CN114953663B - 一种柔性盖板、显示装置及柔性盖板的制备方法 - Google Patents

一种柔性盖板、显示装置及柔性盖板的制备方法 Download PDF

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CN114953663B
CN114953663B CN202210619518.8A CN202210619518A CN114953663B CN 114953663 B CN114953663 B CN 114953663B CN 202210619518 A CN202210619518 A CN 202210619518A CN 114953663 B CN114953663 B CN 114953663B
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时永祥
蔡宝鸣
卜德军
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BOE Technology Group Co Ltd
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Abstract

本发明实施例提供的一种柔性盖板及柔性盖板的制备方法,该柔性盖板包括:包括:硬化层、聚合物薄膜和柔性无机材料层;所述聚合物薄膜设置在所述硬化层和所述柔性无机材料层之间。本发明实施例中的柔性无机材料层具有很好的回复性能的硬度,能够提高柔性盖板的回复性能和硬度。

Description

一种柔性盖板、显示装置及柔性盖板的制备方法
本申请是申请号为“201910250671.6”,申请日为“2019.03.29”,发明名称为“一种柔性盖板、显示装置及柔性盖板的制备方法”的母案的分案申请
技术领域
本发明涉及显示技术领域,尤其涉及一种柔性盖板、显示装置及柔性盖板的制备方法。
背景技术
可弯折显示产品的市场占有率越来越大,可弯折显示产品依赖有机发光二极管(OLED)显示器件,可实现卷曲性及折叠性。折叠产品要求折叠半径达到1mm,对于这样的弯折条件,不仅对发光器件本身有较高的耐弯折要求,对于显示装置的模组材料如偏光片、盖板等都有很高的耐弯折性能的要求。
目前,通常是采用柔性薄膜加硬化层的结构形成显示盖板,这样的显示盖板存在硬度较低、盖板的回复性和抗冲击性能差,并且落球落笔性能不能达到使用需求的问题。
发明内容
本发明提供一种柔性盖板,以解决现有的柔性盖板的回复性和抗冲击性能差的问题。
本发明第一方面提供了一种柔性盖板,该柔性盖板包括:硬化层、聚合物薄膜和柔性无机材料层;
所述聚合物薄膜设置在所述硬化层和所述柔性无机材料层之间。
可选的,所述柔性无机材料层在所述聚合物薄膜所在的水平面的第一正投影位于所述聚合物薄膜内,所述柔性无机材料层的外围环绕设置缓冲材料,所述缓冲材料与所述聚合物薄膜贴合。
可选的,所述缓冲材料与所述柔性无机材料层之间具有尺寸范围为 0.05mm-0.4mm的间隙。
可选的,所述柔性无机材料层为柔性玻璃,所述柔性玻璃的厚度包括: 30μm-100μm。
可选的,所述聚合物薄膜的材料包括:聚酰亚胺、聚对苯二甲酸类、聚萘二甲酸乙二醇酯、聚甲基丙烯酸甲酯、聚氨酯、聚芳纶中的一种或多种。
可选的,所述聚合物薄膜的厚度包括:30μm-100μm。
可选的,所述硬化层的材料包括:硅氧烷聚合物和/或亚克力系聚合物,所述硬化层的厚度范围为5μm~20μm。
可选的,所述柔性无机层通过光学胶层与所述聚合物薄膜贴合。
可选的,所述光学胶层的材料包括:有机硅橡胶、丙烯酸型树脂、不饱和聚酯、聚氨酯、环氧树脂中一种或多种。
本发明第二方面提供一种显示装置,包括上述任意一项所述的柔性盖板。
可选的,所述柔性无机材料层的外围尺寸大于所述显示装置的有效显示区尺寸,且所述有效显示区在所述柔性无机材料层所在的水平面的第二正投影位于所述柔性无机材料层内,所述第二正投影的外边缘与所述无机材料层的外边缘的距离为0.2mm~0.5mm。
本发明第三方面提供一种柔性盖板的制备方法,包括:
在离型膜的一侧涂覆光学胶层;
在所述光学胶层远离所述离型膜的一侧贴合聚合物薄膜;
去除所述离型膜,并在所述光学胶层远离所述聚合物薄膜的一侧贴合柔性无机材料层。
可选的,所述去除所述离型膜,并在所述光学胶层远离所述聚合物薄膜的一侧贴合柔性无机材料层,包括:
去除所述离型膜的中间区域,并在所述中间区域贴合柔性无机材料层。
可选的,还包括:
去除所述离型膜的边缘区域,在所述边缘区域贴合缓冲材料,其中所述缓冲材料环绕所述柔性无机材料层设置,且与所述柔性无机材料层之间具有间隙。
可选的,所述方法还包括:
在所述聚合物薄膜远离所述光学胶层的一侧形成硬化层。
本发明实施例提供的一种柔性盖板,包括:硬化层、聚合物薄膜和柔性无机材料层;所述聚合物薄膜设置在所述硬化层和所述柔性无机材料层之间。本发明实施例中,柔性无机材料层具有很好的回复性能的硬度,能够提高柔性盖板的回复性能和硬度。
附图说明
