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    Phase control of the voltages applied to opposite electrodes for a cholesteric to nematic phase transition display
    1.
    发明授权
    Phase control of the voltages applied to opposite electrodes for a cholesteric to nematic phase transition display 失效
    施加到胆甾醇到向列相变显示器的相对电极的电压的相位控制

    公开(公告)号：US3891307A

    公开(公告)日：1975-06-24

    申请号：US45045074

    申请日：1974-03-12

    Applicant: MATSUSHITA ELECTRIC IND CO LTD

    Inventor： TSUKAMOTO MASAHIDE ,  OHTSUKA TETSURO

    IPC: G09G3/20 ,  G09G3/36 ,  G02F1/16

    CPC classification number: G09G3/3622 ,  G09G3/2007

    Abstract: An electro-optical device employing liquid crystal cell, which consists of a first electrode and a second electrode opposed to the first electrode, at least one of which being lighttransparent, and a liquid crystal sandwiched between the first and second electrodes, is driven by voltage pulses with special wave form and changes in its optical transmission or reflection. The liquid crystal is cholesteric liquid crystal having positive dielectric anisotropy. A first circuit connected to the first electrode generates a.c. voltage pulse having phase phi 1 for time duration T1 and a d.c. bias voltage of the same amplitude as that of the a.c. voltage pulse. A second circuit connected to the second electrode generates a.c. voltage having the same amplitude, the same bias as that of the a.c. voltage pulse and phase phi 1 switchable to another phase phi 2 for time interval T2 which is varied with the change of a signal such as image signal. This technique is extended to an X-Y matrix display device which has plural display elements formed at intersections of plural X-electrodes and plural Y-electrodes opposing to and crossing the X-electrodes with a gap.

    Abstract translation: 一种使用液晶单元的电光装置，其由与第一电极相对的第一电极和第二电极组成，其中至少一个是透光的，并且被夹在第一和第二电极之间的液晶被驱动 具有特殊波形的电压脉冲及其光学透射或反射的变化。 液晶是具有正介电各向异性的胆甾型液晶。 连接到第一电极的第一电路产生电流。 电压脉冲具有相位phi 1，持续时间T1和直流。 与a.c.相同幅度的偏置电压。 电压脉冲。 连接到第二电极的第二电路产生电流。 具有相同幅度的电压，与a.c.相同的偏置。 电压脉冲和相位phi 1可切换到另一个相位phi 2，时间间隔T2随着信号如图像信号的变化而变化。 该技术扩展到X-Y矩阵显示装置，该X-Y矩阵显示装置具有多个显示元件，该多个显示元件形成在多个X电极和多个Y电极的相交处，并且间隔有X电极并与之交叉。

    3.
    发明专利
    未知

    公开(公告)号：DE69331511D1

    公开(公告)日：2002-03-14

    申请号：DE69331511

    申请日：1993-09-22

    Applicant: MATSUSHITA ELECTRIC IND CO LTD

    Inventor： KAWAKITA KOUJI ,  TSUKAMOTO MASAHIDE ,  HORIO YASUHIKO ,  NAKATANI SEIICHI ,  HATAKEYAMA AKIHITO

    IPC: H05K1/03 ,  H05K1/11 ,  H05K3/40 ,  H05K3/46

    Abstract: A two-sided printed circuit board including a base having a first surface, a second surface substantially parallel to the first surface, and a plurality of through-holes formed in the base; a first conductive layer provided on the first surface of the base; a second conductive layer provided on the second surface of the base; and a conductive particle buried in each of the through-holes in a pressurized state for electrically connecting the first conductive layer and the second conductive layer.

    6.
    发明专利
    未知

    公开(公告)号：DE69317145T2

    公开(公告)日：1998-07-02

    申请号：DE69317145

    申请日：1993-04-30

    Applicant: MATSUSHITA ELECTRIC IND CO LTD

    Inventor： HATAKEYAMA AKIHITO ,  SOGO HIROSHI ,  KOJIMA TAMAO ,  HORIO YASUHIKO ,  TSUKAMOTO MASAHIDE ,  FUKUMURA YASUSHI

    IPC: H05K1/03 ,  H05K1/11 ,  H05K3/22 ,  H05K3/28 ,  H05K3/40 ,  H05K3/46

    Abstract: A method of manufacturing an organic substrate used for printed circuits, which includes the steps of forming through-holes (3) in a porous raw material (2) provided with free tackness films (1) and having compressive shrinkage, filling electro-conductive paste (4) into the through-holes (3), separating the free tackness films (1) from the porous raw material (2) filled with the electro-conductive paste (4) in its through-holes (3), applying metal foils (5) onto the surfaces of the porous raw material (2) from which the free tackness films (1) have been separated, and compressing the porous raw material (2) applied with the metal foils (5) through heating and pressurization, whereby the electro-conductive substances in the electro-conductive paste (4) are connected for electrical connection between the metal foils (5).

