Back to results
US 2007/0182704 A1Published application
Electrophoretic display, method for driving electrophoretic display, and storage display
AssigneeSeiko Epson Corporation
InventorKazunori Hiramatsu
Life of this patent
Estimating the term…
Abstract
An electrophoretic display according to the present invention includes a first reset step for applying a first voltage to electrophoretic devices such that no image is displayed and no afterimages are present in the electrophoretic devices between a first step for displaying a first image on the electrophoretic devices and a second step for displaying a second image on the electrophoretic devices and a second reset step for applying a second voltage higher than the first voltage such that no image is displayed and no afterimage is present in the electrophoretic devices at a frequency less than that at which the first reset step is performed.
Claims6
A method for driving an electrophoretic display comprising:
- a first reset step of setting a plurality of electrophoretic devices to a second non-display state in which no image is displayed and afterimages caused by writing first image data in a first writing step may be present by applying a first voltage to the plurality of electrophoretic devices between the first writing step for writing the first image data representing a first image in the plurality of electrophoretic devices so as to display the first image on the plurality of electrophoretic devices and a second writing step for writing second image data representing a second image in the plurality of electrophoretic devices so as to display the second image on the plurality of electrophoretic devices, the first voltage being lower than a non-display-without-afterimage voltage for setting the plurality of electrophoretic devices to a first non-display state in which no image is displayed and the afterimages are not present;
- and
- a second reset step for applying a second voltage serving as the non-display-without-afterimage voltage to the plurality of electrophoretic devices so as to set the plurality of electrophoretic devices to the first non-display state at a frequency less than that at which the first reset step is performed.
An electrophoretic display comprising:
- a plurality of electrophoretic devices;
- and
- a controlling unit for performing a first reset for applying a first voltage to the plurality of electrophoretic devices between the first writing for writing first image data representing a first image in the plurality of electrophoretic devices so as to display the first image, on the plurality of electrophoretic devices and a second writing for writing second image data representing a second image in the plurality of electrophoretic devices so as to display the second image on the plurality of electrophoretic devices, the first voltage being lower than a non-display-without-afterimage voltage for setting the plurality of electrophoretic devices to a first non-display state in which no image is displayed and afterimages caused by the first writing are not present and for performing a second reset for applying a second voltage serving as the non-display-without-afterimage voltage to the plurality of electrophoretic devices so as to set the plurality of electrophoretic devices to the first non-display state at a frequency less than that at which the first reset is performed.
A storage display comprising:
- a plurality of memory devices;
- and
- a controlling unit for performing a first reset for applying a first voltage to the plurality of memory devices between the first writing for writing first image data representing a first image in the plurality of memory devices so as to display the first image on the plurality of memory devices and a second writing for writing second image data representing a second image in the plurality of memory devices so as to display the second image on the plurality of memory devices, the first voltage being lower than a non-display-without-afterimage voltage for setting the plurality of memory devices to a first non-display state in which no image is displayed and afterimages caused by the first writing are not present and for performing a second reset for applying a second voltage serving as the non-display-without-afterimage voltage to the plurality of memory devices so as to set the plurality of memory devices to the first non-display state at a frequency less than that at which the first reset is performed.
Dependencies are inferred from the claim text.