发明授权
US08599146B2 Liquid crystal device, electronic apparatus and position identification method for identifying a position of an object 有权
用于识别物体的位置的液晶装置,电子设备和位置识别方法

Liquid crystal device, electronic apparatus and position identification method for identifying a position of an object
摘要:
A liquid crystal device includes a liquid crystal panel, a plurality of detection electrodes, a switching circuit, and a position identification device. The liquid crystal panel is configured so that a liquid crystal is sealed in a gap between a first substrate and a second substrate, which are opposed to each other, and a voltage of an opposite electrode opposite the liquid crystal periodically varies. The plurality of detection electrodes are provided on a side opposite to a side on which the liquid crystal is provided via the first substrate, wherein an initial voltage is induced in each of the plurality of detection electrodes on the basis of a variation in voltage of the opposite electrode. The switching circuit sequentially connects each of the plurality of detection electrodes, in which the initial voltages are induced, to a detection portion. The position identification device generates a position signal that indicates a position of a pointing body on the basis of a detection signal produced in the detection portion.
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