EL emitting touch switch
An EL emitting touch switch includes first electrodes, a single second electrode facing the first electrodes, and EL layers each sandwiched between a corresponding one of the first electrodes and the second electrode. A light emission driver applies a driving voltage between the first and second ele...
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| creator | YAMAUCHI KAZUTO TANAKA SADAHIKO YAMANOUE KOUICHI MURAYAMA YASUNORI TAKIZAWA KEITARO |
| description | An EL emitting touch switch includes first electrodes, a single second electrode facing the first electrodes, and EL layers each sandwiched between a corresponding one of the first electrodes and the second electrode. A light emission driver applies a driving voltage between the first and second electrodes to cause the EL layers to emit light. A timing signal generator generates a timing signal to control the light emission driver such that the application of the driving voltage is stopped at predetermined intervals. Touch decision units are provided for each first electrode. Each touch decision unit includes a feedback circuit for supplying current to the corresponding first electrode such that the potentials of the first and second electrodes become equal to each other, and detects contact of a human body with the corresponding first electrode based on operation of the feedback circuit while the application of the driving voltage is stopped. |
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| subjects | BASIC ELECTRONIC CIRCUITRY CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY PHYSICS PULSE TECHNIQUE |
| title | EL emitting touch switch |
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