CN105607323A - 显示面板和显示装置 - Google Patents

显示面板和显示装置 Download PDF

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CN105607323A
CN105607323A CN201610004073.7A CN201610004073A CN105607323A CN 105607323 A CN105607323 A CN 105607323A CN 201610004073 A CN201610004073 A CN 201610004073A CN 105607323 A CN105607323 A CN 105607323A
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substrate
display floater
magnetic
layer
repulsion
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张雨
贾倩
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BOE Technology Group Co Ltd
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Priority to CN201610004073.7A priority Critical patent/CN105607323A/zh
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Priority to US15/207,556 priority patent/US10025125B2/en
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Abstract

本发明属于液晶显示技术领域，具体涉及一种显示面板和显示装置。该显示面板，包括对合设置的第一基板和第二基板，所述第一基板和所述第二基板均柔性可弯曲，其中，所述第一基板和所述第二基板中均设置有斥力层，所述斥力层使得所述第一基板和所述第二基板互相排斥。该显示面板通过增加斥力层，达到维持柔性显示面板的均一盒厚的作用，使得显示面板具有较佳的显示效果。

Description

显示面板和显示装置
技术领域
本发明属于液晶显示技术领域，具体涉及一种显示面板和显示装置。
背景技术
随着显示技术的发展，人们对显示装置的品质追求越来越高，对穿戴设备等新潮设备也倍加追求，尤其是苹果手表产品的上市以及热卖，更加展示出柔性显示装置的广大市场。
柔性显示装置，顾名思义，就是其显示面板与传统的硬性的玻璃面板明显不同，其关键特点就是显示面板具有柔软性，呈现可以弯曲的特性。目前，柔性的液晶显示装置(LiquidCrystalDisplay，简称LCD)是最常见的研究产品，其夹持液晶的彩膜基板和阵列基板均采用柔软可弯曲的柔性基板形成，以保证显示面板的柔性弯曲性。如图1所示，彩膜基板1和阵列基板(图1中未示出)二者形成的液晶盒厚通过隔垫物3的支撑进行维持。
然而，由于其显示面板柔软，导致隔垫物3支撑力处太软，从而使得盒厚不均匀，盒厚均一性维持成为柔性液晶显示面板的瓶颈问题。如图2所示，现有技术一般采用增加隔垫物3的密度的方式来保持均匀的盒厚，但是隔垫物3的密度增加有限，而且还可能带来其他附加问题，比如：因隔垫物3密度太高导致的rubbingmura缺陷几率增加；以及，因隔垫物3密度太高相应地增加了隔垫物3与基板的接触面积，当上下基板发生位移滑动时候(例如图2中的a所示)，由于摩擦力增加而不能及时恢复到原有位置，会导致暗态漏光等缺陷。以上问题均严重影响了显示装置的显示效果。
可见，设计一种结构简单、且能较佳地维持均一性盒厚的显示面板成为目前亟待解决的技术问题。
发明内容
本发明所要解决的技术问题是针对现有技术中存在的上述不足，提供一种显示面板和显示装置，该显示面板通过增加斥力层，达到维持柔性显示面板的均一盒厚的作用，使得显示面板具有较佳的显示效果。
解决本发明技术问题所采用的技术方案是该显示面板，包括对合设置的第一基板和第二基板，所述第一基板和所述第二基板均柔性可弯曲，所述第一基板和所述第二基板中均设置有斥力层，所述斥力层使得所述第一基板和所述第二基板互相排斥。
优选的是，所述斥力层中包括有同性的磁性颗粒，所述磁性颗粒采用磁性过渡族金属与非磁性过渡族金属掺杂形成。
优选的是，所述磁性过渡族金属与所述非磁性过渡族金属的掺杂比例范围为90-60:10-40。
优选的是，磁性过渡族金属包括Fe或者Co或者Mn，非磁性过渡族金属包括Zn或者Ti。
优选的是，所述磁性颗粒在所述斥力层中均匀分布，所述斥力层的厚度范围为
