NEC NL6448AC3318 (NL6448AC33-18) LCD Screen Display Panel. NL6448AC33-18 is a TFT (thin film transistor) active matrix color liquid crystal display (LCD) comprising amorphous silicon TFT attached to each signal electrode, a driving circuit and a backlight. NL6448AC33-18 has a built-in backlight. Backlight includes long life CCFLs and the tubes are replaceable. The 26 cm diagonal display area contains 640 × 480 pixels and can display 262144 colors simultaneously. NL6448AC33-18 is suitable for factory automation use, because luminance is higher, and viewing direction is selectable by switching display scan direction.