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    IMAGE DISPLAY UNIT
    1.
    发明专利
    IMAGE DISPLAY UNIT 未知

    公开(公告)号：AU2003235217A1

    公开(公告)日：2003-10-27

    申请号：AU2003235217

    申请日：2003-04-17

    Applicant: BRIDGESTONE CORP

    Inventor： NIHEI NORIO ,  KITANO SOU ,  TAKAGI MITSUHARU ,  YAKUSHIJI MANABU ,  MURATA KAZUYA ,  SAKURAI RYOU ,  IWABUCHI YOSHINORI ,  YAMAZAKI HIROTAKA ,  MASUDA YOSHITOMO ,  HATTORI REIJI

    IPC: G02F1/1333 ,  G02F1/1343 ,  G02F1/167 ,  G09G3/34 ,  H03L7/087 ,  H03L7/089 ,  H03L7/113

    Abstract: A dry-toner type coloured particle display (fig. 13) is disclosed. In the image display panel, two or more groups of particles (103) having different colours and different charging characteristics are sealed in the space between two substrates (101,102), at least one of which is transparent. The particles move through the space in response to an applied electrostatic field produced by a pair of electrodes arranged on the substrates in order to display an image. Surface texture parameters R a (average roughness) and S m (usually an average peak to peak distance between neighbouring asperities on a surface) of the bounding substrates lie within specified ranges, defined relative to the particle size, in order to weaken attractive forces between the particles and the surface of the respective substrate. These attractive forces can be adhesion forces such as intermolecular and electrostatic image charge forces (as well as others), and are reduced by decreasing the effective particle to substrate contact area. As a result, the particles are more easily removed and the display driving voltage is reduced. Further display arrangements include the provision of bumps, dips or micro-cutouts on part of a substrate electrode to create a lateral electric field component, which again weakens attractive forces between the particles and the substrate electrode. Additionally, there is an arrangement disclosed in which an insulating member having a volume resistivity Á of not less than 1 x 10 12 ©.cm is coated thinly on to the surface of the substrate with which the particles are in contact in order to prevent leakage of charge away from the particles to the substrate. Finally, there is an arrangement in which the display state of the image can be read-out by detecting the current due to the particles when these are moved inside a pixel.

    IMAGE DISPLAY
    4.
    发明专利
    IMAGE DISPLAY 未知

    公开(公告)号：AU2003252656A1

    公开(公告)日：2004-02-02

    申请号：AU2003252656

    申请日：2003-07-16

    Applicant: BRIDGESTONE CORP

    Inventor： KITANO HAJIME ,  NIHEI NORIO ,  YAMAZAKI HIROTAKA ,  MASUDA YOSHITOMO ,  TANUMA ITSUO ,  SAKURAI RYOU ,  MASUTANI MAKI ,  TAZAWA HARE

    IPC: G02F1/13357 ,  G02F1/167 ,  G02F1/17 ,  G09F9/00 ,  G09F9/37

    Abstract: An image display device constructed by: an image display means for displaying an image by moving chargeable particles arranged between electrodes by means of a voltage applied to the electrodes; and a light emission means for emitting a light to an image display surface of the image display means (first aspect of the invention). Moreover, an image display device which has an image display panel, in which two or more groups of particles or liquid powders having different colors and different charge characteristics are sealed between opposed two substrates, at least one of two substrates being transparent, and, in which the particles or the liquid powders, to which an electrostatic field produced by a pair of electrodes provided on one substrate or both substrates respectively is applied, are made to move so as to display an image, characterized in that a color filter is arranged to an outer surface or an inner surface of a transparent substrate of the image display panel so as to perform a color displaying (second aspect of the invention).

    PARTICLES AND DEVICE FOR DISPLAYING IMAGE
    7.
    发明公开
    PARTICLES AND DEVICE FOR DISPLAYING IMAGE 审中-公开
    粒子和装置VIEW

    公开(公告)号：EP1429178A4

    公开(公告)日：2005-11-02

    申请号：EP02772863

    申请日：2002-09-19

    Applicant: BRIDGESTONE CORP

    Inventor： YAKUSHIJI GAKU ,  KITANO HAJIME ,  MURATA KAZUYA ,  NIHEI NORIO ,  TAKAGI KOJI ,  MASUDA YOSHITOMO ,  KAWAGOE TAKAHIRO

    IPC: G02B26/02 ,  G02F1/167

    CPC classification number: G02F1/167 ,  G02B26/02 ,  G02F2001/1674

    Abstract: Particles for use in an image displaying device to display and erase images repeatedly through the flight or movement of particles by Coulomb force or the like, wherein the particles are coated with a resin; the particles are controlled with respect to the span of the distribution of particle diameters, the attenuation of electric charge, the change of surface hardness with temperature, tensile strength at break, Izod impact strength (with notch), Taber abrasion, tensile modulus, bending modulus or tear strength; the particles are composite particles; the particles are treated with a solution of an electric charge controlling agent; the particles are coated with a resin by the spray of a solution of the resin; the particles have one or more outer resin layers comprising a component having a refractive index different from that of the center portion thereof; and/or the particles comprises a resin component prepared by polymerizing a specific monomer. The above particles can be suitably used for providing stable images.

    IMAGE DISPLAY UNIT
    10.
    发明专利
    IMAGE DISPLAY UNIT 未知

    公开(公告)号：AU2003207186A1

    公开(公告)日：2003-09-04

    申请号：AU2003207186

    申请日：2003-02-07

    Applicant: BRIDGESTONE CORP

    Inventor： KITANO SOU ,  YAKUSHIJI MANABU ,  MURATA KAZUYA ,  TAKAGI MITSUHARU ,  MASUDA YOSHITOMO ,  KAWAGOE TAKAHIRO ,  HATTORI REIJI ,  NIHEI NORIO

    IPC: G02F1/167 ,  G09G3/20 ,  G09G3/34 ,  G02F1/17

    Abstract: Each embodiment relates to an image display device which comprises an image display panel, in which two or more groups of particles having different colors and different charge characteristics are sealed between two substrates, at least one of two substrates being transparent, and, in which the particles, to which an electrostatic field produced by a pair of electrodes provided on one or both substrates is applied, are made to fly and move so as to display an image. Among them, in the first aspect of the invention, an image forming process for forming the image by applying an electric field pattern between the electrodes, the electric field pattern serving to fly particles A to the substrate at an image display side; and an image forming process for forming the image by applying an inversion (negative) electric field pattern with respect to the electric field pattern, the inversion electric field pattern serving to fly particles B having different colors and different charge characteristics with respect to those of the particles A to the substrate at an image display side; so that an image deleting process prior to forming the image to be displayed is eliminated.

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