3.
    发明专利
    未知

    公开(公告)号:DE3784809T2

    公开(公告)日:1993-07-08

    申请号:DE3784809

    申请日:1987-08-17

    Applicant: CANON KK

    Abstract: An optical modulation device, such as a ferroelectric liquid crystal device, comprises a matrix of pixels (11) arranged in a plurality of rows (12) and a plurality of columns (13), pixels on each row being electrically connected to a scanning electrode (S1, S2, S3, S4) and pixels on each column being electrically connected to a signal electrode (I1, I2, I3, I4). The optical modulation device is driven by a method comprising, in a scanning selection period applying a scanning selection signal to a selected scanning electrode (S1, S2, S3, S4), the scanning selection signal comprising plural voltage levels including a maximum value ¦Vs.max¦ in terms of an absolute value with respect to the voltage level of a non-selected scanning electrode, and applying in phase with the scanning selection signal a voltage signal comprising plural voltage levels to a signal electrode (I1, I2, I3, I4) so as to apply to a pixel on the selected scanning electrode plural pulse voltages including a maximum value voltage ¦Vmax¦ and a minimum pulse voltage ¦Vmin¦ respectively in terms of an absolute value, satisfying the relationship of: ¦Vmax¦ - ¦Vmin¦

    6.
    发明专利
    未知

    公开(公告)号:DE69115806D1

    公开(公告)日:1996-02-08

    申请号:DE69115806

    申请日:1991-08-22

    Applicant: CANON KK

    Inventor: KUNO MITSUTOSHI

    Abstract: A method of transferring a substrate between a stage for holding a substrate thereon and a conveying hand for conveying the substrate, is disclosed. In an aspect, the method includes the steps of: moving the conveying hand having the substrate held thereon to a stage attraction starting position; starting attraction, through the stage, of the substrate held by the conveying hand; moving the conveying hand to a transfer position on a side of an attracting surface of the stage remote from the stage attraction starting position; and releasing the attraction of the substrate through the conveying hand.

    7.
    发明专利
    未知

    公开(公告)号:DE3587305T2

    公开(公告)日:1993-08-26

    申请号:DE3587305

    申请日:1985-11-05

    Applicant: CANON KK

    Abstract: An active matrix-type display device, comprising a plurality of field effect transistors arranged in the form of a matrix, means for sequentially driving the gate lines in such a manner that a plurality of gate lines are driven at a time so as to vertically scan the gate lines, and means for changing the combination of said plurality of gate lines driven at a time every vertical scanning period.

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