CN105700262B - 液晶显示装置及其制作方法 - Google Patents
液晶显示装置及其制作方法 Download PDFInfo
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- CN105700262B CN105700262B CN201610228437.XA CN201610228437A CN105700262B CN 105700262 B CN105700262 B CN 105700262B CN 201610228437 A CN201610228437 A CN 201610228437A CN 105700262 B CN105700262 B CN 105700262B
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- liquid crystal
- crystal display
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- display device
- quantum dot
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 318
- 238000002360 preparation method Methods 0.000 title abstract description 4
- 239000000463 material Substances 0.000 claims abstract description 125
- 239000000203 mixture Substances 0.000 claims abstract description 66
- 239000000178 monomer Substances 0.000 claims abstract description 47
- UWCWUCKPEYNDNV-LBPRGKRZSA-N 2,6-dimethyl-n-[[(2s)-pyrrolidin-2-yl]methyl]aniline Chemical compound CC1=CC=CC(C)=C1NC[C@H]1NCCC1 UWCWUCKPEYNDNV-LBPRGKRZSA-N 0.000 claims abstract description 14
- 229920000642 polymer Polymers 0.000 claims abstract description 13
- 239000000758 substrate Substances 0.000 claims description 100
- 239000002096 quantum dot Substances 0.000 claims description 50
- 238000004519 manufacturing process Methods 0.000 claims description 29
- 239000003446 ligand Substances 0.000 claims description 12
- 239000011159 matrix material Substances 0.000 claims description 11
- 210000002858 crystal cell Anatomy 0.000 claims description 10
- 230000004048 modification Effects 0.000 claims description 8
- 238000012986 modification Methods 0.000 claims description 8
- YBNMDCCMCLUHBL-UHFFFAOYSA-N (2,5-dioxopyrrolidin-1-yl) 4-pyren-1-ylbutanoate Chemical compound C=1C=C(C2=C34)C=CC3=CC=CC4=CC=C2C=1CCCC(=O)ON1C(=O)CCC1=O YBNMDCCMCLUHBL-UHFFFAOYSA-N 0.000 claims description 6
