CN106886103A - Optical compensating film and preparation method thereof - Google Patents
Optical compensating film and preparation method thereof Download PDFInfo
- Publication number
- CN106886103A CN106886103A CN201710127996.6A CN201710127996A CN106886103A CN 106886103 A CN106886103 A CN 106886103A CN 201710127996 A CN201710127996 A CN 201710127996A CN 106886103 A CN106886103 A CN 106886103A
- Authority
- CN
- China
- Prior art keywords
- cholesteric liquid
- crystal composition
- weight
- crystal
- compensating film
- 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
Links
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Chemistry (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal Substances (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Polarising Elements (AREA)
Abstract
Present disclose provides a kind of optical compensating film and a kind of method for preparing optical compensating film.The method for preparing optical compensating film comprises the steps：Mixture optical activity is that left-handed the first cholesteric liquid-crystal composition and mixture optical activity are the second cholesteric liquid-crystal composition of dextrorotation, and at room temperature by their uniform mixing, to form mixture, wherein, the back wave position of the first cholesteric liquid-crystal composition is identical with the back wave position of the second cholesteric liquid-crystal composition；The mixture is heated to glass transition temperature, is then cooled down；And ultraviolet radioactive is carried out to the mixture, so as to form optical compensating film by solidifying.In accordance with an embodiment of the present disclosure, it is possible to increase the trichromatic excitation of red green blue, so as to lift the colour gamut of liquid crystal display.Additionally, the preparation method of the disclosure be related to prepare material source extensively, preparation process is simple, and can be widely applied to actual production.
Description
Technical field
This disclosure relates to field of application of liquid crystal, more particularly to a kind of optical compensating film for improving colour gamut and a kind of system
The method of standby optical compensating film.
Background technology
In liquid crystal display device, colour gamut is the finger for describing the chromatic rendition ability that liquid crystal display device can reach
Mark, the display screen of colour gamut high is substantially improved on gamut range, can show the color more enriched, and with more preferable layer
Secondary sense.Therefore, an important development trend for making liquid crystal display device that there is colour gamut high to be current display screen.
In the prior art, although liquid crystal display module can realize colour gamut high, decrease liquid crystal panel is there is simultaneously
Display brightness and the not good problem of Consumer's Experience.
The content of the invention
In order to lift the colour gamut of liquid crystal display by improving the trichromatic excitations of RGB, there is provided one kind can be provided
Optical compensating film of colour gamut and preparation method thereof, it prepares material source extensively, and preparation process is simple can be widely applied to
In actual production.
According to the one side of the disclosure, there is provided a kind of method for preparing optical compensating film, methods described includes following
Step：Mixture optical activity is that left-handed the first cholesteric liquid-crystal composition and mixture optical activity are the second cholesteric liquid crystal of dextrorotation
Composition, and at room temperature by their uniform mixing, to form mixture, wherein, the reflection of the first cholesteric liquid-crystal composition
Ripple position is identical with the back wave position of the second cholesteric liquid-crystal composition；The mixture is heated to glass transition temperature, so
After cooled down；And ultraviolet radioactive is carried out to the mixture, so as to form optical compensating film by solidifying.
In one embodiment, first cholesteric liquid-crystal composition can include small molecule nematic crystal, light can
Polymerized monomer, chiral siloxanes liquid crystal molecule and initiator, so that the optical activity of first cholesteric liquid-crystal composition is a left side
Rotation.
In one embodiment, second cholesteric liquid-crystal composition can include small molecule nematic crystal, light can
Polymerized monomer, chiral siloxanes liquid crystal molecule and initiator, so that the optical activity of second cholesteric liquid-crystal composition is the right side
Rotation.
In one embodiment, first cholesteric liquid-crystal composition can include small molecule nematic crystal, light can
Polymerized monomer, siloxanes liquid crystal molecule, the first chiral additives and initiator, so that first cholesteric liquid-crystal composition
Optical activity is left-handed.
In one embodiment, second cholesteric liquid-crystal composition can include small molecule nematic crystal, light can
Polymerized monomer, siloxanes liquid crystal molecule, the second chiral additives and initiator, so that second cholesteric liquid-crystal composition
Optical activity is dextrorotation.
In one embodiment, first cholesteric liquid-crystal composition can include small molecule nematic crystal, light can
Polymerized monomer, chiral siloxanes liquid crystal molecule, the first chiral additives and initiator, so that first cholesteric liquid crystal is combined
The optical activity of thing is left-handed.
