CN112852445A - Liquid crystal composition, liquid crystal display panel and preparation method thereof - Google Patents
Liquid crystal composition, liquid crystal display panel and preparation method thereof Download PDFInfo
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 103
- 239000000203 mixture Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000000178 monomer Substances 0.000 claims abstract description 61
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 239000011203 carbon fibre reinforced carbon Substances 0.000 claims abstract description 11
- 239000000758 substrate Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 13
- 125000001424 substituent group Chemical group 0.000 claims description 9
- 238000006467 substitution reaction Methods 0.000 claims description 9
- 125000005843 halogen group Chemical group 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000005286 illumination Methods 0.000 claims description 6
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 claims 1
- 238000006116 polymerization reaction Methods 0.000 abstract description 12
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 150000001491 aromatic compounds Chemical class 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 13
- 239000010408 film Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- 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
- C09K19/54—Additives having no specific mesophase characterised by their chemical composition
- C09K19/542—Macromolecular compounds
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- 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
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Abstract
The invention provides a liquid crystal composition, a liquid crystal display panel and a preparation method thereof, wherein the liquid crystal composition comprises liquid crystal molecules and polymerizable monomers, the polymerizable monomers comprise at least one aromatic compound with 3 carbon-carbon double bonds per molecule, namely, each molecule has 3 reaction sites, compared with the conventional polymerizable monomers which only have 2 carbon-carbon double bonds per molecule and are commonly used, the polymerizable monomers have higher polymerization rate, and when the polymerizable monomers are applied to the preparation of the liquid crystal display panel, the production efficiency can be improved.
Description
Technical Field
The application relates to the technical field of display, in particular to a liquid crystal composition, a liquid crystal display panel and a preparation method thereof.
Background
Thin film transistor-liquid crystal displays (TFT-LCDs) have been researched and developed for decades, have become the most mature display panel type in the current technology, and are widely used in various fields. In recent years, various liquid crystal displays have been developed, which have advantages of wide viewing angle, high contrast, and high image quality, and become an indispensable part of human life. Among them, the Polymer Stabilized Vertical Alignment (PSVA) LCD has the excellent characteristics of fast response, high contrast and high transmittance, and is widely applied to large-sized LCDs.
In the PSVA technology, a liquid crystal composition generally consists of a liquid crystal material and a polymerizable monomer that can undergo a polymerization reaction under ultraviolet light, and the polymerization rate of the polymerizable monomer determines the time of ultraviolet light irradiation, and in order to improve the production efficiency of a display panel, a polymerizable monomer with a faster polymerization rate still needs to be developed, particularly, a display panel is developed from 4K to 8K, so that the aperture opening ratio of the panel is reduced, the amount of received ultraviolet light is reduced, and in order not to increase the time of ultraviolet light irradiation, the structure of the polymerizable monomer needs to be optimally designed to meet the requirement of production capacity.
Disclosure of Invention
The invention provides a liquid crystal composition, a liquid crystal display panel and a preparation method thereof, wherein a polymerizable monomer in the liquid crystal composition has a faster polymerization rate.
In order to solve the above-mentioned problems, in a first aspect, the present invention provides a liquid crystal composition comprising liquid crystal molecules and polymerizable monomers including at least one first polymerizable monomer represented by the following formula (1):
wherein X, Y represents a halogen atom, a and b are each independently an integer of 0 to 4, a X's are the same or different, b Y's are the same or different, R is1And R2Each independently selected from substituents having a terminal carbon-carbon double bond, and the structure of Ar is represented by the following formula (a):
wherein e and f are each independently selected from integers of 0 to 5, and represent a substitution site.
Further, said R1And R2Each independently selected from the group consisting of substituents represented by the following formula (b) or formula (c):
wherein g and h are each independently selected from integers of 0 to 5, and represent a substitution site.
Further, the first polymerizable monomer is selected from at least one of the compounds represented by the following structural formula:
further, the polymerizable monomers further include at least one second polymerizable monomer represented by the following formula (2):
wherein X, Y represents a halogen atom, c and d are each independently selected from an integer of 0 to 4, c P's are the same or different, d Q's are the same or different, and R3And R4Each independently selected from the group consisting of substituents represented by the following formula (b) or formula (c):
wherein g and h are each independently selected from integers of 0 to 5, and represent a substitution site.
