Trilayer Polymer OLED Devices for Passive Matrix Applications
Publication Date: 2005-Jan-27
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A trilayer polymer OLED device has been developed by inserting a cross-linkable hole transporting layer (LUMATION* HT-12, * Trademark of The Dow Chemical Company) between the hole injection layer (HIL) and the light-emitting polymer layer (LEP). By using such a trilayer device structure, the charge balance is improved and there is a substantial enhancement in device efficiency and operating lifetime. Green OLED devices with The Dow Chemical Company LUMATION Green 1300 Series LEP have shown about 2X enhancement in efficiency and about 7X enhancement in lifetime.