OLED (organic light-emitting diode) lighting is expected to be new generation electric
power saving solid state lighting friendly to human beings and the environment, and has attained a
long lifetime superior to fluorescent lamps. Despite being in need of further improvement of
luminous efficacy, it is expected to become a light source that has features including thinness, light
weight, and eye-friendliness due to surface light emission, allowing for new lighting space design
to fulfill various needs.This paper describes its present development progress, issues and future
direction, focusing on efficiency improvement, and reports on the development of an OLED
lighting panel with high luminous efficacy (40 lm/W) and a long lifetime (40,000 hours) that has
attained a sufficient variety of products.
