We have investigated the electro-optical characteristics of amorphous (a)-twisted nematic (TN)-liquid crystal display (LCD) on two kinds of the polyimide (PI) surfaces. We obtained that the LC aligning capabilities is strongly dependent on molecular structure of the polymer. Also, we found that the domain size of a-TN-LCD on PI surface having CONH moiety is small compared to a-TN-LCD on PI surfaces with side chain. Also, we observed that the response time of a-TN-LCD on PI surfaces having CONH moiety is slow compared to a-TN-LCD on PI surfaces with side chain. It is considered that the response time of a-TN-LCD results from a surface effect between the substrate surface and the LC molecules. Finally, we obtained that the viewing angle of a-TN-LCD increases with decreasing the domain size.
|Number of pages||10|
|Journal||Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals|
|Publication status||Published - 1999|
Bibliographical noteFunding Information:
This research was supported in part by Grant of Development of Advanced Technology for Flat Panel Displays of the Ministry of Science and Technology and Ministry of Trade, Industry and Energy of Korea.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics