WO2013170500A1 - 具有柔性结构的液晶分子及其混合物 - Google Patents

具有柔性结构的液晶分子及其混合物 Download PDF

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WO2013170500A1
WO2013170500A1 PCT/CN2012/076142 CN2012076142W WO2013170500A1 WO 2013170500 A1 WO2013170500 A1 WO 2013170500A1 CN 2012076142 W CN2012076142 W CN 2012076142W WO 2013170500 A1 WO2013170500 A1 WO 2013170500A1
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liquid crystal
formula
flexible structure
cyclohexane
crystal molecule
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French (fr)
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谢忠憬
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深圳市华星光电技术有限公司
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Priority to US13/642,507 priority Critical patent/US20130341565A1/en
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    • C09K19/08Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/30Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
    • C09K19/3001Cyclohexane rings
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    • C09K19/08Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/10Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
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    • C09K19/30Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
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    • C09K2019/0448Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group the end chain group being a polymerizable end group, e.g. -Sp-P or acrylate
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    • C09K19/10Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
    • C09K19/12Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
    • C09K2019/121Compounds containing phenylene-1,4-diyl (-Ph-)
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    • C09K19/00Liquid crystal materials
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    • C09K19/30Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
    • C09K19/3001Cyclohexane rings
    • C09K19/3003Compounds containing at least two rings in which the different rings are directly linked (covalent bond)
    • C09K2019/301Cy-Cy-Ph
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    • C09K19/00Liquid crystal materials
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    • C09K19/06Non-steroidal liquid crystal compounds
    • C09K19/08Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/30Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
    • C09K19/3001Cyclohexane rings
    • C09K19/3028Cyclohexane rings in which at least two rings are linked by a carbon chain containing carbon to carbon single bonds
    • C09K2019/3036Cy-C2H4-Ph
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    • C09K19/08Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/30Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
    • C09K19/3001Cyclohexane rings
    • C09K19/3028Cyclohexane rings in which at least two rings are linked by a carbon chain containing carbon to carbon single bonds
    • C09K2019/3037Cy-Cy-C2H4-Ph
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/0009Materials therefor
    • G02F1/0045Liquid crystals characterised by their physical properties

Definitions

  • the invention relates to a liquid crystal layer of a liquid crystal panel, in particular to a flexible structure (Flexible) Liquid crystal molecules and mixtures thereof, which improve the problem of dropping mura in a liquid crystal screen.
  • Color filter on Array (Color filter on Array, COA) liquid crystal display is a kind of color filter (CF) and thin film transistor (Thin Film Transistor, TFT) array of liquid crystal displays disposed on the same substrate, which can effectively increase the aperture ratio (Aperture) Ratio) can also solve the alignment problem of large-sized panels and reduce the leakage current caused by illumination. Therefore, the color filter integrated transistor technology is particularly suitable for displays of large-sized panels.
  • the color filter integrates the color filter in the transistor type liquid crystal display to integrate the black matrix of the transistor substrate (Black Matrix, BM) or Gap Column (Photo Spacer,
  • the structural design of the PS) is too complicated, so that the color filter integrated with the structure surface of the transistor substrate has a large gap, so it is not conducive to the diffusion of the liquid crystal material, and thus in the screen of the color filter integrated transistor type liquid crystal display.
  • the problem of dropping color halo is that the liquid crystal material is generally formed by using a typical rod-like liquid crystal molecule such as Formula VIII or Formula IX to form a liquid crystal layer thereof:
  • A is a benzene ring in the Aromatic ring (Benzene) Ring); B and C are cyclohexane in the Alicyclic ring; RO- is the terminal group (Terminal) Group), here an alkoxy group; F is a lateral group, here a fluorine atom.
  • the present invention provides a liquid crystal molecule having a flexible structure and a mixture thereof to solve the problem of dripping color haze existing in the prior art.
  • the main object of the present invention is to provide a liquid crystal molecule which can improve the dropping color halo, which is to reform the liquid crystal molecules of the prior art into liquid crystal molecules having a flexible structure including a flexible chain (Flexible Chain) and flexible lateral Group), through the characteristics of flexible structures to increase the wetting ability of liquid crystal molecules in color filter integrated transistor liquid crystal panels (Wetting Therefore, liquid crystal molecules having a flexible structure can be made to exhibit better diffusion performance than liquid crystal molecules of the prior art.
  • the present invention can improve the problem of dropping color halos in a color filter integrated transistor type liquid crystal panel.
  • the present invention provides a liquid crystal molecule having a flexible structure for constituting a liquid crystal layer of a color filter integrated transistor type liquid crystal panel, wherein the structure of the liquid crystal molecule is expressed by Formula I:
  • A is a benzene ring
  • B is cyclohexane
  • RO- is an alkoxy group
  • X is a fluorine atom
  • L1 is a dimethylene linkage.
