Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2006-01-31
2006-01-31
Yamnitzky, Marie (Department: 1774)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S917000, C313S504000, C313S506000, C257S102000, C252S301160, C546S081000, C546S110000, C546S122000, C546S183000
Reexamination Certificate
active
06991858
ABSTRACT:
The present invention relates to a blue light-emitting compound for organic polymer EL devices and organic EL devices having superior color purity and light-emitting efficiency by providing a blue light-emitting compound for organic EL devices represented by Chemical Formula 1 and an organic EL device using the blue light-emitting compound:wherein R1 to R8 each independently represents a functional group selected from the group consisting of hydrogen alkyl groups, alkoxy groups, carbon rings, aryl groups, hetero rings and fused aromatic compounds having from 1 to 30 carbon atoms; to of R1 to R3 may additionally be connected by a ring; and two of R4 to R8 may additionally be connected by a ring.
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Ferrarini et al., “Synthesis and beta-blocking activity of (R,S)-(E)-oximeethers of 2,3-dihydro-1,8-naphthyridine . . . Part IX”, Eur. J. Med. Chem. 35 (2000), pp. 815-826, no month.
C.W. Tang, et al., “Organic electroluminescent diodes” Appl. Phys. Lett. 51 (12), Sep. 21, 1987, pp 913-915.
Tetsuo Tsutsui, et al., “Significance of multilayer structures in organic thin-film electroluminescent devices” SPIE vol. 1910, pp 180-189, 1993, no month.
Choi Kyung Sun
Hong Jong In
Ju Sang Hyun
Jung Dong Hyun
Kwon Jang Hyuk
Christie Parker & Hale LLP
Samsung SDI & Co., Ltd.
Yamnitzky Marie
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