CN107167862A - The preparation method of polaroid, display device and polaroid - Google Patents
The preparation method of polaroid, display device and polaroid Download PDFInfo
- Publication number
- CN107167862A CN107167862A CN201710547999.5A CN201710547999A CN107167862A CN 107167862 A CN107167862 A CN 107167862A CN 201710547999 A CN201710547999 A CN 201710547999A CN 107167862 A CN107167862 A CN 107167862A
- Authority
- CN
- China
- Prior art keywords
- polaroid
- cellulose nano
- polarizing film
- light polarizing
- fibrous membrane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- 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
- G02B5/305—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 including organic materials, e.g. polymeric layers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Polarising Elements (AREA)
Abstract
The present invention discloses the preparation method of a kind of polaroid, display device and polaroid, and the polaroid includes light polarizing film, and the light polarizing film is the cellulose nano-fibrous membrane for being adsorbed with dichroic material.There is good film forming due to cellulose nano-fibrous, photopermeability is high, thermal coefficient of expansion is small, using the cellulose nano-fibrous membrane for being adsorbed with dichroic material as light polarizing film, polaroid of the prior art can be effectively solved due to the problem of the contraction warpage of light polarizing film caused by temperature and humidity change causes light leak.
Description
Technical field
The present invention relates to display technology field, the preparation of more particularly to a kind of polaroid, display device and polaroid
Method.
Background technology
Polaroid is one of basic component of LCDs, is a kind of film for allowing specific direction polarised light to penetrate
Panel, in the manufacturing process of liquid crystal panel, respectively pastes 1 polaroid up and down, and polarization direction needs in vertical direction, main to make
Be when electric field change acts on liquid crystal, make light source produce phase difference and light and shade state is presented, to display font and pattern
Deng.
The most frequently used light polarizing film is macromolecule dichroic type in current polaroid, typically commonly uses PVA (polyvinyl alcohol) material,
Dichroic material (iodine system, dyestuff system etc.) in absorption, makes iodide ion or dyestuff uniform adsorption in PVA molecular surfaces, after heating again
Unidirectionally extended PVA film, reaches the dichromatic function of absorption.PVA molecules are the random distribution of any angle, stress stretching before stretching
Molecule is increasingly towards draw direction afterwards, and the iodine molecule adsorbed on PVA molecules also produces directionality therewith, therefore can absorb flat
Row only allows the polarised light of vertical direction to pass through in the polarised light of its arragement direction.
Liquid crystal panel can cause polaroid of the configuration in liquid crystal panel both sides to occur because of the change of temperature humidity when using
Shrink, reference picture 1, be that polaroid shrinks schematic diagram in the prior art.The contraction of polaroid is primarily due to stretch in light polarizing film
PVA molecules caused under the action of heat by ordinal regression disordered state.Liquid crystal panel sticks up because of the contraction of light polarizing film
Song, can cause light leakage phenomena.
In the prior art, the major way of problem is optimization PVC draw ratios in solution, reduces the thickness of polaroid, to press down
Contraction of the light polarizing film processed when temperature humidity changes, but this method can not fundamentally solve the problem of PVC shrinks, and
With the thinning tendency of display panel product, the leakage problem of polaroid becomes increasingly conspicuous.
The content of the invention
It is of the prior art to solve the invention provides the preparation method of a kind of polaroid, display device and polaroid
Light polarizing film is due to leakage problem caused by contraction warpage.
In a first aspect, the present invention provides a kind of polaroid, including light polarizing film, the light polarizing film is to be adsorbed with dichroic material
Cellulose nano-fibrous membrane.
Alternatively, the light polarizing film side, which is cascading, the first protective layer, pressure-sensitive adhesive layer and mould release membrance；With
The light polarizing film opposite side is cascading and has the second protective layer and diaphragm.
Alternatively, first protective layer and second protective layer are Triafol T layer, and thickness is 10un
~20um.
Alternatively, the thickness of the pressure-sensitive adhesive layer is 5um.
Alternatively, the thickness of the cellulose nano-fibrous membrane is 5~10um.
Second aspect, the present invention provides a kind of display panel, including above-mentioned polaroid.
The third aspect, the present invention provides a kind of preparation method of polaroid, comprises the following steps：
Cellulose nano-fibrous membrane is made with the tape casting in preset temperature in cellulose nano-fibrous suspension；
The dry cellulose nano-fibrous membrane is immersed in dichroic material solution, makes the cellulose Nanowire
Tie up film and adsorb the dichroic material.
Alternatively, in addition to：
Using laminating the first protective layer, pressure sensitive adhesive are sequentially formed in the side of the dry cellulose nano-fibrous membrane
Layer and mould release membrance, sequentially form the second protective layer and diaphragm in the opposite side of the cellulose nano-fibrous membrane, polarisation are made
Piece.
