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:
Aug. 19, 2014
Filed:
Mar. 16, 2010
Takayuki Murai, Osaka, JP;
Kohji Fujiwara, Osaka, JP;
Hideki Ichioka, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A method is disclosed for controlling a light source installed in a liquid crystal display device. An embodiment includes a liquid crystal display panel for displaying an image by virtue of having liquid crystals whose orientation changes in response to application of a voltage; a backlight unit with a built-in PWM light modulation type LED for emitting light to be supplied to the liquid crystal display panel; and a control unit for controlling the liquid crystal display panel and the backlight unit. When the response speed of liquid crystal molecules is relatively high, the LED is driven at a relatively low drive frequency, and when the response speed of the liquid crystal molecules is relatively low, the LED is driven at a relatively high drive frequency.