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Title:
INFRARED REFLECTIVE FILM, PREPARATION METHOD THEREFOR, AND INFRARED REFLECTION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2017/148329
Kind Code:
A1
Abstract:
An infrared reflective film, a preparation method, and an infrared reflection method. The infrared reflective film comprises two substrates (1) that are packaged to form a regulation region; the regulation region is filled with a liquid crystal layer; the liquid crystal layer comprises a mixed liquid crystal material (3) and introns (4) used for controlling the thickness of the liquid crystal layer. The mixed liquid crystal material (3) comprises a thermally-responsive liquid crystal material and a chiral additive; the introns (4) are dispersed in the mixed liquid crystal material (3). The preparation method for an infrared reflective film comprises: preparing two substrates (1); preparing alignment layers (5) on opposite surfaces of the two substrates (1); taking introns (4) and placing the introns (4) on one substrate (1), placing the other substrate (1) on the introns (4), and arranging the two substrates (1) opposite to each other to prepare a liquid crystal cell; and injecting a mixed liquid crystal material (3) into the liquid crystal cell. Within the use temperature range of the infrared reflective film, the mixed liquid crystal material (3) is of a chiral nematic phase and the screw pitch thereof can change as the temperature changes, thereby implementing reflective waveband regulation of the infrared reflective film, to meet the requirement for light regulation.

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Inventors:
ZHOU GUOFU (CN)
YUAN DONG (CN)
HU XIAOWEN (CN)
LI CHEN (CN)
Application Number:
PCT/CN2017/074687
Publication Date:
September 08, 2017
Filing Date:
February 24, 2017
Export Citation:
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Assignee:
SHENZHEN GUOHUA OPTOELECTRONICS CO LTD (CN)
ACAD SHENZHEN GUOHUA OPTOELECTRONICS (CN)
International Classes:
G02F1/1333
Foreign References:
US20150261021A12015-09-17
US20140320776A12014-10-30
CN105676507A2016-06-15
CN101148591A2008-03-26
CN104793381A2015-07-22
Attorney, Agent or Firm:
JIAQUAN IP LAW FIRM (CN)
Download PDF:
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