Appeal No. 2000-0747
Application No. 08/872,657
cathode layer has an ultra-thin layer of alkaline earth metal having a thickness of about 15
to about 100 D.
The independent claim 1 is reproduced as follows:
1. A polymer light-emitting diode comprising:
(a) a transparent hole-injecting anode layer;
(b) an emissive layer comprising an electroluminescent polymer; and
(c) an electron-injecting cathode layer;
wherein said cathode layer comprises an ultra-thin layer of alkaline earth
metal having a thickness of from about 30 to about 60 D.
The Examiner relies upon the following references:
Staring 5,705,888 Jan. 06, 1998
Biebuyck et al. (Biebuyck) 5,734,225 Mar. 31, 1998
Utsugi 5,747,930 May 05, 1998
Claims 1, 3, 5, 7, 9, 10, 12, 14, 16, 18 through 20, 22 through 24, 26 through 46, 48
through 55, 57 through 64, 66 through 92, 75 through 82 and 84 through 91 stand rejected
under 35 U.S.C. § 103 as being unpatentable over Staring in view of Utsugi.
Claims 21, 25, 38, 47, 56, 65, 74, 83 and 92 stand rejected under 35 U.S.C.
§ 103 as being unpatentable over Staring in view of Utsugi and further in view of Biebuyck.
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