CN108446051A - 阵列基板及触控显示装置 - Google Patents

阵列基板及触控显示装置 Download PDF

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CN108446051A
CN108446051A CN201810220937.8A CN201810220937A CN108446051A CN 108446051 A CN108446051 A CN 108446051A CN 201810220937 A CN201810220937 A CN 201810220937A CN 108446051 A CN108446051 A CN 108446051A
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张源
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TCL Huaxing Photoelectric Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Abstract

本发明提供一种阵列基板及触控显示装置。所述阵列基板包括阵列排布的多个子像素单元、多条触控感测线及多条直流电源线；对应每一列子像素单元设置一条触控感测线，对应每一行子像素单元设置一条直流电源线，每一个子像素单元均包括光敏型薄膜晶体管，所述光敏型薄膜晶体管的栅极浮置，源极电性连接该子像素单元所在行对应的直流电源线，漏极电性连接该子像素单元所在列对应的触控感测线，所述光敏型薄膜晶体管在被生物触摸时能够吸收生物发出的红外辐射，进而实现导通，将直流电源线上的电压传输到触控感测线中，完成触控感测，将触控功能集成到子像素单元中，无需额外设置触控面板，能够降低生产成本，防止误操作。

Description

阵列基板及触控显示装置
技术领域
本发明涉及显示技术领域，尤其涉及一种阵列基板及触控显示装置。
背景技术
随着显示技术的发展，液晶显示器(Liquid Crystal Display，LCD)等平面显示装置因具有高画质、省电、机身薄及应用范围广等优点，而被广泛的应用于手机、电视、个人数字助理、数字相机、笔记本电脑、台式计算机等各种消费性电子产品，成为显示装置中的主流。
触控面板(Touch panel)提供了一种新的人机互动界面，其在使用上更直接、更人性化。将触控面板与平面显示装置整合在一起，形成触控显示装置，能够使平面显示装置具有触控功能，可通过手指、触控笔等执行输入，操作更加直观、简便。
目前，液晶显示器及触控面板已经广泛地被人们所接受及使用，并且分别取代传统的阴极射线显像管和实体按键输入装置。最初的触控显示装置通常采用分离式触控屏，即将触控面板与液晶面板分开制造，然后通过组装的方式制作在一起。采用这种制造方案制得的触控显示装置比较厚，增加了较多的玻璃、薄膜，液晶面板的透光率与对比度也也会明显下降，而且由于分开制造，导致成本较高，市场竞争力下降。为了解决上述问题，提供一种更轻薄，有更好的显示效果且低成本的触控显示装置，嵌入式触控技术应运而生，所谓嵌入式触控技术是将触控面板和液晶面板结合为一体，并将触控面板功能嵌入到液晶面板内，使得液晶面板同时具备显示和感知触控输入的功能。
但无论是分离式触控屏还是嵌入式触控屏，都需要在显示区上设置基于电阻特性变化或电容特性变化来判断触摸区域的器件，生产成本较高，且上述器件在触控过程中无法识别是用户操作还是其他物体误触，容易出现误操作。
发明内容
本发明的目的在于提供一种阵列基板，将触控功能集成到子像素单元中，能够降低生产成本，防止误操作。
本发明的目的还在于提供一种触控显示装置，将触控功能集成到子像素单元中，能够降低生产成本，防止误操作。
为实现上述目的，本发明提供了一种阵列基板，包括阵列排布的多个子像素单元、多条触控感测线及多条直流电源线；
对应每一列子像素单元设置一条触控感测线，对应每一行子像素单元设置一条直流电源线，每一个子像素单元均包括光敏型薄膜晶体管，所述光敏型薄膜晶体管的栅极浮置，源极电性连接该子像素单元所在行对应的直流电源线，漏极电性连接该子像素单元所在列对应的触控感测线。
所述阵列基板还包括：多条数据线及多条扫描线，对应每一列子像素单元设置一条数据线，对应每一行子像素单元设置一条扫描线，每一个子像素单元还包括开关薄膜晶体管及像素电极，所述开关薄膜晶体管的栅极电性连接该子像素单元所在行对应的扫描线，源极电性连接该子像素单元所在列对应的数据线，漏极电性连接该子像素单元的像素电极。
所述光敏型薄膜晶体管的沟道材料为非晶硅。
所述光敏型薄膜晶体管为N型薄膜晶体管。
所述多条触控感测线电性连接触控感测芯片。
所述触控感测芯片集成于时序控制器中。
所述直流电源线、扫描线、光敏型薄膜晶体管的栅极及开关薄膜晶体管的栅极均位于第一金属层，所述触控感测线、数据线、光敏型薄膜晶体管的源极和漏极及开关薄膜晶体管的源极和漏极均位于第二金属层，所述第一金属层与第二金属层绝缘层叠。
所述第一金属层和第二金属层的材料均为钼、铝及铜中的一种或多种的组合。
所述像素电极的材料为氧化铟锡。
本发明还提供一种触控显示装置，包括上述的阵列基板。