优选的是，所述斥力层采用构图工艺形成，构图工艺中的成膜工艺采用沉积方式形成预先掺杂有所述磁性颗粒的斥力膜层。
优选的是，所述第一基板和所述第二基板对应划分为多个像素区，相邻所述像素区的区域之间形成间隔区，所述斥力层至少分布于所述第一基板和所述第二基板的所述间隔区。
优选的是，所述斥力层还进一步延伸至所述第一基板和所述第二基板的所述像素区。
优选的是，所述第一基板为彩膜基板，所述第二基板为阵列基板，所述彩膜基板的至少部分所述间隔区还设置有隔垫物。
进一步优选的是，所述阵列基板包括栅极绝缘层，所述栅极绝缘层中设置有磁性颗粒而形成所述斥力层；
和/或，所述彩膜基板包括彩色光阻以及设置于相邻所述彩色光阻之间的黑矩阵，所述黑矩阵中设置有磁性颗粒而形成所述斥力层。
一种显示装置，包括上述的显示面板。
本发明的有益效果是：该显示面板中，针对柔性显示面板的盒厚，通过在上下对合的第一基板和第二基板中分别设置斥力层，通过二者之间的磁性排斥作用力，互相给予相对的基板一个相反的作用力，维持了第一基板与第二基板之间均一的距离范围，有效解决了柔性显示面板过软的缺点，达到了有效维持柔性显示面板液晶盒厚的效果；
相应的，采用该显示面板的显示装置具有更佳的显示效果。
附图说明
图1为现有技术中显示面板的俯视图；
图2为现有技术中增加了隔垫物密度的显示面板的俯视图；
图3为本发明实施例1中的显示面板的俯视图；
图4为图3中显示面板的剖视图；
其中，附图标记为：
1—彩膜基板；11—彩色光阻；
2—阵列基板；21—薄膜晶体管；
3—隔垫物；
4—斥力层；41—磁性颗粒；
5—封框胶。
具体实施方式
为使本领域技术人员更好地理解本发明的技术方案，下面结合附图和具体实施方式对本发明显示面板和显示装置作进一步详细描述。
实施例1：
本实施例提供一种显示面板，该显示面板具有均一的液晶盒厚，从而具有较好的显示效果。
一种显示面板，包括对合设置的第一基板和第二基板，第一基板和第二基板均柔性可弯曲，其中，第一基板和第二基板中均设置有斥力层，斥力层使得第一基板和第二基板互相排斥。
如图3和图4所示，在本实施例的显示面板中，第一基板为彩膜基板1，第二基板为阵列基板2，彩膜基板1的至少部分间隔区还设置有隔垫物3，彩膜基板1与阵列基板2均分别设置有斥力层4，斥力层4中包括有同性的磁性颗粒41。本实施例的显示面板从别样的角度，通过在上下对合设置的彩膜基板1和阵列基板2中设置磁性颗粒41，巧妙地增加彩膜基板1和阵列基板2之间的作用力(具体来说是排斥力)，从而可以大大增加其作用力；进一步的，配合隔垫物3对彩膜基板1和阵列基板2的标称限距作用，利用斥力层4和隔垫物3的双重作用，增加盒厚均一性和盒厚稳定性。
其中，磁性颗粒41采用磁性过渡族金属与非磁性过渡族金属掺杂形成。采用同性的磁性颗粒41，有利于形成互相排斥的作用力，从而起到类同隔垫物3的支撑作用。
优选的是，磁性过渡族金属与非磁性过渡族金属的掺杂比例范围为90-60:10-40。其中，磁性过渡族金属包括铁Fe或者钴Co或者锰Mn，非磁性过渡族金属包括锌Zn或者锡Ti。通过将含有磁性过渡族金属元素与含有非磁性过渡族金属元素的被掺杂物按一定的比例配置，得到同性的磁性颗粒41。这里的磁性颗粒41的构成成分基本为常用材料，选材方便容易。
在现有的显示面板，彩膜基板1和阵列基板2对应划分为多个像素区，相邻像素区的区域之间形成间隔区，斥力层4至少分布于彩膜基板1和阵列基板2的间隔区。仅在间隔区设置斥力层4，能保证显示面板具有良好的像素透过率，保证显示效果。
优选的是，磁性颗粒41在斥力层4中均匀分布，斥力层4的厚度范围为磁性颗粒41在斥力层4中均匀分布，能有效保证均衡的斥力。
本实施例的显示面板中，由于彩膜基板和阵列基板之间具有互相排斥的作用力，因此可以仅在部分间隙区设置隔垫物即可，从而在保持减小的隔垫物的密度的基础上，仍能保证均一厚度的盒厚。即，在彩膜基板1和阵列基板2的斥力层4的分布设置上，虽然二者的斥力层4均设置在间隔区，但并不要求二者的磁性颗粒41分布完全一一对应，例如，图4中所示的显示面板中，在阵列基板2中对应着薄膜晶体管21设置区域可以不设置斥力层4的图形，此处未被对应的彩膜基板1中的磁性颗粒41将与阵列基板2中其他区域的磁性颗粒41形成斜向的排斥力，仍然能保证有效的排斥力。
在本实施例的显示面板中，斥力层4采用构图工艺形成，构图工艺中的成膜工艺采用沉积方式形成预先掺杂有磁性颗粒41的斥力膜层。这里的斥力膜层可以仅采用同性的磁性颗粒形成单独的层结构，然后采用构图工艺(其中的刻蚀工艺为干刻工艺)形成包括斥力层的图形；当然，也可以将同性的磁性颗粒与形成彩膜基板或阵列基板中的绝缘膜层同时形成，然后采用构图工艺形成包括斥力层的图形。相比而言，后一方法形成的斥力层比前一方法形成的斥力层具有更好的附着力，更不容易脱落。