Further, the second polymerizable monomer is selected from at least one of the compounds represented by the following structural formula:
further, the content of the first polymerizable monomer is 500-1500ppm, and the content of the second polymerizable monomer is 1500-2500 ppm.
In a second aspect, the present invention provides a method for manufacturing a liquid crystal display panel, the method comprising the steps of:
s10: providing a first substrate, and sequentially forming a first electrode and a first alignment film on the first substrate;
s20: providing a second substrate, and sequentially forming a second electrode and a second alignment film on the second substrate;
s30: forming a liquid crystal layer on the first alignment film on the first substrate, and combining the second substrate and the first substrate into a cell, wherein the liquid crystal layer comprises the liquid crystal composition; and
and S40, carrying out ultraviolet irradiation on the liquid crystal layer to enable liquid crystal molecules in the liquid crystal layer to form a pre-tilt angle.
Further, the step S40 includes:
s401, applying voltage to the first electrode and the second electrode, and performing first ultraviolet illumination on the liquid crystal layer to enable liquid crystal molecules in the liquid crystal layer to form a pre-tilt angle; and
and S402, carrying out second ultraviolet irradiation on the liquid crystal layer to enable the residual unreacted polymerizable monomer to react.
Further, the first ultraviolet irradiation condition comprises using a wavelength of 200-400nm and an irradiation intensity of 0.4-0.6mW/cm2The second ultraviolet irradiation comprises the use of a wavelength of 200-400nm and an irradiation intensity of 0.2-0.4mW/cm2Is irradiated for 70-120 minutes.
In a third aspect, the invention provides a liquid crystal display panel prepared by the above method for preparing a liquid crystal display panel.
Has the advantages that: the invention provides a liquid crystal composition, a liquid crystal display panel and a preparation method thereof, wherein the liquid crystal composition contains a polymerizable monomer with 3 carbon-carbon double bonds per molecule, namely 3 reaction sites per molecule, and compared with the conventional polymerizable monomer with only 2 carbon-carbon double bonds per molecule, the polymerizable monomer has higher polymerization rate, and the production efficiency can be improved when the polymerizable monomer is applied to the preparation of the liquid crystal display panel.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a graph showing the results of a voltage holding ratio test of a liquid crystal composition according to an embodiment of the present invention;
FIG. 2 is a graph showing the results of an on-state current test of a liquid crystal composition according to an embodiment of the present invention;
FIGS. 3A-3C are schematic structural flow charts illustrating a method for fabricating a liquid crystal display panel according to an embodiment of the present invention;
fig. 4 is a schematic text flow chart of a method for manufacturing a liquid crystal display panel according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes are not shown in detail to avoid obscuring the description of the invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
An embodiment of the present invention provides a liquid crystal composition, including liquid crystal molecules and polymerizable monomers, where the polymerizable monomers include at least one first polymerizable monomer represented by the following formula (1):
wherein X, Y represents a halogen atom, preferably X, Y represents a fluorine atom or a chlorine atom, a and b are each independently an integer of 0 to 4, a X's are the same or different, b Y's are the same or different, R is1And R2Each independently selected from the group consisting of substituents containing a carbon-carbon double bond at the endAnd Ar has a structure represented by the following formula (a):
wherein e and f are each independently selected from integers of 0 to 5, and represent a substitution site.
It is understood that in the above formula (a), when e is 0, the groups at both ends are connected by a single bond, and when f is 0, the same applies, and similar cases are included in other formulae.
The first polymerizable monomer in the liquid crystal composition comprises three carbon-carbon double bonds per molecule, namely, each molecule has three sites capable of generating polymerization reaction, compared with the conventional polymerizable monomer with only 2 carbon-carbon double bonds per molecule, the polymerizable monomer has higher polymerization rate, and when the polymerizable monomer is applied to the preparation of a liquid crystal display panel, the production efficiency can be improved.
In some embodiments, the R is1And R2Each independently selected from the group consisting of substituents represented by the following formula (b) or formula (c):
wherein g and h are each independently selected from integers of 0 to 5, and represent a substitution site.
