Radiation-sensitive composition, insulating film and organic EL display element
US6797450B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2002 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Jul 30, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K50/844
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
According to the present invention, there are provided an insulating film for an organic EL element, which has sufficiently low water permeability and a good sectional form and whose reactivity with a basic material and an electrode made from a metal having a low work function is suppressed, an insulating film for an organic EL element, which enables the formation of a through hole or U-shaped cavity therein and has excellent flattening performance, high transparency and high resistance to a resist stripper, and a radiation sensitive resin composition for forming the insulating film.An organic EL display element having this insulating film is free from an emission failure and has sufficiently long luminance half-life period and excellent reliability.The above composition comprises an alkali-soluble resin which may have an epoxy group and a 1,2-quinonediazide compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.