Abstract:A new method and circuits are introduced which could translate English characters displayed on LCD into Chinese characters displayed on other graphic LCD in real-time.Three steps are covered in the paper.An interceptor is designed to capture the data and commands transfened from the alien unknown CPU to LCD; Filter and Translator are designed to figure out all wanted data or commands and translate the filtered data into Chinese characters by specific CPU;A cheater is applied to keep communication with alien unknown CPU in order to keep the CPU operating as before.