Patent ID: 8692969
Filing Date: 2014-04-08
Classification: G02B,G02F

Abstract:
1. A display device comprising: a first substrate; a color filter on the first substrate, the color filter including a pixel unit having a plurality of sub-pixels of different colors, the plurality of sub-pixels each including flat plate metal layers and a plurality of color PDLC layers on the flat plate metal layers, and the plurality of color PDLC layers each include a polymer, a plurality of liquid crystal drops dispersed in the polymer, a plurality of color display materials mixed in the liquid crystal drops and a plurality of holes in each of the plurality of color PDLC layers; an optical shutter layer on the color filter and in which transmittance of incident light is individually controlled in a region corresponding to each of the sub-pixels; a transparent electrode on the optical shutter layer; and a second substrate on the transparent electrode, wherein light scattered by the plurality of liquid crystal drops is reflected by the flat plate metal layers, wherein the plurality of holes expose the flat plate metal layers with respect to the optical shutter layer, and wherein the flat plate metal layers included in each of the plurality of sub-pixels are used as a pixel electrode and voltage applied between the flat plate metal layers and the transparent electrode forms an electric field in a region of the optical shutter layer corresponding to each of the plurality of sub-pixels.