  • the liquid crystal layer further comprises a liquid crystal active monomer of the following formula IV, wherein the liquid crystal molecules of the formula I and the liquid crystal reactive monomer of the formula IV constitute a liquid crystal composition, the liquid crystal The reactive monomer is used to diffuse the liquid crystal composition on the polyimide surface of the alignment film:
  • A is a benzene ring
  • O is an oxygen atom
  • Y is a hydrogen atom or a fluorine atom
  • the weight of the liquid crystal molecule of Formula I in the total weight of the liquid crystal composition The ratio is 5 to 60%, and the balance is the liquid crystal active monomer of the formula IV.
  • the cyclohexane B and the alkoxy group RO- on the linear phase of the liquid crystal molecule of the formula I further comprise a cyclohexane C, and the liquid crystal molecule is further represented by the formula V.
  • the present invention further provides a liquid crystal molecule having a flexible structure for constituting a liquid crystal layer of a color filter integrated transistor type liquid crystal panel, wherein the structure of the liquid crystal molecule is expressed by Formula II:
  • A is a benzene ring
  • B is a cyclohexane
  • RO- is an alkoxy group
  • X1 and X2 are a fluorine atom or a chlorine atom
  • at least one of X1 and X2 is a chlorine atom
  • L is a biphenyl linking group.
  • the liquid crystal layer further comprises a liquid crystal active monomer of the following formula IV, wherein the liquid crystal molecule of the formula II and the liquid crystal reactive monomer of the formula IV constitute a liquid crystal composition, the liquid crystal The reactive monomer is used to diffuse the liquid crystal composition on the polyimide surface of the alignment film:
  • A is a benzene ring
  • O is an oxygen atom
  • Y is a hydrogen atom or a fluorine atom
  • the weight of the liquid crystal molecule having the formula II in the total weight of the liquid crystal composition The ratio is 5 to 60%, and the balance is the liquid crystal active monomer of the formula IV.
  • the cyclohexane B and the alkoxy group RO- on the linear phase of the liquid crystal molecule of the formula II further comprise a cyclohexane C, and the liquid crystal molecule is further represented by the formula VI.
  • the present invention further provides a liquid crystal molecule having a flexible structure for constituting a liquid crystal layer of a color filter integrated transistor type liquid crystal panel, wherein the structure of the liquid crystal molecule is expressed by Formula III:
  • A is a benzene ring
  • B is a cyclohexane
  • RO- is an alkoxy group
  • X1 and X2 are a fluorine atom or a chlorine atom
  • at least one of X1 and X2 is a chlorine atom
  • L1 is a dimethylene linkage.
  • the liquid crystal layer further comprises a liquid crystal active monomer of the following formula IV, wherein the liquid crystal molecule of the formula III and the liquid crystal reactive monomer of the formula IV constitute a liquid crystal composition, the liquid crystal The reactive monomer is used to diffuse the liquid crystal composition on the polyimide surface of the alignment film:
  • A is a benzene ring
  • O is an oxygen atom
  • Y is a hydrogen atom or a fluorine atom, wherein the weight ratio of the liquid crystal molecules of the III in the total weight of the liquid crystal composition is 5 ⁇ 60%, the rest being the liquid crystal active monomer of the formula IV.
  • the cyclohexane B and the alkoxy group RO- on the linear phase of the liquid crystal molecule of the formula III further include a cyclohexane C, and the liquid crystal molecule further has the formula VII Indicates:
  • the present invention further provides a mixture of liquid crystal molecules having a flexible structure for constituting a liquid crystal layer of a color filter integrated transistor type liquid crystal panel, the mixture of the liquid crystal molecules comprising the above formulas I, II and III Liquid crystal molecules.
  • the liquid crystal molecule with flexible structure of the invention is modified by the liquid crystal molecules of the prior art, and the wettability of the liquid crystal molecules in the color filter integrated transistor type liquid crystal panel is increased by the characteristics of the flexible structure, so that the flexibility is obtained.
  • the liquid crystal molecules of the structure are better in diffusion performance than the liquid crystal molecules of the prior art, thereby improving the problem of dripping color halos in the color filter integrated transistor type liquid crystal panel.
  • FIG. 1 is a schematic view showing the structure of a color filter integrated transistor type liquid crystal panel according to an embodiment of the present invention.
  • FIG. 2 is a schematic view showing the configuration of a color filter integrated transistor type liquid crystal panel according to another embodiment of the present invention.
  • FIG. 1 and FIG. 2 are schematic diagrams showing the structure of a color filter integrated transistor type liquid crystal panel according to two embodiments of the present invention.
