To solve the problem that as the number of pixels is increased with an increase in the definition of a display device and thus the numbers of gate lines and signal lines are increased, it becomes difficult to mount an IC chip having a driver circuit for driving the gate line and the signal line by bonding or the like to cause an increase in manufacturing costs.
A pixel portion and a driver circuit driving the pixel portion are provided on the same substrate. A thin film transistor in which an oxide semiconductor is used is used for the pixel portion, and at least a part of the driver circuit is formed using a thin film transistor in which an oxide semiconductor is used. Both the pixel portion and the driver circuit are provided on the same substrate, whereby manufacturing costs are reduced.
WO/2019/064744 | DISPLAY DEVICE |
WO/2011/108199 | METHOD FOR MANUFACTURING THIN FILM TRANSISTOR, THIN FILM TRANSISTOR MANUFACTURED BY THE METHOD, AND ACTIVE MATRIX SUBSTRATE |
JP2017098585 | SEMICONDUCTOR DEVICE |
AKIMOTO KENGO
UMEZAKI ATSUSHI
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