Surface-controlled patterned vertical alignment mode with reactive mesogenopen access
- Authors
- Lee, You-Jin; Kim, Young-Ki; Jo, Soo In; Gwag, Jin Seog; Yu, Chang Jae; Kim, Jae Hoon
- Issue Date
- Jun-2009
- Publisher
- Optical Society of America (OSA)
- Citation
- Optics Express, v.17, no.12, pp.10298 - 10303
- Indexed
- SCOPUS
- Journal Title
- Optics Express
- Volume
- 17
- Number
- 12
- Start Page
- 10298
- End Page
- 10303
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/176638
- DOI
- 10.1364/OE.17.010298
- ISSN
- 1094-4087
- Abstract
- We proposed a patterned vertical alignment (PVA) mode controlled by a modified surface with ultraviolet (UV) curable reactive mesogen (RM) mixed with vertical alignment material for a liquid crystal display (LCD) with fast response time. In the surface-controlled PVA (SC-PVA) mode, the RM monomers in the alignment layer are polymerized along the LC directors by UV exposure under an applied voltage. The polymerized RMs produce a pretilt against the substrate normal depending on the applied field direction in the patterned electrode configuration. In such SC-PVA mode, fast response time was achieved at whole grey levels with the predetermined rotational preference of the LC directors governed by the pretilt direction.
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