CN104777649A - 显示基板及其制备方法、显示装置 - Google Patents

显示基板及其制备方法、显示装置 Download PDF

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CN104777649A
CN104777649A CN201510191968.1A CN201510191968A CN104777649A CN 104777649 A CN104777649 A CN 104777649A CN 201510191968 A CN201510191968 A CN 201510191968A CN 104777649 A CN104777649 A CN 104777649A
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尹炳坤
韩俊号
王文龙
操彬彬
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BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
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Hefei Xinsheng Optoelectronics Technology Co Ltd
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Priority to US15/096,371 priority patent/US9964801B2/en
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133553Reflecting elements
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133371Cells with varying thickness of the liquid crystal layer
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133553Reflecting elements
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/136222Colour filters incorporated in the active matrix substrate
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/136227Through-hole connection of the pixel electrode to the active element through an insulation layer
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract

本发明属于显示技术领域,具体涉及一种显示基板及其制备方法、显示装置。该显示基板,包括多个像素区以及设置于相邻所述像素区边界区域的薄膜晶体管,每一所述像素区划分为透射区和反射区,所述薄膜晶体管的上方设置有保护层,所述保护层在对应着所述反射区的区域设置为凸起部,对应着所述薄膜晶体管的区域开设有过孔。该显示基板能有效避免漏光,还具有较好的色均匀度和显示亮度;而且,该显示基板的制备方法能节约工艺步骤,节省生产成本。

Description

显示基板及其制备方法、显示装置
技术领域
本发明属于显示技术领域,具体涉及一种显示基板及其制备方法、显示装置。
背景技术
目前,液晶显示装置(Liquid Crystal Display:简称LCD)以其优异的性能与成熟的技术成为市场上的主流产品。液晶显示装置根据光源类型加以分类,可以分为透射式(transmissive)、反射式(reflective)和半透半反式(transflective)。其中,半透半反式液晶显示装置综合了反射式液晶显示装置与透射式液晶显示装置的优点,既适于在室内使用,也适于在室外使用,因此在便携式移动电子设备中得到了广泛的应用。
