CN104516039B - 量子点彩色滤光片的制作方法及液晶显示装置 - Google Patents
量子点彩色滤光片的制作方法及液晶显示装置 Download PDFInfo
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Abstract
本发明提供一种量子点彩色滤光片的制作方法及液晶显示装置,该量子点彩色滤光片的制作方法包括:步骤1、利用Bewendi法合成具有核壳结构的量子点(100),在制备过程中通过改变合成条件得到具有不同粒径大小的量子点,其中包括红光量子点(200)和绿光量子点(300);步骤2、将所述红光量子点和绿光量子点分别通过分散剂的作用对其表面进行处理,使其稳定分散,得到稳定化的红光量子点(200)与绿光量子点(300);步骤3、将所述稳定化的红光与绿光量子点分别与树脂、单体、光引发剂、及添加剂分散并溶解在溶剂中,形成含红光与绿光量子点的光敏分散液;步骤4、利用所述含红光与绿光量子点的光敏分散液形成像素图案。
Description
技术领域
本发明涉及显示技术领域,尤其涉及一种量子点彩色滤光片的制作方法及液晶显示装置。
背景技术
目前液晶显示器(LCD,Liquid Crystal Display)的色彩是依靠彩色滤光层(CF,color filter)来实现。CF层是由彩色光阻材料经过一系列黄光制程后形成的。常用的CF光阻材料是将树脂(polymer),单体(monomer),光引发剂(photo initator)和颜料(pigment)溶解和分散在溶剂(solvent)后形成的。
其中的颜料(pigment)是使CF实现彩色的物质。从背光(Backlight)发出的光,经过RGB CF层时,只有对应R、G、B波段的光透过,其他波段的光被颜料(pigment)吸收,所以光经过CF层后产生RGB颜色。目前常用的RGB颜料(pigment)有R254,R177,G58,B166。一方面,这些有机颜料的透射峰相对较宽,色浓度受限,使得液晶显示器很难实现更广的色域;另一方面,由于经过CF的光大部分被吸收(约66%的损失),只有很小部分光透过,因此对光的利用率极低(通常整体光利用率低于5%)。量子点(QDs,Quantum-Dots)是一些极其微小的半导体纳米晶体,由锌、镉、硒和硫原子组合而成,晶体中的颗粒直径不足10nm。与颜料(pigment)不同,量子点在受到电或光刺激时就会发光,并且发光波长极窄,颜色纯粹,发出的光线颜色由量子点的组成材料和直径大小,形状所决定。尺寸越小越偏向蓝光、越大越偏向红光,如果控制精确,就可以发出鲜艳的R,G,B光。因此,若将量子点应用在彩色光阻材料中,可以大大提高显示屏的亮度和画面的鲜艳度,还可以减少能耗。
现有量子点彩色滤光片均是置于液晶盒(cell)内。由于量子点和目前常用彩色滤光片中颜料(pigment)产生色彩的原理不同,量子点发光是受光激发后,量子点能带结构的变化,发出特定波长的光。液晶显示器中的背光经过下偏光片后,产生的是特定方向的线偏振光,当线偏振光激发量子点后,原本特定方向的偏振光的偏振状态会发生变化(消偏和偏振方向改变),因此,导致光路和亮度的不可控制性。
发明内容
本发明的目的在于提供一种量子点彩色滤光片的制作方法,该制作方法制程简单,容易实现。
本发明的另一目的在于提供一种液晶显示装置,将量子点彩色滤光片设于上、下偏光片之外,避免由于量子点对偏振状态的改变导致光利用率变低,从而使液晶显示装置具有更宽的色域和更高的亮度,同时节省能耗。
为实现上述目的,本发明提供一种量子点彩色滤光片的制作方法,包括如下步骤:
步骤1、利用Bewendi法合成具有核壳结构的量子点,在制备过程中通过改变合成条件得到具有不同粒径大小的量子点,其中包括红光量子点和绿光量子点,所述红光量子点的粒径为5~7nm,所述绿光量子点的粒径为3~5nm;
步骤2、将所述红光量子点和绿光量子点分别通过分散剂的作用对其表面进行处理,使其稳定分散,得到稳定化的红光量子点与绿光量子点;
步骤3、将所述稳定化的红光与绿光量子点分别与树脂、单体、光引发剂、及添加剂分散并溶解在溶剂中,形成含红光与绿光量子点的光敏分散液;
步骤4、利用所述含红光与绿光量子点的光敏分散液形成像素图案。
所述步骤1中,所述量子点的粒径范围为3~8nm,所述红光量子点的粒径为5~7nm,所述绿光量子点的粒径为3~5nm。
所述步骤1中量子点的制备过程包括:
步骤11、制备所述量子点的CdS核;
步骤12、制备包覆于所述CdS核外部的ZnS壳。
所述步骤3中,所述含红光量子点的光敏分散液中,以光敏分散液的总重量为基准,所述稳定化的红光量子点的含量为5~20wt%,所述树脂的含量为2~15wt%、所述单体的含量为3~10wt%,所述光引发剂的含量为0.1~0.6wt%,所述添加剂的含量为0.1~2wt%,所述溶剂的含量为70~90wt%;
