Method for transferring of organic material from a donor to form a layer in an OLED device
US6688365B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2001 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | May 13, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1705
Abstract
A method for transferring organic material from a flexible donor element onto a substrate to form a layer of organic material in making one or more OLED devices, includes providing the flexible donor element and the substrate in a spaced relationship within a chamber under atmospheric pressure defined by a transfer station so that the flexible donor element partitions the chamber into first and second cavities; varying the pressure differential between the first and second cavities to cause the flexible donor element to move into a contact relationship with the substrate; providing a transparent window which defines the top surface of the second cavity; and providing radiation energy through the transparent window onto the flexible donor element in contact with the substrate to cause the flexible donor element to absorb heat and transfer organic material onto the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.