现有的半透半反式液晶显示屏中,透射率和反射率相互牵制,透射率高反射率低,反之反射率高透射率低;同时由于反射光与透射光的光程差异,造成反射模式下的显示对比度下降;同时,现有的半透半反式液晶显示屏中采用对合工艺形成,制备工艺也较繁琐,还存在因对合偏差而造成漏光的缺点。
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,提供一种显示基板及其制备方法、显示装置,该显示基板能有效避免漏光,还具有较好的色均匀度和显示亮度。
解决本发明技术问题所采用的技术方案是该显示基板,包括多个像素区以及设置于所述像素区的薄膜晶体管,每一所述像素区划分为透射区和反射区,所述薄膜晶体管的上方设置有保护层,所述保护层在对应着所述反射区的区域设置为凸起部,对应着所述薄膜晶体管的区域开设有过孔。
优选的是,所述凸起部的上方还设置有色阻层,所述色阻层还延伸至所述透射区,且所述色阻层对应着所述透射区的厚度为对应着所述反射区的厚度的两倍。
优选的是,对应着所述保护层的凸起部和所述色阻层之间还设置有反射层。
优选的是,所述色阻层的上方还设置有像素电极层,所述像素电极层与所述薄膜晶体管的漏极通过开设于所述保护层中的所述过孔电连接。
优选的是,所述保护层采用氮化硅材料或氧化硅材料形成。
优选的是,该所述显示基板中每四个像素区形成一个像素单元,每一所述像素单元包括红色子像素、绿色子像素、蓝色子像素和白色子像素,红色子像素中的所述色阻层为红色,绿色子像素中的所述色阻层为绿色,蓝色子像素中的所述色阻层为蓝色。
一种显示基板的制备方法,该显示基板包括多个像素区以及设置于所述像素区的薄膜晶体管,每一所述像素区划分为透射区和反射区,该制备方法包括:采用一次构图工艺在所述薄膜晶体管的上方形成保护层,所述保护层在对应着所述反射区的区域形成凸起部,对应着所述薄膜晶体管的区域形成过孔。
优选的是,所述保护层采用多色调曝光工艺形成,其中:对应着形成所述凸起部的区域为不透光区,对应着形成所述过孔的区域为全透光区,其他区域为半透光区。
一种显示装置,包括上述的显示基板以及与所述显示基板相对设置的公共电极层。
优选的是,所述保护层的凸起部与所述反射层的厚度之和为对应着透射区的所述显示基板与所述公共电极层相对的表面之间的距离的一半。
本发明的有益效果是:该显示基板采用COA结构解决了现有技术中由彩膜基板和阵列基板因对盒偏差造成的漏光问题;同时解决了现有技术中半透半反显示面板中透射区与反射区色不均的问题,提高了反射模式下的显示对比度,使得该半透半反式显示面板在室内弱光透射及室外强光反射均能够实现均匀显示,可以较佳地实现在室内及室外的显示;同时,该显示基板采用RGBW四色型像素设计,改善了现有技术中半透半反显示面板透射率与反射率相互牵制开口率低的问题,极大的提升了透射区开口率,同时提高了像素显示亮度,从而实现较好的显示效果,还降低了能耗,节约了生产和使用成本;
该显示基板的制备方法,采用COA结构在形成薄膜晶体管上方的保护层的同时即形成用于保证反射区与透射区的光程差相等的凸起部,能节省工艺步骤,且使得形成的显示基板获得较佳的显示效果;
该显示装置具有良好的显示效果。
附图说明
图1为本发明实施例1中透射区与反射区的划分示意图;
图2为本发明实施例1中显示基板中一个像素的结构示意图;
图3为本发明实施例1中显示基板中一个像素单元的结构示意图;
图中:
1-透射区;2-反射区;
10-衬底;11-栅极;110-栅线;12-栅绝缘层;13-有源层;14-源极;140-数据线;15-漏极;16-保护层;160-凸起部;17-反射层;18-色阻层;19-像素电极层;20-公共电极层。
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基板及其制备方法、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基板,该显示基板集成有彩色化的色阻层,相比现有技术中采用彩膜基板和阵列基板对合形成显示面板的方式,能节省对合工艺,保证像素对位的精确性,避免了因对合偏差造成的漏光问题;同时,该显示基板还采用了RGBW四色型像素显示方式,能较佳地保证像素显示亮度。