- 229910005543 GaSe Inorganic materials 0.000 claims description 6
- 229910004262 HgTe Inorganic materials 0.000 claims description 6
- 229910002665 PbTe Inorganic materials 0.000 claims description 6
- 229910007709 ZnTe Inorganic materials 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 claims description 6
- OCGWQDWYSQAFTO-UHFFFAOYSA-N tellanylidenelead Chemical compound [Pb]=[Te] OCGWQDWYSQAFTO-UHFFFAOYSA-N 0.000 claims description 6
- 239000004988 Nematic liquid crystal Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 22
- 238000006116 polymerization reaction Methods 0.000 abstract description 19
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 241001062009 Indigofera Species 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 4
- 239000002105 nanoparticle Substances 0.000 description 4
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- 239000002245 particle Substances 0.000 description 3
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- 125000001231 benzoyloxy group Chemical group C(C1=CC=CC=C1)(=O)O* 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000011258 core-shell material Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 125000003707 hexyloxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
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- 238000001228 spectrum Methods 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
本发明提供一种液晶显示装置及其制作方法,该液晶显示装置为蓝相液晶显示装置,无需配向层,形成液晶层的液晶组合物包括液晶材料、混合于所述液晶材料中的量子点材料、可聚合单体、及手性剂;所述可聚合单体在形成液晶层时在液晶材料的蓝相温域下聚合形成聚合物网络,能够稳定蓝相液晶、拓宽液晶材料的蓝相温域,所述量子点材料的粒径为纳米级别,能够拓宽蓝相液晶温域,即在可聚合单体聚合前已将液晶材料的蓝相温域拓宽,从而降低了聚合制程的温度精度要求及难度,并且量子点材料可改善磁滞现象,同时提升了液晶显示装置的背光的利用率及显示色域,使该液晶显示装置可用于快速显示及3D显示领域。
Description
技术领域
本发明涉及液晶显示技术领域,尤其涉及一种液晶显示装置及其制作方法。
