CN109422987A - 平坦层用组合物、其制备方法、平坦层材料及显示装置 - Google Patents
平坦层用组合物、其制备方法、平坦层材料及显示装置 Download PDFInfo
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Abstract
本发明涉及显示领域,特别涉及平坦层组合物、其制备方法、平坦层材料、包括所述平坦层材料的显示基板及显示装置。所述平坦层组合物包括如下组分:10~30wt%的苯乙烯;10~30wt%的环氧树脂;1~3wt%的交联剂;0.1~0.5wt%的光引发剂和/或热引发剂;1~3wt%的表面活性剂;40~77wt%的溶剂。所述平坦层组合物以苯乙烯为主要单体成分,经引发剂引发可发生固化,得到平坦层材料。该种组成的平坦层材料具有更优的介电性能、更低的密度和更低的吸湿率、高电学稳定性等物理特性,保证了显示基板的各方面性能。
Description
技术领域
本发明涉及显示领域,特别涉及平坦层用组合物、其制备方法、平坦层材料及显示装置。
背景技术
薄膜晶体管液晶显示器(Thin Film Transistor Liquid Crystal Display,简称TFT-LCD)的主要结构包括对盒在一起的阵列基板和彩膜基板(CF)。
彩膜基板主要包括:玻璃基板、黑矩阵(Black Matrix,简称BM)、彩色光阻和平坦(Overcoat,简称OC)层。彩色光阻包括红(Red)、绿(Green)、蓝(Blue)着色层,为了保证彩膜基板的色彩均匀性与防止漏光,RGB彩色光阻与BM之间存在一定宽度的搭接,通常这个宽度在3微米以上;且搭接区域的RGB彩色光阻的高度较其他区域偏高,从而产生较大的角段差;为了消除此角段差,需要在RGB表面涂覆一层OC材料以保证CF的表面平坦性,从而保证取向层(PI)摩擦(rubbing)的均匀性来实现高画面品质;此外,OC层还可以作为保护层以防止着色层中的小分子物质迁移至液晶层,污染液晶造成色度不均。
在TFT-LCD领域的实际应用中,OC材料的基本物理特性对其成型工艺及相关不良具有较大影响。比如增加OC材料的交联度,减少烘烤(Oven)工艺中的OC涂布层流动,可改善引角对(Oven Pin MURA);改变OC材料类型,改善吸湿性,可减少VAS Time,可控制平坦度,表面张力等。此外,OC材料的吸湿性对OC工艺间隔时间(tact time)及产品品质具有很大的影响,例如周边气泡(bubble)、框色泽不均(mura)及VAS time等等。
目前OC材料主要以聚丙烯酸丙烯酸树脂-环氧树脂为基本结构组成,通过加入交联剂、表面改性剂、溶剂等得到工艺可用OC涂覆原材料。丙烯酸树脂作为主要结构组分之一,虽然表现出较高的光学特性,但在吸湿性、介电性能上存在可改善空间,最常用的丙烯酸树脂为聚甲基丙烯酸甲酯。
发明内容
本发明要解决的技术问题是:提供一种平坦层用组合物及其制备方法,所述平坦层用组合物经交联固化后形成的平坦层材料具备优异的介电性能、密度低和吸湿率低等特点。
本发明公开了一种平坦层用组合物,包括如下组分:
10~30wt%的苯乙烯;
10~30wt%的环氧树脂;
1~3wt%的交联剂;
0.1~0.5wt%的光引发剂和/或热引发剂;
1~3wt%的表面活性剂;
40~77wt%的溶剂。
优选地,还包括:丙烯酸酯,所述丙烯酸酯与苯乙烯的总含量为10~30wt%。
优选地,所述丙烯酸酯与苯乙烯的质量比为1:(1~5)。
优选地,所述交联剂为二乙烯基苯。
