The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 18, 2014
Filed:
Jun. 14, 2012
Pei-chen Huang, Taipei, TW;
Chih-lin Su, Hsinchu County, TW;
Kuo-chang Wang, Taichung, TW;
Shih-hsien Liu, Hsinchu County, TW;
Kung-lung Cheng, Hsinchu, TW;
Pei-Chen Huang, Taipei, TW;
Chih-Lin Su, Hsinchu County, TW;
Kuo-Chang Wang, Taichung, TW;
Shih-Hsien Liu, Hsinchu County, TW;
Kung-Lung Cheng, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A method of recycling a cholesteric liquid crystal is provided. The method includes providing a display medium material containing a micro-encapsulated cholesteric liquid crystal. The display medium material is mixed with a hydrophilic solvent to form a mixture having a temperature of between 70° C. and 100° C. Then, a hydrophobic solvent is added to mix with the hydrophilic solvent. The display medium material, the hydrophobic solvent and the hydrophilic solvent are mixed to form a mixture having a hydrophobic layer and a hydrophilic layer. The hydrophobic layer and the hydrophilic layer of the mixture are separated, wherein the hydrophobic layer contains a cholesteric liquid crystal and the hydrophobic solvent. Then, the hydrophobic solvent is removed from the hydrophobic layer to obtain the cholesteric liquid crystal.