Patent ID: 8520168

Claim:
A reflective color display device comprising: a first substrate and a second substrate spaced apart from each other; a plurality of first and second electrodes respectively on the first and second substrates; a polymer dispersed liquid crystal (PDLC) layer between the first and second electrodes and including a polymer and liquid crystals in the polymer; a cyan magenta yellow (CMY) color filter on the second substrate and including cyan, magenta, and yellow color filter layers, each one of the cyan, magenta, and yellow color filter layers corresponding to one of the plurality of first electrodes and one of the plurality of second electrodes; and one of an absorption layer and a reflection layer on the first substrate configured to control a color of an emitted light by applying a voltage to the first and second electrodes corresponding to at least one of the cyan, magenta, and yellow color filter layers causing the liquid crystals of the PDLC layer to allow an external light travelling through the CMY color filter and the PDLC layer to be one of absorbed and reflected by the absorption layer and reflection layer respectively, such that no visible light is emitted from the reflective color display device, when no voltage is applied to the first and second electrodes corresponding to the at least one of the cyan, magenta, and yellow color filter layers the liquid crystals of the PDLC layer reflect visible light through the at least one of the cyan, magenta, and yellow color filter layers.