In one embodiment, second cholesteric liquid-crystal composition can include small molecule nematic crystal, light can
Polymerized monomer, chiral siloxanes liquid crystal molecule, the second chiral additives and initiator, so that second cholesteric liquid crystal is combined
The optical activity of thing is dextrorotation.
In one embodiment, the gross weight based on first cholesteric liquid-crystal composition, the first cholesteric phase liquid
Crystal composite includes that the small molecule nematic crystal of 20 weight of weight % to 80.9 %, the light of 5 weight of weight % to 35 % can gather
Close the initiator of monomer, the chiral siloxanes liquid crystal molecule of 14 weight of weight % to 44 % and 0.1 weight of weight % to 1 %.
In one embodiment, the gross weight based on second cholesteric liquid-crystal composition, the second cholesteric phase liquid
Crystal composite includes that the small molecule nematic crystal of 20 weight of weight % to 80.9 %, the light of 5 weight of weight % to 35 % can gather
Close the initiator of monomer, the chiral siloxanes liquid crystal molecule of 14 weight of weight % to 44 % and 0.1 weight of weight % to 1 %.
In one embodiment, when mixed uniformly step is performed, hot polymerization inhibitor can be added.
According to another aspect of the present disclosure, there is provided a kind of optical compensating film, the optical compensating film is by above
Prepared by the method for preparing optical compensating film of description.
Specific embodiment
It will be appreciated that when element or layer be referred to as another element or layer " on " or " being connected to " another element or layer
When, the element or layer can directly on another element or layer, be directly connected to or be bonded directly to another element or layer, or
Can also there is intermediary element or intermediate layer.Conversely, when element be referred to as " direct " another element or layer " on " it is or " direct
It is connected to " another element or during layer, in the absence of intermediary element or intermediate layer.As used herein, term "and/or" includes one
It is individual or it is multiple correlation listed by project any combination and all combinations.
For the ease of description, can be used space relative terms herein, such as D score, " in ... top ", " on ", " ... under
Side " etc. describes an element or feature with other elements or the relation of feature.It will be appreciated that space relative terms are intended to bag
Containing the different azimuth in use or operation of the device in addition to the orientation of description.
As used herein, unless the context clearly indicates otherwise, otherwise singulative is " one (kind) " and " described
(being somebody's turn to do) " is also intended to include plural form.It will be further understood that ought in this manual using term "comprising" and/or " including "
When, illustrate there is the feature, entirety, step, operation, element and/or component, but do not preclude the presence or addition of one or more
Further feature, entirety, step, operation, element, component and/or their group.
Hereinafter, embodiment of this disclosure is described in detail.
One exemplary embodiment of the disclosure provides a kind of method for preparing optical compensating film, and methods described includes
Following step：Mixture optical activity is that left-handed the first cholesteric liquid-crystal composition and mixture optical activity are the second cholesteric phase of dextrorotation
Liquid-crystal composition, and at room temperature by their uniform mixing, to form mixture, wherein, the first cholesteric liquid-crystal composition
Back wave position is identical with the back wave position of the second cholesteric liquid-crystal composition；Glass transition temperature is heated the mixture to, so
After cooled down；And ultraviolet radioactive is carried out to mixture, so as to form optical compensating film by solidifying.
In one embodiment, the first cholesteric liquid-crystal composition can include small molecule nematic crystal, photopolymerizable
Monomer, chiral siloxanes liquid crystal molecule and initiator, so that the optical activity of the first cholesteric liquid-crystal composition is left-handed.Here,
Chiral siloxanes liquid crystal molecule can make the optical activity of the first cholesteric liquid-crystal composition be left-handed.
If the first cholesteric liquid-crystal composition can include small molecule nematic crystal, photopolymerizable monomer, chiral silicon
Oxygen alkane liquid crystal molecule and initiator, the then gross weight based on the first cholesteric liquid-crystal composition, the first cholesteric liquid-crystal composition
Small molecule nematic crystal, the photopolymerizable list of 5 weight of weight % to 35 % of 20 weight of weight % to 80.9 % can be included
The initiator of body, the chiral siloxanes liquid crystal molecule of 14 weight of weight % to 44 % and 0.1 weight of weight % to 1 %.However,
The content of the various components that the first cholesteric liquid-crystal composition includes is not only restricted to this, as long as the first cholesteric liquid crystal can be made
The optical activity of composition is left-handed.