背景技术
液晶显示器(Liquid Crystal Display,LCD)是目前最广泛使用的平板显示器之一,液晶面板是液晶显示器的核心组成部分。
传统的液晶显示面板通常是由一彩色滤光片(Color Filter,CF)基板、一薄膜晶体管阵列基板(Thin Film Transistor Array Substrate,TFT Array Substrate)以及一配置于两基板间的液晶层(Liquid Crystal Layer)所构成,其工作原理是在两片平行的玻璃基板当中放置液晶分子,两片玻璃基板中间有许多垂直和水平的细小电线,通过通电与否来控制液晶分子改变方向,将背光模组的光线折射出来产生画面。其中薄膜晶体管阵列基板上制备有薄膜晶体管(TFT)阵列,用于驱动液晶的旋转,控制每个像素的显示,而彩色滤光片基板上设置RGB彩色滤光层,用于形成每个像素的色彩。
量子点(Quantumdots,QDs)发光材料是一种应用于液晶显示技术领域的新技术。量子点由粒径介于1~20nm之间的纳米颗粒组成。由于电子和空穴被量子限域,量子点连续的能带结构被分立独立能级结构,受激后可以发射荧光。量子点的发生光谱主要由量子点的粒径大小来控制,因此可以通过改变量子点的粒径来实现发射光谱的调节,再通过不同粒径的量子点按一定比率组合形成白色光。量子点发光材料具有发光光谱集中、色纯度高的优点,应用于液晶显示技术领域,可以大幅度提高传统液晶显示器的色域,使液晶显示器的色彩还原能力得到增强。同时,量子点发光材料的光转换效率很高,可以提高光的利用率。
蓝相(Blue phase,BP)是液晶相态变化过程中具有特殊性质的一个相态,出现在向列相和各相同性相之间,蓝相液晶由于其特有的双扭曲螺旋排列结构,具有快速响应的优点,响应时间可小于1ms,可应用于场序显示及3D显示方面。同时由于蓝相液晶为各向同性结构,可加电产生光学双折射,应用蓝相液晶的液晶显示装置无需制作配向层,可降低制程难度减少成本。但由于蓝相液晶存在温域窄(一般1-2℃)、驱动电压高、及加电很难恢复到初始状态即存在磁滞现象的问题,在实际应用中很难被利用。
现有技术中为了拓宽蓝相液晶的温域,一般可以通过聚合物稳定蓝相液晶的方法拓宽蓝相液晶的温域,这种方法需要在液晶中加入可聚合单体,当液晶加热到蓝相温域的时候对可聚合单体进行紫外照射聚合,可以很大程度上拓宽蓝相的温域。此种方法对温度精度要求很高,聚合时温度需控制在±1℃甚至更小温度范围内,工艺难度很大;另一种拓宽蓝相液晶温域的方法是在蓝相液晶中增加一定比例的纳米粒子,可以在一定程度控制蓝相的温域。
发明内容
本发明的目的在于提供一种液晶显示装置,为蓝相液晶显示装置,具有较宽的蓝相温域,无需配向层,制作成本低,响应快速,背光利用率高,显示色域高,可用于快速显示及3D显示领域。
本发明的另一目的在于提供一种液晶显示装置的制作方法,降低制作成本,提升液晶显示装置的响应速度、背光利用率、及显示色域。
为实现上述目的,本发明首先提供一种液晶显示装置,包括:液晶显示面板、及位于液晶显示面板下方的背光模组;
所述液晶显示面板包括相对设置的TFT阵列基板和彩色滤光片基板、夹设于所述TFT阵列基板和彩色滤光片基板之间的液晶层、设于所述TFT阵列基板上远离所述液晶层一侧的下偏光片、及设于所述彩色滤光片基板上远离所述液晶层一侧的上偏光片;
所述液晶层由一液晶组合物所形成,该液晶组合物包括液晶材料、混合于所述液晶材料中的量子点材料、可聚合单体、及手性剂;
所述液晶层中的液晶材料为蓝相液晶;
所述可聚合单体在形成液晶层时在所述液晶材料的蓝相温域下聚合形成聚合物网络。
所述可聚合单体在液晶组合物中的质量百分比浓度为0.1wt%-25wt%。
所述液晶组合物中的量子点材料包括:光致红色发光量子点、光致绿色发光量子点、及光致蓝色发光量子点;
所述光致红色发光量子点在液晶组合物中的质量百分比浓度为0.01wt%-2wt%;所述光致绿色发光量子点在液晶组合物中的质量百分比浓度为0.01wt%-2wt%;所述光致蓝色发光量子点在液晶组合物中的质量百分比浓度为小于2wt%。
