P‐154L: Late‐News Poster: High‐efficacy OLED Panel with High‐mobility Electron Transport Layers for New Lighting Applications

Abstract

A 70 mm x 80 mm OLED lighting panel with efficacy of 78.6 lm/W at 1000 cd/m has been demonstrated. We improved the efficacy of the panel by decreasing driving voltage. We adopted two approaches: optimize device structure by using high-mobility electron transport layers and improve luminous uniformity by embedding metal bus lines. 2

Low‐Driving‐Voltage Blue Phosphorescent Organic Light‐Emitting Devices with External Quantum Efficiency of 30%

“…These fascinating features can open up a new world of artificial lighting. The panel efficiency of white OLEDs has just reached 110 lm W −1 at 1000 cd m ­–2 , which thereby exceeds the performance of a fluorescent tube . Although the performance of OLED panels has been improved, there is still much room (nearly 140 lm W −1 ) for improvement in power efficiency ( η p ), when the theoretical limit of 248 lm W −1 is considered.…”

Recent Progress in Phosphorescent Organic Light‐Emitting Devices

“…[13,14] Researchers at Panasonic have also achieved tandem white OLEDs with extremely long lifetimes of over 100000 h at 1000 cd m -2 . [13,14] Researchers at Panasonic have also achieved tandem white OLEDs with extremely long lifetimes of over 100000 h at 1000 cd m -2 .…”

52.4L Transmissive One‐Side‐Emission OLED Panel using Alignment‐Free Cathode Patterning

“…Organic light-emitting diodes (OLEDs) have made remarkable progress in lighting applications [1][2][3][4]. OLEDs have several advantages such as surface light emission, thin thickness, flexibility and transparency [5][6][7][8].…”