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Rotational Viscosity Coefficient (γ1) Measurement System  Model LCM-2

Measurement of transient current of liquid crystal cells has attracted attention because of increasing demand for practical realization of IPS and FFS modes, realization of low viscosity for high-speed display of VA panel, and measurement of panel resistance and impurity ions. Conventional measurement of rotational viscosity (g1) requires use of a magnetic field application unit and can only be conducted for a bulk sample. However, this model can measure data necessary for the calculation of the rotational viscosity (g1) of liquid crystal cells (electric current and time at director switching peak or impurity ion peak) without magnetic field unit. Therefore the rotational viscosity can be measured at various temperatures.

This system can measure the rotational viscosity of not only liquid crystals having positive dielectric constant anisotropy (De) but also those having negative anisotropy. Also, voltage holding ratio, ion density, and residual DC voltage can be measured.
  • Rotational Viscosity Coefficient(γ1) measurement for negative dielectric anisotropy LC mixture by considering the flow effect can be realized
  • γ1 measurement for positive dielectric anisotropy LC mixture is also available
  • Voltage Holding Ratio, Ion density, and Residual DC voltage measurement can be available.
  • Applying for CE marking
  • Number of Channels : Up to 16 channels
  • Applying voltage : Up to 400 volts
  • Designing of special jig for customers’ test cell can be available
  • Automatic temperature control & sequential measurement can be realized