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:
Nov. 26, 1996
Filed:
Apr. 03, 1995
Applicant:
Inventor:
Makoto Kondo, Tokyo, JP;
Assignee:
NEC Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L / ;
U.S. Cl.
CPC ...
7386268 ; 310339 ;
Abstract
A force detector/indicator is disclosed which is provided with a piezoelectric plate that generates voltage when subjected to operation force or pressure, and a liquid crystal display (LCD) having a threshold value sufficiently lower than the generated voltage of the piezoelectric plate, the piezoelectric plate and the liquid crystal display being electrically connected such that generated voltage from the piezoelectric plate acts as an input signal to turn on the display of the liquid crystal display. In addition, a high-resistance conductor for discharge is provided between the two electrode lines making up a circuit connecting the piezoelectric plate and liquid crystal display.