title: Surface-controlled patterned vertical alignment mode with reactive mesogen.
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.
authors.affiliation: Department of Information Display Engineering, Hanyang University, Seoul, Korea.
authors.forename: You-Jin
authors.initials: YJ
authors.lastname: Lee
authors.forename: Young-Ki
authors.initials: YK
authors.lastname: Kim
authors.forename: Soo In
authors.initials: SI
authors.lastname: Jo
authors.forename: Jin Seog
authors.initials: JS
authors.lastname: Gwag
authors.forename: Chang-Jae
authors.initials: CJ
authors.lastname: Yu
authors.forename: Jae-Hoon
authors.initials: JH
authors.lastname: Kim
mesh_terms: D017076:Computer-Aided Design; D004566:Electrodes; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008029:Lighting / Q000295:instrumentation*; D050866:Liquid Crystals / Q000737:chemistry*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013499:Surface Properties; D014466:Ultraviolet Rays