Appeal 2007-0162
Application 10/690,940
1. A stabilized white-light-emitting OLED device, comprising:
a) an anode;
b) a cathode;
c) at least two light-emitting layers disposed between the anode and
the cathode; and
d) a stabilizing substituted perylene material having a concentration
selected so that it does not emit light to thereby increase the lifetime of the
white-light-emitting OLED device.
The Examiner relies upon the following references as evidence of
obviousness:
Codama US 6,091,196 Jul. 18, 2000
Toguchi US 6,753,097 B2 Jun. 22, 2004
Appellants' claimed invention is directed to a stabilized white-light-
emitting OLED device comprising an anode, a cathode and at least two
light-emitting layers disposed between the anode and cathode. In addition,
one of the layers of the device comprising a substituted perylene material
having a concentration such that it does not emit light and thereby increases
the lifetime of the OLED device.
Appealed claims 1-4 stand rejected under 35 U.S.C. § 112, first
paragraph, description requirement. Claims 1, 5, 13, and 17-19 stand
rejected under 35 U.S.C. § 103(a) as being unpatentable over Codama.
Claims 2-4, 6-8, and 20 stand rejected under 35 U.S.C. § 103(a) as being
unpatentable over Codama in view of Toguchi.
We have thoroughly reviewed the respective positions advanced by
the Appellants and the Examiner. In so doing, we will sustain the
Examiner's rejection under § 112, first paragraph. However, we agree with
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