Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal
Reexamination Certificate
2006-05-18
2011-11-08
Vu, David (Department: 2818)
Liquid crystal cells, elements and systems
Particular excitation of liquid crystal
Electrical excitation of liquid crystal
C257S059000, C438S028000, C349S042000, C349S043000, C349S044000, C349S045000, C349S047000, C349S048000
Reexamination Certificate
active
08054397
ABSTRACT:
It is an object of the present invention to provide a display device that has a structure of an electrode where a residue of a transparent conductive film is not generated when a weak acid solution is used in etching, which is particularly appropriate for an electrode of a light-emitting element.A display device according to the present invention has an electrode that has a laminated structure of laminated transparent conductive films, and the electrode has a first transparent conductive film as the bottom layer, where no residue is generated when a weak acid solution is used in etching, and a second transparent conductive film as the top layer, which has a work function of 5.0 eV or more.
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Akimoto Kengo
Eguchi Shingo
Miyagi Noriko
Costellia Jeffrey L.
Fox Brandon
Nixon & Peabody LLP
Semiconductor Energy Laboratory Co,. Ltd.
Vu David
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