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43 条记录 (耗时 0.029 秒)

    Display unit having a coordinate input mechanism
    41.
    发明授权
    Display unit having a coordinate input mechanism 失效
    具有坐标输入机构的显示单元

    公开(公告)号：US5633659A

    公开(公告)日：1997-05-27

    申请号：US308297

    申请日：1994-09-19

    申请人： Tsutomu Furuhashi ,  Masaaki Kitajima ,  Satoru Tsunekawa ,  Hiroyuki Mano ,  Shigeyuki Nishitani ,  Tetsuya Suzuki ,  Isao Takita ,  Makiko Ikeda ,  Tatsuzo Hamada

    发明人： Tsutomu Furuhashi ,  Masaaki Kitajima ,  Satoru Tsunekawa ,  Hiroyuki Mano ,  Shigeyuki Nishitani ,  Tetsuya Suzuki ,  Isao Takita ,  Makiko Ikeda ,  Tatsuzo Hamada

    IPC分类号： G06F3/033 ,  G06F3/041 ,  G09G5/00

    CPC分类号： G06F3/0412

    摘要： A display unit which can detect the X coordinate of a position with which a pen is in contact more efficiently. In a non-display period, X-electrodes are grouped into N regions according to the X-electrode arrangement, each region is divided into two parts according to the X-electrode arrangement, and selection voltage is applied to the X-electrodes belonging to each part having larger X coordinates. The process is repeated in order while N is doubled from one to the half value of the number of the X-electrodes of a liquid crystal panel. If a pen coming in contact with the liquid crystal panel and detecting X-electrode selection voltage detects selection voltage with respect to each N value, the Nth most significant bit of the X coordinate of the position with which the pen is in contact is set to `1.` If the pen does not detect selection voltage, the bit is set to `0.` Thus, the X-electrode of the position with which the pen is in contact can be detected at the number of selection voltage application times equal to the minimum number of bits that can represent each of the X-electrodes.

    摘要翻译： 可以更有效地检测笔的位置的X坐标的显示单元。 在非显示期间，根据X电极配置将X电极分组为N个区域，根据X电极配置，将各区域分为两部分，并且将选择电压施加到属于 每个部分具有较大的X坐标。 该过程按顺序重复，而N从液晶面板的X电极的数量的一个值的1/2值翻倍。 如果与液晶面板接触并检测X电极选择电压的笔相对于每个N值检测选择电压，则将与笔接触的位置的X坐标的第N个最高有效位设置为 '1' 如果笔不检测选择电压，则该位设置为“0”。 因此，可以以等于可以表示每个X电极的最小位数的选择电压施加时间的数量来检测与笔接触的位置的X电极。

    Matrix display device
    42.
    发明授权
    Matrix display device 失效
    矩阵显示设备

    公开(公告)号：US4736137A

    公开(公告)日：1988-04-05

    申请号：US77504

    申请日：1987-07-24

    申请人： Jun-ichi Ohwada ,  Masaaki Kitajima ,  Hideaki Kawakami

    发明人： Jun-ichi Ohwada ,  Masaaki Kitajima ,  Hideaki Kawakami

    IPC分类号： G09G3/20 ,  G09G3/30 ,  G09G3/36 ,  G09G3/10

    CPC分类号： G09G3/3688 ,  G09G3/30 ,  G09G3/3666 ,  G09G2300/0408 ,  G09G2300/08 ,  G09G2310/027

    摘要： In a matrix display device, a signal drive circuit comprises selection means for sequentially selecting at least one of display information signals corresponding to a plurality of signal electrodes when at least one of a plurality of scan electrodes is selected, hold means for holding the display information signal selected by the selection means until selection of at least corresponding scan electrode is completed, and voltage conversion means for selecting one of a plurality of voltage levels in accordance with the display information signal held by the hold means and supplying the selected voltage level to the signal electrodes. Since the display information signal is held by the hold means until the selection of at least corresponding scan electrode is completed, one of the plurality of voltage levels is always applied to the signal electrodes and the switching elements do not assume the high impedance state. Accordingly, ununiformity in display image is prevented and a large size matrix display device is provided.

    摘要翻译： 在矩阵式显示装置中，信号驱动电路包括选择装置，用于当选择多个扫描电极中的至少一个时，依次选择与多个信号电极相对应的显示信息信号中的至少一个，用于保持显示信息的保持装置 由选择装置选择的信号直到选择至少相应的扫描电极完成;以及电压转换装置，用于根据由保持装置保持的显示信息信号选择多个电压电平中的一个，并将选择的电压电平提供给 信号电极。 由于显示信息信号由保持装置保持，直到至少对应的扫描电极的选择完成，所以多个电压电平中的一个总是被施加到信号电极，并且开关元件不呈现高阻抗状态。 因此，防止了显示图像的不均匀性，并且提供了大尺寸矩阵显示装置。