Light source using organic electroluminescent device

摘要

The present invention provides a light source including: a substrate, at least two or more linear organic electroluminescent devices arranged in parallel on the substrate; and a sealing member covering over the organic electroluminescent devices to seal them on the substrate; wherein the organic electroluminescent devices have an aspect ratio of 200 or more, and the sealing member has a length of 200 mm or more along the longitudinal direction of the organic electroluminescent devices and a thickness of 4 mm or more.