ORGANIC LIGHT EMITTING DISPLAY DEVICE

摘要

PURPOSE: An organic electroluminescent display device is provided to transfer energy between a host and a dopant by using a light emitting layer comprised of two hosts and one fluorescent dopant. CONSTITUTION: A first electrode(119) is located on a substrate. An organic light emitting layer is located on the first electrode. A second electrode(122) is located on the organic light emitting layer. The organic light emitting layer includes a light emitting layer(121c) comprised of a first host, a second host, and one florescent dopant. The first and second hosts are made of organic materials.