Transfer of organic material from a donor to form a layer in an OLED device
US6703179B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 13, 2002 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Aug 13, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1705
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Method and apparatus are disclosed for transferring organic material from a donor onto a substrate to form a layer of organic material on one or more OLED devices, by aligning first and second fixtures in a reduced pressure environment and positioning the substrate and donor in a chamber defined by the aligned first and second fixtures; increasing the pressure applied to the non-transfer surface of the donor so as to ensure the position of the donor relative to the substrate; moving a member provided on the first fixture from a closed to an open position which permits the transmission of radiation onto the non-transfer surface of the donor so that heat will be produced and organic material transferred from the donor to the substrate; and illuminating with radiation the donor through the open radiation-receiving position to cause the transfer of organic material to the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.