为了更清楚地说明本发明实施例的技术方案,下面将对本发明实施例的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,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的一种柔性盖板的结构示意图;
图2是本发明实施例提供的一种柔性无机材料层和缓冲材料的平面结构示意图;
图3是本发明实施例提供的一种柔性无机材料层和显示区域的平面结构示意图;
图4是本发明实施例提供的一种柔性盖板制备方法的流程示意图;
图5是本发明实施例提供的一种柔性盖板制备方法的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
参照图1,提供了一种柔性盖板,包括:硬化层10、聚合物薄膜20和柔性无机材料层30;所述聚合物薄膜20设置在所述硬化层10和所述柔性无机材料层30之间。
在本发明实施例中,所述柔性无机材料层30在所述聚合物薄膜20所在的水平面的第一正投影位于所述聚合物薄膜20内,所述柔性无机材料层30 的外围环绕设置缓冲材料40,所述缓冲材料40与所述聚合物薄膜20贴合。
在本发明实施例中,参照图2,缓冲材料40环绕在柔性无机材料30的外围,当柔性盖板在跌落时,缓冲材料40可以保护柔性无机材料30。
在本发明实施例中,缓冲材料的宽度范围为0.5mm-10mm,优选为2mm。
参照图2,所述缓冲材料与所述柔性无机材料层之间具有尺寸范围为 0.05mm-0.4mm的间隙A。其中,间隙A优选为0.2mm,间隙A也可以起到缓冲撞击的作用。
在本发明实施例中,所述柔性无机材料层为柔性玻璃,所述柔性玻璃的厚度包括:30μm-100μm。其中,柔性玻璃为透明玻璃,有较高的回复性能和延展性能,柔性玻璃的厚度优选为70μm。
在本发明实施例中,所述聚合物薄膜的材料包括:聚酰亚胺、聚对苯二甲酸类、聚萘二甲酸乙二醇酯、聚甲基丙烯酸甲酯、聚氨酯、聚芳纶中的一种或多种。其中,缓冲材料也可以选择聚酰亚胺、聚对苯二甲酸类、聚萘二甲酸乙二醇酯、聚甲基丙烯酸甲酯、聚氨酯、聚芳纶中的一种或多种。
在本发明实施例中,所述聚合物薄膜的厚度包括:30μm-100μm;其中,聚合物薄膜的厚度优选为80μm。
在本发明实施例中,所述硬化层的材料包括:硅氧烷聚合物和/或亚克力系聚合物,所述硬化层的厚度范围为5μm~20μm,其中,硬化层的厚度优选为10μm。
在本发明实施例中,所述柔性无机层通过光学胶层50与所述聚合物薄膜贴合。
在本发明实施例中,所述光学胶层的材料包括:有机硅橡胶、丙烯酸型树脂、不饱和聚酯、聚氨酯、环氧树脂中一种或多种。
本发明实施例还提供一种显示装置,包括上述任意一项所述的柔性盖板。
其中,参照图3,所述柔性无机材料层30的外围尺寸大于所述显示装置的有效显示区尺寸B,且所述有效显示区在所述柔性无机材料层所在的水平面的第二正投影位于所述柔性无机材料层内,所述第二正投影的外边缘与所述无机材料层的外边缘的距离为0.2mm~0.5mm;其中,该距离优选为0.3mm。
在本发明实施例中,参照表一,列出本发明实施例中的柔性盖板的测试结果,可见,本发明实施例的柔性盖板有很好的抗冲击性能。
表一
本发明实施例提供的一种柔性盖板,包括:硬化层、聚合物薄膜和柔性无机材料层;所述聚合物薄膜设置在所述硬化层和所述柔性无机材料层之间。本发明实施例中的柔性无机材料层具有很好的回复性能和硬度,能够提高柔性盖板的回复性能和硬度。
实施例二
参照图4,本发明实施例提供了一种柔性盖板的制备方法,包括:
步骤201,参照图5中(a),在离型膜60的一侧涂覆光学胶层50。
在本发明实施例中,离型膜60的材料包括:聚对苯二甲酸或聚乙烯。
步骤202,参照图5中(a),在所述光学胶层50远离所述离型膜60 的一侧贴合聚合物薄膜20。
步骤203,去除所述离型膜60,并在所述光学胶层50远离所述聚合物薄膜20的一侧贴合柔性无机材料层30。
在本发明实施例中,可采用激光区域离型膜。
在本发明实施例中,步骤203,包括:
去除所述离型膜的中间区域,并在所述中间区域贴合柔性无机材料层。
参照图5中(b),沿箭头X的方向,去除离型膜60的中间区域,得到图5中(c)中边缘区域的离型膜;参照图5中(d),在中间区域贴合柔性无机材料层30。
其中,步骤203,还包括:
参照图5中(e)和图5中(f),去除所述离型膜的边缘区域,在所述边缘区域贴合缓冲材料,其中所述缓冲材料环绕所述柔性无机材料层设置,且与所述柔性无机材料层之间具有间隙。
在本发明实施例中,在步骤203之后还包括:
参照图1,在所述聚合物薄膜远离所述光学胶层的一侧形成硬化层。
在本发明实施例中,聚合物薄膜、柔性无机材料层、光学胶层、缓冲层及硬化层的材料及结构参照上述实施例一,在此不再赘述。
综上所述,采用本发明实施例制备方法制备的柔性盖板,包括:硬化层、聚合物薄膜和柔性无机材料层;所述聚合物薄膜设置在所述硬化层和所述柔性无机材料层之间。本发明实施例中的柔性无机材料层具有很好的回复性能的硬度,能够提高柔性盖板的回复性能和硬度。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以权利要求的保护范围为准。