  • the color filter integrated transistor type liquid crystal panel comprises: a first substrate 10, a second substrate 20, a liquid crystal layer 30, and a plurality of spacers 40, wherein the first substrate 10 and the second substrate 20
  • the liquid crystal layer 30 is disposed between the first substrate 10 and the second substrate 20 .
  • the first substrate 10 may be a color filter integrated transistor substrate including a first transparent substrate 101, a thin film transistor array layer 102 and a color filter layer 103, wherein the thin film transistor array layer 102 is disposed.
  • the second substrate 20 is an opposite substrate of the first substrate 10, and includes a second transparent substrate 201, a black matrix layer 202, and a transparent conductive film 203, wherein the black matrix layer 202 is disposed on the second substrate
  • the transparent conductive film 203 is disposed on the inner surface of the transparent substrate 201, and the transparent conductive film 203 is disposed on the black matrix layer 202.
  • the plurality of gap posts 40 may be disposed on the inner surface of the first substrate 10 and protrude from the inner surface of the first substrate 10 to the inner surface of the second substrate 20 (please refer to 1)
  • the plurality of gap pillars 40 may be disposed on an inner surface of the second substrate 20 and protrude from the inner surface of the second substrate 20 to the first substrate 10 in another embodiment of the present invention.
  • Inner surface please refer to Figure 2).
  • the liquid crystal molecules in the liquid crystal layer 30 are liquid crystal molecules having a flexible structure.
  • liquid crystal molecules having a flexible structure in the liquid crystal layer 30 of the present invention will be described in detail.
  • the liquid crystal molecules having a flexible structure of the present invention are modified as a rod-like liquid crystal molecule typical in the prior art (refer to Formula VIII and Formula IX of the background art), and the typical rod-like liquid crystal molecules are one in a linear chain.
  • the present inventors introduced a functionalized linker in the molecular chain of the typical rod-like liquid crystal molecule (Linking). a group) and/or a functionalized pendant group which is modified to introduce a flexible chain having a flexible property between the benzene ring A and the cyclohexane B on the straight chain of the typical rod-like liquid crystal molecule.
  • Dimethylene linkage (Dimethylene) Linking Group) and/or introducing a flexible side group having a flexible property on both sides of the benzene ring A of the typical rod-like liquid crystal molecule to form a liquid crystal molecule having a flexible structure, where the both sides may be a fluorine atom or One of chlorine atoms, at least one of which is a chlorine atom.
  • the foregoing modification may have three possibilities (as shown in Formula I, II, and III, respectively), and the liquid crystal molecule having a flexible structure has a flexible chain and a flexible side in a molecular chain.
  • a flexible structure such as a base, and therefore also has the property of a flexible structure.
  • a liquid crystal molecule having a flexible structure of Formula I, II or III is filled in the color filter integrated transistor substrate, and as its liquid crystal layer 30, which is characterized by a flexible structure to increase liquid crystal molecules in color filter
  • the wettability of the integrated transistor type liquid crystal panel enables the liquid crystal molecules having a flexible structure to have better diffusion performance with respect to the typical rod-like liquid crystal molecules, thereby improving the color halo of the color filter integrated transistor liquid crystal panel. problem.
  • A is a benzene ring; B is a cyclohexane; RO- is an alkoxy group; X is a fluorine atom; and X1 and X2 are a fluorine atom or a chlorine atom, the X1 and At least one of X2 is a chlorine atom; L is a biphenyl linkage; L1 is a dimethylene linkage, wherein said L1 is a flexible chain; and said X1 and X2 are flexible pendant groups.
  • the liquid crystal layer 30 of the present invention further comprises a liquid crystal active monomer of the following formula IV in addition to the liquid crystal molecules having the flexible structure described above (reactive) Monomer, RM), the liquid crystal molecule of the formula I, II or III and the liquid crystal reactive monomer of the formula IV constitute a liquid crystal composition for diffusing the liquid crystal composition to the alignment film
  • the liquid crystal molecules having a flexible structure and the liquid crystal reactive monomer of the formula IV constitute a liquid crystal composition
  • the structure of the liquid crystal active monomer of the formula IV is:
  • A is a benzene ring
  • O is an oxygen atom
  • Y is a hydrogen atom or a fluorine atom
  • the liquid crystal molecule having the formula I, II or III in the total weight of the liquid crystal composition The proportion by weight is 5 to 60%, and the rest is the liquid crystal active monomer having the formula IV.
  • the typical rod-like liquid crystal molecules further include another aspect, namely, formula IX, the liquid crystal molecules of the formula IX and
  • the difference of the formula VIII is that only the cyclohexane B and the alkoxy group RO- on the linear chain of the liquid crystal molecule of the formula IX further include a cyclohexane C if the liquid crystal molecule of the formula IX is used as a modified object.
