Patent · US Expired

Electroluminescent panel and a manufacturing method therefor

US7150669B2 · kind B2 · utility

3Cited by
25References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 5, 2003
Grant dateDec 19, 2006
Priority date
Expiry dateApr 4, 2023

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10D30/6739

Abstract

A second planarization insulating layer disposed under an organic EL layer is heat-treated so as to bring the moisture content thereof to an extremely low level. By lowering this moisture content to 77 ng/cm3 or below, an organic EL panel can be realized where the degradation of luminescence characteristics is minimized. As an alternative method of reducing the adverse effect of moisture content on the organic EL layer, a reforming processing or coating processing may be performed on the second planarization insulating layer.

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