Organic light emitting devices having reduced pixel shrinkage
AssigneeUniversal Display Corporation
InventorsRaymond Kwong, Michael S. Weaver, Bin Ma, Jui-Yi Tsai, Michael Barone, David B. Knowles
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Abstract
The present invention relates to organic light emitting devices (OLEDs), and more specifically to efficient OLEDs comprising an array of pixels and having reduced pixel shrinkage. The devices of the present invention comprise further relates to materials for use as emissive materials which give reduced shrinkage when incorporated into an OLED.
Claims3
An organic light emitting device comprising an array of pixels defined by a photoresist grid and having a pixel pitch of less than 500 μm, wherein each pixel comprises an emissive layer comprising a phosphorescent emissive material of the formula
An organic light emitting device comprising an array of pixels defined by a photoresist grid and having a pixel pitch of less than 500 μm, wherein each pixel comprises an emissive layer comprising a phosphorescent emissive material of the formula
Dependencies are inferred from the claim text.