  • A is a benzene ring; B and C are cyclohexane; RO- is an alkoxy group; X is a fluorine atom; and X1 and X2 are a fluorine atom or a chlorine atom, At least one of X1 and X2 is a chlorine atom; L is a biphenyl linkage; L1 is a dimethylene linkage, wherein said L1 is a flexible chain; and said X1 and X2 are flexible pendant groups.
  • liquid crystal molecules in the liquid crystal layer 30 may be optionally mixed with liquid crystal molecules of the formulas I, II, III, V, VI, VII, VIII, IX as liquid crystal materials in the liquid crystal layer 30, which are used.
  • the material is, for example, a mixture of liquid crystal molecules of the formulae I-1, VI-1, VII-1:
  • A is a benzene ring; B and C are cyclohexane; RO- is an alkoxy group; F is a fluorine atom; and X1 and X2 are a fluorine atom or a chlorine atom. In one of the above, at least one of X1 and X2 is a chlorine atom.
  • the liquid crystal molecules having a flexible structure of the present invention introduce the flexible structure into the liquid crystal molecules by reforming, so that the liquid crystal molecules have a characteristic of a flexible structure, thereby increasing liquid crystal molecules in the color filter integrated transistor type liquid crystal panel.

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  • Engineering & Computer Science (AREA)
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  • Organic Chemistry (AREA)
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Abstract

一种具有柔性结构的液晶分子及其混合物,其是将现有技术的液晶分子改质成具有柔性结构的液晶分子,通过柔性结构的特性来增加液晶分子在彩色滤光片整合晶体管式液晶面板中的湿润能力,使得具有柔性结构的液晶分子相对于现有技术的液晶分子可以得到较好的扩散表现。通过改质液晶分子上的柔性结构来增加液晶分子在液晶面板中的湿润能力,进而改进彩色滤光片整合晶体管式液晶面板中滴下色晕的问题。

Description

具有柔性结构的液晶分子及其混合物 技术领域
本发明是有关于一种液晶面板的液晶层,特别是有关于一种具有柔性结构(Flexible structure)的液晶分子及其混合物,其可改进液晶屏幕中滴下色晕(Drop mura)的问题。
背景技术
彩色滤光片整合晶体管式(Color filter on Array, COA)液晶显示器是一种将彩色滤光片(Color Filter, CF)与薄膜晶体管(Thin Film Transistor, TFT)阵列设置于同一基板的液晶显示器,其可以有效的提高开口率(Aperture ratio),还能解决大尺寸面板的对准问题,且同时降低由照光产生的漏电流,因此彩色滤光片整合晶体管技术特别适用于大尺寸面板的显示器。
