Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2008-11-10
2011-11-15
Garrett, Dawn (Department: 1786)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S917000, C313S504000, C313S506000, C548S433000
Reexamination Certificate
active
08057920
ABSTRACT:
Provided is a heterocyclic compound represented by Formula I:wherein Ar1is a linking group and a C6-C16 arylene or heteroarylene group; Ar2and Ar3are each independently a C6-C20 aryl group, a C4-C20 heteroaryl group or a C6-C20 fused polycyclic group; Ar4is a C6-C20 aryl group, a C6-C20 aryloxy group, a C4-C20 heteroaryl group or a C6-C20 fused polycyclic group; and Ar1and Ar3, or Ar2and Ar3may be connected to each other to form a ring. The heterocyclic compound has high electrical stability and excellent charge transporting capability, and thus can be efficiently used as a material for forming at least one of a hole injecting layer, a hole transporting layer and an emitting layer suitable for fluorescent and phosphorescent devices realizing all colors including red, green, blue and white.
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Hwang Seok-Hwan
Kim Young-Kook
Ko Hee-Joo
Kwak Yoon-Hyun
Bushnell , Esq. Robert E.
Garrett Dawn
Samsung Mobile Display Co., Ltd.
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