Abstract: A sheet of piezoelectric material is configured in a chip card; alternating current (AC) is generated through bending the piezoelectric material back and forth, the alternating current (AC) is then rectified into direct current (DC) to energize the chip card display system to display stored information.
Abstract: A transflective layer is inserted in between a light modulator and a specific-color reflector to allow partial transmission and partial reflection of the light transmitted through the light modulator. The specific-color reflector is arranged to reflect a light component of a designated color of the transmitted light.