优选地,所述表面活性剂为醇醚磷酸酯、烷基酚聚氧乙烯21醚和蓖麻油聚氧乙烯20醚中的一种或多种;所述溶剂为丙二醇甲醚醋酸酯、乙二醇二甲醚和二乙二醇二甲醚中的一种或多种;所述热引发剂为过氧化二苯甲酰、N,N-二甲基苯胺和偶氮二异丁腈中的一种或多种;所述光引发剂为二苯基乙酮、α,α-二甲氧基-α-苯基苯乙酮、α,α-二乙氧基苯乙酮、α-羟烷基苯酮、二苯甲酮和2,4-二羟基二苯甲酮中一种或多种。
本发明公开了一种平坦层用组合物的制备方法,包括以下步骤:
将10~30wt%的苯乙烯、10~30wt%的环氧树脂、1~3wt%的交联剂、0.1~0.5wt%的光引发剂和/或热引发剂、1~3wt%的表面活性剂、40~77wt%的溶剂混合,得到平坦层用组合物。
优选地,所述制备方法具体为:
S1-1:将10~30wt%的苯乙烯和交联剂混合,反应得到聚苯乙烯预聚体;
S1-2:将所述聚苯乙烯预聚体与10~30wt%的环氧树脂、交联剂、0.1~0.5wt%的光引发剂和/或热引发剂、1~3wt%的表面活性剂和40~77wt%的溶剂混合,得到平坦层用组合物;
S1-1和S1-2中,所述交联剂的总添加量为1~3wt%。
优选地,所述制备方法具体为:
S2-1:将10~30wt%的苯乙烯、交联剂和热引发剂混合,反应得到聚苯乙烯预聚体;
S2-2:将所述聚苯乙烯预聚体与10~30wt%的环氧树脂、交联剂、光引发剂和/或热引发剂、1~3wt%的表面活性剂和40~77wt%的溶剂混合,得到平坦层用组合物;
S2-1和S2-2中,所述交联剂的总添加量为1~3wt%;
S2-1和S2-2中,热引发剂的总添加量0.1~0.5wt%;
或者S2-1和S2-2中,热引发剂和光引发剂的总添加量为0.1~0.5wt%。
优选地,在添加所述环氧树脂时还添加丙烯酸酯,所述丙烯酸酯与苯乙烯的总含量为10~30wt%。
本发明公开了一种平坦层材料,由上述技术方案所述的平坦层用组合物经交联固化后得到。
优选地,所述交联固化的方法为加热,加热时间为150~250℃,加热的时间为5~15分钟;或者所述交联固化的方法为紫外线照射,紫外线照射的时间为5~10分钟。
本发明公开了一种显示基板,所述显示基板中的平坦层采用如上述技术方案所述的平坦层用组合物经交联固化后得到。
本发明还公开了一种显示装置,包括上述技术方案所述的显示基板。
与现有技术相比,本发明的平坦层组合物包括如下组分:10~30wt%的苯乙烯;10~30wt%的环氧树脂;1~3wt%的交联剂;0.1~0.5wt%的光引发剂和/或热引发剂;1~3wt%的表面活性剂;40~77wt%的溶剂。所述平坦层组合物以苯乙烯为主要单体成分,经引发剂引发可发生固化,得到交联聚苯乙烯和环氧树脂的混合物,即平坦层材料。该种组成的平坦层材料具有更优的介电性能、更低的密度和更低的吸湿率、高电学稳定性等物理特性。实验结果表明,本发明得到的平坦层材料的密度(g/cm3)为1.05~1.1;介电常数为2.5~3;介电损耗为~10-3;吸水率(%)<10-3;体积电阻率(Ω/cm)>1016。
附图说明
图1为本发明一些实施例制备平坦层用组合物的流程图;
图2为本发明另一些实施例制备平坦层用组合物的流程图。
具体实施方式
为了进一步理解本发明,下面结合实施例对本发明优选实施方案进行描述,但是应当理解,这些描述只是为进一步说明本发明的特征和优点,而不是对本发明权利要求的限制。
本发明的实施例公开了一种平坦层用组合物,包括如下组分:
10~30wt%的苯乙烯;
10~30wt%的环氧树脂;
1~3wt%的交联剂;
0.1~0.5wt%的光引发剂和/或热引发剂;
1~3wt%的表面活性剂;
40~77wt%的溶剂。
在本发明的实施例中,所述平坦层组合物包括苯乙烯、环氧树脂、交联剂、光引发剂和/或热引发剂、表面活性剂和溶剂。其中,所述苯乙烯为主要单体成分,固化后得到交联聚苯乙烯结构为主体结构的平坦层材料。
