Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2008-08-21
2010-12-14
Yamnitzky, Marie R. (Department: 1786)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S001300, C428S917000, C313S504000, C313S506000, C349S033000, C349S186000, C257SE51050, C257SE51051
Reexamination Certificate
active
07851074
ABSTRACT:
The new organic electroluminescent display device has a carrier-transporting layer and/or an organic luminous layer composed of a nematic liquid crystal or a liquid crystal dispersing a carrier-transporting low-molecule therein. When the organic luminous layer is to be bestowed with faculty as a liquid crystal, it is made of a nematic liquid crystal. Both the carrier-transporting layer and the organic luminous layer may be bestowed with faculty as a liquid crystal. Since the liquid crystal is incorporated in the carrier-transporting layer and/or the organic luminous layer, the display device can be driven as a liquid crystal display device in a dark place by charging with a voltage lower than a light emission initiating potential. Of course, it is driven as an electroluminescent display device when it is charged with a voltage higher than the light emission initiating potential. Use of an electroluminescent liquid crystal as a organic luminous layer enables omission of a carrier-transporting layer.
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Kido Junji
Murayama Ryuji
Nakada Hitoshi
Tohma Teruo
Yuki Toshinao
Junji Kido
The Webb Law Firm
Tohoku Pioneer Corporation
Yamnitzky Marie R.
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