Claims (10)

1.一种柔性盖板,其特征在于,包括:硬化层、聚合物薄膜和柔性无机材料层;
所述聚合物薄膜设置在所述硬化层和所述柔性无机材料层之间;
其中,所述柔性无机材料层为柔性玻璃,所述柔性玻璃的厚度为:30μm-100μm;
所述聚合物薄膜的材料包括:聚酰亚胺、聚对苯二甲酸类、聚萘二甲酸乙二醇酯、聚甲基丙烯酸甲酯、聚氨酯、聚芳纶中的一种或多种;
所述聚合物薄膜的厚度为:30μm-100μm;
所述硬化层的厚度范围为5μm-20μm;
所述硬化层的材料包括:硅氧烷聚合物和/或亚克力系聚合物。
2.根据权利要求1所述的柔性盖板,其特征在于,所述柔性无机材料层在所述聚合物薄膜所在的水平面的第一正投影位于所述聚合物薄膜内,所述柔性无机材料层的外围环绕设置缓冲材料,所述缓冲材料与所述聚合物薄膜贴合。
3.根据权利要求2所述的柔性盖板,其特征在于,所述缓冲材料与所述柔性无机材料层之间具有尺寸范围为0.05mm-0.4mm的间隙。
4.根据权利要求1至3任意一项所述的柔性盖板,其特征在于,所述柔性无机层通过光学胶层与所述聚合物薄膜贴合。
5.根据权利要求4所述的柔性盖板,其特征在于,所述光学胶层的材料包括:有机硅橡胶、丙烯酸型树脂、不饱和聚酯、聚氨酯、环氧树脂中一种或多种。
6.一种显示装置,其特征在于,包括权利要求1-5任意一项所述的柔性盖板。
7.根据权利要求6所述的显示装置,其特征在于,所述柔性无机材料层的外围尺寸大于所述显示装置的有效显示区尺寸,且所述有效显示区在所述柔性无机材料层所在的水平面的第二正投影位于所述柔性无机材料层内,所述第二正投影的外边缘与所述无机材料层的外边缘的距离为0.2mm~0.5mm。
8.一种如权利要求1所述柔性盖板的制备方法,其特征在于,包括:
在离型膜的一侧涂覆光学胶层;
在所述光学胶层远离所述离型膜的一侧贴合聚合物薄膜;
去除所述离型膜,并在所述光学胶层远离所述聚合物薄膜的一侧贴合柔性无机材料层;
在所述聚合物薄膜远离所述光学胶层的一侧形成硬化层;
其中,所述柔性无机材料层为柔性玻璃,所述柔性玻璃的厚度为:30μm-100μm;
所述聚合物薄膜的材料包括:聚酰亚胺、聚对苯二甲酸类、聚萘二甲酸乙二醇酯、聚甲基丙烯酸甲酯、聚氨酯、聚芳纶中的一种或多种;
所述聚合物薄膜的厚度为:30μm-100μm;
所述硬化层的厚度范围为5μm-20μm。
9.根据权利要求8所述的方法,其特征在于,所述去除所述离型膜,并在所述光学胶层远离所述聚合物薄膜的一侧贴合柔性无机材料层,包括:
去除所述离型膜的中间区域,并在所述中间区域贴合柔性无机材料层。
10.根据权利要求9所述的方法,其特征在于,还包括:
去除所述离型膜的边缘区域,在所述边缘区域贴合缓冲材料,其中所述缓冲材料环绕所述柔性无机材料层设置,且与所述柔性无机材料层之间具有间隙。
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