ALEXANDRIA, Va., June 19 -- United States Patent no. 12,332,528, issued on June 17, was assigned to IRIS OPTRONICS Co. LTD. (Tainan, Taiwan).
"Cholesterol liquid crystal display device" was invented by Chi-Chang Liao (Tainan, Taiwan) and Wu-Chang Yang (Tainan, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cholesteric liquid crystal display device includes a first substrate, a second substrate, a third substrate, a first cholesteric liquid crystal layer, a second cholesteric liquid crystal layer, a first common electrode pattern layer, a second common electrode pattern layer, and a first TFT circuit pattern layer and the second TFT circuit pattern layer. The first cholesteric liquid crystal layer is...