NEC Develops World's Highest for a White OLED Lighting Device

NEC Lighting Ltd has developed a white OLED device whose luminous efficiency is 156lm/W in its booth at Lighting Fair 2013 from March 3 to 8, 2013, in Tokyo.

The device was developed in collaboration with a research group led by Junji Kido, professor at Yamagata University. The luminous efficiency of 156lm/W is the world's highest for a white OLED lighting device.

When the light emitting area and brightness of the device are 2 x 2mm and 1,000cd/m2, respectively, its luminous efficiency is 156lm/W. NEC Lighting made a panel by using light-emitting materials developed in the Kido Lab of Yamagata University.

Though NEC Lighting did not disclose the details of the materials or the structure of the light-emitting layer, it said that it aimed to beat the efficiency of 142lm/W that Panasonic Corp announced in 2012. Panasonic used a semispherical light-emitting layer for the device having the efficiency, and the new device developed by NEC Lighting seems to use a similar method.

This time, NEC Lighting did not exhibit an OLED device having a luminous efficiency of 156lm/W. But it showed a panel that was made by using the same technology and had a brightness of 1,000cd/m2, a luminous efficiency of 75lm/W and a color temperature of 2,800-3,000K.

Disclaimers of Warranties
1. The website does not warrant the following:
1.1 The services from the website meets your requirement;
1.2 The accuracy, completeness, or timeliness of the service;
1.3 The accuracy, reliability of conclusions drawn from using the service;
1.4 The accuracy, completeness, or timeliness, or security of any information that you download from the website
2. The services provided by the website is intended for your reference only. The website shall be not be responsible for investment decisions, damages, or other losses resulting from use of the website or the information contained therein<

Proprietary Rights
You may not reproduce, modify, create derivative works from, display, perform, publish, distribute, disseminate, broadcast or circulate to any third party, any materials contained on the services without the express prior written consent of the website or its legal owner.