本发明的有益效果：本发明提供一种阵列基板，包括阵列排布的多个子像素单元、多条触控感测线及多条直流电源线；对应每一列子像素单元设置一条触控感测线，对应每一行子像素单元设置一条直流电源线，每一个子像素单元均包括光敏型薄膜晶体管，所述光敏型薄膜晶体管的栅极浮置，源极电性连接该子像素单元所在行对应的直流电源线，漏极电性连接该子像素单元所在列对应的触控感测线，所述光敏型薄膜晶体管在被生物触摸时能够吸收生物发出的红外辐射，进而实现导通，将直流电源线上的电压传输到触控感测线中，完成触控感测，将触控功能集成到子像素单元中，无需额外设置触控面板，能够降低生产成本，防止误操作。本发明还提供一种触控显示装置，将触控功能集成到子像素单元中，能够降低生产成本，防止误操作。
附图说明
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图中，
图1为本发明的阵列基板的示意图；
图2为本发明的阵列基板中光敏型薄膜晶体管的结构示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图1，本发明提供一种阵列基板，包括阵列排布的多个子像素单元10、多条触控感测线20及多条直流电源线30；
其中，对应每一列子像素单元10设置一条触控感测线20，对应每一行子像素单元10设置一条直流电源线30，每一个子像素单元10均包括光敏型薄膜晶体管T1，所述光敏型薄膜晶体管T1的栅极浮置，源极电性连接该子像素单元10所在行对应的直流电源线30，漏极电性连接该子像素单元10所在列对应的触控感测线20。
具体实施时，完成触控操作识别还需要设置一与触控感测线20电性连接的触控感测芯片，用于根据触控感测线20接收到的电压识别触摸位置，具体地，所述触控感测芯片可以单独设置，也可以集成于用于控制显示时序的时序控制器中。
需要说明的是，所述光敏型薄膜晶体管在被生物触摸时，能够吸收生物发出的红外辐射，所述红外辐射激发所述光敏型薄膜晶体管的半导体层的电子，当所述半导体层中电子累计到一定程度后将导通所述光敏型薄膜晶体管的源极和漏极，从而将与所述源极电性连接的直流电源线30上的电压传输到触控感测线20上，触控感测线20再将该电压传输到触控感测芯片上，触控感测芯片接收到该电压后即可识别出生物触摸的位置，实现触控操作。
进一步地，所述红外辐射为生物体才有的特性，一般的非生物体不能发出红外辐射，也就无法触发所述光敏型薄膜晶体管导通，相比传统的电容式或电阻式的触控感测器件，通过光敏型薄膜晶体管进行触控感测能够有效避免误触发，且可直接集成到子像素单元10中，不需额外制作触控面板或独立的触控电路，能够降低生产成本，提升产品竞争力。
当然，为了实现正常的显示功能，本发明的阵列基板还包括：多条数据线40及多条扫描线50，对应每一列子像素单元10设置一条数据线40，对应每一行子像素单元10设置一条扫描线50，每一个子像素单元10还包括开关薄膜晶体管T2及像素电极60，所述开关薄膜晶体管T2的栅极电性连接该子像素单元10所在行对应的扫描线50，源极电性连接该子像素单元10所在列对应的数据线40，漏极电性连接该子像素单元10的像素电极60。
进一步地，如图2所示，典型的光敏型薄膜晶体管的结构如图2所示，包括基板101、设于基板101上的栅极102、覆盖所述栅极102和基板101的绝缘层103、位于所述绝缘层103上的半导体层104以及分别位于所述半导体层104上的两端且相互间隔的源极106和漏极107，同时在源极106与半导体层104之间以及漏极107与半导体层104之间均形成有掺杂层105，所述掺杂层105由所述半导体层104的材料通过离子掺杂得到。
优选地，所述半导体层104的材料为非晶硅(a-Si)，也即所述光敏型薄膜晶体管T1的沟道材料为非晶硅，所述掺杂层105中掺杂的离子为N型离子，即所述掺杂层105为N型掺杂的非晶硅，也即所述光敏型薄膜晶体管T1为N型薄膜晶体管。
具体制作时，可将所述直流电源线30、扫描线50、光敏型薄膜晶体管T1的栅极及开关薄膜晶体管T2的栅极设置于第一金属层，所述触控感测线20、数据线40、光敏型薄膜晶体管T1的源极和漏极及开关薄膜晶体管T2的源极和漏极设置于第二金属层，所述第一金属层与第二金属层绝缘层叠。
优选地，所述第一金属层和第二金属层的材料均为钼、铝及铜中的一种或多种的组合。所述像素电极60的材料为氧化铟锡。
本发明还提供一种触控显示装置，包括上述的阵列基板，所述触控显示装置进行触控感测的过程包括：生物在所述触控显示装置的子像素单元10上进行触摸，向所述光敏型薄膜晶体管T1发出红外辐射；所述子像素单元10中的光敏型薄膜晶体管T1吸收红外辐射后导通，将直流电源线30上的电压传输到触控感测线20中，实现触控感测。
综上所述，本发明提供一种阵列基板，包括阵列排布的多个子像素单元、多条触控感测线及多条直流电源线；对应每一列子像素单元设置一条触控感测线，对应每一行子像素单元设置一条直流电源线，每一个子像素单元均包括光敏型薄膜晶体管，所述光敏型薄膜晶体管的栅极浮置，源极电性连接该子像素单元所在行对应的直流电源线，漏极电性连接该子像素单元所在列对应的触控感测线，所述光敏型薄膜晶体管在被生物触摸时能够吸收生物发出的红外辐射，进而实现导通，将直流电源线上的电压传输到触控感测线中，完成触控感测，将触控功能集成到子像素单元中，无需额外设置触控面板，能够降低生产成本，防止误操作。本发明还提供一种触控显示装置，将触控功能集成到子像素单元中，能够降低生产成本，防止误操作。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (10)

