South China Normal University

Academy of Shenzhen Guohua Optoelectronics

Shenzhen Guohua Optoelectronics Co., Ltd.

Shenzhen Guohua Optoelecironics Co., Ltd.

Lingling Shui

Guofu Zhou

Wei Zhao

Xiaowen Hu

Haitao Sun

Weijie Zeng

Chun Ju

Wenmin Yang

A liquid crystal mixture and a temperature-responsive infrared reflection device made by using the liquid crystal mixture containing potassium laurate. Infrared light can pass through the device within a non-working temperature range, and a chiral dopant enables potassium laurate to form a cholesteric phase within a working temperature range. The birefringence value of the potassium laurate gradually increases with the increase of temperature between 12.5&#xb0; C. and 26&#xb0; C., so that the infrared reflection bandwidth of the device constantly increases. The birefringence value of the potassium laurate gradually decreases with the increase of temperature between 26&#xb0; C. and 54.5&#xb0; C., so that the infrared reflection bandwidth of the device constantly decreases. The infrared reflection bandwidth of the infrared reflection device can vary with temperature by adjusting the proportions of the ingredients of the liquid crystal mixture containing potassium laurate.

Liquid crystal mixture and temperature-responsive infrared reflection device

The present disclosure discloses an electroresponsive liquid crystal dimming device comprising a first light transmitting conductive substrate, a first polymer network stabilized liquid crystal layer, a positive liquid crystal layer, a second polymer network stabilized liquid crystal layer and a second light transmitting conductive substrate which are arranged in sequence; and the first polymer network stabilized liquid crystal layer and the second polymer network stabilized liquid crystal layer reflect the circularly polarized light having the same polarization direction. The conversion of the positive liquid crystals in each layer between different states is driven by changing the magnitude of the access voltage of the liquid crystal dimming device according to the present disclosure, thereby realizing the adjustment of blurring to transparent states and color to colorless states of the liquid crystal dimming device, having a good application prospect in the window glass, and home glass window, and the like.

Electroresponsive liquid crystal dimming device

Growing community of inventors

Guangzhou, China

Lingling Shui