In another embodiment, the first cholesteric liquid-crystal composition can include small molecule nematic crystal, photopolymerizable
Monomer, siloxanes liquid crystal molecule, the first chiral additives and initiator, so that the optical activity of the first cholesteric liquid-crystal composition is
It is left-handed.Here, the first chiral additives can make the optical activity of the first cholesteric liquid-crystal composition be left-handed.
If the first cholesteric liquid-crystal composition includes small molecule nematic crystal, photopolymerizable monomer, siloxanes liquid crystal
Molecule, the first chiral additives and initiator, the then gross weight based on the first cholesteric liquid-crystal composition, the first cholesteric liquid crystal
Composition can include the small molecule nematic crystal of 20 weight of weight % to 80.9 %, the light of 5 weight of weight % to 28 % can
Polymerized monomer, the siloxanes liquid crystal molecule of 10 weight of weight % to 31 %, first chiral additives of 4 weight of weight % to 20 %
With the initiator of 0.1 weight of weight % to 1 %.However, the various components that include in the first cholesteric liquid-crystal composition contain
Amount is not only restricted to this, as long as the optical activity that can make the first cholesteric liquid-crystal composition is left-handed.
In another embodiment, the first cholesteric liquid-crystal composition can include small molecule nematic crystal, photopolymerizable
Monomer, chiral siloxanes liquid crystal molecule, the first chiral additives and initiator, so that the optically-active of the first cholesteric liquid-crystal composition
Property for left-handed.Here, chiral siloxanes liquid crystal molecule and the first chiral additives can make the first cholesteric liquid-crystal composition
Optical activity is left-handed.
If the first cholesteric liquid-crystal composition includes small molecule nematic crystal, photopolymerizable monomer, chiral siloxanes
Liquid crystal molecule, the first chiral additives and initiator, the then gross weight based on the first cholesteric liquid-crystal composition, the first cholesteric phase
Liquid-crystal composition can include the small molecule nematic crystal of 20 weight of weight % to 80.9 %, 5 weight of weight % to 28 %
Photopolymerizable monomer, the chiral siloxanes liquid crystal molecule of 10 weight of weight % to 31 %, 4 weight of weight % to 20 % it is first-hand
The initiator of property additive and 0.1 weight of weight % to 1 %.However, the first cholesteric liquid-crystal composition include it is various
The content of component is not only restricted to this, as long as the optical activity that can make the first cholesteric liquid-crystal composition is left-handed.
In one embodiment, the second cholesteric liquid-crystal composition can include small molecule nematic crystal, photopolymerizable
Monomer, chiral siloxanes liquid crystal molecule and initiator, so that the optical activity of the second cholesteric liquid-crystal composition is dextrorotation.Here,
Chiral siloxanes liquid crystal molecule can make the optical activity of the second cholesteric liquid-crystal composition be dextrorotation.
If the second cholesteric liquid-crystal composition includes small molecule nematic crystal, photopolymerizable monomer, chiral siloxanes
Liquid crystal molecule and initiator, then the gross weight based on the second cholesteric liquid-crystal composition, the second cholesteric liquid-crystal composition can be with
Small molecule nematic crystal, the photopolymerizable monomer of 5~35 weight % including 20 weight of weight % to 80.9 %, 14~44 weights
Measure the chiral siloxanes liquid crystal molecule of % and the initiator of 0.1 weight of weight % to 1 %.However, in the second cholesteric liquid crystal group
The content of the various components that compound includes is not only restricted to this, as long as the optical activity that can make the second cholesteric liquid-crystal composition is
Dextrorotation.
In another embodiment, the second cholesteric liquid-crystal composition can include small molecule nematic crystal, photopolymerizable
Monomer, siloxanes liquid crystal molecule, the second chiral additives and initiator, so that the optical activity of the first cholesteric liquid-crystal composition is
Dextrorotation.Here, the second chiral additives can make the optical activity of the first cholesteric liquid-crystal composition be dextrorotation.
