CN106684243B - 一种柔性显示面板及显示装置 - Google Patents
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Abstract
本发明公开了一种柔性显示面板及显示装置,该柔性显示面板包括:第一柔性基板、第二柔性基板,以及位于第一柔性基板与第二柔性基板之间的无机层;其中,无机层上具有多个凹槽和/或过孔;第一柔性基板通过凹槽和/或过孔与第二柔性基板接触。这样在无机层上设置多个凹槽和/或过孔,使得第一柔性基板通过凹槽和/或过孔与第二柔性基板接触,可以增大第二柔性基板和无机层的接触面积,进而提升第一柔性基板和第二柔性基板的粘附力,降低柔性显示面板在弯曲变形过程中有机层与无机层的剥离风险。
Description
技术领域
本发明涉及显示技术领域,尤其涉及一种柔性显示面板及显示装置。
背景技术
目前,显示技术被广泛应用于电视、手机以及公共信息的显示,用于显示画面的平板显示器因其超薄节能的优点而被大力推广。而柔性显示是一种前瞻显示技术,便携时尚将成为市场新宠。与常规有机发光显示器不同,柔性有机发光显示器需要以柔性有机材料作为基板,从而使得显示器可以弯曲变形。
现有技术中,柔性有机发光显示器的基板通常采用第一有机层-无机层-第二有机层叠层设置的多层结构,然而多层结构的柔性有机发光显示器的基板在经过多次弯折之后,易发生有机层与无机层剥离的风险。针对上述问题,目前采用的解决方案是在无机层和第二有机层之间沉积氢化非晶硅,利用非晶硅与柔性有机材料(例如聚酰亚胺)中的H结合能力强的优点作为粘合层,增加第一有机层和第二有机层的结合力(参见专利CN104637438 A)。然而,在显示器的制作过程中,首先在玻璃基板上沉积非晶硅,再涂布聚酰亚胺,待后续制程完成好,进行高温去氢,使得非晶硅和聚酰亚胺中氢含量降低,进而使得非晶硅和聚酰亚胺的结合力减弱,从而便于后续的剥离工艺。因此,通过利用非晶硅与柔性有机材料(例如聚酰亚胺)中的氢结合作为粘合层的方案可行性不高,因为在低温多晶硅制程工艺中存在高温去氢制程,这样在制程中会有非晶硅和有机层剥离的风险。
因此,如何提高柔性显示面板的多层基板结构中有机层与无机层的粘合力,从而降低柔性显示面板在弯曲变形过程中有机层与无机层的剥离风险,是本领域技术人员亟待解决的技术问题。
发明内容
本发明实施例提供了一种柔性显示面板及显示装置,用以解决现有技术中存在的柔性显示面板的多层基板结构中有机层与无机层的粘合力较低,在经过多次弯曲变形后易发生有机层与无机层的剥离的问题。
本发明实施例提供了一种柔性显示面板,包括:第一柔性基板、第二柔性基板,以及位于所述第一柔性基板与所述第二柔性基板之间的无机层;其中,
所述无机层上具有多个凹槽和/或过孔;
所述第一柔性基板通过所述凹槽和/或过孔与所述第二柔性基板接触。
本发明实施例还提供了一种显示装置,包括本发明实施例提供的上述柔性显示面板。
本发明实施例的有益效果包括:
本发明实施例提供了一种柔性显示面板及显示装置,该柔性显示面板包括:第一柔性基板、第二柔性基板,以及位于第一柔性基板与第二柔性基板之间的无机层;其中,无机层上具有多个凹槽和/或过孔;第一柔性基板通过凹槽和/或过孔与第二柔性基板接触。这样在无机层上设置多个凹槽和/或过孔,使得第一柔性基板通过凹槽和/或过孔与第二柔性基板接触,可以增大第二柔性基板和无机层的接触面积,进而提升第一柔性基板和第二柔性基板的粘附力,降低柔性显示面板在弯曲变形过程中有机层与无机层的剥离风险。
附图说明
图1为本发明实施例提供的柔性显示面板的膜层结构示意图。
图2为本发明实施例提供的柔性显示面板的周边过孔分布示意图;
