21.
    发明专利
    未知

    公开(公告)号:FR2375683A1

    公开(公告)日:1978-07-21

    申请号:FR7734664

    申请日:1977-11-10

    Applicant: IBM

    Abstract: According to the disclosure, electrochromic display apparatus is provided, comprising, an electrolyte containing an electrochromic material, a plurality of display electrodes in the electrolyte, the display electrodes being connected in at least one group to enable selection of display electrodes, means for selecting at least some display electrodes, means to effect deposition of a visible coating of colored species derived from the electrochromic material onto the selected display electrodes, and means to effect deposition of an invisible coating of the colored species onto all unselected display electrodes, whereby the potentials of selected and unselected display electrodes are equalized.

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