If the second cholesteric liquid-crystal composition includes small molecule nematic crystal, photopolymerizable monomer, siloxanes liquid crystal
Molecule, the second chiral additives and initiator, the then gross weight based on the second cholesteric liquid-crystal composition, the second cholesteric liquid crystal
Composition can include the small molecule nematic crystal of 20 weight of weight % to 80.9 %, the light of 5 weight of weight % to 28 % can
Polymerized monomer, the siloxanes liquid crystal molecule of 10 weight of weight % to 31 %, second chiral additives of 4 weight of weight % to 20 %
With the initiator of 0.1 weight of weight % to 1 %.However, the various components that include in the second cholesteric liquid-crystal composition contain
Amount is not only restricted to this, as long as the optical activity that can make the second cholesteric liquid-crystal composition is dextrorotation.
In another embodiment, the second cholesteric liquid-crystal composition can include small molecule nematic crystal, photopolymerizable
Monomer, chiral siloxanes liquid crystal molecule, the first chiral additives and initiator, so that the optically-active of the second cholesteric liquid-crystal composition
Property is dextrorotation.Here, chiral siloxanes liquid crystal molecule and the first chiral additives can make the second cholesteric liquid-crystal composition
Optical activity be dextrorotation.
If the second cholesteric liquid-crystal composition includes small molecule nematic crystal, photopolymerizable monomer, chiral siloxanes
Liquid crystal molecule, the second chiral additives and initiator, the then gross weight based on the second cholesteric liquid-crystal composition, the second cholesteric phase
Liquid-crystal composition can include the small molecule nematic crystal of 20 weight of weight % to 80.9 %, 5 weight of weight % to 28 %
Photopolymerizable monomer, the chiral siloxanes liquid crystal molecule of 10 weight of weight % to 31 %, the second-hand of 4 weight of weight % to 20 %
The initiator of property additive and 0.1 weight of weight % to 1 %.The various components included in the second cholesteric liquid-crystal composition
Content is not only restricted to this, as long as the optical activity that can make the second cholesteric liquid-crystal composition is dextrorotation.
In one embodiment, when mixed uniformly step is performed, hot polymerization inhibitor can be added.
In one embodiment, small molecule nematic crystal used herein can be SLC1717, but not limited to this.
In one embodiment, photopolymerizable monomer used herein can be selected from following compounds, but not limited to this：
In one embodiment, siloxanes liquid crystal molecule used herein can have following structures, but not limited to this：
In one embodiment, chiral siloxanes liquid crystal molecule used herein can have following structures, but be not limited to
This：
In one embodiment, chiral additives (the first or second chiral additives) used herein can be selected from tool
There are the material of following structures, but not limited to this：
In one embodiment, initiator used herein can be following substances, but not limited to this：
In one embodiment, hot polymerization inhibitor used herein can be following substances, big not limited to this：
It should be appreciated that given above on small molecule nematic crystal, photopolymerizable monomer, siloxanes liquid crystal point
The selected species of son, chiral siloxanes liquid crystal molecule, the first chiral additives, initiator and hot polymerization inhibitor are only example, this public affairs
Open and be not limited to this.
Exemplary description is carried out below in conjunction with the specific example method for preparing optical compensating film of this disclosure.
Example 1
First, mixture optical activity is that left-handed the first cholesteric liquid-crystal composition and mixture optical activity are the second courage of dextrorotation
Steroid phase liquid-crystal composition, and at room temperature by their uniform mixing, to form mixture.
In this example, the first cholesteric liquid-crystal composition includes small molecule nematic crystal, the 9 weight % of 73 weight %
Photopolymerizable monomer (as follows), the chiral siloxanes liquid crystal molecule and 0.5 weight with left-handed property of 17.5 weight %
The light trigger of % is measured, so that the optical activity of the first cholesteric liquid-crystal composition is left-handed.
Photopolymerizable monomer
Additionally, except the chiral silicon with dextrorotation property including 17.5 weight % in the second cholesteric liquid-crystal composition
Oxygen alkane liquid crystal molecule so that the optical activity of the second cholesteric liquid-crystal composition is for outside dextrorotation, other components and the first cholesteric phase liquid
It is identical in crystal composite.
Now, the back wave position phase of the back wave position of the first cholesteric liquid-crystal composition and the second cholesteric liquid-crystal composition
Together, it is 595nm.When mixed uniformly step is performed, appropriate hot polymerization inhibitor can be added.
