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    LIQUID CRYSTAL DISPLAY ELEMENT
    1.
    发明公开
    LIQUID CRYSTAL DISPLAY ELEMENT 失效

    公开(公告)号：KR830000641A

    公开(公告)日：1983-04-16

    申请号：KR780003431

    申请日：1978-11-15

    Applicant: HITACHI LTD

    Inventor： KINUGAWA KIYOSHIGE ,  SHIBUYA YOSHIMICHI ,  ITO MASATOSHI ,  TADASHI ISHIBASHI ,  KANDO YASUHIKO ,  ITO REN

    IPC: G02F1/13

    Abstract: In a liquid crystal display element having a twisted structure comprising two spaced transparent substrates having transparent electrodes arranged thereon in desired display patterns, and a liquid crystal being sealed between the inner surfaces of said two substrates by a sealant, the improvement which comprises an undercoating film of one or more metal oxides, the transparent electrodes is being separated from the inner surface of each of the substrates.

    3.
    发明专利
    未知

    公开(公告)号：DE3536383A1

    公开(公告)日：1986-05-07

    申请号：DE3536383

    申请日：1985-10-11

    Applicant: HITACHI LTD

    Inventor： ENDO SHYUSUKE ,  AOYAMA NAOFUMI ,  YABUUCHI TOSHIHIKO ,  SAKUMA TOSHIYUKI ,  KINUGAWA KIYOSHIGE

    IPC: G02F1/133 ,  G09G3/36

    Abstract: A liquid crystal display device comprising a liquid crystal module including liquid crystal display panel having a plurality of liquid crystal picture elements arranged in a matrix form, and driving circuits for applying driving signals to signal electrodes and to scanning electrodes of the liquid crystal display panel, respectively; a control circuit for controlling the operation of the liquid crystal module; a first circuit for dividing frequency of a timing signal given by the control circuit and producing a first signal of lower frequency; and a second circuit for inverting the first signal of lower frequency once per frame period and generating a second signal to reverse the polarity of voltages applied to liquid crystal display elements with its period tau M'' satisfying the inequality 2.0

    LIQUID CRYSTAL DISPLAY DEVICE
    4.
    发明专利
    LIQUID CRYSTAL DISPLAY DEVICE 未知

    公开(公告)号：GB2165984B

    公开(公告)日：1988-05-05

    申请号：GB8524779

    申请日：1985-10-08

    Applicant: HITACHI LTD

    Inventor： ENDO SHYUSUKE ,  AOYAMA NAOFUMI ,  YABUUCHI TOSHIHIKO ,  SAKUMA TOSHIYUKI ,  KINUGAWA KIYOSHIGE

    IPC: G02F1/133 ,  G09G3/36

    Abstract: A liquid crystal display device comprising a liquid crystal module including liquid crystal display panel having a plurality of liquid crystal picture elements arranged in a matrix form, and driving circuits for applying driving signals to signal electrodes and to scanning electrodes of the liquid crystal display panel, respectively; a control circuit for controlling the operation of the liquid crystal module; a first circuit for dividing frequency of a timing signal given by the control circuit and producing a first signal of lower frequency; and a second circuit for inverting the first signal of lower frequency once per frame period and generating a second signal to reverse the polarity of voltages applied to liquid crystal display elements with its period tau M'' satisfying the inequality 2.0

    6.
    发明专利
    未知

    公开(公告)号：DE2712572A1

    公开(公告)日：1977-12-15

    申请号：DE2712572

    申请日：1977-03-22

    Applicant: HITACHI LTD

    Inventor： KINUGAWA KIYOSHIGE ,  KANAZAKI MIKIO

    IPC: G02F1/1337 ,  G02F1/139 ,  G02F1/13 ,  G09F9/00

    Abstract: In order in a liquid-crystal display device having a helical structure of the liquid crystal to achieve as steep as possible a rise in the contrast with the voltage while at the same time avoiding induced domains, the electrode sides (3, 4) of the substrates (1, 2) of the display device are provided in each case with a boundary layer (10) by means of shadow casting. The casting directions are selected such that their components in the boundary layer planes enclose together with the viewing direction (S), given by the display content, of the device an angle of 90 DEG to 180 DEG for the upper and 0 DEG to 90 DEG for the lower substrate, measured in the sense of the helix of the liquid-crystal helical structure from the upper to the lower substrate.

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