Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1999.07d
- /
- Pages.1765-1767
- /
- 1999
Electro-optical (EO) characteristics of photo-aligned TN-LCD on PM4Ch surfaces
PM4Ch 표면을 이용한 광배향 TN-LCD의 전기광학특성
- Hwang, Jeoung-Yeon (Dept. of Electrical Eng., Soongsil University) ;
- Park, Sang-Gun (Dept. of Electrical Eng., Soongsil University) ;
- Park, Tae-Kyu (Dept. of Electrical Eng., Soongsil University) ;
-
Seo, Dae-Shik
(Dept. of Electrical Eng., Soongsil University)
;
-
Suh, Dong-Hack
(Dept. of Industrial Chemical, Hanyang University)
- 황정연 (숭실대학교 공과대학 전기공학과) ;
- 박상건 (숭실대학교 공과대학 전기공학과) ;
- 박태규 (숭실대학교 공과대학 전기공학과) ;
-
서대식
(숭실대학교 공과대학 전기공학과)
;
-
서동학
(한양대 공업화학과)
- Published : 1999.07.19
Abstract
We synthesised a photo-alignment material of PM4Ch (poly(4-methacryloylloxychalcone)). The electro-optical (EO) characteristics of photo-aligned twisted nematic (TN)-liquid crystal display (LCD) with linearly polarized ultraviolet (UV) light irradiation on PM4Ch surface were investigated. The uniform alignment of NLC with polarized UV light irradiation on PM4Ch surface was measured. Also, We had The excellent voltage-transmittance characteristics of photo-aligned TN-LCD. The low threshold voltage of photo-aligned TN-LCD was measured. Moreover, the fast response time of photo-aligned TN-LCD on PM4Ch was successfully achieved. Finally The reduction DC voltage of photo-aligned TN-LCD decreases with increasing the UV light irradiation time on photo-dimerized PM4Ch surface.
Keywords