所述苯乙烯的含量为10~30wt%,在一些实施例中,所述苯乙烯的含量可以为10~15wt%;在一些实施例中,所述苯乙烯的含量可以为15~25wt%;在另外一些实施例中,所述苯乙烯的含量还可以为25~30wt%。苯乙烯含量越高,对于制备平坦层材料的介电性能、密度以及吸湿率的影响越大,平坦层材料的各方面性能越好。
优选地,所述平坦层组合物还包括:丙烯酸酯,所述丙烯酸酯可以为甲基丙烯酸甲酯、丙烯酸甲酯、丙烯酸乙酯等,所述丙烯酸酯与苯乙烯的总含量为10~30wt%。所述丙烯酸酯与苯乙烯的质量比优选为1:(1~5)。苯乙烯单体部分代替传统丙烯酸酯,也可以实现本申请的发明目的。所述平坦层组合物中包括:1~3wt%的交联剂;在一些实施例中,包括1.5~2.5wt%的交联剂。所述含量的交联剂可使苯乙烯形成更好的交联网络。所述交联剂优选为二乙烯基苯。所述交联剂可与苯乙烯发生反应,形成交联结构。
所述平坦层组合物中包括:1~3wt%的表面活性剂;在一些实施例中,包括1.5~2.5wt%的表面活性剂。所述表面活性剂优选为醇醚磷酸酯、烷基酚聚氧乙烯21醚和蓖麻油聚氧乙烯20醚中的一种或多种。
所述平坦层组合物中包括:40~77wt%的溶剂。所述溶剂优选为丙二醇甲醚醋酸酯、乙二醇二甲醚和二乙二醇二甲醚中的一种或多种;
所述平坦层组合物中包括:0.1~0.5wt%的光引发剂和/或热引发剂。在本发明的实施例中,可以单独添加光引发剂,或者单独添加热引发剂;也可以同时添加光引发剂和热引发剂。
所述热引发剂优选为过氧化二苯甲酰、N,N-二甲基苯胺和偶氮二异丁腈中的一种或多种;所述光引发剂优选为二苯基乙酮、α,α-二甲氧基-α-苯基苯乙酮、α,α-二乙氧基苯乙酮、α-羟烷基苯酮、二苯甲酮和2,4-二羟基二苯甲酮的一种或多种。
本发明实施例公开了一种平坦层用组合物的制备方法,具体参见图1。所述制备方法包括以下步骤:
将10~30wt%的苯乙烯、10~30wt%的环氧树脂、1~3wt%的交联剂、0.1~0.5wt%的光引发剂和/或热引发剂、1~3wt%的表面活性剂、40~77wt%的溶剂混合,得到平坦层用组合物。
在本发明的实施例中,将各组分混合均匀后,即可得到平坦层用组合物。所述平坦层用组合物可直接涂覆于其他涂层的表面,然后再进行固化以形成平坦层。
优选地,具体参见图2,所述制备方法具体为:
S1-1:将10~30wt%的苯乙烯和交联剂混合,反应得到聚苯乙烯预聚体;
S1-2:将所述聚苯乙烯预聚体与10~30wt%的环氧树脂、交联剂、0.1~0.5wt%的光引发剂和/或热引发剂、1~3wt%的表面活性剂和40~77wt%的溶剂混合,得到平坦层用组合物;
所述交联剂的总添加量为1~3wt%。
按照本发明的实施例,首先将苯乙烯与部分交联剂进行混合,反应得到聚苯乙烯预聚体。经过聚合,苯乙烯单体形成聚合物。所述反应的时间优选为0.5~1小时。
得到聚苯乙烯预聚体后,将所述聚苯乙烯预聚体与环氧树脂,另一部分交联剂,光引发剂和/或热引发剂、表面活性剂和溶剂进行混合,得到平坦层用组合物。步骤S1-1和步骤S1-2中交联剂的总添加量为1~3wt%。
所述方法制备平坦层用组合物,经过固化后,聚合物链状结构较长,交联结构更好。
优选地,所述制备方法还可以为:
S2-1:将10~30wt%的苯乙烯、交联剂和热引发剂混合,反应得到聚苯乙烯预聚体;
S2-2:将所述聚苯乙烯预聚体与10~30wt%的环氧树脂、交联剂、光引发剂和/或热引发剂、1~3wt%的表面活性剂和40~77wt%的溶剂混合,得到平坦层用组合物;
所述交联剂的总添加量为1~3wt%,光引发剂和/或热引发剂的总添加量0.1~0.5wt%。
