4,4′-Bis(carbazol-9-yl)-biphenyl based silicone...

Stock material or miscellaneous articles – Composite – Of inorganic material

Reexamination Certificate

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C428S917000, C313S504000, C313S506000, C257S040000, C257SE51046, C257SE51050, C548S440000, C556S413000, C556S465000, C562S899000

Reexamination Certificate

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07413817

ABSTRACT:
A 4,4′-Bis(carbazol-9-yl)-biphenyl (CBP) based silicone compound and an organic electroluminescent device using the CBP based silicon compound have excellent blue light emission characteristics and hole transfer capability. The CBP based silicon compound may be used as a blue light emission material or as a host material for various phosphorescent or fluorescent dopants emitting red, green, blue, or white light. Therefore, the organic electroluminescent device using the CBP based silicon compound has excellent characteristics such as a high efficiency, a high luminance, a long life span, and a low power consumption.

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