然而,因为所述彩色滤光片整合晶体管式液晶显示器中的彩色滤光片整合晶体管式基板的黑色矩阵(Black Matrix, BM)或间隙柱(Photo Spacer, PS)的结构设计太复杂,使得所述彩色滤光片整合晶体管式基板的结构表面具有大的断差,所以不利于液晶材料的扩散,进而在彩色滤光片整合晶体管式液晶显示器的屏幕中产生滴下色晕的问题,前述液晶材料普遍是使用如式VIII或式Ⅸ的典型棒状液晶分子来构成其液晶层:
Figure PCTCN2012076142-appb-I000001
Figure PCTCN2012076142-appb-I000002
在式VIII和Ⅸ中,A为芳香环(Aromatic ring)中的苯环(Benzene ring);B和C为脂质环(Alicyclic ring)中的环己烷(Cyclohexane);RO-为尾端基(Terminal group),在此是烷氧基团(Alkoxy group);F为侧基(Lateral group),在此是氟原子。
因此,有必要提供一种可以改进滴下色晕的液晶分子,来解决现有技术所存在的问题。
技术问题
本发明提供一种具有柔性结构的液晶分子及其混合物,以解决现有技术所存在的滴下色晕的问题。
技术解决方案
本发明的主要目的在于提供一种可以改进滴下色晕的液晶分子,其是将现有技术的液晶分子改质成具有柔性结构的液晶分子,所述柔性结构包括柔性链(Flexible chain)和柔性侧基(Flexible lateral group),通过柔性结构的特性来增加液晶分子在彩色滤光片整合晶体管式液晶面板中的湿润能力(Wetting ability),因此使得具有柔性结构的液晶分子相对于现有技术的液晶分子可以得到较好的扩散表现。本发明可以改进彩色滤光片整合晶体管式液晶面板中滴下色晕的问题。
为达成本发明的前述目的,本发明提供一种具有柔性结构的液晶分子,用于构成彩色滤光片整合晶体管式液晶面板的液晶层,其中所述液晶分子的结构如式Ⅰ表示:
Figure PCTCN2012076142-appb-I000003
在式Ⅰ中,A为苯环,B为环己烷,RO-为烷氧基团,X为氟原子,L1为二亚甲基连接基。
在本发明的一实施例中,所述液晶层中另包括下述式Ⅳ的液晶活性单体,所述式Ⅰ的液晶分子和式Ⅳ的液晶活性单体构成一液晶组成物,所述液晶活性单体用以使所述液晶组成物扩散分布于配向膜的聚酰亚胺表面上:
Figure PCTCN2012076142-appb-I000004
在式Ⅳ中,A为苯环,O为氧原子,Y为氢原子或氟原子的一种,其中在所述液晶组成物的总重量中,所述具式Ⅰ的液晶分子所占的重量比例是5~60%,其余为所述具式Ⅳ的液晶活性单体。
在本发明的一实施例中,所述式Ⅰ的液晶分子的直链上的环己烷B和烷氧基团RO-之间还包括一环己烷C,所述液晶分子另以式Ⅴ表示:
Figure PCTCN2012076142-appb-I000005
本发明另提供一种具有柔性结构的液晶分子,用于构成彩色滤光片整合晶体管式液晶面板的液晶层,其中所述液晶分子的结构如式Ⅱ表示:
Figure PCTCN2012076142-appb-I000006
在式Ⅱ中,A为苯环,B为环己烷,RO-为烷氧基团,X1和X2为氟原子或氯原子的一种,所述X1和X2中的至少一个为氯原子,L为联苯基连接基。
在本发明的一实施例中,所述液晶层中另包括下述式Ⅳ的液晶活性单体,所述式Ⅱ的液晶分子和式Ⅳ的液晶活性单体构成一液晶组成物,所述液晶活性单体用以使所述液晶组成物扩散分布于配向膜的聚酰亚胺表面上:
Figure PCTCN2012076142-appb-I000007
在式Ⅳ中,A为苯环,O为氧原子,Y为氢原子或氟原子的一种,其中在所述液晶组成物的总重量中,所述具式Ⅱ的液晶分子所占的重量比例是5~60%,其余为所述具式Ⅳ的液晶活性单体。
在本发明的一实施例中,所述式Ⅱ的液晶分子的直链上的环己烷B和烷氧基团RO-之间还包括一环己烷C,所述液晶分子另以式Ⅵ表示:
Figure PCTCN2012076142-appb-I000008
本发明再提供一种具有柔性结构的液晶分子,用于构成彩色滤光片整合晶体管式液晶面板的液晶层,其中所述液晶分子的结构如式Ⅲ表示:
Figure PCTCN2012076142-appb-I000009
在式Ⅲ中,A为苯环,B为环己烷,RO-为烷氧基团,X1和X2为氟原子或氯原子的一种,所述X1和X2中的至少一个为氯原子,L1为二亚甲基连接基。
在本发明的一实施例中,所述液晶层中另包括下述式Ⅳ的液晶活性单体,所述式Ⅲ的液晶分子和式Ⅳ的液晶活性单体构成一液晶组成物,所述液晶活性单体用以使所述液晶组成物扩散分布于配向膜的聚酰亚胺表面上:
Figure PCTCN2012076142-appb-I000008
