CN109101903B - 一种显示面板以及显示装置 - Google Patents

一种显示面板以及显示装置 Download PDF

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CN109101903B
CN109101903B CN201810827824.4A CN201810827824A CN109101903B CN 109101903 B CN109101903 B CN 109101903B CN 201810827824 A CN201810827824 A CN 201810827824A CN 109101903 B CN109101903 B CN 109101903B
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董向丹
高永益
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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Abstract

本发明涉及显示技术领域，公开了一种显示面板以及显示装置，该显示面板包括传感器、形成于传感器一侧的源漏电极层以及形成于源漏电极层背离传感器一侧的金属反射层，金属反射层具有用于透过指纹识别所需光线的若干透光孔和至少两种信号线，两种信号线间形成间隙；还包括与金属反射层直接接触的黑色绝缘层，黑色绝缘层遮挡间隙。本发明提供的显示面板通过黑色绝缘层实现了对金属反射层内间隙的遮挡，换言之，黑色绝缘层实现了全面遮光的效果，可提升显示面板指纹识别的精准度。

Description

一种显示面板以及显示装置
技术领域
本发明涉及显示技术领域，特别涉及一种显示面板以及显示装置。
背景技术
目前，具有指纹识别功能的显示面板中金属反射层上设有多个供光线进入的小孔，置于显示面板内的传感器通过感应光线的变化、以进行指纹识别。
但是，金属反射层除具有小孔外，还存在间隙，当外界光线从金属反射层的间隙射入显示面板内部时，由于源漏电极层与金属反射层之间的绝缘层具有一定厚度，则从金属反射层的间隙进入绝缘层的光线会在绝缘层内发生折射，且该部分折射后的光线可透过源漏电极层中源电极与漏电极之间的空隙进入传感器中，从而影响指纹识别的效果。
发明内容
本发明提供了一种显示面板以及显示装置，上述显示面板设置了黑色绝缘层，利于消除外部光线从金属反射层的间隙进入传感器的现象发生，可提升显示面板指纹识别的效果。
为达到上述目的，本发明提供以下技术方案：
一种显示面板，包括传感器、形成于所述传感器一侧的源漏电极层以及形成于所述源漏电极层背离所述传感器一侧的金属反射层，所述金属反射层具有用于透过指纹识别所需光线的若干透光孔和至少两种信号线，两种所述信号线间形成间隙；
还包括与所述金属反射层直接接触的黑色绝缘层，所述黑色绝缘层遮挡所述间隙。
上述显示面板中，显示面板包括传感器、形成于传感器一侧的源漏电极层、形成于源漏电极层背离传感器一侧的金属反射层和黑色绝缘层，其中，黑色绝缘层遮挡金属反射层内至少两种信号线形成的间隙。在应用上述显示面板时，传感器可接收自金属反射层上的若干透光孔进入的光线，以对用户进行指纹识别，值得注意的是，现有显示面板中存在外部散光照射到金属反射层内至少两种信号线形成的间隙、并进入传感器干扰指纹识别的情况，但由于本发明提供的显示面板中黑色绝缘层遮挡上述间隙，因而外部散光无法通过间隙进入传感器，黑色绝缘层实现了对外部散光的遮挡。此外，由于黑色绝缘层直接与金属反射层接触，二者之间并不存在反射间隙，该结构进一步减小了外部散光进入传感器的可能性。
本发明提供的显示面板通过黑色绝缘层实现了对金属反射层内间隙的遮挡，换言之，黑色绝缘层实现了全面遮光的效果(除若干透光孔位置)，可提升显示面板指纹识别的精准度。
因此，上述显示面板设置了黑色绝缘层，利于消除外部光线从金属反射层的间隙进入传感器的现象发生，可提升显示面板指纹识别的效果。
优选地，所述源漏电极层为双层结构，其中：
所述源漏电极层包括第一源漏电极层和形成于所述第一源漏电极层朝向所述金属反射层的一侧的第二源漏电极层，且所述第一源漏电极层与所述第二源漏电极层之间形成有第一层间绝缘层，所述第二源漏电极层与所述金属反射层之间形成有第二层间绝缘层。
优选地，所述黑色绝缘层形成于所述金属反射层背离所述源漏电极层的一侧。
优选地，所述黑色绝缘层形成于所述金属反射层朝向所述源漏电极层的一侧，所述第二层间绝缘层由黑色绝缘材料制备、形成所述黑色绝缘层，且所述第二层间绝缘层与所述透光孔对应的部位设有过孔。
优选地，所述源漏电极层为单层结构，所述源漏电极层包括第一源漏电极层。
优选地，所述黑色绝缘层形成于所述金属反射层背离所述第一源漏电极层的一侧。
优选地，所述第一源漏电极层与所述金属反射层之间设有第一层间绝缘层，所述第一层间绝缘层由黑色绝缘材料制备、形成所述黑色绝缘层，且所述第一层间绝缘层与所述透光孔对应的部位设有过孔。
优选地，还包括形成于所述金属反射层背离所述源漏电极层一侧的像素定义层。
优选地，还包括设于所述传感器与所述源漏电极层之间的缓冲层。
本发明还提供一种显示装置，包括上述技术方案提供的任意一种显示面板。
附图说明
图1为本发明实施例提供的显示面板结构图；
图2为本发明实施例提供的显示面板又一结构图；
图3为本发明实施例提供的显示面板又一结构图；
图4为本发明实施例提供的显示面板又一结构图；
