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    DISPLAY
    1.
    发明专利
    DISPLAY 失效

    公开(公告)号：JPH0372398A

    公开(公告)日：1991-03-27

    申请号：JP20704089

    申请日：1989-08-11

    Applicant: IBM

    Inventor： MINAMI TOSHIYA ,  SATO HIROSHI ,  SATO TAKANOBU

    IPC: G09G5/00 ,  G09G3/20 ,  G09G3/36 ,  G09G5/22 ,  G09G5/30

    Abstract: PURPOSE: To eliminate a difficulty to watch and to prevent the eyestrain of an operator by providing a signal generating means for generating a control signal for displaying a foreground dot with a low luminance and a background dot with a high luminance or a control signal for displaying the foreground dot with zero luminance and the background dot with high a luminance corresponding to a mode signal. CONSTITUTION: This device is composed of a controller 1, column/line/ row counter 2, address generating circuit 3, character code buffer 4, attribute buffer 5, character code register 6, font memory 7, parallel/serial switching circuit 8, mixer circuit 9, signal generating circuit, namely, mode switching circuit 10, video circuit 11 and CRT display device 12. Then, in response to the ordinary mode signal, the control signal is generated for displaying the foreground dot with low luminance and the background dot with high luminance and in repsonse to the high luminance mode signal, the control signal is generated for displaying the foreground dot with zero luminance and the background dot with high luminance. Thus, there is no difficulty to watch and the eyestrain of the operator can be prevented.

    DEVICE AND METHOD FOR DRIVING PLURAL DISPLAY DEVICES TO BE CHAINED, CHAINABLE DISPLAY DEVICE AND CHAINED DISPLAY SYSTEM
    4.
    发明专利
    DEVICE AND METHOD FOR DRIVING PLURAL DISPLAY DEVICES TO BE CHAINED, CHAINABLE DISPLAY DEVICE AND CHAINED DISPLAY SYSTEM 失效

    公开(公告)号：JP2001013937A

    公开(公告)日：2001-01-19

    申请号：JP16435499

    申请日：1999-06-10

    Applicant: IBM

    Inventor： YAMASHITA HIROSHI ,  MINAMI TOSHIYA ,  IKEGAMI HIROYUKI ,  HAYATA MASAYUKI

    IPC: G09G5/00 ,  G06F3/14

    Abstract: PROBLEM TO BE SOLVED: To attain easiness of extension by enabling many display devices to be chainingly connected in a state of which physical restrictions from respective devices are eliminated without changing the hardware of a system side. SOLUTION: This system is provided with a display driving device 1 outputting a video signal which is to be displayed with respect display areas and a chained display signal which is to be added to the video signal and also which uses at least the timing of one line, a first display device 2(1) capable of displaying a video with respect the display area of itself based on the video signal by inputting the video signal and the chained display signal and also by analyzing the chained display signal while being connected to the device 1 and a second display device 2(2) capable of displaying the video with respect to the display area of itself based on the video signal by inputting the video signal and the chained display signal and also by analyzing the chained display signal while being connected to the first display device 2(1).

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