在所述的优选方案中,步骤S2-1中,添加部分热引发剂,有利于苯乙烯和交联剂更好的反应,以得到聚苯乙烯预聚体。步骤S2-2中,可以添加部分热引发剂,或者添加光引发剂,或者同时添加光引发剂和热引发剂。由于考虑到后续固化步骤的简便性,一般在S2-2中仅添加一种引发剂,光引发剂或者热引发剂。
步骤S2-1和步骤S2-2中交联剂的总添加量为1~3wt%,光引发剂和/或热引发剂的总添加量0.1~0.5wt%。即当S2-1和S2-2中同时添加热引发剂时,热引发剂的总添加量0.1~0.5wt%;或者S2-1中添加热引发剂,S2-2中添加光引发剂时,热引发剂和光引发剂的总添加量为0.1~0.5wt%。
优选地,在添加所述环氧树脂时还添加丙烯酸酯,所述丙烯酸酯与苯乙烯的总含量为10~30wt%。
即所述平坦层用组合物的制备方法为:
S3-1:将苯乙烯和交联剂混合,反应得到聚苯乙烯预聚体;
S3-2:将所述聚苯乙烯预聚体与10~30wt%的环氧树脂、交联剂、丙烯酸酯、0.1~0.5wt%的光引发剂和/或热引发剂、1~3wt%的表面活性剂和40~77wt%的溶剂混合,得到平坦层用组合物;
所述交联剂的总添加量为1~3wt%,所述丙烯酸酯与苯乙烯的总含量为10~30wt%。
或者所述平坦层用组合物的制备方法为:
S4-1:将苯乙烯、热引发剂和交联剂混合,反应得到聚苯乙烯预聚体;
S4-2:将所述聚苯乙烯预聚体与10~30wt%的环氧树脂、交联剂、丙烯酸酯、光引发剂和/或热引发剂、1~3wt%的表面活性剂和40~77wt%的溶剂混合,得到平坦层用组合物;
在所述的优选方案中,步骤S4-1中,添加部分热引发剂,有利于苯乙烯和交联剂更好的反应,以得到聚苯乙烯预聚体。步骤S4-1和步骤S4-2中交联剂的总添加量为1~3wt%,所述丙烯酸酯与苯乙烯的总含量为10~30wt%;光引发剂和/或热引发剂的总添加量0.1~0.5wt%,即S4-1和S4-2中,热引发剂的总添加量0.1~0.5wt%;或者S4-1和S4-2中,热引发剂和光引发剂的总添加量为0.1~0.5wt%。
本发明的实施例公开了一种平坦层材料,将上述技术方案所述的平坦层用组合物经交联固化后得到。
即所述平坦层材料,由如下组分经交联固化得到:
10~30wt%的苯乙烯;
10~30wt%的环氧树脂;
1~3wt%的交联剂;
0.1~0.5wt%的光引发剂和/或热引发剂;
1~3wt%的表面活性剂;
40~77wt%的溶剂。
在光引发剂和/或热引发剂作用下,苯乙烯、交联剂发生聚合反应以及交联反应,实现固化,从而得到平坦层材料。
所述平坦层组合物经过涂、固化,可以得到平坦层。
优选地,所述交联固化的方法为加热,加热时间为150~250℃,加热的时间为5~15分钟;或者所述交联固化的方法为紫外线照射,紫外线照射的时间为5~10分钟。
本发明的实施例还公开了一种显示基板,所述显示基板中的平坦层采用上述技术方案所述的平坦层用组合物经交联固化后得到。本发明的实施例还公开了一种显示装置,包括所述的显示基板。
为了进一步理解本发明,下面结合实施例对本发明提供的平坦层组合物及其制备方法进行详细说明,本发明的保护范围不受以下实施例的限制。
实施例1平坦层组合物成分及含量(总量以100%记)如下:
组分1:苯乙烯和丙烯酸酯占30wt%,其中苯乙烯与丙烯酸酯比例在1:5;丙烯酸酯可选用甲基丙烯选甲酯;
组分2:环氧树脂占10wt%;
组分3:二乙烯基苯占1wt%
组分4:醇醚磷酸酯占1wt%;
组分5:过氧化二苯甲酰占0.1wt%;
组分6:丙二醇甲醚醋酸酯占57.9wt%;
制备方法为:将上述组分混合均匀,即可用以涂覆使用,在150~250℃的温度下固化15~30min,完成固化,得到平坦层材料。
对于实施例1制备的平坦层材料,进行性能测试,以现有平坦层材料为对比,具体参见表1。
表1
实施例2
平坦层组合物成分及含量(总量以100%记)如下:
组分1:苯乙烯占10wt%;
组分2:环氧树脂占30wt%;
组分3:二乙烯基苯占1.5wt%
组分4:烷基酚聚氧乙烯(21)醚占3wt%;
组分5:N,N-二甲基苯胺占0.3wt%;
组分6:乙二醇二甲醚占55.2wt%;
制备方法为:将上述组分混合均匀,即可用以涂覆使用,在150~250℃的温度下固化15~30min,完成固化,得到平坦层材料。
实施例3
平坦层组合物成分及含量(总量以100%记)如下:
组分1:苯乙烯和丙烯酸酯占20wt%,其中苯乙烯与丙烯酸酯比例在1:1;丙烯酸酯可选用甲基丙烯选甲酯;
组分2:环氧树脂占20wt%;
组分3:二乙烯基苯占2wt%
组分4:蓖麻油聚氧乙烯(20)醚2wt%;
组分5:二苯基乙酮占0.5wt%;
组分6:二乙二醇二甲醚占55.5wt%;
制备方法为:将上述组分混合均匀,即可用以涂覆使用,利用UV光(波长300~400nm)照射5~10min,然后在150℃~250℃的温度下固化5~15min,完成固化,得到平坦层材料。
实施例4
平坦层组合物成分及含量(总量以100%记)如下:
组分1:苯乙烯占25wt%;
组分2:环氧树脂占25wt%;
组分3:二乙烯基苯占3wt%
组分4:醇醚磷酸酯占3wt%;
组分5:α,α-二甲氧基-α-苯基苯乙酮占0.5wt%;
组分6:乙二醇二甲醚占43.5wt%;
制备方法为:将上述组分混合均匀,即可用以涂覆使用,利用UV光(波长300~400nm)照射5~10min,然后在150℃~250℃的温度下固化5~15min,完成固化,得到平坦层材料。
实施例5
平坦层组合物成分及含量(总量以100%记)如下:
组分1:苯乙烯和丙烯酸酯占30wt%,其中苯乙烯与丙烯酸酯比例在1:5;丙烯酸酯可选用甲基丙烯选甲酯;
组分2:环氧树脂占10wt%;
组分3:二乙烯基苯占2.5wt%
组分4:醇醚磷酸酯占1wt%;
组分5:过氧化二苯甲酰占0.1wt%;
组分6:丙二醇甲醚醋酸酯占56.4wt%;
制备方法为:
将30wt%的苯乙烯和丙烯酸酯混合物、0.02wt%的过氧化二苯甲酰和1wt%二乙烯基苯混合,反应得到聚苯乙烯预聚体;
将所述聚苯乙烯预聚体与10wt%的环氧树脂、1.5wt%二乙烯基苯、0.0.08wt%的过氧化二苯甲酰、1wt%的醇醚磷酸酯和57.9wt%的丙二醇甲醚醋酸酯混合,得到平坦层用组合物;
所述平坦层组合物,即可用以涂覆使用,在150~250℃的温度下固化15~30min,完成固化,得到平坦层材料。
实施例6
平坦层组合物成分及含量(总量以100%记)如下:
组分1:苯乙烯占25wt%;
组分2:环氧树脂占25wt%;
组分3:二乙烯基苯占3wt%
组分4:醇醚磷酸酯占3wt%;
组分5:α,α-二甲氧基-α-苯基苯乙酮占0.5wt%;
组分6:乙二醇二甲醚占43.5wt%;
制备方法为:
将25wt%的苯乙烯和0.75wt%二乙烯基苯混合,反应得到聚苯乙烯预聚体;
将所述聚苯乙烯预聚体与25wt%的环氧树脂、2.25wt%二乙烯基苯、0.1wt%的过氧化二苯甲酰、3wt%的醇醚磷酸酯和43.5wt%的乙二醇二甲醚混合,得到平坦层用组合物;
上述平坦层组合物,即可用以涂覆使用,利用UV光(波长300~400nm)照射5~10min,然后在150℃~250℃的温度下固化5~15min完成固化,得到平坦层材料。
对于实施例6制备的平坦层材料,进行性能测试,以现有平坦层材料为对比,具体参见表2。
表2
本发明的发明人还对交联聚苯乙烯进行了性能上的研究,与现有聚甲基丙烯酸甲酯的性能进行对比,发现聚苯乙烯非常适用于添加到平坦层材料中。具体实验数据参见表3.