Alternatively, the concentration of the cellulose nano-fibrous suspension is 0.5~5wt%.
Alternatively, the dichroic material solution is the iodide ion solution that concentration is 5~25wt%.
Compared with prior art, the embodiment of the present invention has advantages below：
Cellulose nano-fibrous to have good film forming, photopermeability is high, and thermal coefficient of expansion is small, using being adsorbed with two colors
The cellulose nano-fibrous membrane of property material can effectively solve polaroid of the prior art due to temperature and wet as light polarizing film
The problem of contraction warpage of light polarizing film causes light leak caused by degree change.
Brief description of the drawings
Fig. 1 show polaroid in the prior art and shrinks schematic diagram；
Fig. 2 show a kind of structural representation of polaroid provided in an embodiment of the present invention；
Fig. 3 show a kind of manufacture method flow chart of polaroid provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on this hair
Embodiment in bright, those of ordinary skill in the art's every other implementation acquired under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Embodiment one
Reference picture 2, a kind of structural representation of the polaroid provided for the present invention.
The polaroid includes light polarizing film 1, and light polarizing film 1 is the cellulose nano-fibrous membrane for being adsorbed with dichroic material, thickness
For 5~10um.Being cascading in the side of light polarizing film 1 has the first protective layer 2, pressure-sensitive adhesive layer 3 and mould release membrance 4；In polarisation
The opposite side of film 1, which is cascading, the second protective layer 5 and diaphragm 6.
Cellulose nano-fibrous material has good film forming, optical transmission height, small thermal coefficient of expansion, light weight, property
Valency than it is high the advantages of.Cellulose nano-fibrous radial dimension is up to 3~4nm, and length is up to micron order, as a kind of special
Polymer substrate, can effectively be orientated by the tape casting film forming, require no stretching process, therefore using cellulose nano-fibrous
The light polarizing film 1 being made, can fundamentally solve polaroid and shrink leakage problem caused by warpage.
Wherein, the first protective layer 2 and the second protective layer 5 can be Triafol T layer, and thickness is 10um~20um,
This layer can play effective support protective effect to light polarizing film 1.
The thickness of pressure-sensitive adhesive layer 3 is 5um, and the layer is used to be pasted with display panel.
The material of mould release membrance 4 can be PET (polyethylene terephthalate) material, for protecting pressure-sensitive adhesive layer 3, and
And mould release membrance 4 is easier to separate with pressure-sensitive adhesive layer 3, facilitates polaroid to be pasted with display panel.
The material of diaphragm 6 can be silica material, and the second protective layer 5 is played a protective role, it is to avoid second protects
Sheath 5 is by outside contamination or scratching etc., it is ensured that the normal of polaroid is used.
By the above, the embodiment of the present invention includes advantages below：
Cellulose nano-fibrous to have good film forming, photopermeability is high, and thermal coefficient of expansion is small, using being adsorbed with two colors
The cellulose nano-fibrous membrane of property material can effectively solve polaroid of the prior art due to temperature and wet as light polarizing film
The problem of contraction warpage of light polarizing film causes light leak caused by degree change.
Embodiment two
Reference picture 3, is a kind of manufacture method flow chart of polaroid provided in an embodiment of the present invention.
Step 100, cellulose nano-fibrous suspension is made in preset temperature of the tape casting cellulose nano-fibrous
Film.
In the step, the concentration of cellulose nano-fibrous suspension is 0.5~5wt%, under conditions of 50 DEG C of heating,
Film is made with the tape casting, can effectively be orientated, and require no stretching process.It is cellulose nano-fibrous that there is good film-forming property, light
The advantages of learning by property height, small thermal coefficient of expansion, light weight, high cost performance, light polarizing film is made with cellulose nano-fibrous material, can
Prior art is effectively solved due to leakage problem caused by light polarizing film contraction warpage.
Step 200, dry cellulose nano-fibrous membrane is immersed in dichroic material solution, makes cellulose Nanowire
Tie up film absorption dichroic material.
In the step, the solution for the dichroic material that the present embodiment is selected is the iodide ion solution that concentration is 5~25wt%,
Iodide ion solution is a kind of conventional dichroic material solution.It is made in the upper dichroic material of cellulose nano-fibrous membrane absorption
Light polarizing film there is dichroism.Certainly the solution of other dichroic materials is also can select, in this regard, the present invention is not limited.
Step 300, using laminating the side of the dry cellulose nano-fibrous membrane for being adsorbed with dichroic material according to
The first protective layer of secondary formation, pressure-sensitive adhesive layer and mould release membrance, sequentially form the second protective layer and diaphragm in opposite side, polarisation are made
Piece.
Polaroid can be formed by the step, its structure is referred to Fig. 2, light polarizing film 1 is to be adsorbed with dichroic material
Cellulose nano-fibrous membrane, thickness is 5~10um.Being cascading in the side of light polarizing film 1 has the first protective layer 2, pressure-sensitive
Glue-line 3 and mould release membrance 4；Being cascading in the opposite side of light polarizing film 1 has the second protective layer 5 and diaphragm 6.