所述含绿光量子点的光敏分散液中,以光敏分散液的总重量为基准,所述稳定化的绿光量子点的含量为5~20wt%,所述树脂的含量为2~15wt%、所述单体的含量为3~10wt%,所述光引发剂的含量为0.1~0.6wt%,所述添加剂的含量为0.1~2wt%,所述溶剂的含量为70~90wt%。
所述步骤2中的分散剂为小分子偶联剂或两亲性的高分子偶联剂。
所述步骤3中的树脂为聚丙烯酸酯类聚合物,所述单体为多羟基丙烯酸酯类单体,所述溶剂为丙二醇单甲醚酸酯等一种或多种的混合溶剂;所述光引发剂为苯乙酮类、双咪唑类、苯偶姻类或二苯甲酮;所述添加剂为流平剂、消泡剂和热稳定剂中的至少一种。
所述步骤4通过喷涂或图案化的方式形成像素图案。
本发明还提供一种液晶显示装置,包括液晶面板和设于所述液晶面板下方的背光模组,所述液晶面板包括相对设置的第一基板与第二基板、设于所述第一基板与第二基板之间的液晶层、设于所述第一基板上远离液晶层一侧的上偏光板、设于所述第二基板上远离液晶层一侧的下偏光板、及设于所述背光模组与下偏光板之间的量子点彩色滤光片。
所述背光模组为蓝色荧光光源,所述量子点彩色滤光片上靠近下偏光板的一侧设有红光量子点像素图案和绿光量子点像素图案。
本发明的有益效果:本发明提供的量子点彩色滤光片的制作方法,制程简单,容易实现,并且较目前常用的RGB制程可减少一道蓝光量子点像素图案的制程。本发明提供的液晶显示装置,使用产生蓝色荧光的背光模组作为光源,其量子点彩色滤光片较目前常用的RGB制程减少一道蓝光量子点像素图案的制程,并将量子点彩色滤光片设于偏光片之外,避免由于量子点对偏振状态的改变导致光利用率变低,从而使液晶显示装置具有更宽的色域和更高的亮度,同时节省能耗。
附图说明
下面结合附图,通过对本发明的具体实施方式详细描述,将使本发明的技术方案及其他有益效果显而易见。
附图中,
图1为本发明量子点彩色滤光片的制作方法的流程示意图;
图2为本发明量子点彩色滤光片的制作方法步骤1-2的示意图;
图3为本发明液晶显示装置的结构示意图。
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,本发明提供一种量子点彩色滤光片的制作方法,包括:
步骤1、利用Bewendi法合成具有核壳结构的量子点100,在制备过程中通过改变合成条件可以得到具有不同粒径大小的量子点,其中包括红光量子点200和绿光量子点300。
具体地,请参阅图2,所述步骤1中量子点100的制备过程包括:
步骤11、制备所述量子点100的CdS核101。
步骤12、制备包覆于所述CdS核101外部的ZnS壳102。
其中,所述CdS核101的粒径为2~5nm,所述量子点100的粒径范围为3~8nm;所述红光量子点200的粒径为5~7nm,所述绿光量子点300的粒径为3~5nm。
值得一提的是,由于蓝光具有较高的能量,可以激发红光量子点(发红色光的量子点)和绿光量子点(发绿色光的量子点)分别产生红、绿光,因此可以使用产生蓝色荧光的背光模组作为光源,而蓝光由背光模组本身提供。因此,量子点彩色滤光片可以只制作红光量子点像素图案和绿光量子点像素图案,较目前常用的RGB制程可减少一道蓝光量子点像素图案的制程。
步骤2、将所述红光量子点和绿光量子点分别通过分散剂的作用对其表面进行处理,使其稳定分散,得到稳定化的红光量子点200与绿光量子点300。
所述步骤2中的分散剂为小分子偶联剂或两亲性的高分子偶联剂。
步骤3、将所述稳定化的红光与绿光量子点分别与树脂、单体、光引发剂、及添加剂分散并溶解在溶剂中,形成含红光与绿光量子点的光敏分散液。
具体的,所述光引发剂为苯乙酮类、双咪唑类、苯偶姻(安息香)类或二苯甲酮等;
所述苯乙酮类为α,α-二乙氧基苯乙酮、2-羟基-2-甲基-1-苯基-1-丙酮(HMPP)或2-甲基-2-吗啉代-1-(4-甲基苯硫基)丙烷-1-酮等;
所述苯偶姻(安息香)类为偶苯酰、二苯乙酮醇或苯偶姻醚等。
所述添加剂为流平剂、消泡剂和热稳定剂中的至少一种。
所述含红光量子点的光敏分散液中,以光敏分散液的总重量为基准,所述稳定化的红光量子点的含量为5~20wt%,所述树脂的含量为2~15wt%、所述单体的含量为3~10wt%,所述光引发剂的含量为0.1~0.6wt%,所述添加剂的含量为0.1~2wt%,所述溶剂的含量为70~90wt%。
所述含绿光量子点的光敏分散液中,以光敏分散液的总重量为基准,所述稳定化的绿光量子点的含量为5~20wt%,所述树脂的含量为2~15wt%、所述单体的含量为3~10wt%,所述光引发剂的含量为0.1~0.6wt%,所述添加剂的含量为0.1~2wt%,所述溶剂的含量为70~90wt%。
所述步骤3中的树脂为聚丙烯酸酯类聚合物,所述单体为多羟基丙烯酸酯类单体,所述溶剂为丙二醇单甲醚酸酯等一种或多种的混合溶剂。
步骤4、利用所述含红光与绿光量子点的光敏分散液形成像素图案。
所述步骤4可以通过喷涂或图案化的方式形成像素图案。具体地,所述图案化包括涂布、曝光、显影等制程。