所述液晶组合物中的量子点材料为表面经过修饰具有配体分子的量子点,该量子点的材料为CdS,CSe,CTe,PbS,PbSe,PbTe,ZnS,ZnSe,ZnTe,HgS,HgSe,HgTe,GaS,GaSe,Gae,InS,InSe,InTe中的一种或多种,该量子点的尺寸为1-30nm。
所述TFT阵列基板包括:第一衬底基板、设于所述第一衬底基板上的TFT阵列、及设于所述TFT阵列上的电极层;
所述彩色滤光片基板包括:第二衬底基板、设于所述第二衬底基板上的黑色矩阵、设于所述第二衬底基板及黑色矩阵上的彩色滤光层、及设于所述彩色滤光层上的柱状隔垫物;
所述背光模组为蓝光背光模组。
本发明还提供一种液晶显示装置的制作方法,包括以下步骤:
步骤1、提供一TFT阵列基板和一彩色滤光片基板;
步骤2、提供一液晶组合物,将所述液晶组合物滴加在TFT阵列基板或彩色滤光片基板上;
所述液晶组合物包括液晶材料、混合于所述液晶材料中的量子点材料、可聚合单体、及手性剂;
此时,液晶组合物中的液晶材料为向列相液晶;
步骤3、将TFT阵列基板和彩色滤光片基板对组,得到液晶盒;
步骤4、对所述液晶盒加热至液晶材料的清亮点后进行降温,当温度降至液晶材料的蓝相温域时保持温度恒定,从TFT阵列基板侧对所述液晶盒进行紫外光照射,使其内的可聚合单体聚合形成聚合物网络,得到夹设于所述TFT阵列基板和彩色滤光片基板之间的液晶层,此时,所述液晶层内的液晶材料为蓝相液晶;
步骤5、在所述TFT阵列基板上远离所述液晶层一侧贴设下偏光片,在所述彩色滤光片基板上远离所述液晶层一侧贴设上偏光片,得到液晶显示面板;
步骤6、提供背光模组,将液晶显示面板与背光模组进行组合,完成液晶显示装置的制作。
所述步骤2提供的液晶组合物中,所述量子点材料包括:光致红色发光量子点、光致绿色发光量子点、及光致蓝色发光量子点;
所述光致红色发光量子点在液晶组合物中的质量百分比浓度为0.01wt%-2wt%;所述光致绿色发光量子点在液晶组合物中的质量百分比浓度为0.01wt%-2wt%;所述光致蓝色发光量子点在液晶组合物中的质量百分比浓度为小于2wt%;
所述液晶组合物中的量子点材料为表面经过修饰具有配体分子的量子点,该量子点的材料为CdS,CSe,CTe,PbS,PbSe,PbTe,ZnS,ZnSe,ZnTe,HgS,HgSe,HgTe,GaS,GaSe,Gae,InS,InSe,InTe中的一种或多种,该量子点的尺寸为1-30nm。
所述步骤2提供的液晶组合物,可聚合单体在液晶组合物中的质量百分比浓度为0.1wt%-25wt%。
所述步骤4中,对所述液晶盒的降温速度为0.01℃/min-2℃/min。
所述TFT阵列基板包括:第一衬底基板、设于所述第一衬底基板上的TFT阵列、及设于所述TFT阵列上的电极层;
所述彩色滤光片基板包括:第二衬底基板、设于所述第二衬底基板上的黑色矩阵、设于所述第二衬底基板及黑色矩阵上的彩色滤光层、及设于所述彩色滤光层上的柱状隔垫物;
所述背光模组为蓝光背光模组。
本发明的有益效果:本发明提供的液晶显示装置,为蓝相液晶显示装置,无需配向层,形成液晶层的液晶组合物包括液晶材料、混合于所述液晶材料中的量子点材料、可聚合单体、及手性剂;所述可聚合单体在形成液晶层时在液晶材料的蓝相温域下聚合形成聚合物网络,能够稳定蓝相液晶、拓宽液晶材料的蓝相温域,所述量子点材料的粒径为纳米级别,能够拓宽蓝相液晶温域,即在可聚合单体聚合前已将液晶材料的蓝相温域拓宽,从而降低了聚合制程的温度精度要求,并且量子点材料可改善磁滞现象,同时提升了液晶显示装置的背光的利用率及显示色域,使该液晶显示装置可用于快速显示及3D显示领域。本发明提供的液晶显示装置的制作方法,形成液晶层的液晶组合物包括液晶材料、混合于所述液晶材料中的量子点材料、可聚合单体、及手性剂,在液晶材料处于蓝相温域时利用紫外光对可聚合单体进行照射使其聚合形成聚合物网络,从而形成了具有宽温域、低磁滞效应的蓝相液晶显示装置,省去液晶显示装置中配向层的制作,降低成本,提高了液晶显示装置的响应速度,并且提高液晶显示装置的背光利用率及显示色域。
附图说明
为了能更进一步了解本发明的特征以及技术内容,请参阅以下有关本发明的详细说明与附图,然而附图仅提供参考与说明用,并非用来对本发明加以限制。
附图中,
