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.

Date of Patent:
Jul. 19, 1994

Filed:

Dec. 29, 1992
Applicant:
Inventor:

Yoichi Murayama, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345 47 ; 313496 ;
Abstract

A chip-in-glass type vacuum fluorescent display device includes an integrated circuit chip for driving a display unit in a vacuum glass envelope. The integrated circuit chip is connected to plural number of external terminals to be supplied with an electric power from an external power supply, so that resistances of the external terminals themselves, and those of the connecting points of the external terminals and conductor patterns which connect the terminals to the integrated circuit chip. As a result, the potential change at pads of the integrated circuit chip, which causes unstableness in operation of the integrated circuit and changes of characteristics thereof, is decreased.


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