CN108550556B - 用于柔性衬底的保护膜及其显示面板 - Google Patents

用于柔性衬底的保护膜及其显示面板 Download PDF

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CN108550556B
CN108550556B CN201810550311.3A CN201810550311A CN108550556B CN 108550556 B CN108550556 B CN 108550556B CN 201810550311 A CN201810550311 A CN 201810550311A CN 108550556 B CN108550556 B CN 108550556B
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闫灏
张瑜
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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Abstract

本发明涉及一种用于柔性衬底的保护膜及其显示面板。所述保护膜包括间隔设置的多个开口。所述多个开口包括至少一行开口。所述开口的位置对应于所述柔性衬底的未形成有显示单元的区域。

Description

用于柔性衬底的保护膜及其显示面板
技术领域
本发明的实施例涉及显示技术领域,尤其涉及一种用于柔性衬底的保护膜及其显示面板。
背景技术
在显示技术领域,柔性显示器以其低功耗、体积小、结构轻薄以及可变形等优点应用到更广泛的领域中。
发明内容
本发明的实施例提供了一种用于柔性衬底的保护膜以及显示面板,能够释放在保护膜的贴附过程中产生的应力,从而防止形成在柔性衬底上的显示单元发生翘曲。
根据本发明的第一方面,提供了一种用于柔性衬底的保护膜。所述保护膜包括间隔设置的多个开口。所述开口的位置对应于所述柔性衬底的未形成有显示单元的区域。
在本发明的实施例中,所述多个开口包括至少一行开口。
在本发明的实施例中,所述多个开口还包括与所述至少一行开口相交的至少一列开口。
在本发明的实施例中,所述开口的尺寸沿贴附方向逐渐增大。
在本发明的实施例中,所述显示单元被设置为阵列形式。所述开口的位置对应于所述显示单元之间的区域。
在本发明的实施例中,所述开口的形状包括矩形、圆形或菱形。
在本发明的实施例中,所述保护膜的材料包括聚对苯二甲酸乙二醇酯。
根据本发明的第二方面,提供了一种显示面板。所述显示面板包括柔性衬底和根据本发明的第一方面描述的保护膜。
在本发明的实施例中,所述保护膜位于所述柔性衬底的未形成有显示单元的一侧。
附图说明
本文中描述的附图用于仅对所选择的实施例的说明的目的,并不是所有可能的实施方式,并且不旨在限制本申请的范围,其中:
图1示出了一种贴附有保护膜的柔性衬底的截面示意图;
图2示出了贴附有根据本发明的实施例的保护膜的柔性衬底的截面示意图;
图3示出了根据本发明的实施例的保护膜的平面示意图;
图4示出了根据本发明的实施例的保护膜的平面示意图;
图5示出了根据本发明的实施例的保护膜的平面示意图;
图6示出了根据本发明的实施例的保护膜的平面示意图;
图7示出了贴附有根据本发明的实施例的保护膜的柔性衬底的截面示意图;以及
图8示出了图7所示配置中的根据本发明的实施例的保护膜的开口与显示单元的位置关系的平面示意图。
贯穿这些附图的各个视图,相应的参考编号指示相应的部件或特征。
具体实施方式
首先,需要说明的是,除非上下文中另外明确地指出,否则在本文和所附权利要求中所使用的词语的单数形式包括复数,反之亦然。因而,当提及单数时,通常包括相应术语的复数。相似地,措辞“包含”和“包括”将解释为包含在内而不是独占性地。同样地,术语“包括”和“或”应当解释为包括在内的,除非本文中另有说明(翻译与下面不一样,需注意)。在本文中使用术语“实例”之处,特别是当其位于一组术语之后时,所述“实例”仅仅是示例性的和阐述性的,且不应当被认为是独占性的或广泛性的。
此外,还需要说明的是,当介绍本申请的元素及其实施例时,冠词“一”、“一个”、“该”和“所述”旨在表示存在一个或者多个要素;除非另有说明,“多个”的含义是两个或两个以上;用语“包含”、“包括”、“含有”和“具有”旨在包括性的并且表示可以存在除所列要素之外的另外的要素;术语“第一”、“第二”、“第三”等仅用于描述的目的,而不能理解为指示或暗示相对重要性及形成顺序。
现将参照附图更全面地描述示例性的实施例。
目前,柔性显示器件需要采用保护膜对柔性衬底进行保护。然而,如图1所示,保护膜102在被贴附到柔性衬底101的表面的贴附过程中会产生应力F,并且随着贴附过程的进行,沿贴附方向,应力F将越来越大,由此会使柔性衬底101以及形成在柔性衬底101上的显示单元(未示出)发生翘曲。
在本发明的实施例中,提供了一种用于柔性衬底的保护膜。该保护膜包括间隔设置的多个开口。图2示出了贴附有根据本发明的实施例的保护膜的柔性衬底的截面示意图。如图2所示,保护膜102’包括间隔设置的多个开口1,从而能够部分地释放在保护膜102’的贴附过程中沿贴附方向产生的应力F’,并且使应力F’在贴附过程中始终保持处于较低水平。
图3至6示出了根据本发明的实施例的保护膜的平面示意图。
在本发明的示例性实施例中,如图3所示,保护膜102’包括间隔设置的多个开口1。在图3中,该多个开口1包括至少一行开口1。
在本发明的示例性实施例中,如图4所示,保护膜102’还包括与该至少一行开口1相交的至少一列开口1,由此能够更有效地释放保护膜的应力。
在本发明的示例性实施例中,如图5所示,保护膜102’中的开口1的尺寸沿贴附方向逐渐增大。应理解,如上所述,随着保护膜的贴附过程的进行,应力将沿贴附方向越来越大。因此,将保护膜的开口的尺寸设置为沿贴附方向逐渐增大更有助于应力的充分释放。
在本发明的示例性实施例中,如图6所示,保护膜102’中的开口1的数量沿贴附方向逐渐增多。应理解,如上所述,随着保护膜的贴附过程的进行,应力将沿贴附方向越来越大。因此,将保护膜的开口的数量设置为沿贴附方向逐渐增多同样有助于应力的充分释放。
在本发明的实施例中,开口的位置对应于柔性衬底的未形成有显示单元的区域。图7示出了贴附有根据本发明的实施例的保护膜的柔性衬底的截面示意图。
如图7所示,开口1的位置对应于柔性衬底101的未形成有显示单元103的区域。也就是,开口1在柔性衬底101上的正投影与显示单元103在柔性衬底101上的正投影不重叠。因此,开口1不会影响保护膜102’对柔性衬底101的形成有显示单元103的部分的保护。
图8示出了图7所示配置中的根据本发明的实施例的保护膜的开口与显示单元的位置关系的平面示意图。在本发明的示例性实施例中,如图8所示,显示单元103(在图中被示出为虚线框)被设置为阵列形式。作为示例,开口1的位置可以对应于相邻的显示单元103之间的区域。也就是,开口1位于用于分离显示单元103的切割区域内。通过这样的配置,开口1不会劣化保护膜102’对由此分离的柔性衬底101的保护作用。这里,开口1能够释放在保护膜102’的贴附过程中产生的应力,从而防止形成在柔性衬底101上的显示单元103发生由应力积累导致的翘曲。
在本发明的示例性实施例中,开口1的形状包括矩形、圆形或菱形。需要注意,附图仅示出了开口1的形状的一个具体的实施例,其不能被视为是对本发明的限定。
在本发明的示例性实施例中,保护膜的材料可以包括聚对苯二甲酸乙二醇酯。
在本发明的示例性实施例中,在保护膜中形成开口的方法可以包括冲压或激光切割。
此外,在本发明的实施例中,在保护膜与柔性衬底之间还可以设置有粘结层(未示出),以用于将保护膜贴附至柔性衬底上,由此实现对柔性衬底的保护。作为示例,粘结层的材料可以包括亚克力胶。
在本发明的示例性实施例中,保护膜的厚度的范围可以为30μm至200μm。作为示例,保护膜的厚度为100μm。
应注意,根据本发明的实施例的保护膜可以在柔性衬底上形成显示单元之后进行贴附。
在本发明的实施例中,还提供了一种显示面板。该显示面板包括柔性衬底和如上所述的保护膜。
在本发明的实施例中,保护膜位于柔性衬底的未形成有显示单元的一侧。如图7所示,保护膜102’形成在柔性衬底101的未形成有显示单元103的一侧。该保护膜能够释放在保护膜的贴附过程中产生的应力,从而防止显示面板中的显示单元发生翘曲。
以上为了说明和描述的目的提供了实施例的前述描述。其并不旨在是穷举的或者限制本申请。特定实施例的各个元件或特征通常不限于特定的实施例,但是,在合适的情况下,这些元件和特征是可互换的并且可用在所选择的实施例中,即使没有具体示出或描述。同样也可以以许多方式来改变。这种改变不能被认为脱离了本申请,并且所有这些修改都包含在本申请的范围内。

