Driving a memory display in a camera
AssigneeEastman Kodak Company
InventorStanley W. Stephenson
Life of this patent
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Abstract
A camera having an electronic flash unit which provides a source of high voltage and having a display for displaying an image, which includes the display including material which is effective in a first condition in response to a selectively applied high voltage for changing the state of the material to display the image and to be effective in a second condition for preventing the display of an image, the material being selected so as after displaying an image to continue to display the image after the removal of applied voltages; and circuitry for coupling and selectively applying the high voltage source in the flash unit to the display for changing the state of the material in the display to produce the image.
Claims5
A camera having an electronic flash unit which provides a source of high voltage and having a display for displaying an image, comprising:
- (a) the display including material which is effective in a first condition in response to a selectively applied high voltage for changing the state of the material to display the image and to be effective in a second condition for preventing the display of an image, the material being selected so as after displaying an image to continue to display the image after the removal of applied voltages;
- and
- (b) means for coupling and selectively applying the high voltage source in the flash unit to the display for changing the state of the material in the display to produce the image.
A camera having an electronic flash unit which provides a source of high voltage and having a display for displaying an image, comprising:
- (a) the display including material which is effective in response to a selectively applied high voltage for changing the state of the material to display the image and having:
- (i) a substrate;
- and
- (ii) a light modulating layer formed over the substrate and including the material including material which is effective in a first condition in response to a selectively applied high voltage for changing the state of the material to display the image and to be effective in a second condition for preventing the display of an image, the material being selected so as after displaying an image to continue to display the image after the removal of applied voltages;
- and
- (b) electrical conduction means connected to the display for coupling and selectively applying the high voltage source in the flash unit to the display for changing the state of the material in the display to produce the image.
Dependencies are inferred from the claim text.