Semiconductor device and method for manufacturing the same
US8106400B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2009 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Apr 9, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D86/60
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, there occurs a problem that it is difficult to mount an IC chip including a driver circuit for driving the gate and signal lines by bonding or the like, whereby manufacturing cost is increased. 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. The pixel portion and the driver portion are provided over the same substrate, whereby manufacturing cost can be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.