVA both sides obstructs itself and the external world
Environment contacts directly, but under hot and humid environment, steam permeates after still may pass through support membrane to PVA film layer, thus may be used
See, the hydrophobic quality of support membrane directly affects the weatherability of polaroid, especially influences the wet-hot aging performance of polaroid.
Conventional transmission type polaroid structure includes release film, pressure sensitive adhesive, interior TAC film, dyeing PVA film, outer TAC film and protection
Film, when in use, protective film and release film are easily peeled off.Wherein, outer TAC film and interior TAC film are two-sided alkali process TAC film,
There is one layer of pressure sensitive adhesive on interior TAC film surface, and using when be covered on glass, glass and pressure-sensitive adhesive layer all have steam barrier to make
With so steam is more difficult to penetrate into PVA film layer from interior TAC film；And the outer easy moisture absorption of TAC film, steam infiltration steam are oozed from TAC film
PVA film is entered thoroughly, when wet-hot aging performance is tested, the very fast depolarization of polaroid or loses polarisation effect.
The content of the invention
For shortcoming present in above-mentioned technology, the utility model provides a kind of transmission-type for improving wet-hot aging performance
Polaroid structure, the structure improve transmission-type polaroid under the premise of PVA film dyeing drawing process, compound adhesive etc. is not changed
Wet-hot aging performance.
To achieve the above object, the utility model provides a kind of transmission-type polaroid structure for improving wet-hot aging performance, bag
Include release film, former polaroid, impermeable layer and protective film；The release film lower surface coating pressure sensitive adhesive after with former polaroid
Upper surface is mutually fixed compound, and the impermeable layer is fixed on the lower surface of former polaroid, and the protective film is fitted in antiseepage
The lower surface of permeable layers；The impermeable layer is hydrophobic film layer or coating.
Wherein, the former polaroid includes interior TAC film, dyeing PVA film and outer TAC film, the interior TAC film, dyeing PVA film
The original polaroid is formed after being stacked gradually with outer TAC film three；The pressure sensitive adhesive is fixed between interior TAC film and release film, institute
State the lower surface that impermeable layer is fixed on outer TAC film.
Wherein, the thickness of the pressure sensitive adhesive is 23-27 μm.
Wherein, the impermeable layer is hydrophobic film or hydrophobic coating.
Wherein, the hydrophobic film is PET film or PMMA film, and the hydrophobic coating is high-crosslinking-degree polyacrylate
Coating or fluorine-contaninig polyacrylate coating.
The beneficial effects of the utility model are：Compared with prior art, raising wet-hot aging performance provided by the utility model
Transmission-type polaroid structure, which mainly includes release film, former polaroid, impermeable layer and protective film, in original structure
On the basis of add the impermeable layer of one layer of hydrophobic film layer or coating, can prevent or postpone steam to penetrate into PVA film layer,
Thus reach under the premise of PVA film dyeing drawing process, compound adhesive etc. is not changed, improve the humidity resistance of transmission-type polaroid
Energy.
Description of the drawings
Fig. 1 is the structure diagram of the transmission-type polaroid structure of the raising wet-hot aging performance of the utility model.
Specific embodiment
In order to more clearly state the utility model, the utility model is further described below in conjunction with the accompanying drawings.
Referring to Fig. 1, the transmission-type polaroid structure provided by the utility model for improving wet-hot aging performance, including release film
21st, former polaroid, impermeable layer 26 and protective film 27；The release film lower surface coating pressure sensitive adhesive 22 after with former polaroid
Upper surface is mutually fixed compound, and the impermeable layer is fixed on the lower surface of former polaroid, and the protective film is fitted in antiseepage
The lower surface of permeable layers；The impermeable layer is hydrophobic film layer or coating.
Compared to the situation of the prior art, the transmission-type polaroid knot provided by the utility model for improving wet-hot aging performance
Structure, the structure mainly include release film, former polaroid, impermeable layer and protective film, one are added on the basis of original structure
The impermeable layer of layer hydrophobic film layer or coating, can prevent or postpone steam to penetrate into PVA film layer, thus reach and do not changing
Under the premise of PVA film dyeing drawing process, compound adhesive etc., the wet-hot aging performance of transmission-type polaroid is improved.
Wherein, the former polaroid includes interior TAC film 23, dyeing PVA film 24 and outer TAC film 25, the interior TAC film, dye
Color PVA film and outer TAC film three form the original polaroid after stacking gradually；The pressure sensitive adhesive 22 be fixed on interior TAC film with it is release
Between film, the impermeable layer is fixed on the lower surface of outer TAC film.The thickness of the pressure sensitive adhesive is 23-27 μm.It is described impermeable
Layer is hydrophobic film or hydrophobic coating.The hydrophobic film is PET film or PMMA film, and the hydrophobic coating is handed over to be high
Connection degree polyacrylate coatings or fluorine-contaninig polyacrylate coating.
