Display device and method for driving same

    公开(公告)号:US09940864B2

    公开(公告)日:2018-04-10

    申请号:US15318451

    申请日:2015-06-18

    IPC分类号: G09G3/36 G09G3/20

    摘要: 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).

    Video signal control method and video signal controller for display device

    公开(公告)号:US09865192B2

    公开(公告)日:2018-01-09

    申请号:US14763785

    申请日:2013-03-05

    申请人: Yohei Iida

    发明人: Yohei Iida

    IPC分类号: G09G5/10 G09G3/20

    摘要: The present invention has an object to provide a video signal control technique capable of suppressing deterioration in display quality of a display device in which FRC is employed. A video signal control method for display device according to the present invention includes: (a) acquiring coordinate information and time information in a display screen of a display device; (b) selecting, with reference to an LUT storing a plurality of FRC parameters, a FRC parameter corresponding to the coordinate information and the time information; and (c) outputting the selected FRC parameter as a FRC parameter for controlling red and blue pixels and a FRC parameter for controlling green pixels opposite in phase to the FRC parameter for controlling red and blue pixels.