公开(公告)号：US09666138B2

公开(公告)日：2017-05-30

申请号：US14568175

申请日：2014-12-12

Applicant: FUTABA CORPORATION

Inventor： Takashi Muguruma ,  Terukazu Sugimoto ,  Keisuke Kawana ,  Yukio Kamiyama ,  Kazuhiro Iwata

IPC: G09G3/30 ,  G09G3/3283 ,  G09G3/36 ,  G09G3/3216 ,  G09G3/3275 ,  G09G3/10

CPC classification number: G09G3/3283 ,  G09G3/3216 ,  G09G3/3275 ,  G09G3/3685 ,  G09G2300/0426 ,  G09G2310/0243 ,  G09G2310/0272 ,  G09G2310/0291

Abstract: A display driving device performs display drive based on display data with respect to a display unit including pixels arranged at respective intersections of data lines and scanning lines. The device includes: a current setting unit configured to store current gradation values which are set for the respective scanning lines that constitute a frame of the display data; a current gradation control unit configured to, at each of scan timings for the respective scanning lines within one frame, generate a constant current corresponding to a current gradation value for a corresponding scanning line among the current gradation values stored in the current setting unit; and a data line driving unit configured to supply the constant current generated by the current gradation control unit to the respective data lines for time periods corresponding to pixel gradation values defined by the display data.