图1为本发明的液晶显示装置的结构示意图;
图2为本发明的液晶显示装置的制作方法的流程图;
图3为本发明的液晶显示装置的制作方法步骤1的示意图;
图4为本发明的液晶显示装置的制作方法步骤3的示意图;
图5为本发明的液晶显示装置的制作方法步骤4的示意图;
图6为本发明的液晶显示装置的制作方法步骤5的示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果,以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图1,本发明提供一种液晶显示装置,其特征在于,包括:液晶显示面板1、及位于液晶显示面板1下方的背光模组2;
所述液晶显示面板1包括相对设置的TFT阵列基板100和彩色滤光片基板200、夹设于TFT阵列基板100和彩色滤光片基板200之间的液晶层300、设于TFT阵列基板100上远离液晶层300一侧的下偏光片410,及设于彩色滤光片基板200上远离液晶层300一侧的上偏光片420。
其中,所述TFT阵列基板100包括:第一衬底基板、设于第一衬底基板上的TFT阵列、及设于TFT阵列上的电极层;所述彩色滤光片基板200用于防止混色及漏光、形成彩色显示及提供盒厚,包括:第二衬底基板210、设于第二衬底基板上的黑色遮光矩阵230、设于第二衬底基板及黑色遮光矩阵230上的彩色滤光层220、及设置在彩色滤光层220上的柱状隔垫物。
所述液晶层300由一液晶组合物所形成,该液晶组合物包括:液晶材料310、混合于所述液晶材料310中的量子点材料320、可聚合单体330、及手性剂。
所述液晶层300中的液晶材料310为蓝相液晶。
所述可聚合单体330在形成液晶层300时在所述液晶材料310的蓝相温域下聚合形成聚合物网络,能够稳定蓝相液晶,从而拓宽液晶材料310的蓝相温域。
具体地,可聚合单体330在液晶组合物中的质量百分比浓度为0.1wt%-25wt%。
具体地,所述液晶层300中蓝相的液晶材料310由向列相的液晶材料310制得,所述液晶材料310为正性液晶。
优选地,所述液晶材料310的分子结构式为以下的一种或多种:
其中,n=3,4,5,6,7,8。
具体地,所述手性剂在液晶组合物中的质量百分比浓度为2wt%~5wt%。
优选地,所述手性剂的分子结构式为
具体地,所述可聚合单体330为具有液晶性且端基含有双键的紫外可聚合单体,这种紫外可聚合单体自身具有液晶性,端基含有双键,可以更好的溶解到液晶分子中。
优选地,所述可聚合单体330为:1,4-双(4-(6’-丙烯氧基己氧基)苯甲酰氧基)-2-甲苯,其分子结构式为
具体地,液晶组合物中的量子点材料320包括:光致红色发光量子点、光致绿色发光量子点、及光致蓝色发光量子点;光致红色发光量子点在液晶组合物中的质量百分比浓度为0.01wt%-2wt%;光致绿色发光量子点在液晶组合物中的质量百分比浓度为0.01wt%-2wt%;光致蓝色发光量子点在液晶组合物中的质量百分比浓度为2wt%以下。
具体的,所述背光模组2为发出蓝光背光的蓝光背光模组;可选的,所述量子点材料320中也可不包括光致蓝色发光量子点。
进一步地,液晶组合物中的量子点材料320为经过表面修饰的量子点,其表面具有配体分子。具体的,该量子点的材料为CdS,CSe,CTe,PbS,PbSe,PbTe,ZnS,ZnSe,ZnTe,HgS,HgSe,HgTe,GaS,GaSe,Gae,InS,InSe,InTe中的一种或多种,包括以上任意材料组合形成的核壳结构;配体分子主要为带液晶基团的配体,表面具有配体分子的量子点材料320为亲油性,从而可使量子点材料320更好地在蓝相液晶310中分散。具体的,量子点材料320的表面修饰方法可以为微胶囊法、微乳液法、复合法、及表面活性剂法。
具体的,液晶组合物中的量子点材料320为具有不同粒径颗粒的混合物,形成量子点材料320的量子点的尺寸为1-30nm。
