Industrial Technology Research Institute

Chang Chun Plastics Co., Ltd.

Pei-Chen Huang

Kung-Lung Cheng

Shih-Hsien Liu

An-Cheng Chen

Kuo-Chang Wang

Chih-Lin Su

Chun-Ming Wu

Shyue-Ming Jang

Kuo-Liang Yeh

Chien-Hsien Cheng

The invention discloses a reflective liquid crystal material formulation, wherein a liquid crystal component of high dielectric anisotropy is employed to lower the driving voltage. By modulating the addition ratio of the high dielectric anisotropy components, reflective liquid crystal compositions of different reflective colors can be driven by a single driving voltage. The invention also provides a reflective bistable display using the above formulation.

Liquid fluorescent composition and light emitting device

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&#xb0; C. and 100&#xb0; 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.

Method of recycling cholesteric liquid crystal

A method of reusing micro-encapsulated cholesteric liquid crystals is provided. The method includes providing a display medium material containing a micro-encapsulated cholesteric liquid crystal and a dispersant. The display medium material is mixed with a solvent to form a mixture having a temperature of between 40&#xb0; C. and 60&#xb0; C. A centrifugal process is performed to the mixture for separating the micro-encapsulated cholesteric liquid crystal and the dispersant. Then, the dispersant and the solvent are removed to obtain the micro-encapsulated cholesteric liquid crystal.

Method of reusing micro-encapsulated cholesteric liquid crystal

A liquid crystal compound of Formula (1) is provided below: wherein R is hydrogen, linear or branching C1-15 alkyl, linear or branching C1-15 alkyl (wherein any one of &#x2014;CH&#x2014; is replaced by &#x2014;O&#x2014;, &#x2014;S&#x2014;, &#x2014;CO&#x2014;, &#x2014;CO&#x2014;O&#x2014;, or &#x2014;O&#x2014;CO&#x2014;), linear or branching C2-15 alkenyl, or linear or branching C2-15 alkenyl (wherein any one of &#x2014;CH&#x2014; is replaced by &#x2014;O&#x2014;, &#x2014;S&#x2014;, &#x2014;CO&#x2014;, &#x2014;CO&#x2014;O&#x2014;, or &#x2014;O&#x2014;CO&#x2014;), A and B are, independently, cyclohexane, cyclohexane (wherein any one of &#x2014;CH&#x2014; is replaced by &#x2014;O&#x2014; or &#x2014;NH&#x2014;), benzene, or benzene (wherein any one of &#x2014;CH&#x2550; is replaced by &#x2014;N&#x2550;), X is a single bond, &#x2014;CO&#x2014;O&#x2014;, &#x2014;O&#x2014;CO&#x2014;, &#x2014;CHO&#x2014;, &#x2014;OCH&#x2014;, &#x2014;CHCH&#x2014;, &#x2014;C&#x2550;C&#x2014;, &#x2014;C&#x2261;C&#x2014;, &#x2014;CFO&#x2014;, or &#x2014;OCF&#x2014;, Q is oxygen or CH, Y is CF, CFH, or CFH, L, L, and Lare, independently, hydrogen or fluorine, and m is 0, 1, or 2.

Liquid crystal compounds and compositions and liquid crystal displays and photoelectric devices comprising the compounds and compositions

The disclosed is a liquid crystal compound and method for manufacturing the same. The liquid crystal compound can be used alone or mixed with commercially available liquid crystal compounds. Because low rotational viscosity of the liquid crystal compound of the invention, it can be used as positive or negative dielectric anisotropic liquid crystal composition.

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Taipei, Taiwan

Pei-Chen Huang