在式Ⅳ中,A为苯环,O为氧原子,Y为氢原子或氟原子的一种,其中在所述液晶组成物的总重量中,所述Ⅲ的液晶分子所占的重量比例是5~60%,其余为所述具式Ⅳ的液晶活性单体。
在本发明的一实施例中,所述式Ⅲ的液晶分子的直链上的环己烷B和烷氧基团RO-之间还包括一环己烷C,所述液晶分子另以式Ⅶ表示:
Figure PCTCN2012076142-appb-I000008
再者,本发明另提供一种具有柔性结构的液晶分子的混合物,用于构成彩色滤光片整合晶体管式液晶面板的液晶层,所述液晶分子的混合物包含上述的式Ⅰ、Ⅱ及Ⅲ的液晶分子。
有益效果
本发明的具有柔性结构的液晶分子是由现有技术的液晶分子改质而成的,通过柔性结构的特性来增加液晶分子在彩色滤光片整合晶体管式液晶面板中的湿润能力,使得具有柔性结构的液晶分子相对于现有技术的液晶分子得到较好的扩散表现,进而改进彩色滤光片整合晶体管式液晶面板中滴下色晕的问题。
附图说明
图1是本发明一实施例中彩色滤光片整合晶体管式液晶面板的构造示意图。
图2是本发明另一实施例中彩色滤光片整合晶体管式液晶面板的构造示意图。
本发明的最佳实施方式
为更进一步阐述本发明为达成预订发明目的所采取的技术手段及功效,以下结合附图及较佳实施例,对依据本发明提出的具有柔性结构的液晶分子及其混合物的具体实施方式、结构、特征及其功效,详细说明如后。
请参照图1和图2,其为本发明两种实施例的彩色滤光片整合晶体管式液晶面板的构造示意图。所述彩色滤光片整合晶体管式液晶面板包含:一第一基板10、一第二基板20、一液晶层30及若干间隙柱(spacer)40,其中所述第一基板10与第二基板20相对设置,且所述液晶层30夹设于所述第一基板10与第二基板20之间。所述第一基板10可以是一彩色滤光片整合晶体管式基板,其包括一第一透明基板101、一薄膜晶体管阵列层102和一彩色滤光层103,其中所述薄膜晶体管阵列层102设置于所述第一透明基板101的内表面上,而所述彩色滤光层103则是设置于所述薄膜晶体管阵列层102上。所述第二基板20是第一基板10的对向基板,其包括一第二透明基板201、一黑色矩阵层202和一透明导电膜203,其中所述黑色矩阵层202设置于所述第二透明基板201的内表面上,而所述透明导电膜203则是设置于所述黑色矩阵层202上。本发明一实施例中所述若干间隙柱40可以设置于所述第一基板10的内表面上,且由所述第一基板10的内表面延伸突出至第二基板20的内表面(请参照图1);本发明另一实施例中所述若干间隙柱40可以设置于所述第二基板20的内表面上,且由所述第二基板20的内表面延伸突出至第一基板10的内表面(请参照图2)。所述液晶层30中的液晶分子是一具有柔性结构的液晶分子。
以下,对本发明所述液晶层30中的具有柔性结构的液晶分子进行详细的说明。本发明的具有柔性结构的液晶分子是以现有技术中典型的棒状液晶分子作为改质对象(请参照背景技术的式VIII和式Ⅸ),所述典型的棒状液晶分子是一种在直链中含有芳香环和脂质环的聚合物,本发明者为了解决所述课题,在所述典型的棒状液晶分子的分子链中引入功能化的连接基(Linking group)和/或功能化的侧基对其进行改性,其是在所述典型的棒状液晶分子的直链上苯环A与环己烷B之间引入具有柔性性质的柔性链,在此为二亚甲基连接基(Dimethylene linking group),和/或在所述典型的棒状液晶分子的苯环A的两侧基上引入具有柔性性质的柔性侧基以形成具有柔性结构的液晶分子,在此两侧基可以是氟原子或氯原子的一种,所述两侧基中的至少一个为氯原子。如果以式VIII作为改质对象,前述改性可以具备三种的可能性(分别如式Ⅰ、Ⅱ、Ⅲ所示),所述具有柔性结构的液晶分子的分子链中具有柔性链和柔性侧基等柔性结构,因此也具有柔性结构的性质。式Ⅰ、Ⅱ或Ⅲ的具有柔性结构的液晶分子在填充入所述彩色滤光片整合晶体管式基板中,并作为其液晶层30,其是通过柔性结构的特性来增加液晶分子在彩色滤光片整合晶体管式液晶面板中的湿润能力,使得具有柔性结构的液晶分子相对于所述典型的棒状液晶分子得到较好的扩散表现,进而改进彩色滤光片整合晶体管式液晶面板中滴下色晕的问题。
Figure PCTCN2012076142-appb-I000010
Figure PCTCN2012076142-appb-I000008
Figure PCTCN2012076142-appb-I000008
在式Ⅰ、Ⅱ和Ⅲ中,A为苯环;B为环己烷;RO-为烷氧基团;X为氟原子;X1和X2为氟原子或氯原子的一种,所述X1和X2中的至少一个为氯原子;L为联苯基连接基;L1为二亚甲基连接基,其中所述L1是柔性链;所述X1和X2是柔性侧基。
本发明所述液晶层30中除了前述具有柔性结构的液晶分子之外,还另包括下述式Ⅳ的液晶活性单体(reactive monomer,RM),所述式Ⅰ、Ⅱ或Ⅲ的液晶分子和式Ⅳ的液晶活性单体构成一液晶组成物,所述液晶活性单体用以使所述液晶组成物扩散分布于配向膜的聚酰亚胺表面上,所述具有柔性结构的液晶分子和所述式Ⅳ的液晶活性单体构成一液晶组成物,所述式Ⅳ的液晶活性单体的结构为:
Figure PCTCN2012076142-appb-I000008
在式Ⅳ中,A为苯环,O为氧原子,Y为氢原子或氟原子的一种,其中在所述液晶组成物的总重量中,所述具式Ⅰ、Ⅱ或Ⅲ的液晶分子所占的重量比例是5~60%,其余为所述具式Ⅳ的液晶活性单体。
应该指出的是,前述式Ⅰ、Ⅱ和Ⅲ是以式VIII作为改质对象,然而,所述典型的棒状液晶分子还包括另一种态样,即式Ⅸ,所述式Ⅸ的液晶分子与式VIII的差异仅为式Ⅸ的液晶分子的直链上的环己烷B和烷氧基团RO-之间还包括一环己烷C,如果以所述式Ⅸ的液晶分子作为改质对象,在改性后也可以具备三种的可能性(分别如式Ⅴ、Ⅵ、Ⅶ所示)。
Figure PCTCN2012076142-appb-I000011
Figure PCTCN2012076142-appb-I000008
Figure PCTCN2012076142-appb-I000012
在式Ⅴ、Ⅵ和Ⅶ中,A为苯环;B和C为环己烷;RO-为烷氧基团;X为氟原子;X1和X2为氟原子或氯原子的一种,所述X1和X2中的至少一个为氯原子;L为联苯基连接基;L1为二亚甲基连接基,其中所述L1是柔性链;所述X1和X2是柔性侧基。
前述液晶层30中的所述的液晶分子也可依需求任意混合式Ⅰ、Ⅱ、Ⅲ、Ⅴ、Ⅵ、Ⅶ、VIII、Ⅸ的液晶分子以作为液晶层30中的液晶材料使用,所述液晶材料例如为式Ⅰ-1、Ⅵ-1、Ⅶ-1的液晶分子的混合:
Figure PCTCN2012076142-appb-I000013
Figure PCTCN2012076142-appb-I000008
Figure PCTCN2012076142-appb-I000014
在式Ⅰ-1、Ⅵ-1和Ⅶ-1中,A为苯环;B和C为环己烷;RO-为烷氧基团;F为氟原子;X1和X2为氟原子或氯原子的一种,所述X1和X2中的至少一个为氯原子。
如上所述,本发明的具有柔性结构的液晶分子是通过改质将柔性结构引入至液晶分子中,使得液晶分子具有柔性结构的特性,因此增加液晶分子在彩色滤光片整合晶体管式液晶面板中的湿润能力,而影响其扩散能力,进而改进彩色滤光片整合晶体管式液晶面板的滴下色晕的问题。
本发明已由上述相关实施例加以描述,然而上述实施例仅为实施本发明的范例。必需指出的是,已公开的实施例并未限制本发明的范围。相反地,包含于权利要求书的精神及范围的修改及均等设置均包括于本发明的范围内。
本发明的实施方式
工业实用性
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Claims (15)

  1. 一种具有柔性结构的液晶分子的混合物,用于构成彩色滤光片整合晶体管式液晶面板的液晶层,其中所述液晶分子的混合物包含具有下述式Ⅰ、式Ⅱ与式Ⅲ的液晶分子:
    Figure PCTCN2012076142-appb-I000015
    其中:
    A为苯环;
    B为环己烷;
    RO-为烷氧基团;
    X为氟原子;
    X1和X2为氟原子或氯原子的一种,所述X1和X2中的至少一个为氯原子;
    L为联苯基连接基;
    L1为二亚甲基连接基。
  2. 根据权利要求1所述的具有柔性结构的液晶分子的混合物,其中所述液晶层中另包括下述式Ⅳ的液晶活性单体,所述包含有式Ⅰ、式Ⅱ与式Ⅲ的液晶分子的混合物和式Ⅳ的液晶活性单体构成一液晶组成物,所述液晶活性单体用以使所述液晶组成物扩散分布于配向膜的聚酰亚胺表面上:
    Figure PCTCN2012076142-appb-I000008
    其中:
    A为苯环;
    O为氧原子;
    Y为氢原子或氟原子的一种,
    其中在所述液晶组成物的总重量中,所述包含有式Ⅰ、式Ⅱ与式Ⅲ的液晶分子的混合物所占的重量比例是5~60%,其余为所述具式Ⅳ的液晶活性单体。
  3. 根据权利要求1所述的具有柔性结构的液晶分子的混合物,其中所述式Ⅰ的液晶分子的直链上的环己烷B和烷氧基团RO-之间还包括一环己烷C,所述液晶分子另以式Ⅴ表示:
    Figure PCTCN2012076142-appb-I000016
  4. 根据权利要求1所述的具有柔性结构的液晶分子的混合物,其中所述式Ⅳ的液晶分子的直链上的环己烷B和烷氧基团RO-之间还包括一环己烷C,所述液晶分子另以式Ⅵ表示:
    Figure PCTCN2012076142-appb-I000017
  5. 根据权利要求1所述的具有柔性结构的液晶分子的混合物,其中所述式Ⅵ的液晶分子的直链上的环己烷B和烷氧基团RO-之间还包括一环己烷C,所述液晶分子另以式Ⅶ表示:
    Figure PCTCN2012076142-appb-I000018
  6. 一种具有柔性结构的液晶分子,用于构成彩色滤光片整合晶体管式液晶面板的液晶层,其中所述液晶分子的结构如式Ⅰ表示:
    Figure PCTCN2012076142-appb-I000019
    其中:
    A为苯环;
    B为环己烷;
    RO-为烷氧基团;
    X为氟原子;
    L1为二亚甲基连接基。
  7. 根据权利要求6所述的具有柔性结构的液晶分子,其中所述液晶层中另包括下述式Ⅳ的液晶活性单体,所述式Ⅰ的液晶分子和式Ⅳ的液晶活性单体构成一液晶组成物,所述液晶活性单体用以使所述液晶组成物扩散分布于配向膜的聚酰亚胺表面上:
    Figure PCTCN2012076142-appb-I000008
    其中:
    A为苯环;
    O为氧原子;
    Y为氢原子或氟原子的一种,
    其中在所述液晶组成物的总重量中,所述具式Ⅰ的液晶分子所占的重量比例是5~60%,其余为所述具式Ⅳ的液晶活性单体。
  8. 根据权利要求6所述的具有柔性结构的液晶分子,其中所述式Ⅰ的液晶分子的直链上的环己烷B和烷氧基团RO-之间还包括一环己烷C,所述液晶分子另以式Ⅴ表示:
    Figure PCTCN2012076142-appb-I000020
  9. 一种具有柔性结构的液晶分子,用于构成彩色滤光片整合晶体管式液晶面板的液晶层,其中所述液晶分子的结构如式Ⅱ表示:
    Figure PCTCN2012076142-appb-I000008
    其中:
    A为苯环;
    B为环己烷;
    RO-为烷氧基团;
    X1和X2为氟原子或氯原子的一种,所述X1和X2中的至少一个为氯原子;
    L为联苯基连接基。
  10. 根据权利要求9所述的具有柔性结构的液晶分子,其中所述液晶层中另包括下述式Ⅳ的液晶活性单体,所述式Ⅱ的液晶分子和式Ⅳ的液晶活性单体构成一液晶组成物,所述液晶活性单体用以使所述液晶组成物扩散分布于配向膜的聚酰亚胺表面上:
    Figure PCTCN2012076142-appb-I000021
    其中:
    A为苯环;
    O为氧原子;
    Y为氢原子或氟原子的一种,
    其中在所述液晶组成物的总重量中,所述具式Ⅱ的液晶分子所占的重量比例是5~60%,其余为所述具式Ⅳ的液晶活性单体。
  11. 根据权利要求9所述的具有柔性结构的液晶分子,其中所述式Ⅱ的液晶分子的直链上的环己烷B和烷氧基团RO-之间还包括一环己烷C,所述液晶分子另以式Ⅵ表示:
    Figure PCTCN2012076142-appb-I000022
  12. 一种具有柔性结构的液晶分子,用于构成彩色滤光片整合晶体管式液晶面板的液晶层,其中所述液晶分子的结构如式Ⅲ表示:
    Figure PCTCN2012076142-appb-I000023
    其中:
    A为苯环;
    B为环己烷;
    RO-为烷氧基团;
    X1和X2为氟原子或氯原子的一种,所述X1和X2中的至少一个为氯原子;
    L1为二亚甲基连接基。
  13. 根据权利要求12所述的具有柔性结构的液晶分子,其中所述液晶层中另包括下述式Ⅳ的液晶活性单体,所述式Ⅲ的液晶分子和式Ⅳ的液晶活性单体构成一液晶组成物,所述液晶活性单体用以使所述液晶组成物扩散分布于配向膜的聚酰亚胺表面上:
    Figure PCTCN2012076142-appb-I000024
    其中:
    A为苯环;
    O为氧原子;
    Y为氢原子或氟原子的一种,
    其中在所述液晶组成物的总重量中,所述具式Ⅲ的液晶分子所占的重量比例是5~60%,其余为所述具式Ⅳ的液晶活性单体。
  14. 根据权利要求12所述的具有柔性结构的液晶分子,其中所述式Ⅲ的液晶分子的直链上的环己烷B和烷氧基团RO-之间还包括一环己烷C,所述液晶分子另以式Ⅶ表示:
    Figure PCTCN2012076142-appb-I000008
  15. 15. 根据权利要求12所述的具有柔性结构的液晶分子,其中另包含根据权利要求6所述的式Ⅰ的液晶分子及根据权利要求9所述的式Ⅱ的液晶分子。
PCT/CN2012/076142 2012-05-18 2012-05-28 具有柔性结构的液晶分子及其混合物 WO2013170500A1 (zh)

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