具体地,由于蓝相液晶响应时间可小于1ms,该液晶显示装置的响应速度得到提升,同时由于蓝相液晶的特性,该液晶显示装置中无需制作配向层,能够降低制程的难度减少生产成本,所述可聚合单体330在液晶材料310处于蓝相温域时接收紫外光照射产生聚合,形成聚合物网络,能够稳定蓝相液晶,拓宽液晶材料310的蓝相温域,降低蓝相液晶应用的难度,所述量子点材料320作为纳米粒子,可拓宽液晶材料310的蓝相温域,即在可聚合单体330聚合前已拓宽液晶材料310的蓝相温域,使可聚合单体聚合制程的难度降低,并且能降低磁滞现象,实现零磁滞效果,同时由于量子点材料的特性,液晶显示装置的背光的利用率及显示色域提高,液晶显示装置性能好,可应用于快速显示及3D显示领域。
请参阅图2,本发明还提供一种液晶显示装置的制作方法,包括以下步骤:
步骤1、提供一TFT阵列基板100和一彩色滤光片基板200。
请参阅图3,具体地,所述TFT阵列基板100包括:第一衬底基板、设置在第一衬底基板上的TFT阵列、及设于TFT阵列上的电极层;所述彩色滤光片基板200包括:第二衬底基板210、设于第二衬底基板210上的黑色遮光矩阵230、及设于第二衬底基板210及黑色遮光矩阵230上的彩色滤光层220、及设置在彩色滤光层220上的柱状隔垫物。
步骤2、提供一液晶组合物,将所述液晶组合物滴布在在TFT阵列基板100或彩色滤光片基板200上;
所述液晶组合物包括液晶材料310、混合于所述液晶材料310中的量子点材料320、可聚合单体330、及手性剂;
此时,液晶组合物中的液晶材料310为向列相液晶。
具体地,所述液晶材料310为正性液晶。
优选地,所述液晶材料310的分子结构式为以下的一种或多种:
其中,n=3,4,5,6,7,8。
具体地,所述手性剂在液晶组合物中的质量百分比浓度为2wt%~5wt%。
优选地,所述手性剂的分子结构式为
具体地,所述可聚合单体330为具有液晶性且端基含有双键的紫外可聚合单体,这种紫外可聚合单体自身具有液晶性,端基含有双键,可以更好的溶解到液晶分子中。
优选地,所述可聚合单体330为:1,4-双(4-(6’-丙烯氧基己氧基)苯甲酰氧基)-2-甲苯,其分子结构式为
具体地,可聚合单体330在液晶组合物中的质量百分比浓度为0.1wt%-25wt%。
具体地,液晶组合物中的量子点材料320包括:光致红色发光量子点、光致绿色发光量子点、及光致蓝色发光量子点;光致红色发光量子点在液晶组合物中的质量百分比浓度为0.01wt%-2wt%;光致绿色发光量子点在液晶组合物中的质量百分比浓度为0.01wt%-2wt%;光致蓝色发光量子点在液晶组合物中的质量百分比浓度为2wt%以下。
进一步地,液晶组合物中的量子点材料320为经过表面修饰的量子点,其表面具有配体分子。具体的,该量子点的材料为CdS,CSe,CTe,PbS,PbSe,PbTe,ZnS,ZnSe,ZnTe,HgS,HgSe,HgTe,GaS,GaSe,Gae,InS,InSe,InTe中的一种或多种,包括以上任意材料组合形成的核壳结构;配体分子主要为带液晶基团的配体,表面具有配体分子的量子点材料320为亲油性,从而可使量子点材料320更好地在蓝相液晶310中分散。具体的,量子点材料320的表面修饰方法可以为微胶囊法、微乳液法、复合法、及表面活性剂法。
具体地,液晶组合物中的量子点材料320为具有不同粒径颗粒的混合物,形成量子点材料320的量子点的尺寸为1-30nm。
步骤3、如图4所示,将TFT阵列基板100和彩色滤光片基板200进行对组,得到液晶盒。
步骤4、如图5所示,对所述液晶盒加热至其内的液晶材料310的清亮点后进行降温,当温度降至液晶材料310的蓝相温域时保持温度恒定,从TFT阵列基板100侧对液晶盒进行紫外光照射,使其内的可聚合单体330聚合形成聚合物网络,得到夹设于所述TFT阵列基板100和彩色滤光片基板200之间的液晶层300,此时,所述液晶层300内的液晶材料310为蓝相液晶。
值得一提的是,由于液晶组合物中的量子点材料320的粒径为纳米级别,可拓宽液晶材料310的蓝相温域,即在步骤4的可聚合单体330聚合前已拓了宽液晶材料310的蓝相温域,从而降低了该步骤4的可聚合单体330在蓝相温域聚合的精度要求,降低了聚合制程的难度。
具体地,步骤4中,对液晶盒的降温速度为0.01℃/min-2℃/min。
步骤5、如图6所示,在TFT阵列基板100上远离所述液晶层300一侧贴设下偏光片410,在彩色滤光片基板200上远离所述液晶层300一侧设贴上偏光片420,得到液晶显示面板1。
