Mitsubishi Chemical Corp and Pioneer Corp announced that they have made a white light-emitting OLED device whose luminescent layer is formed with a coating process.
Its luminous efficiency is as high as 52lm/W, and its luminous half-life is as long as 20,000 hours (initial luminance: 1,000cd/m2). Pioneer and Mitsubishi want to commercialize OLED lamps in 2014.
In July 2011 Mitsubishi shows off Velve a OLED light source module the company used a coating process only for its foundation layer.
Its luminous efficiency is 28lm/W, and Tohoku Pioneer Corp will mass-produce it.
Source