薄膜晶体管21通常包括栅极、栅极绝缘层、有源层、同层设置的源极和漏极等层结构；薄膜晶体管21的上方通常还设置有钝化层和像素电极等结构。彩膜基板包括彩色光阻、设置于相邻所述彩色光阻之间的黑矩阵以及平坦层等层结构。优选的是，在阵列基板的栅极绝缘层中设置有磁性颗粒而所述斥力层；和/或，在彩膜基板的黑矩阵中设置有磁性颗粒而形成斥力层。通过将斥力层的功能合并入上述阵列基板和彩膜基板的任一层结构中，不会额外增加显示面板的厚度，保证显示面板更轻薄的结构。当然，也可以不将斥力层的功能合并入上述阵列基板和彩膜基板的任一层结构中，而在阵列基板和彩膜基板中分别单独形成一层新的独立的斥力层，这里不做限定。
阵列基板中的薄膜晶体管可以为顶栅型结构或底栅型结构。如图4所示，在本实施例的显示面板中，阵列基板2以包括底栅型薄膜晶体管的结构作为示例，薄膜晶体管21包括依次设置的栅极、栅极绝缘层、有源层、同层设置的源极和漏极等层结构。
在制备过程中，阵列基板和彩膜基板各像素区中相同的各层结构采用同一构图工艺形成。例如，以将彩膜基板1中的黑矩阵同时还赋予斥力层的功能，将阵列基板中的薄膜晶体管之上、钝化层之下新形成一层独立的斥力层作为示例，则在彩膜基板1和阵列基板2中的斥力层4的制备方法为：
彩膜基板1中：将上述制备的磁性颗粒41掺杂到用于划分彩色区域的黑矩阵材料中，得到具备磁性的黑矩阵材料；进而，通过等离子体增强化学气相沉积法(PlasmaEnhancedChemicalVaporDeposition，PEVCD)沉积方式形成黑矩阵膜层，通过构图工艺形成包括黑矩阵的图形，并同时完成彩膜基板1中斥力层4的制备；接着，再采用构图工艺，在黑矩阵包围的像素区内形成彩色光阻11；
阵列基板2中：在形成薄膜晶体管21的基础上，将上述制备的磁性颗粒41通过等离子体增强化学气相沉积法PEVCD沉积到薄膜晶体管21的上方(为避免对薄膜晶体管21的性能造成影响，优选在薄膜晶体管21与斥力层4之间设置绝缘层)，通过构图工艺在对应着间隔区的区域形成包括斥力层4的图形；接着，再采用构图工艺，在斥力层4的上方形成包括钝化层以及像素电极的图形等结构；
进一步的，将彩膜基板1和阵列基板2对合，隔垫物3维持彩膜基板1与阵列基板2之间的盒厚，并通过封框胶5形成整体。。
上述的构图工艺，可只包括光刻工艺，或，包括光刻工艺以及刻蚀步骤，同时还可以包括打印、喷墨等其他用于形成预定图形的工艺；光刻工艺，是指包括成膜、曝光、显影等工艺过程的利用光刻胶、掩模板、曝光机等形成图形的工艺。可根据本发明中所形成的结构选择相应的构图工艺。
本实施例的显示面板中，针对柔性显示面板的盒厚，通过在上下对合的第一基板和第二基板中分别设置斥力层，通过二者之间的磁性排斥作用力，互相给予相对的基板一个相反的作用力，维持了第一基板与第二基板之间均一的距离范围，有效解决了柔性显示面板过软的缺点，达到了有效维持柔性显示面板液晶盒厚的效果，使得显示面板具有较佳的显示效果。
实施例2：
本实施例提供一种显示面板，该显示面板具有均一的液晶盒厚，从而具有较好的显示效果。
本实施例中的显示面板与实施例1中显示面板的区别在于，本实施例中的显示面板中，斥力层4可以整层设置。也即，相对实施例1中的显示面板，斥力层4还进一步延伸至第一基板和第二基板的像素区。此时，斥力层4的厚度范围可以适当小于实施例1中斥力层4的厚度，优选斥力层4的厚度范围为 以保证像素区具有良好的光透过率。
例如，可以将斥力层4与钝化层合二为一，将斥力层的功能同时赋予钝化层，相比实施例1的阵列基板，在本实施例的阵列基板中制备斥力层4的方法为：在形成薄膜晶体管21的基础上，将上述制备的磁性颗粒41掺杂到用于保护薄膜晶体管21的钝化层材料中，得到具备磁性的钝化层材料；进而，通过等离子体增强化学气相沉积法PEVCD沉积形成钝化膜层，通过构图工艺形成包括钝化层的图形，也即同时完成阵列基板2中斥力层4的制备；接着，再采用构图工艺，在钝化层的上方形成像素电极等结构。
本实施例中显示面板的其他结构与实施例1中显示面板的对应结构相同，这里不再详述。
实施例1和实施例2中的液晶显示面板，通过增加斥力层，达到维持柔性显示面板的均一盒厚的作用，使得显示面板具有较佳的显示效果。
实施例3：
本实施例提供了一种显示装置，其包括实施例1或实施例2中任意一种显示面板。
显示装置可以为：穿戴设备、电子纸、手机、平板电脑、电视机、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。
该显示装置由于采用实施例1或实施例2中显示面板，保证了均一的液晶厚度，因此具有更佳的显示效果。
可以理解的是，以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式，然而本发明并不局限于此。对于本领域内的普通技术人员而言，在不脱离本发明的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本发明的保护范围。

