发明授权
- 专利标题: Electro-optical device and method for driving the same
- 专利标题(中): 电光装置及其驱动方法
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申请号: US09288140申请日: 1999-04-08
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公开(公告)号: US07489367B1公开(公告)日: 2009-02-10
- 发明人: Shunpei Yamazaki , Akira Mase , Masaaki Hiroki
- 申请人: Shunpei Yamazaki , Akira Mase , Masaaki Hiroki
- 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
- 代理机构: Robinson Intellectual Property Law Office, P.C.
- 代理商 Eric J. Robinson
- 优先权: JP3-87780 19910326
- 主分类号: G02F1/136
- IPC分类号: G02F1/136 ; H01I31/036
摘要:
A novel structure of an active display device is disclosed. The device is characterized as having at least one display device comprising a substrate having an insulated surface with at least one thin film transistor (TFT) formed over the substrate and a gate insulating film and gate electrode adjacent to the channel region, with the gate insulating layer interposed between the gate electrode and the channel region. In one embodiment, an interlayer insulating film covers the TFT and an aluminum lead electrode is formed over the interlayer insulating layer that is electrically connected to one of the source or drain regions of the TFT through a hole of the interlayer insulating film. In another embodiment of the invention the first and second holes of the interlayer insulating layer do not overlap. In a preferred embodiment, an organic resin film, with a pixel electrode form thereover, is formed over the thin film transistor, the interlayer insulating film and the lead electrode is provide a leveled upper surface. The pixel electrode is electrically connected to the TFT via the lead electrode. The present invention is applicable with any device with a display, such as a television or a personal computer.