Claims (8)

1.一种用于柔性衬底的保护膜,包括间隔设置的多个开口,
其中,所述开口的位置对应于所述柔性衬底的未形成有显示单元的区域,
所述开口的尺寸沿贴附方向逐渐增大。
2.根据权利要求1所述的保护膜,其中,所述多个开口包括至少一行开口。
3.根据权利要求2所述的保护膜,其中,所述多个开口还包括与所述至少一行开口相交的至少一列开口。
4.根据权利要求1所述的保护膜,其中,所述显示单元被设置为阵列形式,
其中,所述开口的位置对应于所述显示单元之间的区域。
5.根据权利要求1所述的保护膜,其中,所述开口的形状包括矩形、圆形或菱形。
6.根据权利要求1所述的保护膜,其中,所述保护膜的材料包括聚对苯二甲酸乙二醇酯。
7.一种显示面板,包括柔性衬底和根据权利要求1至6中任一项所述的保护膜。
8.根据权利要求7所述的显示面板,其中,所述保护膜位于所述柔性衬底的未形成有显示单元的一侧。
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CN108550556B (zh) 2018-05-31 2021-03-23 京东方科技集团股份有限公司 用于柔性衬底的保护膜及其显示面板
CN109273515B (zh) * 2018-11-02 2020-12-11 京东方科技集团股份有限公司 一种像素结构、柔性显示基板及其制作方法、显示装置
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