Next, the mixture of the first cholesteric liquid-crystal composition and the second cholesteric liquid-crystal composition is placed in into thermal station
On, control thermal station temperature reaches 45 DEG C of glass transition temperature, and performs rolling orientation.Then by being quickly cooled to vitrifying
Below transition temperature, and the grappling effect for passing through macromolecule network, it is consequently formed film.
Then, ultraviolet radioactive is carried out to mixture so that the polymerisable monomer in mixture is polymerized, so that by solid
It is the optical compensating film of 595nm that change is fixed ripple position.
By using this optical compensating film, chromaticity coordinates is from [R (0.653,0.334), G (0.288,0.637), B
(0.151,0.069)] it is changed into [R (0.674,0.304), G (0.252,0.659), B (0.151,0.069)], colour gamut SRGB (faces
Product ratio) lifted to 127.1% from 111%.
Example 2
First, mixture optical activity is that left-handed the first cholesteric liquid-crystal composition and mixture optical activity are the second courage of dextrorotation
Steroid phase liquid-crystal composition, and at room temperature by their uniform mixing, to form mixture.
In this example, the first cholesteric liquid-crystal composition includes small molecule nematic crystal, 10 weights of 69.3 weight %
Measure the photopolymerizable monomer (as follows) of %, the siloxanes liquid crystal molecule of 11 weight %, 9 weight % with left-handed property
Chiral additives (its structure is as follows) as the first chiral additives and the light trigger of 0.7 weight % so that the first courage
The optical activity of steroid phase liquid-crystal composition is left-handed.
Photopolymerizable monomer
Chiral additives
Additionally, except the said structure with dextrorotation property including 9 weight % in the second cholesteric liquid-crystal composition
Chiral additives as the second chiral additives so that the optical activity of the second cholesteric liquid-crystal composition be dextrorotation outside, other
Component is identical with the first cholesteric liquid-crystal composition.
Subsequent step is similar with the subsequent step in example 1, is derived from optical compensating film.
By using this optical compensating film, chromaticity coordinates [R (0.653,0.334), G (0.288,0.637), B (0.151,
0.069)] be changed into [R (0.664,0.29), G (0.25,0.635), B (0.151,0.069)], colour gamut SRGB (area ratio) from
111% is lifted to 119.8%..
Example 3
First, mixture optical activity is that left-handed the first cholesteric liquid-crystal composition and mixture optical activity are the second courage of dextrorotation
Steroid phase liquid-crystal composition, and at room temperature by their uniform mixing, to form mixture.
In this example, the first cholesteric liquid-crystal composition includes small molecule nematic crystal, 8 weights of 74.5 weight %
Measure photopolymerizable monomer (as follows), chiral siloxanes liquid crystal molecule, 5 weights with left-handed property of 12 weight % of %
The chiral additives (its structure is as follows) with left-handed property of % is measured as the first chiral additives and 0.5 weight %
Light trigger, so that the optical activity of the first cholesteric liquid-crystal composition is left-handed.
Photopolymerizable monomer
Chiral additives
Additionally, except the chiral silica with dextrorotation property including 12 weight % in the second cholesteric liquid-crystal composition
The chiral additives (its structure is as implied above) with dextrorotation property of alkane liquid crystal molecule and 5 weight % is used as the second chiral addition
Agent so that the optical activity of the second cholesteric liquid-crystal composition is for outside dextrorotation, in other components and the first cholesteric liquid-crystal composition
It is identical.
Subsequent step is similar with the subsequent step in example 1, is derived from optical compensating film.
By using this optical compensating film, chromaticity coordinates [R (0.653,0.334), G (0.288,0.637), B (0.151,
0.069)] be changed into [R (0.670,0.302), G (0.259,0.656), B (0.151,0.069)], colour gamut SRGB (area ratio) from
111% is lifted to 124.7%.
Example 4
First, mixture optical activity is that left-handed the first cholesteric liquid-crystal composition and mixture optical activity are the second courage of dextrorotation
Steroid phase liquid-crystal composition, and at room temperature by their uniform mixing, to form mixture.
In this example, the first cholesteric liquid-crystal composition includes small molecule nematic crystal, 9 weights of 72.4 weight %
Measure photopolymerizable monomer (as follows), the siloxanes liquid crystal molecule of 8 weight %, 10% chirality with left-handed property of %
Additive (its structure is as follows) as the first chiral additives and the light trigger of 0.6 weight % so that the first cholesteric phase
The optical activity of liquid-crystal composition is left-handed.
