发明申请
- 专利标题： Electronic device, display device and production method thereof
- 专利标题（中）： 电子装置，显示装置及其制造方法
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申请号： US11049235申请日： 2005-02-03
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公开(公告)号： US20050173707A1公开(公告)日： 2005-08-11
- 发明人: Ichiro Shiraki , Mutsumi Nakajima , Keisuke Yoshida , Shoichi Andou , Masayuki Inoue
- 申请人： Ichiro Shiraki , Mutsumi Nakajima , Keisuke Yoshida , Shoichi Andou , Masayuki Inoue
- 专利权人： Sharp Kabushiki Kaisha
- 当前专利权人： Sharp Kabushiki Kaisha
- 优先权： JP2004-029375 20040205; JP2004-377220 20041227
- 主分类号： G02F1/1368
- IPC分类号： G02F1/1368 ; G02F1/1343 ; G02F1/136 ; G02F1/1362 ; G09F9/00 ; G09F9/30 ; H01L21/00 ; H01L21/77 ; H01L21/84 ; H01L27/12 ; H01L29/04 ; H01L29/786
摘要：
A display device of the present invention comprises: a source line; a pixel electrode; a first TFT for switching an electrical connection between the source line and the pixel electrode; and a second TFT as a spare. The second TFT includes a semiconductor film and a gate electrode. The semiconductor film includes a source electrode and a drain electrode. The gate electrode is provided on the semiconductor film with a gate insulation film interposed therebetween. The display device includes an interlayer insulation film between the source line and the semiconductor film of the second TFT. The interlayer insulation film is thicker than the gate insulation film. When the first TFT is unusable, a contact hole is formed in the interlayer insulation film such that the source line is electrically connected to the source electrode, whereby the electrical connection between the source line and the pixel electrode is rendered switchable by the second TFT.
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