| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
| 권호 |
34권 2호 |
| 발표분야 |
액정/LCD 재료 |
| 제목 |
Nanoimprint lithography using a periodical microgrooved structure for liquid crystal alignment |
| 초록 |
Several alignment techniques have been proposed as alternatives of rubbing technique. Among them, a nanoimprinting lithography (NIL) technique has been also considered as candidate for rubbing process. Periodical microgroove with 200nm pitch was fabricated on prepared CYTOP surface using thermal imprinting method. LC was successfully aligned on grating surface. Oxygen plasma treatment was introduced in order to control the pretilt angle. Plasma treatment time affect the contact angle of CYTOP to result in the pretilt angle. Surface pattern morphology was characterized by AFM, LC alignment was characterized by polarized UV spectrometer. LC device was prepared with nanoimprinted substrate. LC cell was characterized by using polarized optical microscopy and V-T characteristics. Stability of LC device with time was confirmed by VHR measurement. |
| 저자 |
김현진, 김현기, 최석원, 김성수
|
| 소속 |
경희대 |
| 키워드 |
nanoimprinting; alignment layer; pretilt angle; LCD
|
| E-Mail |
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