Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2007-08-14
2007-08-14
Dye, Rena (Department: 1774)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S917000, C313S504000, C313S506000
Reexamination Certificate
active
10009021
ABSTRACT:
This invention provides an organic electroluminescent element which emits red light with high color purity, high luminance, and high reliability, owing to the compound used therein which has high fluorescence yields and good thermal stability. The organic electroluminescent element which is made up of a glass substrate (1), an ITO transparent electrode (2), a hole transfer layer (6), an electron transfer layer (7), and a metal electrode (3) (which are laminated in the order mentioned), with the hole transfer layer (6) and/or the electron transfer layer (7) being formed of a mixture containing at least one species of the aminostyryl compound represented by the following general formula [I], and a hole blocking layer (30) is interposed between the hole transfer layer (6) and the electron transfer layer (7).in-line-formulae description="In-line Formulae" end="lead"?Y1—CH═CH—X1—CH═CH—Y2General formula [I]in-line-formulae description="In-line Formulae" end="tail"?[where, in the general formula [I] above, X1denotes any aryl group such as a phenyl group having a substituent groups such as a nitro group, and Y1and Y2each is a group having an aminophenyl group in the skeleton.]
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Ichimura Mari
Ishibashi Tadashi
Tamura Shinichiro
Ueda Naoyuki
Dye Rena
Sonnenschein Nath & Rosenthal LLP
Thompson Camie S.
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