CN110416263A - 一种显示面板及其制作方法 - Google Patents

一种显示面板及其制作方法 Download PDF

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CN110416263A
CN110416263A CN201910658902.7A CN201910658902A CN110416263A CN 110416263 A CN110416263 A CN 110416263A CN 201910658902 A CN201910658902 A CN 201910658902A CN 110416263 A CN110416263 A CN 110416263A
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layer
pole plate
display panel
open region
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韩佰祥
曹昆
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Priority to CN201910658902.7A priority Critical patent/CN110416263A/zh
Priority to PCT/CN2019/106924 priority patent/WO2021012374A1/zh
Priority to US16/615,474 priority patent/US11985859B2/en
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Abstract

本发明提供一种显示面板及其制作方法，该显示面板包括：透光区域，用于设置有机发光单元；存储区域，用于设置存储电容，所述透光区域和所述存储区域的位置对应，所述存储电容包括第一极板和第二极板，所述第一极板的材料和所述第二极板的材料均为透明材料。本发明的显示面板及其制作方法，能够减小像素的占用面积。

Description

一种显示面板及其制作方法
【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其制作方法。
【背景技术】
现有的显示面板通常包括透光区域和存储区域，透光区域用于设置有机发光单元，有机发光单元包括有机发光层，存储区域用于设置存储电容，存储电容用于存储电荷。
然而，由于现有的存储电容是通过栅极和源/漏极金属层制作得到的，因此为了不影响开口率，需要避开透光区域，从而导致像素的占用面积增大，降低了面板的利用率。
因此，有必要提供一种显示面板及其制作方法，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其制作方法，能够减小像素的占用面积和提高显示面板的利用率。
为解决上述技术问题，本发明提供一种显示面板，包括：
透光区域，用于设置有机发光单元；
存储区域，用于设置存储电容，所述透光区域和所述存储区域的位置对应，所述存储电容包括第一极板和第二极板，所述第一极板的材料和所述第二极板的材料均为透明材料。
本发明还提供一种显示面板的制作方法，包括:
在衬底基板上制作透明薄膜，对所述透明薄膜进行图案化处理得到有源层和电极部；
对所述电极部进行导体化处理，得到第一极板；
在所述有源层及所述第一极板上形成平坦层，所述平坦层上设置有开口区；所述开口区的位置与所述第一极板的位置对应；
在所述平坦层上及所述开口区内形成阳极层，以使与所述开口区的位置对应的阳极层形成第二极板；
在所述阳极层上形成像素定义层，所述像素定义层上设置有像素定义区，所述像素定义区与所述开口区的位置对应；
在所述像素定义区内制作有机发光层；
在所述有机发光层上制作阴极。
本发明的显示面板及其制作方法，包括透光区域，用于设置有机发光单元；存储区域，用于设置存储电容，透光区域和存储区域的位置对应，所述存储电容包括第一极板和第二极板，且所述第一极板的材料和所述第二极板的材料均为透明材料，因此不会降低开口率，且透光区域和存储区域的位置对应，可以减小了像素的占用面积，进而提高了显示面板的利用率。
【附图说明】
图1为现有显示面板的结构示意图；
图2为本发明显示面板的制作方法的第一步和第二步的结构示意图。
图3为本发明显示面板的制作方法的第三步和第四步的结构示意图。
图4为本发明显示面板的制作方法的第五步的结构示意图。
图5为本发明显示面板的制作方法的第六步和第七步的结构示意图。
【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。
如图1所示，现有的显示面板包括透光区域101和存储区域102。现有的显示面板的截面结构包括衬底基板11、第一金属层12、有源层13、第二金属层14、平坦层15、阳极层16、像素定义层17、有机发光层18以及阴极19。其中第一金属层12包括栅极121和第一极板122，第二金属层14包括源极、漏极和第二极板142。像素定义层17上设置有像素定义区，有机发光层18位于像素定义区内，阴极19位于有机发光层18上。
请参照图2至5，图2为本发明显示面板的制作方法的第一步和第二步的结构示意图。
在一实施方式中，本发明的显示面板的制作方法包括：
S101、在衬底基板上制作透明薄膜，对所述透明薄膜进行图案化处理得到有源层和电极部；
如图2所示，例如，在衬底基板11上制作透明薄膜22，对所述透明薄膜22进行图案化处理得到有源层221和电极部。所述方法还可包括：在衬底基板11上形成第一金属层，对第一金属层进行图案化处理形成栅极21。在栅极21上制作有源层22。
其中所述有源层221的材料为透明金属氧化物，其中所述有源层221的材料为铟镓锌氧化物。
S102、对所述电极部进行导体化处理得到第一极板；
如图2所示，例如，对所述电极部进行导体化处理得到第一极板222。
所述方法还可包括：在有源层221上形成第二金属层23，对第二金属层进行图案化处理形成源极和漏极。
S103、在所述有源层及所述第一极板上形成平坦层，所述平坦层上设置有开口区；
如图3所示，例如，在所述第二金属层上形成平坦层24，所述平坦层24上设置有开口区241；所述开口区241的位置与所述第一极板222的位置对应。
