Method for forming a multicolor OLED device
US8871545B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 27, 2011 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Oct 24, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/35
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method is provided for forming a multi-color OLED device that includes providing a substrate, coating the substrate with a fluorinated photoresist solution to form a first photo-patternable layer and exposing it to produce a first pattern of exposed fluorinated photoresist material and a second pattern of unexposed fluorinated photoresist material, developing the photo-patternable layer with a fluorinated solvent to remove the second pattern of unexposed fluorinated photoresist material without removing the first pattern of exposed fluorinated photoresist material, depositing a first organic light-emitting material over the substrate to form a first organic light-emitting layer for emitting a first color of light and applying the first pattern of exposed fluorinated photoresist material to control the removal of a portion of the first organic light-emitting layer. A second fluorinated photoresist solution is then coated over the first patterened organic light-emitting layer and exposed to form a third pattern of exposed fluorinated photoresist material having a pattern different from the first pattern and a fourth pattern of unexposed fluorinated photoresist material, and develop…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.