The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 2002
Filed:
Dec. 13, 1996
Fumiharu Yamazaki, Kanagawa-ken, JP;
Tomoyuki Okamura, Kanagawa-ken, JP;
Shin Fukuda, Kanagawa-ken, JP;
Nobuhiro Fukuda, Yamaguchi-ken, JP;
Mitsui Chemicals, Inc., , JP;
Abstract
A transparent conductive laminate in which a transparent conductive layer (an ITO film) mainly comprising indium, tin and oxygen is formed on one main surface of a transparent substrate such as a polymeric film and which is excellent in moist heat resistance and scuff resistance and which can be applied to various kinds of transparent electrodes. The transparent conductive layer has a stable amorphous structure, and its resistivity is 1×l0 &OHgr;·cm or less, and its electron mobility is 20 cm /(V·sec) or more. This transparent conductive laminate can be prepared by forming an amorphous film mainly comprising indium, tin and oxygen and having a resistivity of more than 1×10 &OHgr;·cm on the substrate by a sputtering process under a high oxygen concentration atmosphere, and then subjecting the film to a heat treatment in the range of 80 to 180° C. to decrease the resistivity to 1×10 &OHgr;·cm or less, while the amorphous structure is maintained. This transparent conductive laminate can suitably be utilized as the transparent electrode of an electroluminescence light-emitting element equipped with a layer containing zinc sulfide as a light-emitting layer, and in this case, the deterioration of luminance during continuous light emission can be remarkably inhibited.