CELLULAR PHONE HAVING MIRROR FUNCTION

摘要

PURPOSE: A cellular phone having a mirror function is provided to install a thin film filter on the front side of a cellular phone LCD, thereby implementing the mirror function of reflecting light on an LCD window when the light is not emitted and enabling a user to see the LCD by transmitting the light when the light is emitted. CONSTITUTION: A thin film filter(20) performs a transmitting/reflecting function by being installed on the front side of an LCD(30). A mirror mode switch(40) turns on/off an LCD backlight. When the LCD backlight is turned off, the LCD(30) becomes a mirror by the reaction of a reflective film of the thin film filter(20). The thin film filter(20) transmits light when one side illumination is the same as or higher than the other side illumination. If the one side illumination is lower than the other side illumination, the light is reflected on the thin film filter(20).