图3为本发明实施例提供的柔性显示面板的周边凹槽分布示意图;
图4为本发明实施例提供的柔性显示面板的具体膜层结构示意图之一;
图5为本发明实施例提供的柔性显示面板的具体膜层结构示意图之二;
图6为本发明实施例提供的柔性显示面板的具体膜层结构示意图之三。
具体实施方式
下面结合附图,对本发明实施例提供的柔性显示面板及显示装置的具体实施方式进行详细的说明。
本发明实施例提供了一种柔性显示面板,如图1所示,可以包括:第一柔性基板01、第二柔性基板02,以及位于第一柔性基板01与第二柔性基板02之间的无机层03;其中,无机层03上具有多个凹槽m和/或过孔n;第一柔性基板01通过凹槽m和/或过孔n与第二柔性基板02接触。
本发明实施例提供的上述柔性显示面板可以为柔性有机发光显示面板,如图1所示,位于第二柔性基板02之上依次为阵列基板04、有机发光器件OLED以及封装层TFE。将第一柔性基板与第二柔性基板之间无机层进行挖槽和/或挖孔处理,即在无机层上设置多个凹槽和/或过孔,使得第一柔性基板通过凹槽和/或过孔与第二柔性基板接触,这样可以增大第二柔性基板和无机层的接触面积,进而提升第一柔性基板和第二柔性基板的粘附力,降低柔性显示面板在弯曲变形过程中有机层与无机层的剥离风险。
在具体实施时,本发明实施例提供的上述柔性显示面板中,如图2和图3所示,凹槽m和/或过孔n可以位于无机层上的周边区域BB和/或中心区域AA;其中,中心区域AA对应柔性显示面板的显示区域,周边区域BB围绕中心区域BB。具体地,如图2所示,可以将无机层上对应柔性显示面板的周边区域BB进行过孔n设计,位于该周边区域BB的多个过孔n围绕中心区域AA可以均匀分布;也可以如图3所示,将无机层上对应柔性显示面板的周边区域BB进行凹槽m设计,位于周边区域BB的多个凹槽m首尾相接,形成围绕中心区域AA的凹槽边框。
在具体实施时,本发明实施例提供的上述柔性显示面板中,如图4和图5所示,还可以包括:位于显示区域的多条金属走线L;位于中心区域的凹槽m和过孔n在第一柔性基板01上的正投影位于对应区域内金属走线L在第一柔性基板01上的正投影区域内。具体地,设计在显示区域的凹槽和过孔需要避开TFT所在区域,因此可以将凹槽和过孔设计无机层上对应金属走线的区域。以凹槽m为例,其中,如图4所示,凹槽m可以作未挖穿的设计,这样增大第二柔性基板02与无机层03的接触面积,提高第二柔性基板02与无机层03的粘合力;也可以如图5所示,凹槽m作挖穿无机层的设计,这样既可以增大第二柔性基板02与无机层03的接触面积,提高第二柔性基板02与无机层03的粘合力,还可以使得第二柔性基板02与第一柔性基板01接触,进一步增大第二柔性基板02与第一柔性基板01的粘合力。另外,需要说明的是,柔性显示面板中还可以包括其他的膜层结构,如图4和图5所示,例如栅极Gate、源漏电极S/D、有源层Si、阴极C、阳极R、发光层F等,各膜层的结构与功能和现有技术相同,在此不作详述。
在具体实施时,本发明实施例提供的上述柔性显示面板中,如图6所示,还可以包括:位于第二柔性基板02上的缓冲层05,以及位于缓冲层05之上的封装部bank;其中,缓冲层05上对应封装部bank的区域具有过孔n,封装部bank通过过孔n与第二柔性基板02相连。具体地,在缓冲层上对应封装部的区域设置过孔,从而使得封装部通过过孔与第二柔性基板接触,从而提高柔性显示面板的外部封装结构与柔性基板之间的粘合力,其中封装部为有机膜层,第一柔性基板和第二柔性基板为有机层,各有机层之间粘合力提高,使得有机层之间的无机层与相邻的上下有机层之间的粘合力提高,减小了无机层与有机层的剥离风险,最终可以提高柔性显示面板的整体封装性,增强柔性显示面板多层结构之间的粘合力,降低柔性显示面板的多层结构相邻两层结构之间的剥离风险。
