公开(公告)号：US20150380563A1

公开(公告)日：2015-12-31

申请号：US14551886

申请日：2014-11-24

Applicant: Samsung Display Co., Ltd.

Inventor： Jun-Hyun Park ,  Yoon-Ho Kim ,  Hyeon-Jun Lee ,  Kang-Moon Jo ,  Chong-Chul Chai

IPC: H01L29/786 ,  H01L27/12 ,  G09G3/36

CPC classification number: H01L29/78606 ,  G09G3/3611 ,  G09G3/3677 ,  G09G3/3696 ,  G09G2300/0426 ,  G09G2310/0286 ,  H01L27/1222 ,  H01L27/1225 ,  H01L27/1233 ,  H01L27/1251 ,  H01L27/1259 ,  H01L27/127 ,  H01L29/78696

Abstract: A display apparatus is disclosed. The display apparatus includes a display panel and a gate driving circuit. The display panel includes a base substrate and a switching transistor. The base substrate includes a display area displaying an image and a peripheral area surrounding the display area. The switching transistor includes a first gate electrode disposed on the display area, a first channel disposed on the first gate electrode, and a first source electrode and a first drain electrode being spaced apart from each other with respect to the first channel. The gate driving circuit includes a driving transistor integrated on the peripheral area of the display panel applying gate signals to the display panel. The driving transistor includes a second gate electrode disposed on the peripheral area, a second channel disposed on the second gate electrode, and a second source electrode and a second drain electrode being spaced apart from each other with respect to the second channel, wherein the second channel includes a first active layer and a second active layer disposed on the first active layer, and a thickness of the second channel is greater than a thickness of the first channel, improving reliability and lifetime of the display apparatus.

Abstract translation: 公开了一种显示装置。 显示装置包括显示面板和门驱动电路。 显示面板包括基底基板和开关晶体管。 基底基板包括显示图像的显示区域和围绕显示区域的周边区域。 开关晶体管包括设置在显示区域上的第一栅极电极，设置在第一栅电极上的第一沟道，以及相对于第一沟道彼此间隔开的第一源电极和第一漏电极。 栅极驱动电路包括集成在显示面板的外围区域上的驱动晶体管，将显示面板施加栅极信号。 所述驱动晶体管包括设置在所述外围区域上的第二栅极电极，设置在所述第二栅电极上的第二沟道，以及相对于所述第二沟道彼此间隔开的第二源电极和第二漏电极， 通道包括设置在第一有源层上的第一有源层和第二有源层，并且第二沟道的厚度大于第一沟道的厚度，从而提高显示装置的可靠性和寿命。