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Flexible polymer dispersed liquid crystal film with graphene transparent electrodes
Yura Kim,Kwangyoon Kim,Ki Buem Kim,Jun-Young Park,Naesung Lee,Yongho Seo 한국물리학회 2016 Current Applied Physics Vol.16 No.3
A flexible polymer-dispersed liquid crystal (PDLC) film with graphene layers as transparent electrodes was fabricated by combining a UV curable polymer and a nematic liquid crystal. The PDLC film with a dimension of 5 10 cm2 was flexible and operated normally with no damage when it was bent with a radius of 2 mm. Instead of using conventional transparent conducting film, the single-layer-graphene transferred on PET film was used as transparent electrodes. The thickness of the graphene-PDLC was about 210e220 mm. The single-layer-graphene grown by thermal chemical vapor deposition was transferred onto the PET film, and its sheet resistance was about 1.2 kU/,. The controllable transmission range between the on and off states was about 60% in the visible range. The response time for the turnon and off processes were estimated to be 0.3 and 32 ms, respectively. This successful fabrication of graphene based PDLC is a crucial step toward paving the way for the commercialization of the emerging material, graphene.
3차원 홀로포테이션 서비스를 위한 중계서버 시스템 구축
김명균 ( Myeong-kyun Kim ),김유라 ( Yura Kim ),이승호 ( Seungho Lee ),김성제 ( Sungjei Kim ),김제우 ( Je Woo Kim ) 한국정보처리학회 2019 한국정보처리학회 학술대회논문집 Vol.26 No.2
본 논문은 3차원으로 복원된 데이터를 원격지에 있는 홀로렌즈에 실시간으로 전달하기 위해 개발된 계서버 시스템을 제안한다. 원격지에 있는 홀로렌즈를 위한 실시간 전송 시스템 구축을 위해서는 복원된 3차원 데이터의 압축 스트림을 복호화 해주는 중계서버 시스템이 필요하다. 이와 같은 3차원 데이터의 구조와 원격지에서 데이터를 전달 받는 홀로렌즈 환경을 고려하여 중계서버 시스템을 설계하고 구축 했다.