请参阅图3,本发明还提供一种液晶显示装置,包括液晶面板1和设于所述液晶面板1下方的背光模组2,所述液晶面板1包括相对设置的第一基板11与第二基板12、设于所述第一基板11与第二基板12之间的液晶层13、设于所述第一基板11上远离液晶层13一侧的上偏光板111、设于所述第二基板12上远离液晶层13一侧的下偏光板121、及设于所述背光模组2与下偏光板121之间的量子点彩色滤光片14。
由于量子点发出的光具有波长窄(半波峰小),色彩鲜艳(色浓度高)的特点,因此使用含量子点的彩色滤光片可以使液晶显示装置具有更宽的色域。同时,由于量子点的发光效率高(量子发光效率可达88%以上),可以使液晶显示装置的亮度更佳,即可以节省能耗。并且在该结构中,将量子点彩色滤光片设计在上、下偏光片之外,这样可以避免由于量子点对偏振状态的改变导致光利用率变低的问题。在该优选实施例中,量子点彩色滤光片置于背光模组和下偏光片之间。
所述背光模组2为蓝色荧光光源,所述量子点彩色滤光片14上靠近下偏光板121的一侧设有红光量子点像素图案141和绿光量子点像素图案142。由于蓝光具有较高的能量,可以激发红光量子点(发红色光的量子点)和绿光量子点(发绿色光的量子点)分别产生红、绿光,因此可以使用产生蓝色荧光的背光模组作为光源,而蓝光由背光模组本身提供。因此,量子点彩色滤光片可以只制作红光量子点像素图案和绿光量子点像素图案,较目前常用的RGB制程可减少一道蓝光量子点像素图案的制程。
综上所述,本发明提供的量子点彩色滤光片的制作方法,制程简单,容易实现,并且较目前常用的RGB制程可减少一道蓝光量子点像素图案的制程。本发明提供的液晶显示装置,使用产生蓝色荧光的背光模组作为光源,其量子点彩色滤光片较目前常用的RGB制程减少一道蓝光量子点像素图案的制程,并将量子点彩色滤光片设于偏光片之外,避免由于量子点对偏振状态的改变导致光利用率变低,从而使液晶显示装置具有更宽的色域和更高的亮度,同时节省能耗。
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 (2)
1.一种液晶显示装置,包括液晶面板(1)和设于所述液晶面板(1)下方的背光模组(2),其特征在于,所述液晶面板(1)包括相对设置的第一基板(11)与第二基板(12)、设于所述第一基板(11)与第二基板(12)之间的液晶层(13)、设于所述第一基板(11)上远离液晶层(13)一侧的上偏光板(111)、设于所述第二基板(12)上远离液晶层(13)一侧的下偏光板(121)、及设于所述背光模组(2)与下偏光板(121)之间的量子点彩色滤光片(14);
所述量子点彩色滤光片(14)上靠近下偏光板(121)的一侧设有红光量子点像素图案(141)和绿光量子点像素图案(142)。
2.如权利要求1所述的液晶显示装置,其特征在于,所述背光模组(2)为蓝色荧光光源。
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Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101983426B1 (ko) * | 2015-01-23 | 2019-09-11 | 삼성디스플레이 주식회사 | 감광성 수지 조성물 및 표시장치 |
KR102116971B1 (ko) * | 2015-01-23 | 2020-06-02 | 삼성디스플레이 주식회사 | 감광성 수지 조성물 및 표시장치 |
CN104880856B (zh) * | 2015-06-24 | 2018-04-27 | 京东方科技集团股份有限公司 | 一种彩色光阻剂及其应用、彩膜基板、液晶显示器 |
US10712483B2 (en) * | 2015-08-24 | 2020-07-14 | Samsung Electronics Co., Ltd. | Photosensitive compositions, quantum dot polymer composite pattern prepared therefrom, and electronic devices including the same |
CN105044972A (zh) | 2015-08-27 | 2015-11-11 | 深圳市华星光电技术有限公司 | 液晶显示面板和液晶显示装置 |
CN105044985A (zh) * | 2015-08-27 | 2015-11-11 | 深圳市华星光电技术有限公司 | 液晶显示器 |
KR102432351B1 (ko) * | 2015-10-07 | 2022-08-16 | 삼성디스플레이 주식회사 | 컬러 필터 및 이를 적용한 디스플레이 장치 |
CN105242442B (zh) * | 2015-10-08 | 2018-05-01 | 深圳市华星光电技术有限公司 | 量子点彩膜的制备方法 |
KR102508995B1 (ko) * | 2015-10-21 | 2023-03-10 | 삼성전자주식회사 | 감광성 조성물 및 이로부터 제조된 양자점-폴리머 복합체 패턴 |
