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:
Mar. 13, 2007

Filed:

Feb. 08, 2002
Applicants:

Kazuhiko Mori, Saitama, JP;

Atsushi Hatayama, Saitama, JP;

Inventors:

Kazuhiko Mori, Saitama, JP;

Atsushi Hatayama, Saitama, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
Abstract

A vehicle-use liquid crystal display device which is capable of securing high visibility even under a low temperature environment without increasing or enlarging power consumption is provided. A display vehicle speed Ddis is switched according to a hysteresis of ±0.7 kilometer per hour as shown in FIG.() under a normal or high temperature environment of not less than 45° C. with respect to a change in a vehicle speed shown in FIG.(). Namely, even if the vehicle speed D changes between 51.4 kilometers and 52.6 kilometers, the display vehicle speed Ddis is held at 52 kilometers. The display vehicle speed Ddis is switched according to a hysteresis of ±1.0 kilometer per hour as shown in FIG.() under a low temperature environment of less than 45° C. Namely, even if the vehicle speed D changes between 51.1 kilometers and 52.9 kilometers, the display vehicle speed Ddis is held at 52 kilometers.


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