Fully-printed carbon nanotube thin film transistor backplanes for active matrix organic light emitting devices and liquid crystal displays
US8940562B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 21, 2014 |
| Grant date | Jan 27, 2015 |
| Priority date | — |
| Expiry date | Jul 21, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/938
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
The present disclosure provides the ability to produce backplanes for AMLCD and AMOLED. Specifically, each and every component of the backplanes can be printed. Depending on the resolution and screen size of the displays, backplanes can include over a million different components that must be printed that include components of the thin film transistor (TFT) and electrodes to address each of those TFTs. Even a slight misregistry of components during printing can lead to failure of one or more pixels, potentially rendering the entire display unsuitable for use. The present disclosure provides the ability to reproducibly and accurately print each and every component of the backplane for both AMLCD and AMOLED. The ability to completely print backplanes provides numerous advantages, such as reduced costs, improved throughput, more environmental friendliness, and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.