    8.
    发明专利
    未知

    公开(公告)号：FR2401551A1

    公开(公告)日：1979-03-23

    申请号：FR7816625

    申请日：1978-06-02

    Applicant: MATSUSHITA ELECTRIC IND CO LTD

    Inventor： TSUKAMOTO MASAHIDE ,  NAGASAWA MASAHIRO ,  YAMAZOE HIROSHI

    IPC: H03H3/08 ,  H03H9/00 ,  H03H9/145 ,  H03H9/64 ,  H03H9/20 ,  H03H9/30

    Abstract: To obtain low insertion loss and low TTE level, a first central transducer, a second transducer and a third transducer are disposed on one surface of a piezoelectric substrate in such a manner that the second and the third transducers are in the direction of propagation (X-direction) of surface acoustic waves launched by the first transducer and the distance between center lines of the first and the second transducers and also the distance between the center lines of the first and the third transducers vary along the Y-direction perpendicular to the X-direction.

    9.
    发明专利
    未知

    公开(公告)号：DE2237997A1

    公开(公告)日：1973-03-22

    申请号：DE2237997

    申请日：1972-07-28

    Applicant: MATSUSHITA ELECTRIC IND CO LTD

    Inventor： TSUKAMOTO MASAHIDE ,  OHTSUKA TETSURO

    IPC: C09K19/50 ,  G02F1/133 ,  G02F1/137 ,  G02F1/16

    Abstract: 1400495 Liquid crystal compositions MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 31 July 1972 [29 July 1971] 35740/72 Heading C4X [Also in Division H4] A liquid crystal composition suitable for use in an electro-optic cell (see Divisions H3-H5) comprises a steroidal compound, a nematogenic compound having positive dielectric anisotropy and, preferably, a further nematogenic compound having negative dielectric anisotropy. Useful steroidal compounds are #-cholesterol, ergosterol, lanosterol, cholesterol and cholesteryl derivatives such as the oleyl carbonate, preferably 1-15 mole per cent in the binary mixture and more than 1 mole per cent in the ternary mixture. The nematogenic compound with positive anisotropy is selected from palkoxybenzylidene - p 1 - cyanoaniline, pcyanobenzylidene - p 1 - alkoxyaniline, palkoxybenzylidene - p 1 - aminoazobenzene and n - alkyl - p - cyanobenzylidene - p 1 - aminocinnamate, preferably 85-99 mole per cent in the binary mixture and more than 3 mole per cent in the ternary. The negative anisotropic material forms the remainder of the ternary mixture and is selected from anisaldazine, p - alkoxybenzylidene - p 1 - acyloxyaniline, p - alkoxybenzylidene - p 1 - alkylaniline, and p,p 1 - dialkoxy - azoxybenzene. More than one of each type of material may be used, the mixture may be a eutectic. Specific examples of compounds and mixtures are provided. Reference has been directed by the Comptroller to Specification 1,227,616.

    10.
    发明专利
    未知

    公开(公告)号：DE69931212T2

    公开(公告)日：2007-03-01

    申请号：DE69931212

    申请日：1999-05-12

    Applicant: MATSUSHITA ELECTRIC IND CO LTD

    Inventor： ANDOU DAIZOU ,  SUGAWA TOSHIO ,  NAKAMURA TADASHI ,  HIGASHITANI HIDEKI ,  TSUKAMOTO MASAHIDE

    IPC: H05K3/40 ,  H01R12/04 ,  H05K3/00 ,  H05K3/20 ,  H05K3/38 ,  H05K3/46

    Abstract: Through holes (104) formed in an electrical insulating substrate (102) having adhesive layers (101) on its both surfaces are filled with a conductor (105). Then, supporting bases (106) having wiring layers (107) with a predetermined pattern are laminated on both the surfaces of the electrical insulating substrate (102), which are then heated and pressurized. After that, the supporting bases (106) are removed, thus obtaining a circuit board in which the wiring layers (107) have been embedded in the adhesive layers (101). The conductor (105) within the through holes (104) are compressed sufficiently, thus forming minute via holes with high reliability.

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