LCD SEGMENTS SIGN APPARATUS USING AERIAL RADIO WAVE

摘要

PURPOSE: A device for displaying a liquid crystal display segment by a radio frequency is provided to identify the reception of telephone without taking out the mobile communication telephone such as a handset. CONSTITUTION: A device for displaying a liquid crystal display segment by a radio frequency includes a LCD(601) and a driving circuit. The LCD(601) is provided with a plurality of segments(602,603,604,605). The driving circuit detects the radio frequency emitted from a microwave transmitter(100) to generate the radio frequency. The driving circuit converts the detected radio frequency into a predetermined size of current and voltage. And, the driving circuit performs a periodic ON and OFF operations to each of the segments(602,603,604,605) in a predetermined time interval by using the converted current and the voltage as a switching signal source.