This case increased hydrophobic film of institute or hydrophobic coating, only need to select one of which.If increase hydrophobicity
Coating can be pre-coated in outer TAC film layer surface；It is compound with outer TAC film if increasing hydrophobic film, it is used
Adhesive can be pressure sensitive adhesive or other optical cements.It is polarized 24 both sides of dyeing PVA film of light action and interior TAC film 23, outer TAC film
25 is compound, compound adhesive be PVA powder water dissolution objects or its modifier, about 0.2-1 μm of the dry thickness of two layers of glue.Pressure sensitive adhesive 22 is coated in
21 surface of release film, then compound with interior TAC film 23, release film the later stage using when be easily peeled off.Glue-line dry thickness is 23-27 μ
M, pressure sensitive adhesive cured cross-linked 5 ~ 7 days at room temperature.
This case is selecting hydrophobic high-crosslinking-degree polyacrylate coatings, can precoat on outer 25 surface of TAC film, no
It only obstructs steam quickly to permeate to PVA film layer, also with scratch resistance effect.
In the present embodiment, also alternative hydrophobic high-crosslinking-degree polyacrylate coatings, and select hydrophobicity PET thin
Film, compound with outer TAC film 25, compound adhesive is pressure sensitive adhesive or other optical cements.
In the present embodiment, protective film 27 is for protecting hydrophobic film or coating, in the later stage in use, protective film 27 holds
It is easily peelable.
Using transmission-type polaroid structure provided by the utility model, increase by one layer of hydrophobic film or hydrophobic coating,
Other process conditions are not changed, under 70 DEG C × 90%RH test environments, institute's tolerance time increases by more than 30%.
Disclosed above is only several specific embodiments of the utility model, but the utility model is not limited to this,
The changes that any person skilled in the art can think of should all fall into the scope of protection of the utility model.
Claims (5)
1. a kind of transmission-type polaroid structure for improving wet-hot aging performance, which is characterized in that including release film, former polaroid, prevent
Permeable formation and protective film；Compound, institute is mutually fixed in upper surface after the lower surface coating pressure sensitive adhesive of the release film with former polaroid
It states impermeable layer to be fixed on the lower surface of former polaroid, and the protective film is fitted in the lower surface of impermeable layer；It is described anti-
Permeable formation is hydrophobic film layer or coating.
2. the transmission-type polaroid structure according to claim 1 for improving wet-hot aging performance, which is characterized in that described former inclined
Mating plate includes interior TAC film, dyeing PVA film and outer TAC film, and the interior TAC film, dyeing PVA film and outer TAC film three stack gradually
After form the original polaroid；The pressure sensitive adhesive is fixed between interior TAC film and release film, and the impermeable layer is fixed on outer TAC
The lower surface of film.
3. the transmission-type polaroid structure according to claim 1 for improving wet-hot aging performance, which is characterized in that described pressure-sensitive
The thickness of glue is 23-27 μm.
4. the transmission-type polaroid structure according to claim 1 for improving wet-hot aging performance, which is characterized in that the antiseepage
Permeable layers are hydrophobic film or hydrophobic coating.
5. the transmission-type polaroid structure according to claim 4 for improving wet-hot aging performance, which is characterized in that described hydrophobic
Property film be PET film or PMMA film, the hydrophobic coating be high-crosslinking-degree polyacrylate coatings or fluorine-contaninig polyacrylate
Coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721606986.2U CN207440327U (en) | 2017-11-27 | 2017-11-27 | Improve the transmission-type polaroid structure of wet-hot aging performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721606986.2U CN207440327U (en) | 2017-11-27 | 2017-11-27 | Improve the transmission-type polaroid structure of wet-hot aging performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207440327U true CN207440327U (en) | 2018-06-01 |
Family
ID=62287970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721606986.2U Active CN207440327U (en) | 2017-11-27 | 2017-11-27 | Improve the transmission-type polaroid structure of wet-hot aging performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207440327U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114089462A (en) * | 2021-12-10 | 2022-02-25 | 武汉华星光电半导体显示技术有限公司 | Polaroid and display device |
| CN114966937A (en) * | 2022-05-24 | 2022-08-30 | 周永强 | Preparation method of polarizing plate, polarizing plate and display device |
-
2017
- 2017-11-27 CN CN201721606986.2U patent/CN207440327U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114089462A (en) * | 2021-12-10 | 2022-02-25 | 武汉华星光电半导体显示技术有限公司 | Polaroid and display device |
| CN114089462B (en) * | 2021-12-10 | 2023-11-28 | 武汉华星光电半导体显示技术有限公司 | Polarizer and display device |
| CN114966937A (en) * | 2022-05-24 | 2022-08-30 | 周永强 | Preparation method of polarizing plate, polarizing plate and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Transmission type polarizer structure for improving heat and humidity resistance Effective date of registration: 20200916 Granted publication date: 20180601 Pledgee: Bank of China Limited by Share Ltd. Heyuan branch Pledgor: GUANGDONG MINGGE PHOTOELECTRIC TECHNOLOGY Co.,Ltd. Registration number: Y2020980006095 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231109 Granted publication date: 20180601 Pledgee: Bank of China Limited by Share Ltd. Heyuan branch Pledgor: GUANGDONG MINGGE PHOTOELECTRIC TECHNOLOGY CO.,LTD. Registration number: Y2020980006095 |