Photopolymerizable monomer
Chiral additives
Additionally, except the chiral addition with dextrorotation property including 10 weight % in the second cholesteric liquid-crystal composition
Agent as the second chiral additives so that the optical activity of the second cholesteric liquid-crystal composition be dextrorotation outside, other components and first
It is identical in cholesteric liquid-crystal composition.
Subsequent step is similar with the subsequent step in example 1, is derived from optical compensating film.
By using this optical compensating film, chromaticity coordinates [R (0.653,0.334), G (0.288,0.637), B (0.151,
0.069)] be changed into [R (0.667,0.3), G (0.253,0.650), B (0.151,0.069)], colour gamut SRGB (area ratio) from
111% is lifted to 123.3%.
In addition, it is necessary to explanation, can be by the first cholesteric liquid-crystal composition in an example in above-mentioned example
It is combined to prepare optical compensating film with the second cholesteric liquid-crystal composition in another example, this can equally produce class
As technique effect.
In the disclosure, for improving the optical compensating film of colour gamut mainly using mixture with the identical of opposite rotation direction
Prepared by two kinds of liquid crystal material of cholesteric phase of back wave position, and use the material with high glass-transition temperature and high crystallization temperature
Expect to ensure that material is at room temperature crystalline state.At room temperature, it is the solid state powder of above two liquid crystal material of cholesteric phase is uniform
Mixing, is then heated to its cholesteric phase temperature, the total reflection film by being fixed ripple position after uv photopolymerization.
Optical compensating film produced above lifts the colour gamut of liquid crystal display by improving the trichromatic excitations of RGB.
In addition, the transmitted wave position in the disclosure can be adjusted according to the situation of actual color film and backlight, in the preparation of the disclosure
It is involved in method to prepare material source extensively, process is simple, in can be widely applied to actual production.
Additionally, the optical compensating film according to prepared by the disclosure can according to actual needs be applied to liquid crystal layer and TFT
Between substrate of glass, between liquid crystal layer and colour filter (CF) substrate of glass, on the side back to liquid crystal layer of TFT substrate of glass with
And the side back to liquid crystal layer of CF substrate of glass is first-class.
According to another aspect of the present disclosure, there is provided a kind of optical compensating film, the optical compensating film is by above
Prepared by the method for preparing optical compensating film of description.
The disclosure additionally provides a kind of optical compensating film, and the optical compensating film is to prepare optics by described above
Prepared by the method for compensation film.
Have been presented for the description before certain exemplary embodiments of this disclosure.These exemplary embodiments are not
Be intended that exhaustive or the disclosure is confined to disclosed precise forms, and it is evident that opening in teachings above
Under showing, those of ordinary skill in the art can make many modifications and variations.Therefore, the scope of the present disclosure is not intended to be limited to
Foregoing embodiment, but is intended to being limited by claim and their equivalent.
Claims (10)
1. a kind of method for preparing optical compensating film, it is characterised in that methods described comprises the steps：
Mixture optical activity is that left-handed the first cholesteric liquid-crystal composition and mixture optical activity are the second cholesteric liquid crystal of dextrorotation
Composition, and at room temperature by their uniform mixing, to form mixture, wherein, the reflection of the first cholesteric liquid-crystal composition
Ripple position is identical with the back wave position of the second cholesteric liquid-crystal composition；
The mixture is heated to glass transition temperature, is then cooled down；And
Ultraviolet radioactive is carried out to the mixture, so as to form optical compensating film by solidifying.
2. the method for preparing optical compensating film according to claim 1, it is characterised in that first cholesteric liquid crystal
Composition includes small molecule nematic crystal, photopolymerizable monomer, chiral siloxanes liquid crystal molecule and initiator, so that described the
The optical activity of one cholesteric liquid-crystal composition is left-handed.
3. the method for preparing optical compensating film according to claim 1, it is characterised in that first cholesteric liquid crystal
Composition includes small molecule nematic crystal, photopolymerizable monomer, siloxanes liquid crystal molecule, the first chiral additives and initiation
Agent, so that the optical activity of first cholesteric liquid-crystal composition is left-handed.
