PDLC COMPOSITION AND PDLC FILM USING THEREOF

• Main Author: LEE, SANG SUB
• Format: Patent
• Language: English; Korean
• Published: 03.06.2021
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DYES; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The present invention relates to a polymer-dispersed liquid crystal (PDLC) composition and a PDLC film using the same, and more particularly, to a PDLC composition and a PDLC film using the same, in which hydroxyethyl acrylate (HEA) is mixed with a polymer, so that functions such as turbidity, transmittance, and a wide viewing angle of a manufactured film are ensured, and adhesion between a liquid crystal composite film and an indium tin oxide (ITO) conductive film is improved, and thus peeling (layer separation) between the liquid crystal composite film and the ITO conductive film caused by a physical external force such as cutting or bending of the film is prevented. According to the present invention, the PDLC composition includes a polymer, a nematic liquid crystal mixture, and a photoinitiator, wherein HEA, which is an acryl-based compound, is mixed with the polymer. 본 발명은 고분자 분산형 액정 조성물 및 이를 이용한 고분자 분산형 액정 필름에 관한 것으로, 보다 상세하게는 폴리머에 HEA(히드록시에틸 아크릴레이트)가 혼합됨으로써 제조된 필름의 탁도, 투과율, 광시야각 등의 기능이 확보되면서도 액정 복합막과 ITO 전도성 필름간의 부착력을 향상되어 필름의 절단이나 굽힘 등과 같은 물리적인 외력에 액정 복합막과 ITO 전도성 필름 간의 박리(층분리)가 발생되는 것을 방지할 수 있는 고분자 분산형 액정 조성물 및 이를 이용한 고분자 분산형 액정 필름에 관한 것이다. 본 발명에 따른 고분자 분산형 액정 조성물은, 폴리머와 네마틱 액정 혼합물 및 광개시제가 포함된 고분자 분산형 액정 조성물에 있어서, 상기 폴리머에는 아크릴계 화합물인 HEA(히드록시에틸 아크릴레이트)가 혼합된 것을 특징으로 한다.