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Optical enhancement of dye-doped PDLC by additional dye-LC layer coating

Title
Optical enhancement of dye-doped PDLC by additional dye-LC layer coating
Authors
Jung, JE[Jung, Jae Eun]Lee, GH[Lee, Gae Hwang]Jang, JE[Jang, Jae Eun]Hwang, KY[Hwang, Kyu Young]Ahmad, F[Ahmad, Farzana]Muhammad, J[Muhammad, Jamil]Lee, JW[Lee, Jin Woo]Jeon, YJ[Jeon, Young Jae]
DGIST Authors
Jang, JE[Jang, Jae Eun]
Issue Date
2011-11
Citation
Optical Materials, 34(1), 256-260
Type
Article
Article Type
Article
Keywords
Contrast RatioCrystal StructureDye-DopedDye-Doped PdlcHigh ProbabilityLiquid Crystal and PolymerLiquid CrystalsOptical EnhancementsOptical PropertiesOptical ShuttersPolymer Dispersed Liquid Crystal (PDLC)PolymersRandomly DistributedReflectionScatteringScattering EffectsSingle DyeSurface Scattering
ISSN
0925-3467
Abstract
Dye-doped PDLC has a high probability to be used as reflective optical shutter due to its good reflectance compared to normal PDLC or LC shutter structures. The black state can be significantly enhanced by the minimized surface scattering between polymer and LC surface, which makes a harmful result to the contrast ratio, one of most important factors for optical shutter. To remove this scattering effect, we have developed new combinational structure, consisted of guest dye-doped LC (DLC) and dye-doped PDLC (DPDLC). In the newly fabricated dye-doped PDLC structure, the front location of dye-doped LC layer can remove the light scattering effect of the surface of single dye PDLC structure. The proposed process can also remove the randomly distributed dyes in polymer area of dye PDLC. This technique enhances the reflectance as well as the contrast ratio. © 2011 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/20.500.11750/1706
DOI
10.1016/j.optmat.2011.08.027
Publisher
Elsevier B.V.
Related Researcher
  • Author Jang, Jae Eun Advanced Electronic Devices Research Group(AEDRG)
  • Research Interests
Files:
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Collection:
Information and Communication EngineeringETC1. Journal Articles


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