S104、在所述平坦层上及所述开口区内形成阳极层，以使与所述开口区的位置对应的阳极层形成第二极板；
如图3所示，例如，在所述平坦层24上及所述开口区241内形成阳极层25，以使与所述开口区241的位置对应的阳极层25形成第二极板251。所述平坦层24上还设置有过孔，所述阳极层25通过所述过孔与所述漏极连接。
S105、在所述阳极层上形成像素定义层，所述像素定义层上设置有像素定义区；
如图4所示，例如，在所述阳极层25上形成像素定义层26，所述像素定义层26上设置有像素定义区261，所述像素定义区261与所述开口区241的位置对应。其中在开口区241的底部未覆盖像素定义层26。
S106、在所述像素定义区内制作有机发光层；
结合图4和图5，例如，在所述像素定义区261内制作有机发光层27。
S107、在所述有机发光层上制作阴极。
如图5所示，例如，在所述有机发光层27上制作阴极28。
如图5所示，本发明还提供一种显示面板，其包括透光区域201和存储区域202，透光区域201用于设置有机发光单元；有机发光单元的截面结构包括阳极、有机发光层27以及阴极。
存储区域202用于设置存储电容，所述透光区域201和所述存储区域201的位置对应，所述存储电容包括第一极板222和第二极板251，所述第一极板222的材料和所述第二极板251的材料均为透明材料。
在一实施方式中，所述显示面板的截面结构还包括衬底基板11、第一金属层、有源层221、第二金属层23、平坦层24、阳极层25、像素定义层26、有机发光层27以及阴极28。
第一金属层设于衬底基板11上，所述第一金属层包括栅极21。所述有缘层221位于第一金属层上。所述第一极板222与所述有源层221位于同一层。当然，第一极板可位于其他层。在一实施方式中，为了简化制程工艺，所述第一极板222的初始材料和所述有源层221的材料相同，所述第一极板222是对所述有源层221的材料进行导体化处理得到的。在一实施方式中，所述有源层221的材料为透明金属氧化物。其中所述有源层221的材料为铟镓锌氧化物。当然第一极板222和有源层221也可单独制作。
所述第二金属层23设于有源层221上，第二金属层23包括源极和漏极。
结合图3，所述平坦层24位于所述第二金属层23上。所述平坦层24上还设置有过孔(图中未示出)和开口区241，所述开口区241的位置与所述第一极板222的位置对应。
在一实施方式中，所述第二极板251与所述阳极层25位于同一层。当然，第二极板251也可位于其他层。
其中，为了简化制程工艺，所述阳极层25位于所述平坦层24上及所述开口区241内，其中所述第二极板251为与所述开口区241的位置对应的阳极层，也即与所述开口区241的位置对应的阳极层25形成第二极板251。所述阳极层25可通过所述过孔与所述漏极连接。
结合图4，像素定义层26位于所述阳极层25上，所述像素定义层26上设置有像素定义区261，所述像素定义区261与所述开口区241的位置对应。
有机发光层27位于所述像素定义区261内。阴极28位于所述有机发光层27上。当然，显示面板还可包括封装层，封装层位于阴极28上。
可以理解的，本发明的显示面板的制作方法可采用上述方法制作，当然还可采用其他制作方法得到。
由于将透光区域和存储区域的位置对应，且第一极板的材料和第二极板的材料均为透明材料，因此在不降低开口率的同时减小了像素的占用面积，从而提高了显示面板的利用率。
本发明的显示面板及其制作方法，包括透光区域，用于设置有机发光单元；存储区域，用于设置存储电容，透光区域和存储区域的位置对应，所述存储电容包括第一极板和第二极板，且所述第一极板的材料和所述第二极板的材料均为透明材料，因此不会降低开口率，且透光区域和存储区域的位置对应，可以减小了像素的占用面积，进而提高了显示面板的利用率。
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：
透光区域，用于设置有机发光单元；
存储区域，用于设置存储电容，所述透光区域和所述存储区域的位置对应，所述存储电容包括第一极板和第二极板，所述第一极板的材料和所述第二极板的材料均为透明材料。
2.根据权利要求1所述的显示面板，其特征在于，所述显示面板的截面结构包括有源层，所述第一极板与所述有源层位于同一层。
3.根据权利要求1所述的显示面板，其特征在于，
所述第一极板的初始材料和所述有源层的材料相同，所述第一极板是对所述有源层的材料进行导体化处理得到的。
4.根据权利要求3所述的显示面板，其特征在于，
所述有源层的材料为透明金属氧化物。
5.根据权利要求4所述的显示面板，其特征在于，
所述有源层的材料为铟镓锌氧化物。
6.根据权利要求1所述的显示面板，其特征在于，所述显示面板的截面结构包括阳极层，所述第二极板与所述阳极层位于同一层。
7.根据权利要求6所述的显示面板，其特征在于，所述显示面板的截面结构还包括：平坦层，所述平坦层上设置有开口区；所述开口区的位置与所述第一极板的位置对应；
所述阳极层位于所述平坦层上及所述开口区内，其中所述第二极板为与所述开口区的位置对应的阳极层。
8.根据权利要求7所述的显示面板，其特征在于，所述显示面板的截面结构还包括：
像素定义层，位于所述阳极层上，所述像素定义层上设置有像素定义区，所述像素定义区与所述开口区的位置对应；
有机发光层，位于所述像素定义区内；
阴极，位于所述有机发光层上。
9.根据权利要求7所述的显示面板，其特征在于，所述显示面板的截面结构还包括第二金属层，所述第二金属层包括源极和漏极；
所述平坦层上还设置有过孔，所述阳极层通过所述过孔与所述漏极连接。
10.一种显示面板的制作方法，其特征在于，包括：
在衬底基板上制作透明薄膜，对所述透明薄膜进行图案化处理得到有源层和电极部；
对所述电极部进行导体化处理，得到第一极板；
在所述有源层及所述第一极板上形成平坦层，所述平坦层上设置有开口区；所述开口区的位置与所述第一极板的位置对应；
在所述平坦层上及所述开口区内形成阳极层，以使与所述开口区的位置对应的阳极层形成第二极板；
在所述阳极层上形成像素定义层，所述像素定义层上设置有像素定义区，所述像素定义区与所述开口区的位置对应；
在所述像素定义区内制作有机发光层；
在所述有机发光层上制作阴极。
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