A reflective display device has attracted attention in display fields such as electronic book readers, advertisement boards, exhibition boxes, etc., due to its advantages of low power consumption, low cost and the like. For example, a total internal reflection (TIR)-based display technology has become a research hotspot because of its low cost and high compatibility with a Thin Film Transistor-Liquid Crystal Display (TFT-LCD) process.
The TIR refers to that in the case that light rays are incident to an optically thinner medium from an optically denser medium, all light rays will be reflected instead of entering into the optically thinner medium if an incident angle of the light rays is greater than or equal to a critical angle of total reflection.