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    • 4. 发明授权
    • Electronic device, display device and production method thereof
    • 电子装置,显示装置及其制造方法
    • US07224032B2
    • 2007-05-29
    • US11049235
    • 2005-02-03
    • Ichiro ShirakiMutsumi NakajimaKeisuke YoshidaShoichi AndouMasayuki Inoue
    • Ichiro ShirakiMutsumi NakajimaKeisuke YoshidaShoichi AndouMasayuki Inoue
    • H01L27/01
    • G02F1/136259G02F2001/136268H01L27/12H01L27/124H01L27/1248
    • 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.
    • 本发明的显示装置包括:源极线; 像素电极; 用于切换源极线和像素电极之间的电连接的第一TFT; 和第二TFT作为备用。 第二TFT包括半导体膜和栅电极。 半导体膜包括源电极和漏电极。 栅电极设置在半导体膜上,其间插入有栅极绝缘膜。 显示装置包括在第二TFT的源极线和半导体膜之间的层间绝缘膜。 层间绝缘膜比栅极绝缘膜厚。 当第一TFT不可用时,在层间绝缘膜中形成接触孔,使得源极线电连接到源电极,由此源极线和像素电极之间的电连接可被第二TFT切换。