发明申请
- 专利标题: DISPLAY DEVICE
- 专利标题(中): 显示设备
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申请号: US12556695申请日: 2009-09-10
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公开(公告)号: US20100072470A1公开(公告)日: 2010-03-25
- 发明人: Shunpei Yamazaki , Kengo Akimoto , Shigeki Komori , Hideki Uochi , Tomoya Futamura , Takahiro Kasahara
- 申请人: Shunpei Yamazaki , Kengo Akimoto , Shigeki Komori , Hideki Uochi , Tomoya Futamura , Takahiro Kasahara
- 申请人地址: JP Kanagawa-ken
- 专利权人: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
- 当前专利权人: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
- 当前专利权人地址: JP Kanagawa-ken
- 优先权: JP2008-241743 20080919
- 主分类号: H01L33/00
- IPC分类号: H01L33/00
摘要:
A protective circuit includes a non-linear element which includes a gate electrode, a gate insulating layer covering the gate electrode, a first oxide semiconductor layer overlapping with the gate electrode over the gate insulating layer, a channel protective layer overlapping with a channel formation region of the first oxide semiconductor layer, and a pair of a first wiring layer and a second wiring layer whose end portions overlap with the gate electrode over the channel protective layer and in which a conductive layer and a second oxide semiconductor layer are stacked. Over the gate insulating layer, oxide semiconductor layers with different properties are bonded to each other, whereby stable operation can be performed as compared with Schottky junction. Thus, the junction leakage can be reduced and the characteristics of the non-linear element can be improved.
公开/授权文献
- US09048320B2 Display device including oxide semiconductor layer 公开/授权日:2015-06-02