| 摘要 |
A camera having a removable image bearing medium and an electronic charging unit for providing a source of high voltage, includes a display on the removable image bearing medium. The camera selectively couples such high voltage to the display, the display including material which is effective in a first condition in response to a selectively applied high voltage for changing the condition of the material to display an image and effective in a second condition for preventing the display of the image, the material being selected so that after displaying the image such material continues to display the image after the removal of the applied high voltage. The camera further causes the high voltage in the charging unit to be applied to the display for causing the material to be effective in the first condition to produce the image and for removing the applied high voltage so that the material continues to display the image. When a voltage less than the high voltage is applied to the display, the material changes to the second condition.
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