图5为本发明实施例提供的显示面板又一结构图。
图标：1-传感器；21-第一源漏电极层；22-第一层间绝缘层；23-第二源漏电极层；24-第二层间绝缘层；3-金属反射层；4-黑色绝缘层；5-像素定义层；6-缓冲层。
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，所描述的实施例仅仅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做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。
请参考图1，本发明提供一种显示面板，包括传感器1、形成于传感器1一侧的源漏电极层以及形成于源漏电极层背离传感器1一侧的金属反射层3，金属反射层3具有用于透过指纹识别所需光线的若干透光孔和至少两种信号线，两种信号线间形成间隙；
还包括与金属反射层3直接接触的黑色绝缘层4，黑色绝缘层4遮挡间隙。
上述显示面板中，显示面板包括传感器1、形成于传感器1一侧的源漏电极层、形成于源漏电极层背离传感器1一侧的金属反射层3和黑色绝缘层4，其中，黑色绝缘层4遮挡金属反射层3内至少两种信号线形成的间隙。在应用上述显示面板时，传感器1可接收自金属反射层3上的若干透光孔进入的光线(如图5中光线a)，以对用户进行指纹识别，值得注意的是，现有显示面板中存在外部散光照射到金属反射层3内至少两种信号线形成的间隙、并进入传感器1干扰指纹识别的情况，但由于本发明提供的显示面板中黑色绝缘层4遮挡上述间隙，因而外部散光无法通过间隙进入传感器1，黑色绝缘层4实现了对外部散光的遮挡。此外，由于黑色绝缘层4直接与金属反射层3接触，二者之间并不存在反射间隙，该结构进一步减小了外部散光进入传感器1的可能性。
本发明提供的显示面板通过黑色绝缘层4实现了对金属反射层3内间隙的遮挡，换言之，黑色绝缘层4实现了全面遮光的效果(除若干透光孔位置)，可提升显示面板指纹识别的精准度。
因此，上述显示面板设置了黑色绝缘层4，利于消除外部光线从金属反射层3的间隙进入传感器1的现象发生，可提升显示面板指纹识别的效果。
在上述技术方案的基础上，需要说明的是，本发明提供的显示面板中源漏电极层的结构有多种，至少为以下两种结构中的一种：
结构一：源漏电极层为双层结构，其中：
具体的，源漏电极层包括第一源漏电极层21和形成于第一源漏电极层21朝向金属反射层3的一侧的第二源漏电极层23，且第一源漏电极层21与第二源漏电极层23之间形成有第一层间绝缘层22，第二源漏电极层23与金属反射层3之间形成有第二层间绝缘层24。
在结构一中技术方案的基础上，黑色绝缘层4的具体结构形式存在多种可能，具体至少为以下两种中的一种：
形式一：请继续参考图1，黑色绝缘层4形成于金属反射层3背离源漏电极层的一侧。
具体的，形成于金属反射层3背离源漏电极层一侧的黑色绝缘层4遮挡金属反射层3不同信号线间形成的间隙，外部散光无法通过间隙进入传感器1，黑色绝缘层4实现对外部散光的遮挡。
需要说明的是，请参考图2中的结构，黑色绝缘层4可与金属反射层3同层设置，即填充于金属反射层3的间隙。
形式二：请参考图3，黑色绝缘层4形成于金属反射层3朝向源漏电极层的一侧，第二层间绝缘层24由黑色绝缘材料制备、形成黑色绝缘层4，且第二层间绝缘层24与透光孔对应的部位设有过孔。
具体的，当外部散光从金属反射层3不同信号线间形成的间隙射向显示面板内部，由于金属反射层3朝向传感器1的一侧为第二层间绝缘层24，且第二层间绝缘层24由黑色绝缘材料制备，因而第二层间绝缘层24可阻挡外部散光进一步进入，实现对外部散光的遮挡，提升指纹识别的灵敏度。
结构二：源漏电极层为单层结构，源漏电极层包括第一源漏电极层21。
需要说明的是，当源漏电极层为单层结构，制备过程中使用掩膜板数量较少，可降低工艺的复杂程度。
在结构二中技术方案的基础上，黑色绝缘层4的具体结构形式存在多种可能，具体至少为以下两种中的一种：
形式三：请参考图4，黑色绝缘层4形成于金属反射层3背离第一源漏电极层21的一侧。
具体的，形成于金属反射层3背离第一源漏电极层21一侧的黑色绝缘层4遮挡金属反射层3不同信号线间形成的间隙，外部散光无法通过间隙进入传感器1，黑色绝缘层4实现对外部散光的遮挡。
形式四：请参考图5，第一源漏电极层21与金属反射层3之间设有第一层间绝缘层22，第一层间绝缘层22由黑色绝缘材料制备、形成黑色绝缘层4，且第一层间绝缘层22与透光孔对应的部位设有过孔。
具体的，当外部散光从金属反射层3不同信号线间形成的间隙射向显示面板内部，由于金属反射层3朝向传感器1的一侧为第一层间绝缘层22，且第一层间绝缘层22由黑色绝缘材料制备，因而第一层间绝缘层22可阻挡外部散光进一步进入，实现对外部散光的遮挡，提升指纹识别的灵敏度。
在上述技术方案的基础上，需要说明的是，黑色绝缘层4的制备材料可选取为聚酰亚胺。
在上述技术方案的基础上，请继续参考图5，本发明提供的显示面板还包括形成于金属反射层3背离源漏电极层一侧的像素定义层5。
需要说明的是，像素定义层5的制备材料为透明材料。
在上述技术方案的基础上，为了便于源漏电极层的制作，优选的，请继续参考图1，本发明提供的显示面板还包括设于传感器1与源漏电极层之间的缓冲层6。
本发明还提供一种显示装置，包括上述技术方案提供的任意一种显示面板。
显然，本领域的技术人员可以对本发明实施例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 (10)