1.一种阵列基板，其特征在于，包括阵列排布的多个子像素单元(10)、多条触控感测线(20)及多条直流电源线(30)；
对应每一列子像素单元(10)设置一条触控感测线(20)，对应每一行子像素单元(10)设置一条直流电源线(30)，每一个子像素单元(10)均包括光敏型薄膜晶体管(T1)，所述光敏型薄膜晶体管(T1)的栅极浮置，源极电性连接该子像素单元(10)所在行对应的直流电源线(30)，漏极电性连接该子像素单元(10)所在列对应的触控感测线(20)。
2.如权利要求1所述的阵列基板，其特征在于，还包括：多条数据线(40)及多条扫描线(50)，对应每一列子像素单元(10)设置一条数据线(40)，对应每一行子像素单元(10)设置一条扫描线(50)，每一个子像素单元(10)还包括开关薄膜晶体管(T2)及像素电极(60)，所述开关薄膜晶体管(T2)的栅极电性连接该子像素单元(10)所在行对应的扫描线(50)，源极电性连接该子像素单元(10)所在列对应的数据线(40)，漏极电性连接该子像素单元(10)的像素电极(60)。
3.如权利要求1所述的阵列基板，其特征在于，所述光敏型薄膜晶体管(T1)的沟道材料为非晶硅。
4.如权利要求1所述的阵列基板，其特征在于，所述光敏型薄膜晶体管(T1)为N型薄膜晶体管。
5.如权利要求1所述的阵列基板，其特征在于，所述多条触控感测线(20)电性连接触控感测芯片。
6.如权利要求5所述的阵列基板，其特征在于，所述触控感测芯片集成于时序控制器中。
7.如权利要求2所述的阵列基板，其特征在于，所述直流电源线(30)、扫描线(50)、光敏型薄膜晶体管(T1)的栅极及开关薄膜晶体管(T2)的栅极均位于第一金属层，所述触控感测线(20)、数据线(40)、光敏型薄膜晶体管(T1)的源极和漏极及开关薄膜晶体管(T2)的源极和漏极均位于第二金属层，所述第一金属层与第二金属层绝缘层叠。
8.如权利要求7所述的阵列基板，其特征在于，所述第一金属层和第二金属层的材料均为钼、铝及铜中的一种或多种的组合。
9.如权利要求2所述的阵列基板，其特征在于，所述像素电极(60)的材料为氧化铟锡。
10.一种触控显示装置，其特征在于，包括如权利要求1至9任一项所述的阵列基板。
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