화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2007년 가을 (10/11 ~ 10/12, 일산킨텍스)
권호 32권 2호
발표분야 분자전자 소재 및 소자 기술(분자전자 부문위원회)
제목 SOLUBLE POLYIMIDES WITH PHOTOREACTIVE SIDE GROUPS AND THEIR APPLICATIONS IN LIQUID-CRYSTALS ALGNIMENT
초록 To overcome shortcomings in the rubbing process, some photo-induced LC alignment concepts have recently been reported as follows. One of the representative approaches is to utilize photoreactive moiety and its derivative which is incorporated into polymer as side group. The polymers are known to undergo a preferential orientation via a directionally selective photoreaction of such photoreactive groups by exposing to a linearly polarized ultraviolet light (LPUVL). However, these polyvinyl-based materials are not useful for the production of LCDs because of many unsolved problems, such as low thermal stability, low anchoring energy, low pretilt angle, limited processability with LPUVL. In this study, soluble photosensitive polyimide with photosensitive moiety as side groups was synthesized, and its photoreactivity and photoalignment characteristics were investigated. In addition, LC alignment behavior was examined on the polymer films exposed to LPUVL with varying exposure dose.
저자 민영훈1, 이택준2, 이문호2, 이승우1
소속 1영남대, 2포항공과대
키워드 Polyimide; Liquid Crystal Display; Alignment
E-Mail leesw1212@ynu.ac.kr