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:
Mar. 08, 2005
Filed:
Jun. 19, 2002
Hideo Kawano, Tokyo, JP;
Hideo Kawano, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A control device of an IPS-mode or other mode liquid crystal display device for increasing response speed without diminishing elastic torque of the liquid crystal. Image signals are supplied in such a manner that one display pattern is displayed in first and second, two consecutive frames. When to increase voltage of the image signal for changing luminance, voltage at the first frame being set higher than a voltage value of gradation scale corresponding to a given luminance; and voltage at the second frame being set to a voltage value of gradation scale corresponding to the given luminance. Meanwhile, when to decrease voltage of the image signal for changing luminance, voltage at the first frame being set lower than a voltage value of gradation scale corresponding to a given luminance; and voltage at the second frame being set to a voltage value of gradation scale corresponding to the given luminance.