Organic Light Emitting Devices and Materials Integrated with Active Matrix Backplanes for Flexible Displays

Abstract

The following paper details the development of a new phosphorescent emitting dopant molecule for organic light emitting diodes (OLEDs). A systematic series of heteroleptic tris-cyclometallated iridium compounds were fabricated. Of the molecules, the fac- Ir(dfppy)(dfppz)2 compound had the blue-est emission with the highest quantum efficiency. Phosphorescent emitting OLEDs (PhOLED) were fabricated and properties measured. The emitting dopant was integrated into a device structure and the properties measured as a function of doping concentration. The device efficiency is 20 lm/W at 100 cd/m2 and a peak emission of 498 nm. The Army's Flexible Display Center (FDC) has fabricated thin film transistors on a rigid opaque substrate that make up an active matrix (AM) backplane. ARL's OLEDs are being integrated with the AM backplanes to demonstrate high performance emissive test demonstrator displays with a 1.1" diag.

Document Details

• Document Type: Technical Report
• Publication Date: Nov 01, 2006
• Accession Number: ADA481895

Entities

People

• D. C. Morton
• D. Chiu
• E. W. Forsythe
• G. Raupp
• H. Girolamo
• Jin‐Wei Shi
• K. Dedeian
• N. Colanari
• S. Blomquist

Organizations

• United States Army Research Laboratory

Tags

Communities of Interest

• Advanced Electronics
• Energy and Power Technologies
• Sensors

DTIC Thesaurus Topics

• Current Density
• Efficiency
• Elements
• Emission
• Intellectual Property
• Iridium
• Iridium Compounds
• Light Emitting Diodes
• Liquid Crystal Displays
• Liquid Crystals
• Low Resolution
• Luminance
• Materials
• Optoelectronic Devices
• Organic Light Emitting Diodes
• Thin Film Transistors
• Thin Films

Fields of Study

• Materials science

Readers

• Human-Computer Interaction (HCI).
• Integrated Circuit Design and Technology.
• Solar Photovoltaics and Thermoelectric Devices.

Technology Areas

• Quantum Computing