US Patent No. 10,705,366

METHOD FOR FABRICATING MICRO-CELL STRUCTURES


Patent No. 10,705,366
Issue Date July 07, 2020
Title Method For Fabricating Micro-cell Structures
Inventorship Tsung-Hsien Lin, Kaohsiung (TW)
Cheng-Chang Li, Kaohsiung (TW)
Heng-Yi Tseng, Kaohsiung (TW)
Hung-Chang Jau, Kaohsiung (TW)
Jin-Wei Lin, Kaohsiung (TW)
Assignee NATIONAL SUN YAT-SEN UNIVERSITY, Kaohsiung (TW)

Claim of US Patent No. 10,705,366

1. A method for fabricating micro-cell structures, comprising steps of: providing a liquid crystal mixture comprising: 15 wt % to 91 wt % of a negative type liquid crystal material; 0.0001 wt % to 5 wt % of a salt ionic material; 3 wt % to 40 wt % of a chiral molecule material; and 5 wt % to 40 wt % of a photocurable adhesive material; performing a heating step on the liquid crystal mixture at a temperature ranging from 40° C. to 150° C.; performing a heat induced phase separation step on the liquid crystal mixture at a thermal phase separation temperature for a thermal phase separation time such that the liquid crystal mixture forms a plurality of liquid crystal particles and a network photo-curing adhesive, wherein the thermal phase separation temperature and the thermal phase separation time are determined by a changing rate of a percentage of an area of the liquid crystal mixture that contains light transmitting liquid crystal material; and performing a photo-curing step on the liquid crystal mixture by emitting an ultraviolet light so that the liquid crystal particles and the network photo-curing adhesive further form a plurality of micro-cell structures.