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. 04, 2017
Filed:
Jan. 25, 2013
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
Noriyuki Tanaka, Osaka, JP;
Kouji Kumada, Osaka, JP;
Sharp Kabushiki Kaisha, Sakai, JP;
Abstract
Provided is a display device capable of switching a refresh rate while suppressing deterioration in display quality and degradation in liquid crystal. In the case of switching the refresh rate from 60 Hz to 7.5 Hz, a transition period for gradually changing the refresh rate from 60 Hz to 7.5 Hz is provided between a 60-Hz period and a 7.5-Hz period. This transition period is configured by sequentially arraying a 30-Hz period, a 20-Hz period, a 15-Hz period, a 12-Hz period and a 10-Hz period from a start point of the transition period. Hence the refresh rate gradually changes from 60 Hz to 7.5 Hz sequentially through 30 Hz, 20 Hz, 15 Hz, 12 Hz and 10 Hz. The number of positive-polarity frames and the number of negative-polarity frames are respectively 20 in the whole of the transition period, and are equal to each other.