Reflective display device and selective display device having the same

Abstract

Disclosed is a reflective display device including: two plates arranged to be separated from each other; a liquid crystal layer arranged between the two plates; a reflective plate arranged under the liquid crystal layer; and a color filter arranged on the top of the liquid crystal layer and configured to selectively transmit a predetermined color of light, wherein the color filter has a bandwidth wider than a half width of light that passes the color filter. In embodiments of the present disclosure, the reflectivity is increased by widening a passage bandwidth of the color filter instead of adjusting the thickness of the color filter, so that the power efficiency is improved and an image with high color purity may be expressed. Furthermore, it is possible to select between reflective mode and transmissive mode depending on the ambient environment, thereby providing goo quality of images to the user in a more stable manner.

Dependencies are inferred from the claim text.