CN111047971A - 一种显示面板及电子装置 - Google Patents

一种显示面板及电子装置 Download PDF

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CN111047971A
CN111047971A CN201911174421.5A CN201911174421A CN111047971A CN 111047971 A CN111047971 A CN 111047971A CN 201911174421 A CN201911174421 A CN 201911174421A CN 111047971 A CN111047971 A CN 111047971A
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于晓平
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TCL China Star Optoelectronics Technology Co Ltd
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TCL China Star Optoelectronics Technology Co Ltd
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Priority to PCT/CN2019/123476 priority patent/WO2021103105A1/zh
Priority to US16/624,212 priority patent/US11545576B2/en
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Abstract

本发明提供一种显示面板及电子装置，该面板包括：衬底基板，所述衬底基板上设置有金属层和减反膜；所述减反膜设于所述金属层的出光侧，所述减反膜包括保护层和暗化层，所述保护层位于所述暗化层和所述金属层之间，所述暗化层的材料包括MoaXbOc、MoaXbNd、MoaXbOcNd、MoaXbWc、MoaXbCc以及AlaObNc中的至少一种，其中a、c和d均为大于0的有理数、b为大于等于0的有理数，X为钽、钒、镍、铌、锆、钨、钛、铼以及铪中的至少一种。本发明的显示面板及电子装置，能够提高显示效果和显示质量。

Description

一种显示面板及电子装置
【技术领域】
本发明涉及显示技术领域，特别是涉及一种显示面板及电子装置。
【背景技术】
随着显示面板的不断发展，用户对显示面板的要求越来越高，其中对比度是评估显示面板的显示质量的重要指标之一。
对比度与显示面板的亮态亮度、暗态亮度以及反射率相关，在实际使用过程中，由于周围环境光的影响，部分环境光进入显示面板，被显示面板中的金属层反射，然而现有的显示面板的金属层的反射率较大，导致反射光的光强比较强，从而影响画面的对比度，降低了显示效果和显示质量。
因此，有必要提供一种显示面板及电子装置，以解决现有技术所存在的问题。
【发明内容】
本发明的目的在于提供一种显示面板及电子装置，能够提高显示效果和显示质量。
为解决上述技术问题，本发明提供一种显示面板，包括：
衬底基板，所述衬底基板上设置有金属层和减反膜；所述减反膜设于所述金属层的出光侧，所述减反膜包括保护层和暗化层，所述保护层位于所述暗化层和所述金属层之间，所述暗化层的材料包括MoaXbOc、MoaXbNd、MoaXbOcNd、MoaXbWc、MoaXbCc以及AlaObNc中的至少一种，其中a、c和d均为大于0的有理数、b为大于等于0的有理数，X为钽、钒、镍、铌、锆、钨、钛、铼以及铪中的至少一种。
本发明还提供一种电子装置，其包括上述显示面板。
本发明的显示面板及电子装置，包括衬底基板，所述衬底基板上设置有金属层和减反膜；所述减反膜设于所述金属层的出光侧，所述减反膜包括保护层和暗化层，所述保护层位于所述暗化层和所述金属层之间，所述暗化层的材料包括MoaXbOc、MoaXbNd、MoaXbOcNd、MoaXbWc、MoaXbCc以及AlaObNc中的至少一种；由于在金属层的出光侧设置减反膜，因此可以有效地减少金属层对环境光的反射，避免影响画面的对比度，进而提高了显示效果和显示质量。
【附图说明】
图1为本发明实施例一的显示面板的结构示意图。
图2为本发明实施例二的显示面板的结构示意图。
【具体实施方式】
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。在图中，结构相似的单元是以相同标号表示。
请参照图1，图1为本发明实施例一的显示面板的结构示意图。
如图1所示，本发明的显示面板包括：衬底基板11、金属层以及减反膜20。
其中衬底基板11可以为玻璃基板。
金属层设于衬底基板11上，金属层包括第一子金属层14和第二子金属层18，第二子金属层18设于第一子金属层14上。其中第一子金属层14包括栅极，第二子金属层18包括源漏极。在一实施方式中，为了进一步减小环境光的反射，所述第一子金属层14的厚度范围和所述第二子金属层18的厚度范围均为200nm～700nm，此外当第一子金属层和第二子金属层的厚度在此范围内时，可以提高金属层与暗化层之间的附着力。在一实施方式中，为了提高薄膜晶体管的导电性能，所述金属层的材料包括Cu、Mo、Ti、Al、Ni、Nb、Ta以及Cr中的至少一种。其中第一子金属层14和第二子金属层18的材料均包括Cu、Mo、Ti、Al、Ni、Nb、Ta、Cr中的至少一种。
所述减反膜20设于所述栅极14的下方。也即设于第一子金属层14的出光侧。其中本实施例的显示面板的出光方向沿第一预设方向(由上向下)，以液晶显示面板为例，此时阵列基板朝向外侧，也即阵列基板靠近观察者。在另一实施方式中，所述减反膜20也可设于所述源漏极的下方。在其他实施方式中，在所述源漏极的下方以及所述栅极14的下方均设置有所述减反膜20。
所述减反膜20包括暗化层21和保护层22。
所述暗化层21的材料包括MoaXbOc、MoaXbNd、MoaXbOcNd、MoaXbWc、MoaXbCc以及AlaObNc中的至少一种，其中a、c和d均为大于0的有理数、b为大于等于0的有理数，X为钽、钒、镍、铌、锆、钨、钛、铼以及铪中的至少一种。其中暗化层21与第一子金属层14的折射率不同，从而对反射光产生干涉。所述暗化层21的厚度范围可为30nm～100nm；优选40～60nm。所述暗化层21可以直接选择对应的基材通过沉积方式形成，也可以直接选择金属或金属合金的基材，然后在沉积制程时通入氧气或氮气或CO2制备而成。其中沉积方式可以为物理气相沉积(PVD，Physical Vapor Deposition)。
所述保护层22位于所述暗化层21和所述第一子金属层14之间，所述保护层22的作用是为了改善暗化层21与第一子金属层14的附着力不佳的问题，以避免影响减反效果。如果暗化层21直接与第一子金属层14(比如业界常用的Cu)直接接触，会出现附着力不佳的问题，进而导致金属层在后续图案化的黄光制程中显影液渗入而损坏暗化层，无法达成降低反射率的目的。
在一实施方式中，为了提高金属层与暗化层之间的附着力，进一步降低环境光的反射，所述保护层22的材料包括Mo、Ti、Si、SiOx以及SiNx中至少一种。所述保护层22的厚度范围可为1nm～50nm。
由于在栅极的下方和或源漏极的下方设置减反膜，因此可以对第一子金属层和或第二子金属层产生的反射光进行干涉，降低了第一子金属层和或第二子金属层对环境光的反射率，避免影响对比度，提升显示面板的画质，进而提高了显示效果和显示质量。
在一实施方式中，本实施例的显示面板还可包括栅绝缘层15和有源层16。栅绝缘层15设于栅极14上，有源层16位于栅极和源漏极之间。有源层16可以包括基底161和掺杂层162，基底161的材料为非晶硅，掺杂层162的材料为n型的磷重掺杂硅。
可以理解的，本实施例的显示面板可以为液晶显示面板或者有机发光二极管显示面板。
请参照图2，图2为本发明实施例二的显示面板的结构示意图。
如图2所示，本实施例的显示面板与实施例一的区别在于，本实施例的显示面板的出光方向为第二预设方向，也即本实施例的显示面板的出光方向由下向上，本实施例的出光方向与实施例一的出光方向相反，以显示面板为液晶显示面板为例，此时彩膜基板朝向外侧，也即彩膜基板靠近观察者。
且本实施例的减反膜20设于所述源漏极18的上方。在另一实施方式中，所述减反膜20可设于所述栅极14的上方。在其他实施方式中，在所述栅极14的上方和所述源漏极的上方均设置有所述减反膜20。
其中暗化层21与第二子金属层18的折射率不同，从而对反射光产生干涉。
所述保护层22位于所述暗化层21和所述第二子金属层18之间，所述保护层22的作用是为了改善暗化层21与第二子金属层18的附着力不佳的问题，以避免影响减反效果。如果暗化层21直接与第一子金属层18(比如业界常用的Cu)直接接触，会出现附着力不佳的问题，进而导致金属层在后续图案化的黄光制程中显影液渗入损坏暗化层，无法达成降低反射率的目的。
由于在源漏极和或栅极的上方设置减反膜，因此可以对第二金属层和或第一子金属层产生的反射光进行干涉，降低了第一子金属层和或第二子金属层对环境光的反射率，避免影响对比度，提升显示面板的画质，进而提高了显示效果和显示质量。
本发明还提供一种电子装置，其包括上述任意一种所述显示面板。该电子装置可以为手机、平板电脑等电子产品。
本发明的显示面板及电子装置，包括衬底基板，所述衬底基板上设置有金属层和减反膜；所述减反膜设于所述金属层的出光侧，所述减反膜包括保护层和暗化层，所述保护层位于所述暗化层和所述金属层之间，所述暗化层的材料包括MoaXbOc、MoaXbNd、MoaXbOcNd、MoaXbWc、MoaXbCc以及AlaObNc中的至少一种；由于在金属层的出光侧设置减反膜，因此可以有效地减少金属层对环境光的反射，避免影响画面的对比度，进而提高了显示效果和显示质量。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (10)

