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    • 95. 发明公开
    • A thin film transistor and manufacturing method thereof, an array substrate and a display device
    • Dünnschichttransistorund Herstellungsverfahrendafür,ein Array-Substrat und eine Anzeigevorrichtung
    • EP2722891A1
    • 2014-04-23
    • EP13189461.0
    • 2013-10-21
    • Boe Technology Group Co. Ltd.
    • Liu, XiangWang, Gang
    • H01L29/423H01L29/49H01L27/12H01L29/786
    • H01L29/786H01L21/28008H01L27/124H01L29/42384H01L29/4908H01L29/66742H01L29/7869
    • Embodiments of the present invention provide a thin film transistor and its manufacturing method, an array substrate and a display device, to improve the electrical performance of the thin film transistor and improve the picture quality of images displayed by the display device. The thin film transistor includes: a substrate; a gate, a source, a drain and a semiconductor layer formed on the substrate; a first gate protection layer; a gate isolation layer; and a second gate protection layer. The first gate protection layer is at least partly located between the gate and the semiconductor layer, and is an insulating layer. The gate isolation layer is at least partly located between the first gate protection layer and the second gate protection layer, and is a conductive layer. The second gate protection layer is at least partly located between the gate isolation layer and the semiconductor layer, and is an insulating layer.
    • 本发明的实施例提供薄膜晶体管及其制造方法,阵列基板和显示装置,以改善薄膜晶体管的电气性能并提高由显示装置显示的图像的图像质量。 薄膜晶体管包括:基板; 形成在基板上的栅极,源极,漏极和半导体层; 第一栅极保护层; 栅极隔离层; 和第二栅极保护层。 第一栅极保护层至少部分地位于栅极和半导体层之间,并且是绝缘层。 栅极隔离层至少部分地位于第一栅极保护层和第二栅极保护层之间,并且是导电层。 第二栅极保护层至少部分地位于栅极隔离层和半导体层之间,并且是绝缘层。