步骤6、提供背光模组2,将液晶显示面板1与背光模组2进行组合,完成液晶显示装置的制作。
具体地,所述背光模组2为发出蓝光背光的蓝光背光模组;可选的,所述步骤2中提供的液晶组合物中量子点材料320也可不包括光致蓝色发光量子点。
具体地,该液晶显示装置制作方法制作的液晶显示装置为蓝相液晶液晶显示装置,由于蓝相液晶响应时间可小于1ms,所制作的液晶显示装置的响应速度得到提升,同时由于蓝相液晶的特性,该液晶显示装置的制作方法中无需进行配向层制程,能够降低制程的难度减少生产成本,可聚合单体330在液晶材料310处于蓝相温域时接收紫外光照射产生聚合,形成聚合物网络,能够稳定蓝相液晶,拓宽蓝相温域,降低了蓝相液晶应用的难度,量子点材料320作为纳米粒子,可拓宽液晶材料310的蓝相温域,即在可聚合单体330聚合前已拓液晶材料310的蓝相温域,使可聚合单体聚合制程的难度降低,并且能降低磁滞现象,实现零磁滞效果,同时由于量子点材料的特性,该液晶显示装置制作方法制作的液晶显示装置的背光的利用率及显示色域提高,提升液晶显示装置性能,使液晶显示装置可用于快速显示及3D显示领域。
综上所述,本发明的液晶显示装置,为蓝相液晶显示装置,无需配向层,形成液晶层的液晶组合物包括液晶材料、混合于所述液晶材料中的量子点材料、可聚合单体、及手性剂;所述可聚合单体在形成液晶层时在液晶材料的蓝相温域下聚合形成聚合物网络,能够稳定蓝相液晶、拓宽液晶材料的蓝相温域,所述量子点材料的粒径为纳米级别,能够拓宽蓝相液晶温域,即在可聚合单体聚合前已将液晶材料的蓝相温域拓宽,从而降低了聚合制程的温度精度要求,并且量子点材料可改善磁滞现象,同时提升了液晶显示装置的背光的利用率及显示色域,使该液晶显示装置可用于快速显示及3D显示领域。本发明提供的液晶显示装置的制作方法,形成液晶层的液晶组合物包括液晶材料、混合于所述液晶材料中的量子点材料、可聚合单体、及手性剂,在液晶材料处于蓝相温域时利用紫外光对可聚合单体进行照射使其聚合形成聚合物网络,从而形成了具有宽温域、低磁滞效应的蓝相液晶显示装置,省去液晶显示装置中配向层的制作,降低成本,提高了液晶显示装置的响应速度,并且提高液晶显示装置的背光利用率及显示色域。
以上所述,对于本领域的普通技术人员来说,可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形,而所有这些改变和变形都应属于本发明后附的权利要求的保护范围。
Claims (9)
1.一种液晶显示装置,其特征在于,包括:液晶显示面板(1)、及位于液晶显示面板(1)下方的背光模组(2);
所述液晶显示面板(1)包括相对设置的TFT阵列基板(100)和彩色滤光片基板(200)、夹设于所述TFT阵列基板(100)和彩色滤光片基板(200)之间的液晶层(300)、设于所述TFT阵列基板(100)上远离所述液晶层(300)一侧的下偏光片(410)、及设于所述彩色滤光片基板(200)上远离所述液晶层(300)一侧的上偏光片(420);
所述液晶层(300)由一液晶组合物所形成,该液晶组合物包括液晶材料(310)、混合于所述液晶材料(310)中的量子点材料(320)、可聚合单体(330)、及手性剂;
所述液晶层(300)中的液晶材料(310)为蓝相液晶;
所述可聚合单体(330)在形成液晶层(300)时在所述液晶材料(310)的蓝相温域下聚合形成聚合物网络;
所述液晶组合物中的量子点材料(320)为表面经过修饰具有配体分子的量子点;
所述量子点的材料为CdS,CSe,CTe,PbS,PbSe,PbTe,ZnSe,ZnTe,HgS,HgSe,HgTe,GaS,GaSe,InS,InSe,InTe中的一种或多种,该量子点的尺寸为1-30nm。
2.如权利要求1所述的液晶显示装置,其特征在于,所述可聚合单体(330)在液晶组合物中的质量百分比浓度为0.1wt%-25wt%。
3.如权利要求1所述的液晶显示装置,其特征在于,所述液晶组合物中的量子点材料(320)包括:光致红色发光量子点、光致绿色发光量子点、及光致蓝色发光量子点;