4. the method for preparing optical compensating film according to claim 1, it is characterised in that first cholesteric liquid crystal
Composition includes small molecule nematic crystal, photopolymerizable monomer, chiral siloxanes liquid crystal molecule, the first chiral additives and draws
Hair agent, so that the optical activity of first cholesteric liquid-crystal composition is left-handed.
5. according to the method for preparing optical compensating film that any one of Claims 1-4 is described, it is characterised in that described
Second cholesteric liquid-crystal composition includes small molecule nematic crystal, photopolymerizable monomer, chiral siloxanes liquid crystal molecule and draws
Hair agent, so that the optical activity of second cholesteric liquid-crystal composition is dextrorotation.
6. according to the method for preparing optical compensating film that any one of Claims 1-4 is described, it is characterised in that described
Second cholesteric liquid-crystal composition includes small molecule nematic crystal, photopolymerizable monomer, siloxanes liquid crystal molecule, the second chirality
Additive and initiator, so that the optical activity of second cholesteric liquid-crystal composition is dextrorotation.
7. according to the method for preparing optical compensating film that any one of Claims 1-4 is described, it is characterised in that described
Second cholesteric liquid-crystal composition includes small molecule nematic crystal, photopolymerizable monomer, chiral siloxanes liquid crystal molecule, second
Chiral additives and initiator, so that the optical activity of second cholesteric liquid-crystal composition is dextrorotation.
8. the method for preparing optical compensating film according to claim 1, it is characterised in that performing mixed uniformly step
When rapid, hot polymerization inhibitor is added.
9. the method for preparing optical compensating film according to claim 1, it is characterised in that first cholesteric liquid crystal
Composition includes small molecule nematic crystal, photopolymerizable monomer, chiral siloxanes liquid crystal molecule and initiator, so that described the
The optical activity of one cholesteric liquid-crystal composition for left-handed, based on the gross weight of first cholesteric liquid-crystal composition, described the
One cholesteric liquid-crystal composition includes small molecule nematic crystal, 5 weights of weight % to 35 of 20 weight of weight % to 80.9 %
Measure photopolymerizable monomer, the chiral siloxanes liquid crystal molecule of 14 weight of weight % to 44 % and 0.1 weight of weight % to 1 % of %
Initiator, and
Second cholesteric liquid-crystal composition includes small molecule nematic crystal, photopolymerizable monomer, chiral siloxanes liquid crystal
Molecule and initiator, so that the optical activity of second cholesteric liquid-crystal composition is dextrorotation, based on the second cholesteric phase liquid
The gross weight of crystal composite, second cholesteric liquid-crystal composition includes the small molecule nematic of 20 weight of weight % to 80.9 %
Type liquid crystal, the photopolymerizable monomer of 5 weight of weight % to 35 %, the chiral siloxanes liquid crystal molecule of 14 weight of weight % to 44 %
With the initiator of 0.1 weight of weight % to 1 %.
10. a kind of optical compensating film, the optical compensating film is according to the described system of any one of claim 1 to 9
Prepared by the method for standby optical compensating film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710127996.6A CN106886103A (en) | 2017-03-06 | 2017-03-06 | Optical compensating film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710127996.6A CN106886103A (en) | 2017-03-06 | 2017-03-06 | Optical compensating film and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106886103A true CN106886103A (en) | 2017-06-23 |
Family
ID=59180385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710127996.6A Pending CN106886103A (en) | 2017-03-06 | 2017-03-06 | Optical compensating film and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106886103A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111429792A (en) * | 2020-04-27 | 2020-07-17 | 北京智慧港教育咨询有限公司 | Preparation method of block chain anti-counterfeiting traceability polymer liquid crystal optical film |
| CN113589573A (en) * | 2021-06-25 | 2021-11-02 | 北京化工大学 | Intelligent liquid crystal dimming film capable of sensing ambient light change |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4423927A (en) * | 1981-09-22 | 1984-01-03 | The United States Of America As Represented By The Secretary Of The Army | Optical, temporal bandpass filter |
