We studied the nematic liquid crystal (NLC) aligning capabilities and electro-optic (EO) performance of fringe-field switching (FFS)-LCD using the Ultraviolet (UV) alignment method on a a-C:H thin film was deposited by an rf magnetron sputtering technique at room temperature. A good LC alignment by UV exposure on the a-C:H thin film was achieved. The LC pretilt angle on the a-C:H thin film is higher that on Diamond Like Carbon (DLC) thin film. It is considered that generation of pretilt angle increases due to increasing UV exposure generated the destruction of oriented rings of atoms related to LC alignment on inorganic thin films containing many CH bonding. The Electro-optical (EO) characteristics of the UV aligned FFS-LCD with obliquely UV exposure on the a-C:H thin film are almost the same as that of the rubbing aligned FFS-LCD on the PI surface. It is considered that strong UV energy gives rise to enough LC aligning capability on the a-C:H thin film.
|Number of pages||6|
|Publication status||Published - 2006|
|Event||2005 International Meeting on Ferroelectricity, IMF-11 - , Argentina|
Duration: 2005 Sept 5 → 2005 Sept 9
Bibliographical noteFunding Information:
This work was supported by National Research Laboratory program (M1-0203-00-0008).
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics