WO2021196352A1 - 偏振发光材料及偏振发光层的制备方法 - Google Patents

偏振发光材料及偏振发光层的制备方法 Download PDF

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WO2021196352A1
WO2021196352A1 PCT/CN2020/089799 CN2020089799W WO2021196352A1 WO 2021196352 A1 WO2021196352 A1 WO 2021196352A1 CN 2020089799 W CN2020089799 W CN 2020089799W WO 2021196352 A1 WO2021196352 A1 WO 2021196352A1
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polarized light
polymerizable monomer
emitting layer
substrate
layer
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French (fr)
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韦宏权
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TCL China Star Optoelectronics Technology Co Ltd
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TCL China Star Optoelectronics Technology Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F112/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
    • C08F112/34—Monomers containing two or more unsaturated aliphatic radicals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F116/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical
    • C08F116/12—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical by an ether radical
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F126/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
    • C08F126/02—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a single or double bond to nitrogen
    • 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
    • C09K11/00—Luminescent materials, e.g. electroluminescent or chemiluminescent
    • C09K11/06—Luminescent materials, e.g. electroluminescent or chemiluminescent containing organic luminescent materials
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2325/18—Homopolymers or copolymers of aromatic monomers containing elements other than carbon and hydrogen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
    • C08J2329/10—Homopolymers or copolymers of unsaturated ethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2339/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Derivatives of such polymers
    • 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
    • C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
    • C09K2211/14—Macromolecular compounds
    • C09K2211/1408—Carbocyclic compounds
    • C09K2211/1425—Non-condensed systems

Definitions

  • the invention relates to the field of display devices, in particular to a preparation method of a polarized light-emitting material and a polarized light-emitting layer.
  • LCD Liquid Crystal Display, liquid crystal display
  • LCD Liquid Crystal Display, liquid crystal display
  • Field generating electrodes such as pixels, are arranged on the two panels. Electrodes, common electrodes, etc.
  • the LCD is configured to apply an electric field in the liquid crystal layer by applying a voltage to the field generating electrodes, determine the direction of liquid crystal molecules of the liquid crystal layer by the generated electric field, and control the polarization of incident light to help display images.
  • Polarizer is an important device material in LCD, but for optical efficiency, about 50% of the light can pass through the polarizer, that is, more than half of the light will be filtered by the polarizer. Therefore, for LCD, Only about 50% of the remaining light can be used to display images, and there will be a large part of the optical loss.
  • the purpose of the present invention is to provide a polarized light-emitting material and a method for preparing a polarized light-emitting layer to solve the problems of excessive light loss of the polarizer in the prior art.
  • the present invention provides a polarized luminescent material
  • the components in the polarized luminescent material include 49.9-89.9% fluorescent polymerizable monomer, 0.1-1% photoinitiator, and 10-50% by mass percentage. % Of solvent.
  • the fluorescent polymerizable monomer has a carbon-carbon double bond functional group and a thiol group.
  • the general structural formula of the fluorescent polymerizable monomer includes:
  • the molecular aspect ratio of the fluorescent polymerizable monomer is 4-100.
  • the fluorescent polymerizable monomer is a rod-shaped liquid crystal structure.
  • the photoinitiator includes one or more of benzophenone, acetophenone, ⁇ -hydroxy ketone, and ⁇ -amino ketone.
  • the solvent includes one or more of acetone, tetrahydrofuran, toluene, propylene glycol, dichloromethane, and chloroform.
  • the present invention also provides a method for preparing a polarized light-emitting layer, which includes the following steps:
  • a substrate is provided: the substrate is provided with a horizontal alignment film and is aligned.
  • Coating the mixed liquid coating the mixed liquid on the substrate, and aligning the mixed liquid.
  • Film formation The substrate is heated and cured in an environment with a temperature of 50-110° C., after polymerization to form a film, it is peeled from the substrate to form a polarized light-emitting layer.
  • the fluorescent polymerizable monomer has a carbon-carbon double bond functional group and a thiol group.
  • the photoinitiator includes one or more of benzophenone, acetophenone, ⁇ -hydroxy ketone, and ⁇ -amino ketone.
  • the solvent includes one or more of acetone, tetrahydrofuran, toluene, propylene glycol, dichloromethane, and chloroform.
  • the present invention also provides a display panel, which includes a liquid crystal panel, a quantum dot light-emitting layer, and a polarized light conversion layer.
  • the quantum dot light-emitting layer is arranged on the liquid crystal panel.
  • the polarized light conversion layer is provided between the quantum dot light-emitting layer and the liquid crystal panel.
  • the polarized light conversion layer has the polarized light emitting layer prepared in the preparation method described above.
  • the polarized light conversion layer further includes a polarizer structure layer, and the polarized light emitting layer is provided in the polarizer structure layer.
  • the polarized light-emitting material provided by the present invention is added with a fluorescent polymerizable monomer that can be excited by blue or ultraviolet light in the backlight to generate excitation fluorescence, thereby compensating for light, Improve optical efficiency and reduce light loss.
  • the preparation method for preparing the polarized light-emitting layer from the polarized light-emitting material is simple and easy to obtain.
  • Fig. 1 is a schematic flow chart of the preparation method in an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a layered structure of a display panel in an embodiment of the present invention.
  • Liquid crystal panel 10 Polarized light conversion layer 20;
  • Quantum dot light-emitting layer 30 Quantum dot light-emitting layer 30; first polarizer 40.
  • the embodiment of the present invention provides a polarized luminescent material, the components of which include 49.9-89.9% fluorescent polymerizable monomer, 0.1-1% photoinitiator, and 10-50% solvent in terms of mass percentage.
  • the fluorescent polymerizable monomer is a rod-shaped liquid crystal structure, which has a carbon-carbon double bond functional group and a thiol group, and has a molecular aspect ratio of 4-100.
  • the general structural formula of the fluorescent polymerizable monomer is.
  • the photoinitiator may use one or more of benzophenone, acetophenone, ⁇ -hydroxy ketone, and ⁇ -amino ketone.
  • the solvent can be one or more of acetone, tetrahydrofuran, toluene, propylene glycol, dichloromethane, and chloroform.
  • the embodiment of the present invention also provides a method for preparing a polarized light-emitting layer.
  • the preparation process is shown in Fig. 1, and the specific preparation steps are as follows:
  • Step S10) Provide a substrate, the substrate is covered with a horizontal alignment film, and the horizontal alignment film aligns the substrate.
  • Step S20) preparing a mixed solution: add 50% of the fluorescent polymerizable monomer, 0.1% of the photoinitiator and 49.9% of the solution in a reaction vessel by mass percentage, and mix uniformly to form the mixed solution.
  • the photoinitiator is benzophenone
  • the solution is tetrahydrofuran.
  • Step S30) coating the mixed liquid uniformly coat the mixed liquid on the substrate, and align the mixed liquid through the horizontal alignment film on the substrate, so that the molecules in the mixed liquid are aligned with each other.
  • the direction is arranged.
  • the general structural formula of the fluorescent polymerizable monomer can also be one of, and the mass percentage and preparation steps thereof are similar to those provided in this embodiment. Therefore, I won't go into too much detail here. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.
  • the embodiment of the present invention also provides a display panel 1.
  • the display panel 1 has a liquid crystal panel 10, a quantum dot light-emitting layer 30, a polarized light conversion layer 20, and a first polarized light. ⁇ 40.
  • the first polarizer 40 is disposed on the liquid crystal panel 10 and is used to analyze the polarized light in the liquid crystal panel 10 after being electrically modulated by the liquid crystal.
  • the polarized light conversion layer 20 is disposed on a surface of the liquid crystal panel 10 away from the first polarizer 40, and includes a polarizer structure layer and the polarized light emitting layer prepared in the above preparation method.
  • the light-emitting layer is attached or pressed in the polarization structure layer.
  • the quantum dot light-emitting layer 30 is disposed on a surface of the polarized light conversion layer 20 away from the liquid crystal panel 10.
  • the polarized light-emitting layer in the polarized light conversion layer 20 When the polarized light-emitting layer in the polarized light conversion layer 20 is excited by blue or ultraviolet light in the backlight, excited fluorescence is generated, and because the molecules in the polarized light-emitting layer are aligned in an orderly manner, the excited fluorescence is emitted in the same direction. , Thereby forming polarized light in a certain vibration direction, which compensates for some of the light filtered out in the structure layer of the polarizer. After passing through the liquid crystal panel 10, after rotating the vibration direction of the polarized light by 90°, it is emitted from the first polarizer 40, which effectively utilizes the blocked light, thereby enhancing the optical efficiency.
  • the polarized light-emitting layer provided in the embodiment of the present invention adds a fluorescent polymerizable monomer to its raw material—polarized light-emitting material, and the fluorescent polymerizable monomer can be excited by blue or ultraviolet light in the backlight to generate excited fluorescence. , Thereby compensating for light, improving optical efficiency, reducing light loss, saving backlight, and improving the brightness of the display panel 1.
  • the preparation method has a simple process and simple materials.

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  • Health & Medical Sciences (AREA)
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  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
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Abstract

一种偏振发光材料及偏振发光层的制备方法，偏振发光材料中的组分按质量百分比包括49.9-89.9％的荧光可聚合单体、0.1-1％的光引发剂以及10-50％的溶剂。其中，荧光可聚合单体中具有碳碳双键官能团和硫醇基团。

Description

偏振发光材料及偏振发光层的制备方法 技术领域
本发明涉及显示器件领域，特别是一种偏振发光材料及偏振发光层的制备方法。
背景技术
LCD(Liquid Crystal Display，液晶显示器)是平板显示器的最常用类型之一，其通常包括两个面板和设置在两个面板之间的液晶层，在两个面板上设置有场产生电极，诸如像素电极、公共电极等。LCD被配置为通过施加电压至场产生电极而在液晶层中施加电场，通过所产生的电场而确定液晶层的液晶分子的方向，并且控制入射光的偏振，以有助于显示图像。
偏光片是LCD中重要的器件材料，但对于光学效率来说，有大约50％的光可以从偏光片中透过，即有一半以上的光会被偏光片过滤掉，因此对于LCD来说，仅剩的大约50％的光可以用于显示图像，会有很大的一部分光学损失。
技术问题
本发明的目的是提供一种偏振发光材料及偏振发光层的制备方法，以解决现有技术中偏光片光线损失过多等问题。
技术解决方案
为实现上述目的，本发明提供一种偏振发光材料，所述偏振发光材料中的组分按质量百分比包括49.9-89.9％的荧光可聚合单体、0.1-1％的光引发剂以及10-50％的溶剂。其中，所述荧光可聚合单体中具有碳碳双键官能团和硫醇基团。
进一步地，所述荧光可聚合单体的结构通式中包括：
Figure PCTCN2020089799-appb-000001
Figure PCTCN2020089799-appb-000002
中的一种。
进一步地，所述荧光可聚合单体的分子长径比为4-100。
进一步地，所述荧光可聚合单体为棒状液晶结构。
进一步地，所述光引发剂中包括二苯甲酮、苯乙酮、α-羟基酮、α-氨基酮中的一种或多种。
进一步地，所述溶剂中包括丙酮、四氢呋喃、甲苯、丙二醇、二氯甲烷、氯仿中的一种或多种。
本发明中还提供一种偏光发光层的制备方法，所述制备方法包括以下步骤：
提供一基板：所述基板上具有水平配向膜，并对其进行配向。
制备混合液：在反应容器中按质量百分比加入49.9-89.9％的荧光可聚合单体、0.1-1％的光引发剂以及10-50％的溶剂，并混合均匀。
涂覆所述混合液：在所述基板上涂覆所述混合液，并对所述混合液进行配向。
成膜：将所述基板置于温度为50-110℃的环境中进行加热以及固化，聚合成膜后，将其从所述基板上剥离，形成偏光发光层。
其中，所述荧光可聚合单体中具有碳碳双键官能团和硫醇基团。
进一步地，所述光引发剂中包括二苯甲酮、苯乙酮、α-羟基酮、α-氨基酮中的一种或多种。所述溶剂中包括丙酮、四氢呋喃、甲苯、丙二醇、二氯甲烷、氯仿中的一种或多种。
本发明中还提供一种显示面板，所述显示面板中包括液晶面板、量子点发光层以及偏光光转换层。所述量子点发光层设于所述液晶面板上。所述偏光光转换层设于所述量子点发光层和所述液晶面板之间。其中，所述偏光光转换层中具有如上所述制备方法中所制备的偏光发光层。
进一步地，所述偏光光转换层中还包括偏光片结构层，所述偏光发光层设于所述偏光片结构层中。
有益效果
本发明的优点是：本发明所提供的一种偏振发光材料，其添加了荧光可聚合单体，所述荧光可聚合单体能够被背光中蓝光或紫外光激发产生激发荧光，从而补偿光线，提高光学效益，减少光线损失。并且由偏振发光材料制备偏光发光层的制备方法流程简易，材料简单易得。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例中制备方法的流程示意图；
图2为本发明实施例中显示面板的层状结构示意图。
图中部件表示如下：
显示面板1；
液晶面板10；偏光光转换层20；
量子点发光层30；第一偏光片40。
本发明的实施方式
以下为本发明的优选实施例，以向本领域中的技术人员完整介绍本发明的技术内容，以举例证明本发明可以实施，使得本发明公开的技术内容更加清楚，使得本领域的技术人员更容易理解如何实施本发明。然而本发明可以通过许多不同形式的实施例来得以体现，本发明的保护范围并非仅限于文中提到的实施例，下文实施例的说明并非用来限制本发明的范围。
其中，在本发明说明书中，其使用的所有原材料均是常规使用的，可以从市场购得。在本发明中，如非特指，所有的量、百分比、份均为质量份单位。本发明说明书中使用的术语仅用来描述特定实施方式，而并不意图显示本发明的概念。除非上下文中有明确不同的意义，否则，以单数形式使用的表达涵盖复数形式的表达。在本发明说明书中，应理解，诸如“包括”、“具有”以及“含有”等术语意图说明存在本发明说明书中揭示的特征、数字、步骤、动作或其组合的可能性，而并不意图排除可存在或可添加一个或多个其他特征、数字、步骤、动作或其组合的可能性。
上下文有明确的相反提示，否则本文中所述的所有方法的步骤都可以按任何适当次序加以执行。本发明的改变并不限于描述的步骤顺序。除非另外主张，否则使用本文中所提供的任何以及所有实例或示例性语言(例如，“例如”)都仅仅为了更好地说明本发明的概念，而并非对本发明的概念的范围加以限制。在不脱离精神和范围的情况下，所属领域的技术人员将易于明白多种修改和适应。
本发明实施例中提供了一种偏振发光材料，其组分按质量百分比包括49.9-89.9％的荧光可聚合单体、0.1-1％的光引发剂以及10-50％的溶剂。
所述荧光可聚合单体为棒状液晶结构，其具有碳碳双键官能团和硫醇基团，并且其分子长径比4-100。在本发明实施例中，所述荧光可聚合单体的结构通式为。
所述光引发剂可以采用二苯甲酮、苯乙酮、α-羟基酮、α-氨基酮中的一种或多种。
所述溶剂可以采用丙酮、四氢呋喃、甲苯、丙二醇、二氯甲烷、氯仿中的一种或多种。
本发明实施例中还提供了一种偏振发光层的制备方法，其制备流程如图1所示，其具体制备步骤如下：
步骤S10)提供一基板，所述基板上覆有水平配向膜，并且所述水平配向膜对所述基板进行配向。
步骤S20)制备混合液：在一反应容器中按质量百分比加入50％的荧光可聚合单体、0.1％的光引发剂以及49.9％的溶液，并混合均匀，形成所述混合液。其中，所述光引发剂采用二苯甲酮，所述溶液采用四氢呋喃。
步骤S30)涂覆所述混合液：将所述混合液均匀涂覆在所述基板上，并通过所述基板上的水平配向膜对所述混合液进行配向，使混合液中的分子按同一方向排列。
步骤S40)成膜：将所述基板置于温度为50-110℃的环境中进行加热，去除所述混合液中的液体使其预固化。然后继续在温度为50-110℃的环境加热，进行热固化，并使碳碳双键官能团和硫醇基团完全反应，聚合成膜。成膜的同时固定住其分子的排列状态。最后，将其从所述基板上剥离，形成偏光发光层。
在本发明的其他实施例中，所述荧光可聚合单体的结构通式中还可以为、、中的一种，其所占质量百分比以及制备步骤与本实施例中所提供的相似，因此不在此做过多赘述。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其它实施例，都属于本申请保护的范围。
本发明实施例中还提供了一种显示面板1，如图2所示，所述显示面板1中具有一液晶面板10、一量子点发光层30、一偏光光转换层20以及一第一偏光片40。
所述第一偏光片40设于所述液晶面板10上，其用于解析液晶面板10那中经过液晶电调制后的偏振光。所述偏光光转换层20设于所述液晶面板10远离所述第一偏光片40的一表面上，其包括以一偏光片结构层以及上述制备方法中所制备的偏光发光层，所述偏光发光层贴合或压合在所述偏光结构层中。所述量子点发光层30设于所述偏光光转换层20远离所述液晶面板10的一表面上。
当偏光光转换层20中偏光发光层受到背光中蓝光或紫外光的激发时，产生激发荧光，而由于所述偏光发光层中的分子进行了有序取向，使激发荧光沿着同一方向发射出，从而形成某一振动方向的偏振光，补偿了偏光片结构层中被过滤掉的部分光线。再经过液晶面板10，将偏振光的振动方向旋转90°后，从所述第一偏光片40发射出去，有效的利用了被阻挡的光，从而提升光学效益。
本发明实施例中所提供的偏振发光层，其通过在其原材料——偏振发光材料中添加了荧 光可聚合单体，所述荧光可聚合单体能够被背光中蓝光或紫外光激发产生激发荧光，从而补偿光线，提高光学效益，减少光线损失，节省背光源，提高显示面板1的亮度。并且其制备方法流程简易，材料简单易得。
虽然在本文中参照了特定的实施方式来描述本发明，但是应该理解的是，这些实施例仅仅是本发明的原理和应用的示例。因此应该理解的是，可以对示例性的实施例进行许多修改，并且可以设计出其他的布置，只要不偏离所附权利要求所限定的本发明的精神和范围。应该理解的是，可以通过不同于原始权利要求所描述的方式来结合不同的从属权利要求和本文中所述的特征。还可以理解的是，结合单独实施例所描述的特征可以使用在其他所述实施例中。

Claims (10)

  1. 一种偏振发光材料，其中，其组分按质量百分比包括：
    荧光可聚合单体         49.9-89.9％；
    光引发剂               0.1-1％；
    溶剂                   10-50％；
    其中，所述荧光可聚合单体中具有碳碳双键官能团和硫醇基团。
  2. 如权利要求1所述的偏振发光材料，其中，所述荧光可聚合单体的结构通式中包括：
    Figure PCTCN2020089799-appb-100001
    Figure PCTCN2020089799-appb-100002
    中的一种。
  3. 如权利要求1所述的偏振发光材料，其中，所述荧光可聚合单体的分子长径比为4-100。
  4. 如权利要求1所述的偏振发光材料，其中，所述荧光可聚合单体为棒状液晶结构。
  5. 如权利要求1所述的偏振发光材料，其中，所述光引发剂中包括二苯甲酮、苯乙酮、α-羟基酮、α-氨基酮中的一种或多种。
  6. 如权利要求1所述的偏振发光材料，其中，所述溶剂中包括丙酮、四氢呋喃、甲苯、丙二醇、二氯甲烷、氯仿中的一种或多种。
  7. 一种偏光发光层的制备方法，其包括以下步骤：
    提供一基板：所述基板上具有水平配向膜，并对其进行配向；
    制备混合液：在反应容器中按质量百分比加入49.9-89.9％的荧光可聚合单体、0.1-1％的光引发剂以及10-50％的溶剂，并混合均匀；
    涂覆所述混合液：在所述基板上涂覆所述混合液，并对所述混合液进行配向；
    成膜：将所述基板置于温度为50-110℃的环境中进行加热以及固化，聚合成膜后，将其从所述基板上剥离，形成偏光发光层；
    其中，所述荧光可聚合单体中具有碳碳双键官能团和硫醇基团。
  8. 如权利要求7所述的制备方法，其中，
    所述光引发剂中包括二苯甲酮、苯乙酮、α-羟基酮、α-氨基酮中的一种或多种；
    所述溶剂中包括丙酮、四氢呋喃、甲苯、丙二醇、二氯甲烷、氯仿中的一种或多种。
  9. 一种显示面板，其包括：
    液晶面板；
    量子点发光层，设于所述液晶面板上；
    偏光光转换层，设于所述量子点发光层和所述液晶面板之间；
    其中，所述偏光光转换层中具有如权利要求7中所制备的偏光发光层。
  10. 如权利要求9所述的显示面板，其中，所述偏光光转换层中还包括：偏光片结构层，所述偏光发光层设于所述偏光片结构层中。
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