Abstract: A transflective liquid crystal display includes a lower polarizer (100) and an upper polarizer (101) facing each other, a liquid crystal cell (200) generally between the lower and upper polarizers, and a multilayer optical film (300) disposed between the lower polarizer and the liquid crystal cell. The multilayer optical film has a transmissive axis and a reflective axis. The light polarized parallel to the transmissive axis can transmit through the multilayer optical film, and light polarized parallel to the reflective axis can be reflected by the multilayer optical film. Thus, the TR-LCD, in transmissive mode, the polarized light that is from the backlight and passes the lower polarizer is completely useful. And in reflective mode, the polarized light from ambient and passing the upper polarizer is completely useful. That is, the efficiency of utilization of light is high.