The relationship between the liquid crystal (LC) alignment and the density of the silicon oxide alignment layer was studied by theoretical and experimental approaches. The thin films were deposited by various methods and conditions, and then their densities were analyzed by x-ray reflectivity measurement. The alignment of LC was highly dependent on their densities, which we found to be closely related to the number of interacting dipoles. Ultimately, a -SiO x thin film with lower density gives rise to the uniform vertical alignment of liquid crystal.
Bibliographical noteFunding Information:
This work was supported by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MEST) (Grant No. 20090079876) and also was financially supported by Samsung Electronics, Co., Ltd.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)