所述光致红色发光量子点在液晶组合物中的质量百分比浓度为0.01wt%-2wt%;所述光致绿色发光量子点在液晶组合物中的质量百分比浓度为0.01wt%-2wt%;所述光致蓝色发光量子点在液晶组合物中的质量百分比浓度为小于2wt%。
4.如权利要求1所述的液晶显示装置,其特征在于,所述TFT阵列基板(100)包括:第一衬底基板、设于所述第一衬底基板上的TFT阵列、及设于所述TFT阵列上的电极层;
所述彩色滤光片基板(200)包括:第二衬底基板(210)、设于所述第二衬底基板(210)上的黑色矩阵(230)、设于所述第二衬底基板(210)及黑色矩阵(230)上的彩色滤光层(220)、及设于所述彩色滤光层(220)上的柱状隔垫物;
所述背光模组(2)为蓝光背光模组。
5.一种液晶显示装置的制作方法,包括以下步骤:
步骤1、提供一TFT阵列基板(100)和一彩色滤光片基板(200);
步骤2、提供一液晶组合物,将所述液晶组合物滴加在TFT阵列基板(100)或彩色滤光片基板(200)上;
所述液晶组合物包括液晶材料(310)、混合于所述液晶材料(310)中的量子点材料(320)、可聚合单体(330)、及手性剂;
此时,液晶组合物中的液晶材料(310)为向列相液晶;
步骤3、将TFT阵列基板(100)和彩色滤光片基板(200)对组,得到液晶盒;
步骤4、对所述液晶盒加热至液晶材料(310)的清亮点后进行降温,当温度降至液晶材料(310)的蓝相温域时保持温度恒定,从TFT阵列基板(100)侧对所述液晶盒进行紫外光照射,使其内的可聚合单体(330)聚合形成聚合物网络,得到夹设于所述TFT阵列基板(100)和彩色滤光片基板(200)之间的液晶层(300),此时,所述液晶层(300)内的液晶材料(310)为蓝相液晶;
步骤5、在所述TFT阵列基板(100)上远离所述液晶层(300)一侧贴设下偏光片(410),在所述彩色滤光片基板(200)上远离所述液晶层(300)一侧贴设上偏光片(420),得到液晶显示面板(1);
步骤6、提供背光模组(2),将液晶显示面板(1)与背光模组(2)进行组合,完成液晶显示装置的制作;
所述液晶组合物中的量子点材料(320)为表面经过修饰具有配体分子的量子点;
所述量子点的材料为CdS,CSe,CTe,PbS,PbSe,PbTe,ZnSe,ZnTe,HgS,HgSe,HgTe,GaS,GaSe,InS,InSe,InTe中的一种或多种,该量子点的尺寸为1-30nm。
6.如权利要求5所述的液晶显示装置的制作方法,其特征在于,所述步骤2提供的液晶组合物中,所述量子点材料(320)包括:光致红色发光量子点、光致绿色发光量子点、及光致蓝色发光量子点;
所述光致红色发光量子点在液晶组合物中的质量百分比浓度为0.01wt%-2wt%;所述光致绿色发光量子点在液晶组合物中的质量百分比浓度为0.01wt%-2wt%;所述光致蓝色发光量子点在液晶组合物中的质量百分比浓度为小于2wt%。
7.如权利要求5所述的液晶显示装置的制作方法,其特征在于,所述步骤2提供的液晶组合物,可聚合单体(330)在液晶组合物中的质量百分比浓度为0.1wt%-25wt%。
8.如权利要求5所述的液晶显示装置的制作方法,其特征在于,所述步骤4中,对所述液晶盒的降温速度为0.01℃/min-2℃/min。
9.如权利要求5所述的液晶显示装置的制作方法,其特征在于,所述TFT阵列基板(100)包括:第一衬底基板、设于所述第一衬底基板上的TFT阵列、及设于所述TFT阵列上的电极层;
所述彩色滤光片基板(200)包括:第二衬底基板(210)、设于所述第二衬底基板(210)上的黑色矩阵(230)、设于所述第二衬底基板(210)及黑色矩阵(230)上的彩色滤光层(220)、及设于所述彩色滤光层(220)上的柱状隔垫物;
所述背光模组(2)为蓝光背光模组。
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CN106292037B (zh) * | 2016-10-10 | 2019-06-14 | 南京中电熊猫液晶显示科技有限公司 | 蓝相液晶阵列基板 |
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