1.一种显示面板，其特征在于，包括：
衬底基板，所述衬底基板上设置有金属层和减反膜；所述减反膜设于所述金属层的出光侧，所述减反膜包括保护层和暗化层，所述保护层位于所述暗化层和所述金属层之间，所述暗化层的材料包括MoaXbOc、MoaXbNd、MoaXbOcNd、MoaXbWc、MoaXbCc以及AlaObNc中的至少一种，其中a、c和d均为大于0的有理数、b为大于等于0的有理数，X为钽、钒、镍、铌、锆、钨、钛、铼以及铪中的至少一种。
2.根据权利要求1所述的显示面板，其特征在于，
所述保护层的材料包括Mo、Ti、Si、SiOx以及SiNx中至少一种。
3.根据权利要求1所述的显示面板，其特征在于，
所述金属层包括第一子金属层和设于所述第一子金属层上的第二子金属层，所述第一子金属层包括栅极，所述第二子金属层包括源漏极；
当所述显示面板的出光方向沿第一预设方向时，所述减反膜设于所述栅极和/所述源漏极的下方。
4.根据权利要求3所述的显示面板，其特征在于，
当所述显示面板的出光方向沿第二预设方向时，所述减反膜设于所述栅极和/所述源漏极的上方。
5.根据权利要求3所述的显示面板，其特征在于，
所述第一子金属层的厚度范围和所述第二子金属层的厚度范围均为200nm～700nm。
6.根据权利要求1所述的显示面板，其特征在于，
所述暗化层的厚度范围为30nm～100nm。
7.根据权利要求1所述的显示面板，其特征在于，
所述保护层的厚度范围为1nm～50nm。
8.根据权利要求1所述的显示面板，其特征在于，
所述显示面板为液晶显示面板或者有机发光二极管显示面板。
9.根据权利要求1所述的显示面板，其特征在于，
所述金属层的材料包括Cu、Mo、Ti、Al、Ni、Nb、Ta以及Cr中的至少一种。
10.一种电子装置，其特征在于，包括如权利要求1至9任意一项所述的显示面板。
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