Claims (11)

1.一种显示面板，包括对合设置的第一基板和第二基板，所述第一基板和所述第二基板均柔性可弯曲，其特征在于，所述第一基板和所述第二基板中均设置有斥力层，所述斥力层使得所述第一基板和所述第二基板互相排斥。
2.根据权利要求1所述的显示面板，其特征在于，所述斥力层中包括有同性的磁性颗粒，所述磁性颗粒采用磁性过渡族金属与非磁性过渡族金属掺杂形成。
3.根据权利要求2所述的显示面板，其特征在于，所述磁性过渡族金属与所述非磁性过渡族金属的掺杂比例范围为90-60:10-40。
4.根据权利要求2所述的显示面板，其特征在于，磁性过渡族金属包括Fe或者Co或者Mn，非磁性过渡族金属包括Zn或者Ti。
5.根据权利要求2所述的显示面板，其特征在于，所述磁性颗粒在所述斥力层中均匀分布，所述斥力层的厚度范围为
6.根据权利要求2所述的显示面板，其特征在于，所述斥力层采用构图工艺形成，构图工艺中的成膜工艺采用沉积方式形成预先掺杂有所述磁性颗粒的斥力膜层。
7.根据权利要求1所述的显示面板，其特征在于，所述第一基板和所述第二基板对应划分为多个像素区，相邻所述像素区的区域之间形成间隔区，所述斥力层至少分布于所述第一基板和所述第二基板的所述间隔区。
8.根据权利要求7所述的显示面板，其特征在于，所述斥力层还进一步延伸至所述第一基板和所述第二基板的所述像素区。
9.根据权利要求7所述的显示面板，其特征在于，所述第一基板为彩膜基板，所述第二基板为阵列基板，所述彩膜基板的至少部分所述间隔区还设置有隔垫物。
10.根据权利要求9所述的显示面板，其特征在于，所述阵列基板包括栅极绝缘层，所述栅极绝缘层中设置有磁性颗粒而形成所述斥力层；
和/或，所述彩膜基板包括彩色光阻以及设置于相邻所述彩色光阻之间的黑矩阵，所述黑矩阵中设置有磁性颗粒而形成所述斥力层。
11.一种显示装置，其特征在于，包括权利要求1-10任一所述的显示面板。
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