在具体实施时,本发明实施例提供的上述柔性显示面板中,如图6所示,无机层03上对应封装部bank的区域具有过孔n,第二柔性基板02通过过孔n与第一柔性基板01相连。具体地,在无机层上对应封装部的区域设置过孔结构,使得第二柔性基板通过过孔与第一柔性基板接触,不仅可以增大第二柔性基板和无机层的接触面积,进而提升第一柔性基板和第二柔性基板的粘附力,同时也可以防止柔性显示面板进行切割(如图6所示的切割线cut)时在无机层造成的切割裂纹的扩展,提升双层柔性基板的防水氧能力。
在具体实施时,本发明实施例提供的上述柔性显示面板中,第一柔性基板与第二柔性基板的材料可以为聚酰亚胺;无机层的材料可以为金属或金属氧化物。
基于同一发明构思,本发明实施例提供了一种显示装置,包括本发明实施例提供的上述柔性显示面板。该显示装置可以应用于手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。由于该显示装置解决问题的原理与柔性显示面板相似,因此该显示装置的实施可以参见上述柔性显示面板的实施,重复之处不再赘述。
本发明实施例提供了一种柔性显示面板及显示装置,该柔性显示面板包括:第一柔性基板、第二柔性基板,以及位于第一柔性基板与第二柔性基板之间的无机层;其中,无机层上具有多个凹槽和/或过孔;第一柔性基板通过凹槽和/或过孔与第二柔性基板接触。这样在无机层上设置多个凹槽和/或过孔,使得第一柔性基板通过凹槽和/或过孔与第二柔性基板接触,可以增大第二柔性基板和无机层的接触面积,进而提升第一柔性基板和第二柔性基板的粘附力,降低柔性显示面板在弯曲变形过程中有机层与无机层的剥离风险。
显然,本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内,则本发明也意图包含这些改动和变型在内。
Claims (8)
1.一种柔性显示面板,其特征在于,包括:第一柔性基板、第二柔性基板,以及位于所述第一柔性基板与所述第二柔性基板之间的无机层;其中,
所述无机层上具有多个凹槽和/或过孔;
所述第一柔性基板通过所述凹槽和/或过孔与所述第二柔性基板接触;
还包括:位于所述第二柔性基板上的缓冲层,以及位于所述缓冲层之上的封装部;其中,
所述缓冲层上对应所述封装部的区域具有过孔,所述封装部通过所述过孔与所述第二柔性基板相连;
所述无机层上对应所述封装部的区域具有过孔,所述第二柔性基板通过所述过孔与所述第一柔性基板相连。
2.如权利要求1所述的柔性显示面板,其特征在于,所述凹槽和/或所述过孔位于所述无机层上的周边区域和/或中心区域;其中,所述中心区域对应所述柔性显示面板的显示区域,所述周边区域围绕所述中心区域。
3.如权利要求2所述的柔性显示面板,其特征在于,位于所述周边区域的多个所述过孔围绕所述中心区域均匀分布。
4.如权利要求2所述的柔性显示面板,其特征在于,位于所述周边区域的多个所述凹槽首尾相接,形成围绕所述中心区域的凹槽边框。
5.如权利要求2所述的柔性显示面板,其特征在于,还包括:位于所述显示区域的多条金属走线;
位于所述中心区域的所述凹槽和所述过孔在所述第一柔性基板上的正投影位于对应区域内所述金属走线在所述第一柔性基板上的正投影区域内。
6.如权利要求1所述的柔性显示面板,其特征在于,所述第一柔性基板与所述第二柔性基板的材料为聚酰亚胺。
7.如权利要求1所述的柔性显示面板,其特征在于,所述无机层的材料为金属或金属氧化物。
8.一种显示装置,其特征在于,包括如权利要求1-7任一项所述的柔性显示面板。
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