Development of wireless power transmission system for electronic paper using one-sided directional flexible antenna

本研究借由无线电力传输技术，将电子纸终端的电池移除，以开发更薄、更轻、更低成本的电子纸装置。由于一般使用的电磁感应传输距离仅限于数公分或更短，我们采用波接收无线电力传输技术，即使在1米或更远的距离也可以接收电力。我们开发了提出了一种将驱动和通信集成电路集成在一个芯片上，并通过改进驱动方法降低电子纸终端功耗，使电子纸终端的驱动功率小于10 mW的技术，并研制了一种单向平板柔性天线和高效率整流电路，将这种功率传输到1 m外的电子纸终端。

By eliminating the battery from electronic paper terminal using the wireless power transmission technology, this study aims to develop thinner, more lightweight and lower cost electronic paper device.Because the transmitting distance of generally used electromagnetic induction is limited to a few cm or less, we employed the wave received wireless power transmission technology which can receive the power even in the distance 1m or more.We developed the technology which can drive the electronic paper less than 10 mW by combining the driving and communicating ICs into one chip and by improving the driving method for lower power consumption of the electronic paper terminals.Further, to transmit this power to the electronic paper terminal in 1 m away, we have developed a unilateral directional flat flexible antenna and rectifier circuit with high efficiency.