Current Applied Physics, Vol.11, No.6, 1389-1393, 2011
Printable flexible cholesteric capsule display with a fine resolution of RGB subpixels
We report a method for fabricating a cholesteric liquid crystal capsule display wherein the red, green, and blue capsules are separated in the subpixels with a width of 200 mu m. The mixture of a photo-isomerizable chiral dopant and a nematic liquid crystal was encapsulated by an emulsification technique, and then directly printed onto a plastic substrate. A UV light with different amount of energy was exposed through a shadow photomask, and consequently, the red, green, and blue colors were separately induced in each subpixels zone. (C) 2011 Elsevier B.V. All rights reserved.