Patent · US Expired

Organic EL element and method of producing the same

US7038372B2 · kind B2 · utility

3Cited by
8References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 10, 2004
Grant dateMay 2, 2006
Priority date
Expiry dateJun 10, 2024

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10K85/649

Abstract

A first electrode is formed above a substrate, organic material layers are stacked above the first electrode, and a second electrode is formed above the organic material layers. Among the organic material layers, at least two organic material layers having interfaces which electrons or holes traverse are formed by layers which are heat-treated at a temperature that is equal to or higher than the glass transition points of materials respectively constituting the organic material layers and equal to or lower than the melting points of the materials.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.