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:
Dec. 20, 2011
Filed:
Mar. 15, 2007
Sinya Kondoh, Nishitokyo, JP;
Takashi Ihara, Nishitokyo, JP;
Sinya Kondoh, Nishitokyo, JP;
Takashi Ihara, Nishitokyo, JP;
Citizen Holdings Co., Ltd., Tokyo, JP;
Abstract
There is provided a liquid crystal comprising a liquid crystal panel with a memory effect () sandwiching liquid crystals of a memory effect, a driving circuit () outputs driving voltage for driving the liquid crystal panel with a memory effect () and a temperature sensor for detecting an ambient temperature, wherein the driving circuit () includes a control circuit () for varying a driving voltage. The control circuit has a first temperature compensation range where the driving voltage is increased from a high temperature side toward a lower temperature side according to temperature information detected by the temperature sensor (), and a second temperature compensation range where the driving voltage is rendered in a maximum value at a predetermined temperature, or rendered substantially equal to, or smaller than the maximum value on a side of the boundary, lower than the predetermined temperature.