A flat panel display in which a matrix array of electro-sensitive pixel elements organized in rows and columns are coupled to photosensitive devices such as photoresistors. The photoresistors are in turn coupled to X and Y addressing leads which contain X and Y alphanumeric or graphic information to be displayed in the matrix array. The photoresistors are illuminated with light sources substantially in synchronism with signals present on the X or Y addressing leads. Upon illumination by a scanning light source such as a self-scanning gas discharge device, the photoresistor's resistance drops and permits the information on the X and Y addressing leads to be coupled to the appropriate pixel. Addressing of large flat panel displays using as few as two driver circuits for the X and Y leads and as few as four driver circuits for the self-scanning gas discharge device is thus possible.