Title:
半導体装置
Document Type and Number:
Japanese Patent JP5498755
Kind Code:
B2
Abstract:
As a display device has a higher definition, the number of pixels, gate lines, and signal lines are increased. When the number of the gate lines and the signal lines are increased, a problem of higher manufacturing cost, because it is difficult to mount an IC chip including a driver circuit for driving of the gate and signal lines by bonding or the like. A pixel portion and a driver circuit for driving the pixel portion are provided over the same substrate, and at least part of the driver circuit includes a thin film transistor using an oxide semiconductor interposed between gate electrodes provided above and below the oxide semiconductor. Therefore, when the pixel portion and the driver portion are provided over the same substrate, manufacturing cost can be reduced.
Inventors:
Hidekazu Miyairi
Go Nagata
Shunpei Yamazaki
Go Nagata
Shunpei Yamazaki
Application Number:
JP2009243798A
Publication Date:
May 21, 2014
Filing Date:
October 22, 2009
Export Citation:
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
International Classes:
H01L29/786; H05B44/00
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