| CN1196798A (en) * | 1996-04-22 | 1998-10-21 | 日东电工株式会社 | Circular-dichroism optical element, device thereof and liquid crystal polymer |
| JP2000273421A (en) * | 1999-03-29 | 2000-10-03 | Dainippon Ink & Chem Inc | Optical interference colorant adhesive film |
| TW201024883A (en) * | 2008-12-19 | 2010-07-01 | Ind Tech Res Inst | Cholesteric liquid crystal panel and liquid crystal composition thereof |
| CN104403677A (en) * | 2014-12-15 | 2015-03-11 | 京东方科技集团股份有限公司 | Liquid crystal mixture, patterning phase delay membrane and preparation method thereof, as well as display device |
| CN106054304A (en) * | 2016-08-19 | 2016-10-26 | 京东方科技集团股份有限公司 | Polarizing plate, manufacturing method thereof and corresponding device |
-
2017
- 2017-03-06 CN CN201710127996.6A patent/CN106886103A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4423927A (en) * | 1981-09-22 | 1984-01-03 | The United States Of America As Represented By The Secretary Of The Army | Optical, temporal bandpass filter |
| CN1196798A (en) * | 1996-04-22 | 1998-10-21 | 日东电工株式会社 | Circular-dichroism optical element, device thereof and liquid crystal polymer |
| JP2000273421A (en) * | 1999-03-29 | 2000-10-03 | Dainippon Ink & Chem Inc | Optical interference colorant adhesive film |
| TW201024883A (en) * | 2008-12-19 | 2010-07-01 | Ind Tech Res Inst | Cholesteric liquid crystal panel and liquid crystal composition thereof |
| CN104403677A (en) * | 2014-12-15 | 2015-03-11 | 京东方科技集团股份有限公司 | Liquid crystal mixture, patterning phase delay membrane and preparation method thereof, as well as display device |
| CN106054304A (en) * | 2016-08-19 | 2016-10-26 | 京东方科技集团股份有限公司 | Polarizing plate, manufacturing method thereof and corresponding device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111429792A (en) * | 2020-04-27 | 2020-07-17 | 北京智慧港教育咨询有限公司 | Preparation method of block chain anti-counterfeiting traceability polymer liquid crystal optical film |
| CN113589573A (en) * | 2021-06-25 | 2021-11-02 | 北京化工大学 | Intelligent liquid crystal dimming film capable of sensing ambient light change |
| CN113589573B (en) * | 2021-06-25 | 2024-01-16 | 北京化工大学 | Intelligent liquid crystal dimming film capable of sensing ambient light change |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105404046B (en) | The production method of quantum dot color membrane substrates | |
| CN103250091B (en) | Liquid crystal display substrate and liquid crystal indicator | |
| CN101225309B (en) | Polymerizable liquid crystal composition, optical device, method of manufacturing optical device, and liquid crystal display | |
| CN106646992B (en) | A kind of color membrane substrates, liquid crystal display panel, liquid crystal display device and preparation method thereof | |
| CN106886103A (en) | Optical compensating film and preparation method thereof | |
| TWI515265B (en) | Coloring composition for color filter and color filter | |
| CN108219736A (en) | Ultraviolet photo-curing cementing agent composition and application thereof | |
| CN110054741A (en) | The preparation method of dispersible pigment dispersion | |
| CN104364680B (en) | Colour filter and display device | |
| CN106019453B (en) | Composition, compound polaroid and production method and display base plate | |
| CN1982953A (en) | Method for adjusting display device white balance and liquid-crystal display device | |
| JP3837037B2 (en) | Coloring composition for color filter, resist composition, and color filter | |
| CN108508649B (en) | Chromaticity adjusting method of liquid crystal display device, liquid crystal display device and terminal equipment | |
| JP3311894B2 (en) | Color filter and color display method | |
| CN102081256B (en) | Color filter substrate for liquid crystal display devices and liquid crystal display devices | |
| JP3218635B2 (en) | Method for preparing liquid crystal composition | |
| TW200949310A (en) | Color filter and liquid crystal display device using the same | |
| WO2014190735A1 (en) | Alignment and planarisation material compositions, display device comprising same, and adjusting method for display colour | |
| JP5216256B2 (en) | Color filter and liquid crystal display device | |
| KR101289962B1 (en) | Liquid Crystal Display device | |
| JP2007279379A (en) | Color filter, method for manufacturing the same, and liquid crystal display | |
| CN109946923A (en) | Coloring photosensitive combination, colour filter and image display device | |
| CN108803238A (en) | Black matrix" composite material and preparation method | |
| JPH06289209A (en) | Color filter and liquid crystal display element | |
| JP2002071938A (en) | Color filter and liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170623 |
|
| RJ01 | Rejection of invention patent application after publication |