Monday, September 01, 2014
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Apple's iCloud Could Have Allowed Celebrity Nude-Photo Leak
Google To Launch New Budget Phone In India
Asus ZenWatch To Have Voice Control Features
Miraisens Showcases Touchable 3D Tech
Nintendo's Figurines Coming Later This Year
ASUS and G.Skill Take Overclocking Records
Korean Researchers Advance Synthesis Process for Graphene Quantum Dots
LG Display Opens LCD Panel Plant in China
Active Discussions
help questions structure DVDR
Made video, won't play back easily
Questions durability monitor LCD
Questions fungus CD/DVD Media, Some expert engineer in optical media can help me?
CD, DVD and Blu-ray burning for Android in development
IBM supercharges Power servers with graphics chips
Werner Vogels: four cloud computing trends for 2014
Video editing software.
 Home > News > Consumer Electronics > Panason...
Last 7 Days News : SU MO TU WE TH FR SA All News

Friday, May 24, 2013
Panasonic Develops High Efficiency White OLED for Lighting


Panasonic has developed a white Organic Light Emitting Diode (OLED) with "the world's highest luminous efficiency of 114 lm/W (light-emitting area of 1 cm²)," according to the company.

In addition, a luminous efficiency of 110 lm/W has also been achieved with a device with a larger emitting area of 25 cm². In order to achieve such a level of high efficiency with the OLED, the company focused on "light extraction technology" and the "all phosphorescent white OLED technology" (technology for the multilayering of the organic emitting layer).

OLEDs are capable of emitting any color including white when a voltage is applied by combining organic materials that emit various colors such as red, green, and blue. The soft surface luminescence makes OLEDs suitable for lighting a wide area, and along with the benefits of being not overly bright when viewed directly and a thin and lightweight structure, they are receiving attention as the next generation light source. Lighting devices equipped with the high efficiency OLEDs are considered to achieve a luminous efficiency comparable to or higher than that of fluorescent lamps (approx. 60-80 lm/W) or LED lighting fixtures (approx. 80 lm/W) currently available in the market.

Typically, the organic light emitting layers have higher refractive indices than those of a glass used for substrate and air, and only about 20% of the total generated light can be extracted because of the total internal reflection at interfaces. Although a variety of technologies have been developed, including a light extraction film attached onto the substrate and a light-scattering structure placed between organic layers and the substrate, the light extraction efficiency stayed below 40%.

Panasonic says that its new OLED has a light extraction efficiency of about 50%, while it also has a lifetime of over 100,000 hours.



These features have been achieved with the following technologies:

- Built-up Light Extraction Substrate (BLES) technology by the optimized arrangement of the film, glass and air for the suppression of light confinement in the OLED.
- Optimal design of stacked organic emitting layers with high-efficiency phosphorescent materials.

The development was conducted in the "Fundamental Technology Development of Next Generation Lighting of High-efficiency and High-quality" project since March 2010 under a contract with the New Energy and Industrial Technology Development Organization, with Idemitsu Kosan Co., Ltd, TAZMO CO., LTD., Choshu Industry Co., Ltd., Yamagata University, and Aoyama Gakuin University. The high-efficiency phosphorescent materials were provided by the Universal Display Corporation of the United States.


Previous
Next
Google To Bid For Waze: report        All News        Samsung and Corning May Be Seeking New Partnership: report
Panasonic, Toshiba Showcase High-resolution Flexible OLED Displays     Consumer Electronics News      Sharp To Launch New UD1 4K TV Series in Japan

Get RSS feed Easy Print E-Mail this Message

Related News
Panasonic and Tesla Sign Agreement for the Gigafactory
Panasonic Seeks To Sell Its Mobile Base Station Business to Nokia
Panasonic Updates Toughpad FZ-G1 10-inch Tablet
Intel To Manufacture Future Panasonic SoCs Using Intel's 14nm Low-Power Process
Panasonic Releases Its 2014 Life+Screen AX800 Series 4K Ultra HDTVs
Fujitsu Buys Shares of Panasonic Information Technology Solutions
Panasonic, Samsung Debut Devices For Connected Classrooms
Panasonic Toughpad Line Gets Smaller And Tougher with Rugged Handheld Tablets
Panasonic Weakens Its Research Team
New Panasonic Lumix DMC-FZ1000 Comes With Fast lens And 4K Recording Capability
Toyota, Panasonic Cloud Service Links Cars to Home Appliances
Panasonic to Recall PC Batteries

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2014 - All rights reserved -
Privacy policy - Contact Us .