In some embodiments, the second polymerizable monomer is selected from at least one of the compounds represented by the following structural formula:
in some embodiments, in order to further avoid the situation that the display is poor due to excessive polymerization caused by too fast polymerization reaction rate, a part of the polymerizable monomers having only 2 carbon-carbon double bonds per molecule are further doped in the liquid crystal composition, and specifically, the polymerizable monomers further include at least one second polymerizable monomer represented by the following formula (2):
wherein P, Q represents a halogen atom, c and d are each independently selected from an integer of 0 to 4, c P's are the same or different, d Q's are the same or different, and R3And R4Each independently selected from the group consisting of substituents represented by the following formula (b) or formula (c):
wherein g and h are each independently selected from integers of 0 to 5, and represent a substitution site.
In some embodiments, the second polymerizable monomer is selected from at least one of the compounds represented by the following structural formula:
in some embodiments, the content of the first polymerizable monomer is 500-1500ppm, and the content of the second polymerizable monomer is 1500-2500ppm, and it should be added that, in the present invention, the content is calculated by weight, it is understood that, in the above-mentioned type of the first polymerizable monomer and the second polymerizable monomer, the reaction rate has a slight difference depending on the number of carbon atoms or the number of halogen substituents, and the content of the first polymerizable monomer and the second polymerizable monomer is reasonably set according to the structure of the actually selected polymerizable monomer to meet the process requirements.
Specific examples are given below for further illustration:
providing a liquid crystal composition a comprising liquid crystal molecules and a polymerizable monomer represented by the following formula A (content of 3000 ppm);
a liquid crystal composition B comprising liquid crystal molecules, a polymerizable monomer represented by the above formula A (content of 2000ppm) and a polymerizable monomer represented by the following formula B (content of 1000ppm) is provided.
Dripping the liquid crystal composition a/b into a test box respectively to manufacture a liquid crystal test box with the box thickness of 3.3um, namely the liquid crystal test box a/b;
the prepared liquid crystal test box is subjected to first ultraviolet irradiation (UV1) under the conditions that: applying voltage of 19V, temperature of 40 ℃, and illumination intensity of 0.52mW/cm2Ultraviolet light with the wavelength of 313nm is subjected to a pretilt angle test of liquid crystal molecules at 50/100/150s respectively, and the results are shown in Table 1:
TABLE 1
And performing second ultraviolet irradiation (UV1) on the liquid crystal test box subjected to the first ultraviolet irradiation (UV1) under the conditions that: the temperature is 25 ℃, and the illumination intensity is 0.27mW/cm2Ultraviolet wavelength 313nm for 120 minutes, for the aboveThe liquid crystal testing cell of (1) performs a Voltage Holding Ratio (VHR) and an on-state current (Ion) before UV1, after UV1(100s) and after UV2(120min), respectively, and the results are shown in fig. 1 and fig. 2;
meanwhile, for the liquid crystal test cell b prepared from the above liquid crystal composition b, VHR was also tested at different times in the UV2 process, and the results are shown in table 2:
TABLE 2
From the above test results, it can be seen that the liquid crystal composition added with the polymerizable monomer represented by formula B can form a larger pretilt angle under the same illumination condition, i.e., the time taken to form the target pretilt angle is shorter, and the liquid crystal composition has higher production efficiency when used for preparing a display panel.
Meanwhile, compared with the liquid crystal composition without the addition of the polymerizable monomer represented by the formula B, the VHR after UV2 is equivalent to Ion level, namely, the related performance of the liquid crystal panel is not influenced.
Although the liquid crystal test box B has the phenomenon of VHR reduction and Ion surge after UV1, after UV2, the liquid crystal test box B returns to a normal level, and analysis shows that the phenomenon is caused because carbon-carbon double bonds in polymerizable monomers are broken under the illumination condition, that is, as shown in the following formula, the newly added polymerizable monomer represented by the formula B has a high reaction speed and a large number of broken bonds, the polymerization reaction is incomplete after UV1, the Ion content is increased, and VHR is higher and Ion is lower, but as UV2 progresses, the polymerization reaction is gradually completed, and the phenomenon disappears.
