-
公开(公告)号：US20150170612A1
公开(公告)日：2015-06-18
申请号：US14568175
申请日：2014-12-12
Applicant: FUTABA CORPORATION
Inventor： Takashi MUGURUMA , Terukazu SUGIMOTO , Keisuke KAWANA , Yukio KAMIYAMA , Kazuhiro IWATA
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.
Abstract translation: 显示驱动装置基于显示单元执行显示驱动，所述显示单元包括布置在数据线和扫描线的各个交点处的像素的显示单元。 该设备包括：当前设置单元，被配置为存储为构成显示数据的帧的各扫描线设置的当前灰度值; 当前灰度级控制单元，被配置为在一帧内的各扫描线的每个扫描定时中，生成与存储在当前设定单元中的当前灰度值中对应的扫描线的当前灰度值相对应的恒定电流; 以及数据线驱动单元，其被配置为将由当前灰度控制单元生成的恒定电流提供给相应数据线，用于与由显示数据定义的像素灰度值相对应的时间段。
-
公开(公告)号：US20200004400A1
公开(公告)日：2020-01-02
申请号：US16449654
申请日：2019-06-24
Applicant: FUTABA CORPORATION
Inventor： Takashi MUGURUMA , Terukazu SUGIMOTO , Katsumi TAKAYAMA , Hiroyuki TANAKA
Abstract: A touch panel driving device is provided for sequentially performing a scanning of selecting a pair of transmission signal lines from N number of transmission signal lines and a pair of reception signal lines from M number of reception signal lines. The touch panel driving device includes a reception circuit for respectively receiving, from the pair of reception signal lines, reception signals whose waveforms are changed due to a capacitance change caused by a touch operation and for generating a detection value for detecting the touch operation by comparing the received reception signals, and a plurality of noise filters provided in signal paths from the M number of reception signal lines to the reception circuit for performing a filtering operation of the same filtering characteristics on each of the reception signals supplied to the reception circuit from the pair of reception signal lines.
-
公开(公告)号：US20190243483A1
公开(公告)日：2019-08-08
申请号：US16254689
申请日：2019-01-23
Applicant: Futaba Corporation
Inventor： Terukazu SUGIMOTO , Takashi MUGURUMA , Hiroyuki TANAKA , Katsumi TAKAYAMA , Cheng-Che HO , Fumikazu OMOTO
IPC: G06F3/044
Abstract: A touch panel driving device, for sequentially performing scanning for selecting a pair of adjacent transmission signal lines and a pair of adjacent reception signal lines on a touch panel, includes a reception circuit configured to receive reception signals whose waveforms are changed by a capacitance change caused by an operation from the pair of reception signal lines of the touch panel and generate a detection value for monitoring a touch panel operation. The reception circuit generates the detection value by comparing levels of the reception signals from the reception signal lines while sequentially switching capacitance values of a measurement capacitance unit connected to one of the reception signal lines. The measurement capacitance unit includes capacitance units each forming a certain capacitance value by parallel connection or series connection of capacitors as a capacitance unit forming one capacitance value used for switching the capacitance value of the measurement capacitance unit.
-
-
Search Results
3
records
(took 0.013 seconds)
