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:
Apr. 27, 1999
Filed:
May. 28, 1997
Yoshihisa Tsuruoka, Mobara, JP;
Hisamitsu Takahashi, Mobara, JP;
Satoshi Tanaka, Mobara, JP;
Toshio Miyauchi, Mobara, JP;
Futaba Denshi Kogyo K.K., Mobara, JP;
Abstract
The voltage to be applied to fixed display segments are made to be substantially the same to prevent irregular luminance distribution so as to improve display quality. In consideration of allowable voltage drop occurring attributable to the levels of electric currents which flow in electric lines of fixed display segments, the same voltage is applied to the fixed display segments by determining the resistance values by changing the pattern shapes (the lengths, the widths, the thicknesses and the line) of electric lines of the fixed display segments. If the fixed display segments have the same display area, the widths of the electric lines of the fixed display segments are determined to correspond to the ratios of lengths of electric lines of the fixed display segments in order to cause the fixed display segments to be applied with the same voltage.