CN105404046B (zh) * | 2015-12-04 | 2018-06-01 | 深圳市华星光电技术有限公司 | 量子点彩膜基板的制作方法 |
CN105629362B (zh) * | 2015-12-29 | 2018-02-02 | 东南大学 | 一种量子点与等离子体耦合的彩色滤色片制备方法 |
CN105929635A (zh) | 2016-04-29 | 2016-09-07 | 京东方科技集团股份有限公司 | 量子点光刻胶及其制备方法、显示基板和显示装置 |
CN105954914B (zh) * | 2016-06-22 | 2019-03-22 | 深圳市华星光电技术有限公司 | 一种液晶面板色阻层的制备方法 |
CN107065289B (zh) * | 2017-05-26 | 2020-06-09 | 海信视像科技股份有限公司 | 量子点彩色滤光片及制备方法、液晶面板、液晶显示设备 |
CN107768394A (zh) * | 2017-10-30 | 2018-03-06 | 上海集成电路研发中心有限公司 | 一种图像传感器及其制作方法 |
CN109100888A (zh) * | 2018-08-30 | 2018-12-28 | 深圳扑浪创新科技有限公司 | 一种液晶显示器件、一种像素化量子点颜色转换膜及其制备方法 |
CN109679007B (zh) * | 2018-12-29 | 2021-07-09 | 厦门市米宫科技有限公司 | 一种高分散性量子点注塑料米及其制备方法 |
CN111752100A (zh) * | 2019-03-29 | 2020-10-09 | 常州强力电子新材料股份有限公司 | 含有双咪唑类光引发剂的感光性树脂组合物及应用、彩色滤光片及图像显示装置 |
KR20220093953A (ko) | 2020-12-28 | 2022-07-05 | 삼성전자주식회사 | 코어쉘 양자점 및 이를 포함하는 전자 소자 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202511145U (zh) * | 2012-04-12 | 2012-10-31 | 京东方科技集团股份有限公司 | 一种背光模组及液晶显示器 |
CN103090277A (zh) * | 2013-01-30 | 2013-05-08 | 深圳市华星光电技术有限公司 | 背光模组及液晶显示装置 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050146258A1 (en) * | 1999-06-02 | 2005-07-07 | Shimon Weiss | Electronic displays using optically pumped luminescent semiconductor nanocrystals |
US8947619B2 (en) * | 2006-07-06 | 2015-02-03 | Intematix Corporation | Photoluminescence color display comprising quantum dots material and a wavelength selective filter that allows passage of excitation radiation and prevents passage of light generated by photoluminescence materials |
JP2009087760A (ja) * | 2007-09-28 | 2009-04-23 | Dainippon Printing Co Ltd | エレクトロルミネッセンス素子の製造方法 |
JP2009087783A (ja) * | 2007-09-28 | 2009-04-23 | Dainippon Printing Co Ltd | エレクトロルミネッセンス素子 |
KR101718066B1 (ko) * | 2010-06-04 | 2017-03-20 | 삼성전자 주식회사 | 양자점을 이용한 광원모듈, 이를 채용한 백라이트장치, 디스플레이장치, 및 조명장치 |
KR20120021731A (ko) * | 2010-08-16 | 2012-03-09 | 엘지이노텍 주식회사 | 양자점을 사용한 백라이트 유닛용 부재 및 그 제조 방법 |
KR101822537B1 (ko) * | 2011-03-31 | 2018-01-29 | 삼성디스플레이 주식회사 | 발광 다이오드 패키지, 이의 제조 방법, 및 이를 갖는 표시 장치 |
KR101840355B1 (ko) * | 2011-10-28 | 2018-05-08 | 엘지디스플레이 주식회사 | 고 투과율을 갖는 액정표시장치 |