Wherein, the first protective layer 2 and the second protective layer 5 can be Triafol T layer, and thickness is 10um~20um,
This layer can play effective support protective effect to light polarizing film 1.
The thickness of pressure-sensitive adhesive layer 3 is 5um, and this layer is used for the stickup with display panel.
The material of mould release membrance 4 can be PET (polyethylene terephthalate) material, for protecting pressure-sensitive adhesive layer 3, and
And mould release membrance 4 is easier to separate with pressure-sensitive adhesive layer 3, facilitates polaroid to be pasted with display panel.
The material of diaphragm 6 can be silica material, and the second protective layer 5 can be played a protective role, it is to avoid the
Two protective layers 5 are by outside contamination or scratching etc., it is ensured that the normal of polaroid is used.
By the above, the embodiment of the present invention includes advantages below：
It is cellulose nano-fibrous that there is good film forming, can effectively it be orientated using the tape casting film forming, it is not necessary to by drawing
Stretch process, and it is cellulose nano-fibrous also have the advantages that optics is high by property height, small thermal coefficient of expansion, light weight, cost performance,
Light polarizing film is made with cellulose nano-fibrous material, prior art can be effectively solved due to light leak caused by light polarizing film contraction warpage
Problem.
The embodiment of the present invention additionally provides a kind of display device, including above-mentioned polaroid.
Each embodiment in this specification is described by the way of progressive, what each embodiment was stressed be with
Between the difference of other embodiment, each embodiment identical similar part mutually referring to.For system embodiment
For, because it is substantially similar to embodiment of the method, so description is fairly simple, referring to the portion of embodiment of the method in place of correlation
Defend oneself bright.
Although having been described for the preferred embodiment of the embodiment of the present invention, those skilled in the art once know base
This creative concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to
Including preferred embodiment and fall into having altered and changing for range of embodiment of the invention.
Finally, in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or terminal device including a series of key elements are not only wrapped
Those key elements, but also other key elements including being not expressly set out are included, or also include being this process, method, article
Or the intrinsic key element of terminal device.In the absence of more restrictions, by wanting that sentence "including a ..." is limited
Element, it is not excluded that also there is other identical element in the process including the key element, method, article or terminal device.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (10)
1. a kind of polaroid, it is characterised in that including：
Light polarizing film, the light polarizing film is the cellulose nano-fibrous membrane for being adsorbed with dichroic material.
2. polaroid according to claim 1, it is characterised in that the light polarizing film side is cascading and has the first guarantor
Sheath, pressure-sensitive adhesive layer and mould release membrance；With
The light polarizing film opposite side is cascading and has the second protective layer and diaphragm.
3. polaroid according to claim 2, it is characterised in that first protective layer and second protective layer are
Triafol T layer, thickness is 10un~20um.
4. polaroid according to claim 2, it is characterised in that the thickness of the pressure-sensitive adhesive layer is 5um.
5. the polaroid according to claim any one of 1-4, it is characterised in that the thickness of the cellulose nano-fibrous membrane
For 5~10um.
6. a kind of display panel, it is characterised in that including the polaroid as described in claim any one of 1-5.
7. a kind of preparation method of polaroid, it is characterised in that comprise the following steps：
Cellulose nano-fibrous membrane is made with the tape casting in preset temperature in cellulose nano-fibrous suspension；
The dry cellulose nano-fibrous membrane is immersed in dichroic material solution, makes the cellulose nano-fibrous membrane
Adsorb the dichroic material.
8. the preparation method of polaroid according to claim 7, it is characterised in that also include：
Using laminating sequentially formed in the side of the dry cellulose nano-fibrous membrane the first protective layer, pressure-sensitive adhesive layer and
Mould release membrance, sequentially forms the second protective layer and diaphragm in the opposite side of the cellulose nano-fibrous membrane, polaroid is made.
9. the preparation method of polaroid according to claim 7, it is characterised in that the cellulose nano-fibrous suspension
The concentration of liquid is 0.5~5wt%.
10. the preparation method of polaroid according to claim 7, it is characterised in that the dichroic material solution is dense
Spend the iodide ion solution for 5~25wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710547999.5A CN107167862A (en) | 2017-07-06 | 2017-07-06 | The preparation method of polaroid, display device and polaroid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710547999.5A CN107167862A (en) | 2017-07-06 | 2017-07-06 | The preparation method of polaroid, display device and polaroid |
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|---|---|
| CN107167862A true CN107167862A (en) | 2017-09-15 |
Family
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| CN201710547999.5A Pending CN107167862A (en) | 2017-07-06 | 2017-07-06 | The preparation method of polaroid, display device and polaroid |
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Application publication date: 20170915 |