a) TC1602A Display format: 16 chars X 2 Lines Module size: 122X44X13.5 Controller: SPLC780D Backlight: White LED backlight Product range: 1) TN, Black mask,STN, FSTN LCD panels / modules(LCM) 2) Array/Side LED backlight 3) Customized LCD panels / modules b) TC2004B Display format: 20 chars X 4 Lines Module size: 105.0X38.0X13.7 Controller: SPLC780D Backlight: Green LED backlight Product range: 1) TN, Black mask,STN, FSTN LCD panels / modules(LCM) 2) Array/Side LED backlight 3) Customized LCD panels / modules