该显示基板包括多个像素区以及设置于像素区的薄膜晶体管,例如设置于相邻像素区边界区域的薄膜晶体管,如图1所示,每一像素区划分为透射区1和反射区2,薄膜晶体管的上方设置有保护层16;同时参考图2,保护层16在对应着反射区2的区域设置为凸起部160,对应着薄膜晶体管的区域开设有过孔。通过设置凸起部160,能使穿过该显示基板的透射区1和反射区2的光线形成匹配的光程差。也即,反射区2因保护层16在其对应区域的凸起部160,使得反射区2与透射区1的光程差一致,可以避免反射区与透射区的亮度差异。
如图2所示,透射区1和反射区2还设置有色阻层18,色阻层18对应着透射区1的厚度为对应着反射区2的厚度的两倍。容易理解的是,对应着保护层16的凸起部160和色阻层18之间还设置有反射层17。其中,反射金属为高反射率的金属材料,例如包括银或铝或铬,这里不做限定。
通过反射层17,将经过色阻层18进入显示基板内部的外部环境光反射回色阻层18,被反射的光线第二次经过色阻层18后进入人的视野,由于色阻层18对应着透射区1的厚度为对应着反射区2的厚度的两倍,因此能保证透射区1和反射区2获得相同的色度。
一般的,薄膜晶体管包括栅极、有源层、源极和漏极。本实施例中,在保护层对应着薄膜晶体管的区域开设的过孔对应着薄膜晶体管的漏极部位。如图2所示,色阻层18的上方还设置有像素电极层19,像素电极层19与薄膜晶体管的漏极15通过开设于保护层16中的过孔电连接。
优选的是,保护层16采用氮化硅SiNx材料或氧化硅SiOx材料形成,能起到较好的绝缘和衬垫作用。
在本实施例中,为了进一步提高像素显示亮度,如图3所示,该显示基板中每四个像素区形成一个像素单元,每一像素单元包括红色子像素R、绿色子像素G、蓝色子像素B和白色子像素W,红色子像素R中的色阻层为红色,绿色子像素G中的色阻层为绿色,蓝色子像素B中的色阻层为蓝色,白色子像素W部分可直接省略色阻层的制备。通过设置白色子像素W,可以对作为整体的像素单元的亮度进行较好的补偿和调节,有利于提升整体像素的透过率,减少色阻层对光的吸收,进一步避免反射区与透射区亮度差。
在本实施例中,保护层16在反射区2形成凸起部160,使得反射区2的厚度与透射区1的厚度相配合。采用该显示基板可以形成液晶面板,优选的是,保护层16的凸起部160与反射层17的厚度之和为对应着透射区1的显示基板与公共电极层20相对的表面之间的距离的一半,即保护层16的凸起部160与反射层17的厚度之和为液晶盒厚的一半,使得显示基板与公共电极层20形成液晶面板后,其中对应反射区2的盒厚能设置为对应透射区1的盒厚的一半,保证进入该液晶面板中透射区1与反射区2的光线的光程相等,保证透射区1和反射区2的色差较小以及色彩匹配。
由上述结构可见,本实施例中的显示基板为COA(Color FilterOn Array)结构,形成了能反射外界光实现反射显示的反射区以及透射背光源的光线实现透射显示的透射区,实现了半透半反功能,解决了现有技术中由彩膜基板和阵列基板因对盒偏差造成的漏光问题;同时解决了现有技术中半透半反显示面板中透射区与反射区色不均的问题,提高了反射模式下的显示对比度,使得该半透半反式显示面板在室内弱光透射及室外强光反射均能够实现均匀显示,可以较佳地实现在室内及室外的显示;同时,该显示基板采用RGBW四色型像素设计,改善了现有技术中半透半反显示面板透射率与反射率相互牵制开口率低的问题,极大的提升了透射区开口率,同时提高了像素显示亮度,从而实现较好的显示效果,还降低了能耗,节约了生产和使用成本。
实施例2:
本实施例还提供一种与实施例1中的显示基板相对应的显示基板的制备方法,该显示基板通过将薄膜晶体管上方的保护层和用于保证反射区与透射区的光程差相等的凸起部同时形成,简化了该显示基板的制备。由于该显示基板的制备方法能采用较少的工艺步骤即实现半透半反显示基板的制备,节约了生产和使用成本,且制备的显示基板显示效果好。
该显示基板包括多个像素区以及设置于像素区的薄膜晶体管,例如设置于相邻像素区边界区域的薄膜晶体管,每一像素区划分为透射区和反射区,该制备方法包括:采用一次构图工艺在薄膜晶体管的上方形成保护层,保护层在对应着反射区的区域形成凸起部,对应着薄膜晶体管的区域形成过孔。节省构图工艺。
优选的是,保护层采用多色调曝光工艺形成,其中:对应着形成凸起部160的区域为不透光区,对应着形成过孔的区域为全透光区,其他区域为半透光区。采用同一掩模板形成多样的图形,能有效节省生产成本。
作为该显示基板的一个完整的制备流程,参考图2,该显示基板的制备方法简述如下:
步骤S1):在衬底10上沉积栅电极金属,并通过构图工艺,即通过曝光、显影、蚀刻工艺,形成包括栅极11和栅线110的图形。