1.一种显示面板，其特征在于，包括传感器、形成于所述传感器一侧的源漏电极层以及形成于所述源漏电极层背离所述传感器一侧的金属反射层，所述金属反射层具有用于透过指纹识别所需光线的若干透光孔和至少两种信号线，两种所述信号线间形成间隙；
还包括与所述金属反射层直接接触的黑色绝缘层，所述黑色绝缘层遮挡所述间隙。
2.根据权利要求1所述的显示面板，其特征在于，所述源漏电极层为双层结构，其中：
所述源漏电极层包括第一源漏电极层和形成于所述第一源漏电极层朝向所述金属反射层的一侧的第二源漏电极层，且所述第一源漏电极层与所述第二源漏电极层之间形成有第一层间绝缘层，所述第二源漏电极层与所述金属反射层之间形成有第二层间绝缘层。
3.根据权利要求2所述的显示面板，其特征在于，所述黑色绝缘层形成于所述金属反射层背离所述源漏电极层的一侧。
4.根据权利要求2所述的显示面板，其特征在于，所述黑色绝缘层形成于所述金属反射层朝向所述源漏电极层的一侧，所述第二层间绝缘层由黑色绝缘材料制备、形成所述黑色绝缘层，且所述第二层间绝缘层与所述透光孔对应的部位设有过孔。
5.根据权利要求1所述的显示面板，其特征在于，所述源漏电极层为单层结构，所述源漏电极层包括第一源漏电极层。
6.根据权利要求5所述的显示面板，其特征在于，所述黑色绝缘层形成于所述金属反射层背离所述第一源漏电极层的一侧。
7.根据权利要求5所述的显示面板，其特征在于，所述第一源漏电极层与所述金属反射层之间设有第一层间绝缘层，所述第一层间绝缘层由黑色绝缘材料制备、形成所述黑色绝缘层，且所述第一层间绝缘层与所述透光孔对应的部位设有过孔。
8.根据权利要求1-7任一项所述的显示面板，其特征在于，还包括形成于所述金属反射层背离所述源漏电极层一侧的像素定义层。
9.根据权利要求1-7任一项所述的显示面板，其特征在于，还包括设于所述传感器与所述源漏电极层之间的缓冲层。
10.一种显示装置，其特征在于，包括如权利要求1-9任一项所述的显示面板。
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