Invention Grant
- Patent Title: Display device and method for driving same
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Application No.: US15318451Application Date: 2015-06-18
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Publication No.: US09940864B2Publication Date: 2018-04-10
- Inventor: Yousuke Nakamura , Tatsuhiko Suyama , Teruhisa Masui , Kentaroh Uemura
- Applicant: Sharp Kabushiki Kaisha
- Applicant Address: JP Sakai
- Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee Address: JP Sakai
- Agency: Keating & Bennett, LLP
- Priority: JP2014-130653 20140625
- International Application: PCT/JP2015/067583 WO 20150618
- International Announcement: WO2015/198957 WO 20151230
- Main IPC: G09G3/36
- IPC: G09G3/36 ; G09G3/20

Abstract:
There is provided a display device that is capable of suppressing occurrence of brightness drop which is caused by refresh of a display image during pause driving. In a normal driving mode, input image data (SsD0) according to a continuous tone method is supplied to a source driver (310) through a data selector (230) as an image signal (SsD) for driver. On the other hand, in a low-frequency driving mode in which pause driving is performed, the input image data (SsD0) is converted into dithered input image data (SsD1) by a dithering processing circuit (220), and is supplied to the source driver (310) through the data selector (230) as the image signal (SsD) for driver. A gradation of the dithered input image data (SsD1) is represented in a pseudo manner by an area coverage modulation method by using two values of a maximum value and a minimum value that can be taken as the gradation value of the input image data (SsD0).
Public/Granted literature
- US20170148370A1 DISPLAY DEVICE AND METHOD FOR DRIVING SAME Public/Granted day:2017-05-25
Information query
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