In another embodiment of the present invention, a method for manufacturing a liquid crystal display panel is provided, please refer to the flow diagrams provided in fig. 3A-3C and fig. 4, and the method includes the following steps:
s10: sequentially forming a first electrode 101 and a first alignment film 102 on a first substrate 10, wherein the first substrate 10 may be generally an array substrate, the first electrode 101 may be generally a transparent electrode, and the material of the transparent electrode may be generally indium tin oxide;
s20: forming a second electrode 201 and a second alignment film 202 on a second substrate 20 in sequence, wherein the second substrate 20 may be a color film substrate, the second electrode 201 may be a transparent electrode, the material of the transparent electrode may be ito, and the first alignment film 102 and the second alignment film 202 enable liquid crystal molecules to be arranged vertically to the first substrate 10 and the second substrate 20 when not energized;
s30: forming a liquid crystal layer 30 on the first alignment film 102 on the first substrate 10, and combining the second substrate 20 and the first substrate 10 into a cell, that is, forming a structure as shown in fig. 3A, wherein the liquid crystal layer includes the liquid crystal composition provided in the above embodiment; and
s40, as shown in fig. 3B, performing ultraviolet irradiation on the liquid crystal layer 30 to form a pre-tilt angle on the liquid crystal molecules 301 in the liquid crystal layer 30, and polymerizing the polymerizable monomers 302 under the irradiation of the ultraviolet light to form the first polymer layers 103 on the first alignment films 102 and the second polymer layers 203 on the second alignment films 202, respectively, i.e., to form the structure shown in fig. 3C.
In some embodiments, the step S40 includes:
s401, applying voltage to the first electrode 101 and the second electrode 201, and performing first ultraviolet irradiation on the liquid crystal layer to enable liquid crystal molecules 301 in the liquid crystal layer 30 to form a pretilt angle; and
and S402, carrying out second ultraviolet irradiation on the liquid crystal layer 30 to enable the residual unreacted polymerizable monomer to react.
Further, the first ultraviolet irradiation condition comprises using a wavelength of 200-400nm and an irradiation intensity of 0.4-0.6mW/cm2The second ultraviolet irradiation comprises the use of a wavelength of 200-400nm and the irradiation intensity0.2-0.4mW/cm2Is irradiated for 70-120 minutes.
The invention further provides a liquid crystal display panel prepared by the preparation method of the liquid crystal display panel.
It should be noted that, in the above-mentioned embodiment of the liquid crystal display panel, only the above-mentioned structure is described, and it is understood that any other necessary structure may be included as needed besides the above-mentioned structure, and the specific structure is not limited herein.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and parts that are not described in detail in a certain embodiment may refer to the above detailed descriptions of other embodiments, and are not described herein again.
The liquid crystal composition, the liquid crystal display panel and the preparation method thereof provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by applying specific examples, and the description of the above embodiments is only used to help understanding the method and the core concept of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A liquid crystal composition comprising liquid crystal molecules and polymerizable monomers, the polymerizable monomers comprising at least one first polymerizable monomer represented by the following formula (1):
wherein X, Y represents a halogen atom, a and b are each independently an integer of 0 to 4, a X's are the same or different, b Y's are the same or different, R is1And R2Each independently selected from substituents having a terminal carbon-carbon double bond, and the structure of Ar is represented by the following formula (a):
wherein e and f are each independently selected from integers of 0 to 5, and represent a substitution site.
2. The liquid crystal composition of claim 1, wherein R is1And R2Each independently selected from the group consisting of substituents represented by the following formula (b) or formula (c):
wherein g and h are each independently selected from integers of 0 to 5, and represent a substitution site.
3. The liquid crystal composition of claim 2, wherein the first polymerizable monomer is selected from at least one of the compounds represented by the following structural formula:
4. the liquid crystal composition of claim 1, wherein the polymerizable monomer further comprises at least one second polymerizable monomer represented by the following formula (2):
wherein X, Y represents a halogen atom, c and d are each independently selected from an integer of 0 to 4, c P's are the same or different, d Q's are the same or different, and R3And R4Each independently selected from the group consisting of substituents represented by the following formula (b) or formula (c):
wherein g and h are each independently selected from integers of 0 to 5, and represent a substitution site.