步骤S2):在栅极11和栅线110的图形的上方形成栅绝缘层12及有源层13,并通过构图工艺,即通过曝光、显影、蚀刻工艺,在栅极11图形正上方形成包括有源层13的图形。
步骤S3):在有源层13的图形上方沉积源漏电极金属,并通过构图工艺,即通过曝光、显影、蚀刻工艺在有源层13图形上方形成包括源极14(与数据线140)和漏极15的图形,进而通过干刻工艺形成源极14与漏极15之间的导电沟道。
步骤S4):沉积保护层材料,通过刻蚀工艺形成保护层,该保护层在对应着薄膜晶体管区域形成背沟道保护层,在对应着反射区的区域形成凸起部160,凸起部160使得反射区与其他区域形成段差。
步骤S5):沉积反射金属,并通过构图工艺,即通过曝光、显影、蚀刻工艺,形成包括反射层17的图形。其中,反射金属为高反射率的金属材料,例如包括银或铝或铬,这里不做限定。
步骤S6):沉积色阻层材料,并通过半色调掩模板使得对应着反射区的色阻层18的厚度d为对应着透射区的色阻层18的厚度D的1/2。
步骤S7):沉积透明像素电极金属,并通过构图工艺,即通过曝光、显影、蚀刻工艺形成包括像素电极层19的图形。
在制备形成上述显示基板的基础上,将显示基板与具有公共电极层20的基板对合,并在二者之间形成液晶层,从而形成液晶面板。
该显示基板的制备方法,采用COA结构在形成薄膜晶体管上方的保护层的同时即形成用于保证反射区与透射区的光程差相等的凸起部,能节省工艺步骤,且使得形成的显示基板获得较佳的显示效果。
实施例3:
本实施例提供一种显示装置,包括实施例1中的显示基板以及与显示基板相对设置的公共电极层。
在该显示装置中,保护层的凸起部与反射层的厚度之和为对应着透射区的显示基板与公共电极层相对的表面之间的距离的一半。
该显示装置可以为:液晶面板、电子纸、手机、平板电脑、电视机、显示装置、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。
该显示装置具有较佳的色彩和亮度,具有良好的显示效果。
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 (10)

1.一种显示基板,包括多个像素区以及设置于所述像素区的薄膜晶体管,每一所述像素区划分为透射区和反射区,其特征在于,所述薄膜晶体管的上方设置有保护层,所述保护层在对应着所述反射区的区域设置为凸起部,对应着所述薄膜晶体管的区域开设有过孔。
2.根据权利要求1所述的显示基板,其特征在于,所述凸起部的上方还设置有色阻层,所述色阻层还延伸至所述透射区,且所述色阻层对应着所述透射区的厚度为对应着所述反射区的厚度的两倍。
3.根据权利要求2所述的显示基板,其特征在于,对应着所述保护层的凸起部和所述色阻层之间还设置有反射层。
4.根据权利要求1所述的显示基板,其特征在于,所述色阻层的上方还设置有像素电极层,所述像素电极层与所述薄膜晶体管的漏极通过开设于所述保护层中的所述过孔电连接。
5.根据权利要求1-4任一项所述的显示基板,其特征在于,所述保护层采用氮化硅材料或氧化硅材料形成。
6.根据权利要求2-4任一项所述的显示基板,其特征在于,该所述显示基板中每四个像素区形成一个像素单元,每一所述像素单元包括红色子像素、绿色子像素、蓝色子像素和白色子像素,红色子像素中的所述色阻层为红色,绿色子像素中的所述色阻层为绿色,蓝色子像素中的所述色阻层为蓝色。
7.一种显示基板的制备方法,该显示基板包括多个像素区以及设置于所述像素区的薄膜晶体管,每一所述像素区划分为透射区和反射区,其特征在于,该制备方法包括:采用一次构图工艺在所述薄膜晶体管的上方形成保护层,所述保护层在对应着所述反射区的区域形成凸起部,对应着所述薄膜晶体管的区域形成过孔。
8.根据权利要求7所述的显示基板的制备方法,其特征在于,所述保护层采用多色调曝光工艺形成,其中:对应着形成所述凸起部的区域为不透光区,对应着形成所述过孔的区域为全透光区,其他区域为半透光区。
9.一种显示装置,其特征在于,包括权利要求1-6任一项所述的显示基板以及与所述显示基板相对设置的公共电极层。
10.根据权利要求9所述的显示装置,其特征在于,所述保护层的凸起部与所述反射层的厚度之和为对应着透射区的所述显示基板与所述公共电极层相对的表面之间的距离的一半。
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