表3
以上实施例的说明只是用于帮助理解本发明的方法及其核心思想。应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以对本发明进行若干改进和修饰,这些改进和修饰也落入本发明权利要求的保护范围内。
对所公开的实施例的上述说明,使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的,本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下,在其它实施例中实现。因此,本发明将不会被限制于本文所示的这些实施例,而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。
Claims (13)
1.一种平坦层用组合物,其特征在于,包括如下组分:
10~30wt%的苯乙烯;
10~30wt%的环氧树脂;
1~3wt%的交联剂;
0.1~0.5wt%的光引发剂和/或热引发剂;
1~3wt%的表面活性剂;
40~77wt%的溶剂。
2.根据权利要求1所述的平坦层用组合物,其特征在于,还包括:丙烯酸酯,所述丙烯酸酯与苯乙烯的总含量为10~30wt%。
3.根据权利要求2所述的平坦层用组合物,其特征在于,所述丙烯酸酯与苯乙烯的质量比为1:(1~5)。
4.根据权利要求1所述的平坦层用组合物,其特征在于,所述交联剂为二乙烯基苯。
5.根据权利要求1所述的平坦层用组合物,其特征在于,所述表面活性剂为醇醚磷酸酯、烷基酚聚氧乙烯21醚和蓖麻油聚氧乙烯20醚中的任意一种或多种;所述溶剂为丙二醇甲醚醋酸酯、乙二醇二甲醚和二乙二醇二甲醚中的任意一种或多种;所述热引发剂为过氧化二苯甲酰、N,N-二甲基苯胺和偶氮二异丁腈中的任意一种或多种;所述光引发剂为二苯基乙酮、α,α-二甲氧基-α-苯基苯乙酮、α,α-二乙氧基苯乙酮、α-羟烷基苯酮、二苯甲酮和2,4-二羟基二苯甲酮中的任意一种或多种。
6.一种平坦层用组合物的制备方法,包括以下步骤:
将10~30wt%的苯乙烯、10~30wt%的环氧树脂、1~3wt%的交联剂、0.1~0.5wt%的光引发剂和/或热引发剂、1~3wt%的表面活性剂、40~77wt%的溶剂混合,得到平坦层用组合物。
7.根据权利要求6所述的制备方法,其特征在于,所述制备方法具体为:
S1-1:将10~30wt%的苯乙烯和交联剂混合,反应得到聚苯乙烯预聚体;
S1-2:将所述聚苯乙烯预聚体与10~30wt%的环氧树脂、交联剂、0.1~0.5wt%的光引发剂和/或热引发剂、1~3wt%的表面活性剂和40~77wt%的溶剂混合,得到平坦层用组合物;
S1-1和S1-2中,所述交联剂的总添加量为1~3wt%。
8.根据权利要求6所述的制备方法,其特征在于,所述制备方法具体为:
S2-1:将10~30wt%的苯乙烯、交联剂和热引发剂混合,反应得到聚苯乙烯预聚体;
S2-2:将所述聚苯乙烯预聚体与10~30wt%的环氧树脂、交联剂、光引发剂和/或热引发剂、1~3wt%的表面活性剂和40~77wt%的溶剂混合,得到平坦层用组合物;
S2-1和S2-2中,所述交联剂的总添加量为1~3wt%;
S2-1和S2-2中,热引发剂的总添加量0.1~0.5wt%;
或者S2-1和S2-2中,热引发剂和光引发剂的总添加量为0.1~0.5wt%。
9.根据权利要求6~8任意一项所述的制备方法,其特征在于,在添加所述环氧树脂时还添加丙烯酸酯,所述丙烯酸酯与苯乙烯的总含量为10~30wt%。
10.一种平坦层材料,其特征在于,由权利要求1~5任意一项所述的平坦层用组合物经交联固化后得到。
11.根据权利要求10所述的平坦层材料,其特征在于,所述交联固化的方法为加热,加热时间为150~250℃,加热的时间为5~15分钟;或者所述交联固化的方法为紫外线照射,紫外线照射的时间为5~10分钟。
12.一种显示基板,其特征在于,所述显示基板中的平坦层采用如权利要求1~5中任意一项所述的平坦层用组合物经交联固化后得到。
13.一种显示装置,其特征在于,包括如权利要求12所述的显示基板。
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EP18806960.3A EP3677641A4 (en) | 2017-08-30 | 2018-05-30 | COMPOSITION FOR COATING LAYER, MANUFACTURING METHOD FOR IT, COATING LAYER, DISPLAY SUBSTRATE AND DISPLAY DEVICE |
US16/304,749 US11332634B2 (en) | 2017-08-30 | 2018-05-30 | Composition for overcoat layer, preparation method for the same, overcoat layer material, display substrate and display device |
PCT/CN2018/089026 WO2019041923A1 (zh) | 2017-08-30 | 2018-05-30 | 平坦层用组合物、其制备方法、平坦层材料、显示基板及显示装置 |
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EP3677641A1 (en) | 2020-07-08 |
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WO2019041923A1 (zh) | 2019-03-07 |
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