5. The liquid crystal composition of claim 4, wherein the second polymerizable monomer is selected from at least one of the compounds represented by the following structural formula:
6. the liquid crystal composition of claim 4 or 5, wherein the content of the first polymerizable monomer is 500-1500ppm, and the content of the second polymerizable monomer is 1500-2500 ppm.
7. The preparation method of the liquid crystal display panel is characterized by comprising the following steps:
s10: providing a first substrate, and sequentially forming a first electrode and a first alignment film on the first substrate;
s20: providing a second substrate, and sequentially forming a second electrode and a second alignment film on the second substrate;
s30: forming a liquid crystal layer on the first alignment film on the first substrate and assembling the second substrate and the first substrate pair into a cell, wherein the liquid crystal layer comprises the liquid crystal composition according to any one of claims 1 to 6; and
and S40, carrying out ultraviolet irradiation on the liquid crystal layer to enable liquid crystal molecules in the liquid crystal layer to form a pre-tilt angle.
8. The method for manufacturing a liquid crystal display panel according to claim 7, wherein the step S40 includes:
s401, applying voltage to the first electrode and the second electrode, and performing first ultraviolet illumination on the liquid crystal layer to enable liquid crystal molecules in the liquid crystal layer to form a pre-tilt angle; and
and S402, carrying out second ultraviolet irradiation on the liquid crystal layer to enable the residual unreacted polymerizable monomer to react.
9. The method as claimed in claim 8, wherein the first UV irradiation conditions comprise a wavelength of 200-400nm and an irradiation intensity of 0.4-0.6mW/cm2The second ultraviolet irradiation comprises the use of a wavelength of 200-400nm and an irradiation intensity of 0.2-0.4mW/cm2Is irradiated for 70-120 minutes.
10. A liquid crystal display panel produced by the method for producing a liquid crystal display panel according to any one of claims 7 to 9.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05125115A (en) * | 1991-11-01 | 1993-05-21 | Nippon Oil & Fats Co Ltd | Optical resin having high refractive index |
| TW201127847A (en) * | 2009-09-18 | 2011-08-16 | Merck Patent Gmbh | Polymerisable compounds and liquid-crystal media |
| US20130119311A1 (en) * | 2010-07-22 | 2013-05-16 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Polymer-stabilised liquid-crystal media and displays |
| JP2014237596A (en) * | 2013-06-06 | 2014-12-18 | Jnc株式会社 | Liquid crystal compound, liquid crystal composition and polymer thereof |
| CN105315157A (en) * | 2014-07-30 | 2016-02-10 | 默克专利股份有限公司 | Polymerisable compounds and use thereof in liquid-crystal displays |
| CN111574405A (en) * | 2020-06-11 | 2020-08-25 | 烟台显华化工科技有限公司 | Diene negative liquid crystal compound and preparation method and application thereof |
| CN111971368A (en) * | 2018-04-23 | 2020-11-20 | 默克专利股份有限公司 | Liquid crystal mixture and liquid crystal display |
-
2021
- 2021-01-08 CN CN202110023438.1A patent/CN112852445A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05125115A (en) * | 1991-11-01 | 1993-05-21 | Nippon Oil & Fats Co Ltd | Optical resin having high refractive index |
| TW201127847A (en) * | 2009-09-18 | 2011-08-16 | Merck Patent Gmbh | Polymerisable compounds and liquid-crystal media |
| US20130119311A1 (en) * | 2010-07-22 | 2013-05-16 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Polymer-stabilised liquid-crystal media and displays |
| JP2014237596A (en) * | 2013-06-06 | 2014-12-18 | Jnc株式会社 | Liquid crystal compound, liquid crystal composition and polymer thereof |
| CN105315157A (en) * | 2014-07-30 | 2016-02-10 | 默克专利股份有限公司 | Polymerisable compounds and use thereof in liquid-crystal displays |
| CN111971368A (en) * | 2018-04-23 | 2020-11-20 | 默克专利股份有限公司 | Liquid crystal mixture and liquid crystal display |
| CN111574405A (en) * | 2020-06-11 | 2020-08-25 | 烟台显华化工科技有限公司 | Diene negative liquid crystal compound and preparation method and application thereof |
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