KR101860935B1 (ko) * | 2012-03-15 | 2018-05-25 | 삼성디스플레이 주식회사 | 액정 표시 장치 및 그 제조 방법 |
US20130335677A1 (en) * | 2012-06-15 | 2013-12-19 | Apple Inc. | Quantum Dot-Enhanced Display Having Dichroic Filter |
CN103146262B (zh) * | 2012-12-12 | 2016-08-03 | 京东方科技集团股份有限公司 | 量子点在颜料分散液中的用途以及一种颜料分散液和其制备方法 |
TW201427893A (zh) * | 2013-01-07 | 2014-07-16 | 群康科技(深圳)有限公司 | 圖案化色轉換膜及應用其之顯示裝置 |
US9361856B2 (en) * | 2013-01-18 | 2016-06-07 | Google Inc. | Liquid crystal display with photo-luminescent material layer |
CN203084375U (zh) * | 2013-01-22 | 2013-07-24 | 北京京东方光电科技有限公司 | 一种显示装置 |
CN103226259B (zh) * | 2013-04-09 | 2015-07-01 | 北京京东方光电科技有限公司 | 液晶显示面板、显示装置及液晶显示面板的制造方法 |
CN103236435B (zh) * | 2013-04-23 | 2016-03-02 | 京东方科技集团股份有限公司 | 一种有机电致发光二极管显示装置 |
CN103408984A (zh) * | 2013-08-22 | 2013-11-27 | 广东普加福光电科技有限公司 | 光学涂层组合物、荧光光学膜片及其制备方法 |
CN103728837B (zh) * | 2013-12-30 | 2016-08-31 | 京东方科技集团股份有限公司 | 感光树脂组合物及用感光树脂组合物制备量子点图案的方法 |
CN103911142B (zh) * | 2014-03-26 | 2015-12-02 | 京东方科技集团股份有限公司 | 蓝色量子点复合颗粒、其制备方法、光电元件和光电设备 |
KR102223421B1 (ko) * | 2014-08-05 | 2021-03-08 | 삼성디스플레이 주식회사 | 표시장치 |
KR102293604B1 (ko) * | 2014-09-04 | 2021-08-24 | 삼성전자주식회사 | 자발광 액정 표시 장치 |
TWI537645B (zh) * | 2014-10-23 | 2016-06-11 | 群創光電股份有限公司 | 顯示裝置 |
-
2014
- 2014-12-23 CN CN201410812020.9A patent/CN104516039B/zh active Active
-
2015
- 2015-02-08 WO PCT/CN2015/072465 patent/WO2016101390A1/zh active Application Filing
- 2015-02-08 US US14/423,125 patent/US20160178966A1/en not_active Abandoned
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202511145U (zh) * | 2012-04-12 | 2012-10-31 | 京东方科技集团股份有限公司 | 一种背光模组及液晶显示器 |
CN103090277A (zh) * | 2013-01-30 | 2013-05-08 | 深圳市华星光电技术有限公司 | 背光模组及液晶显示装置 |
Non-Patent Citations (3)
Title |
---|
PAMAM树形分子模板法原位制备CdS-ZnS核-壳结构量子点;丛日敏;《高等学校化学学报》;20060531;第27卷(第5期);全文 * |
硅量子点发光的激活及其物理模型研究;黄伟其;《物理学报》;20120430;第61卷(第21期);全文 * |
表面处理对反相微乳液中Ⅱ-Ⅵ族量子点的影响;邱琦;《深圳大学学报(理工版)》;20110131;第28卷(第1期);全文 * |
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US20160178966A1 (en) | 2016-06-23 |
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US20180292714A1 (en) | 2018-10-11 |
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