VISUAL IMAGE DISPLAY DEVICE
    13.
    发明专利

    公开(公告)号:CA1094671A

    公开(公告)日:1981-01-27

    申请号:CA279712

    申请日:1977-06-02

    Applicant: IBM

    Abstract: IMPROVED VISUAL IMAGE DISPLAY DEVICE A visual image display device with improved resolution contains a pair of conductive electrodes in spaced relationship. Adjacent one electrode is a first barrier layer which is typically a resin such as polyamide containing a readily oxidizable and reducible material such as zinc nitrate. Adjacent the other electrode is a thin film of solvent, for example, 1, 2-dichloroethane. Positioned between the film of solvent and the first barrier layer is a second barrier layer which is a normally light transmitting recording medium. The second barrier layer is both photoionizable and capable of electrochemically producing a colored species. Typically the second barrier layer is a solid containing a resin such as polyvinyl butyral, an active material such as l-p-anisyl-3 diethylamino styryl-5-diethylaminophenyl-2-pyrazoline and, in selected embodiments, an activator such as carbon tetrachloride.

    VISUAL IMAGE RECORDING DEVICE
    17.
    发明专利

    公开(公告)号:CA1059229A

    公开(公告)日:1979-07-24

    申请号:CA253541

    申请日:1976-05-27

    Applicant: IBM

    Abstract: A direct view display device comprises a pair of conductive electrodes in spaced relationship and a recording medium having the properties of being both photo-ionizable and capable of electro-chemically producing colored species occupies the space between the electrodes. The display device is exposed to an optical pattern of radiation to which the recording material is sensitive to produce a latent image, and a potential is applied between the electrodes to produce a very dense image corresponding to the optical pattern. The image can be erased by reversing the potential between the electrodes so that the expose and enhance process can be repeated.

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