| 초록 |
As an alternative of rubbing method, photoalignment has been extensively developed to fabricate an alignment layer for liquid crystal display owing to its various advantages such as no contamination problem, possibility of multi-domain structure, and low temperature process. However, it is usually accepted that most photoalignment methods result in the low pretilt angle, limiting control of the tilted-up direction of liquid crystals compared to that of the rubbing methods. In this work, we demonstrate a simple and convenient peel-off of photoreactive oligomer to increase the pretilt angle in liquid crystal device. Photoreactive cinnamate oligomer allows much higher pretilt angle and shows the effective peel-off phenomenon compared to conventional photocurable polymer. |
