Using fiducial marks on a substrate for laser transfer of organic material from a donor to a substrate
US6811938B2 · kind B2 · utility
24Cited by
11References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2002 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Mar 1, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/649
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of aligning a substrate for use in manufacture of OLED displays with a laser which produces a beam that causes the transfer of organic material from a donor element to the substrate, including providing at least one fiducial mark on the substrate; positioning the substrate relative to the laser and providing relative movement between the substrate and the laser and the laser beam until the laser beam impinges upon the fiducial mark; and detecting when the laser beam impinges upon the fiducial mark and determining the position and orientation of the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.