Circuit board and display device
US8575620B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2011 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Jan 25, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D86/423
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a circuit board with a reduced circuit area, and a display device comprising the circuit board and a narrower picture frame. The circuit board of the present invention comprises: a bottom gate thin film transistor comprising a first semiconductor layer, a first gate electrode, a first source electrode, and a first drain electrode; and a top gate thin film transistor comprising a second semiconductor layer, a second gate electrode, a second source electrode, and a second drain electrode, wherein the first semiconductor layer and the second semiconductor layer are formed from the same material, and the first drain electrode or the first source electrode and the second gate electrode are connected without interposing any other thin film transistor therebetween, and have the same electric potential.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.