POSITION DETECTING DEVICE
First Claim
1. A position detecting device comprising:
- a display unit which has a first electrode formed of a transparent conductive film, a plurality of second electrodes, and display material interposed between the first electrode and the plurality of second electrodes;
a display driver configured to drive the display unit based on a video signal input to the display driver; and
a position detecting section configured to detect a position indicated on the first electrode by an indicator and to output a detected position signal,wherein the display unit is configured to maintain a display state when a drive power applied between the first electrode and the second electrodes is discontinued.
1 Assignment
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Accused Products
Abstract
A position detecting device includes: a display unit having a first electrode formed of a transparent conductive film, a plurality of second electrodes, and display material interposed between the first electrode and the second electrodes; a display driver configured to drive the display unit based on a video signal input to the display driver; and a position detecting section configured to detect a position of an indicator on the first electrode and to output the detected position. The display unit may comprise, for example, an “electronic paper,” such that the display state of the display unit can be maintained even after a drive power applied between the first electrode and the second electrodes is discontinued.
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Citations
18 Claims
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1. A position detecting device comprising:
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a display unit which has a first electrode formed of a transparent conductive film, a plurality of second electrodes, and display material interposed between the first electrode and the plurality of second electrodes; a display driver configured to drive the display unit based on a video signal input to the display driver; and a position detecting section configured to detect a position indicated on the first electrode by an indicator and to output a detected position signal, wherein the display unit is configured to maintain a display state when a drive power applied between the first electrode and the second electrodes is discontinued. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for detecting a position on a display unit, wherein the display unit has a first electrode formed of a transparent conductive film, a plurality of second electrodes, and display material interposed between the first electrode and the plurality of second electrodes, the method comprising:
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driving the display unit based on a video signal; maintaining a display state of the display unit when a drive power applied between the first electrode and the second electrodes is discontinued; and detecting a position indicated on the first electrode by an indicator and outputting a detected position signal. - View Dependent Claims (16, 17, 18)
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Specification