Electrophoretic display, method for driving electrophoretic display, and storage display
AssigneeSeiko Epson Corporation
InventorKazunori Hiramatsu
Life of this patent
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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 including a plurality of electrophoretic devices in each of which electrically charged particles are disposed between a pair of electrodes, comprising:
- applying a first voltage corresponding to an image data to the plurality of electrophoretic devices to display a first image;
- after application of the first voltage to the plurality of electrophoretic devices, applying a first reset voltage to the plurality of electrophoretic devices;
- after application of the first reset voltage to the plurality of electrophoretic devices, applying a second voltage corresponding to additional image data to display a second image to the plurality of electrophoretic devices;
- and
- after application of the second voltage to display the second image, applying a second reset voltage to the plurality of electrophoretic devices, the second reset voltage being of a greater magnitude than the first reset voltage;
- wherein the first reset voltage is of a magnitude that a first afterimage of the first image remains.
An electrophoretic apparatus, comprising:
- a plurality of electrophoretic devices in each of which electrically charged particles are disposed between a pair of electrodes;
- and
- a controlling unit for performing:
- applying a first voltage corresponding to an image data to the plurality of electrophoretic devices to display a first image;
- after application of the first voltage to the plurality of electrophoretic devices, applying a first reset voltage to the plurality of electrophoretic devices;
- after application of the first reset voltage to the plurality of electrophoretic devices, applying a second voltage corresponding to additional image data to display a second image to the plurality of electrophoretic devices;
- and
- after application of the second voltage to display the second image, applying a second reset voltage to the plurality of electrophoretic devices, the second reset voltage being of a greater magnitude than the first reset voltage;
- wherein the first reset voltage is of a magnitude that a first afterimage of the first image remains.
A method for driving an electrophoretic display including a plurality of electrophoretic devices in each of which electrically charged particles are disposed between a pair of electrodes, comprising:
- applying a first voltage corresponding to an image data to the plurality of electrophoretic devices to display a first image;
- after application of the first voltage to the plurality of electrophoretic devices, applying a first reset voltage to the plurality of electrophoretic devices;
- after application of the first reset voltage to the plurality of electrophoretic devices, applying a second voltage corresponding to additional image data to display a second image to the plurality of electrophoretic devices;
- and after application of the second voltage to display the second image, applying a second reset voltage to the plurality of electrophoretic devices, the second reset voltage being of a greater magnitude than the first reset voltage;
- wherein the first reset voltage is of a magnitude that a first afterimage of the first image remains;
- wherein the second reset voltage is of a magnitude that no afterimages of the first image remains.
An electrophoretic apparatus, comprising:
- a plurality of electrophoretic devices in each of which electrically charged particles are disposed between a pair of electrodes;
- and a controlling unit for performing:
- applying a first voltage corresponding to an image data to the plurality of electrophoretic devices to display a first image;
- after application of the first voltage to the plurality of electrophoretic devices, applying a first reset voltage to the plurality of electrophoretic devices;
- after application of the first voltage to the plurality of electrophoretic devices, applying a second voltage corresponding to additional image data to display a second image to the plurality of electrophoretic devices;
- and after application of the second voltage to display the second image, applying a second reset voltage to the plurality of electrophoretic devices, the second reset voltage being of a greater magnitude than the first reset voltage;
- wherein the first reset voltage is of a magnitude that a first afterimage of the first image remains;
- wherein the second reset voltage is of a magnitude that no afterimages of the first image remains.
Dependencies are inferred from the claim text.