A display element is a device for displaying visual and stereoscopic image information. Recently, flat display devices having good performance (e.g., high-definition) in several respects have been developed.
Representative examples of the flat display devices may include a thin-film transistor liquid crystal display (TFT-LCD), a liquid crystal display (LCD), etc. Such display devices may be classified as a transmissive display or a reflective display.
A thin-film transistor liquid crystal display, which is a kind of transmissive liquid crystal display, has a problem in that power consumption of a backlight light source located below a lower substrate is large.
Thus, as a reflective liquid crystal display, a cholesteric liquid crystal display element was researched and developed. In order to realize full color, the cholesteric liquid crystal display may be implemented by stacking three cholesteric liquid crystal display elements with different pitches or by partitioning cholesteric liquid crystals with different pitches in a single layer by using partition walls.