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AssigneeSharp Kabushiki Kaisha
InventorsKyoichi Yamamoto, Shigeyuki Harada, Atsushi Sakamoto, Toshihiro Ohba, Hiroshi Kishishita
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In a display device having a plurality of scanning-side electrodes arranged in one direction, a plurality of data-side electrodes arranged in a second direction intersection the first direction, and dielectric layers interposed therebetween, a modulated voltage the magnitude of which is varied according to the emission or non-emission of light is applied to the data-side electrodes, while applying a write voltage in line sequential fashion to the scanning-side electrodes, thereby performing the display control. In such a display device, the polarity of the voltage applied between the data-side electrode and the scanning-side electrode corresponding to the picture element to be driven for light emission is reversed one or more times during the period in which the write voltage is being applied to the scanning-side electrode. This serves to reduce the modulated voltage and the write voltage, thus contributing to the reduction in power consumption. Even when the modulated voltage or the write voltage is reduced, the desired brightness of emitted light can be obtained. In the case of not lowering the modulated voltage or the write voltage, it is possible to further enhance the brightness of emitted light.
A method of driving a display device having a plurality of scanning-side electrodes extending in one direction, a plurality of data-side electrodes extending in a second direction intersecting the first direction, and dielectric layers interposed therebetween, picture elements being formed at intersections of the scanning-side electrodes and data-side electrodes, the picture elements being driven by applying a modulated voltage, the magnitude thereof being varied according to the emission or non-emission of light, to the data-side electrodes, while applying a write voltage in line sequential fashion to alternately divided odd number scanning-side electrodes and even number scanning-side electrodes, so that a voltage including the applied modulated and write voltage exceeding the emitting threshold voltage of the picture element is applied for emission of light and a voltage including the applied modulated and write voltages below the emitting threshold voltage is applied for non-emission of light, the method comprising:
A driving device for a display device having a plurality of scanning-side electrodes, a plurality of data-side electrodes, and dielectric layers interposed therebetween, picture elements being formed at intersections of the scanning-side electrodes and data-side electrodes, comprising:
Dependencies are inferred from the claim text.