Patent ID: 9158140
Filing Date: 2015-10-13
Classification: G02F,G09G

Abstract:
1. A physical property measuring method for a TFT liquid crystal panel, comprising: an impedance setting step of setting the impedance between the source and drain of a TFT of the TFT liquid crystal panel to be less than or equal to a predetermined value; a voltage application step of applying a voltage that cyclically varies to a liquid crystal layer of the TFT liquid crystal panel and a potential of a source electrode of the TFT is maintained at ground potential; and a physical property measuring step of measuring a transient current flowing through the liquid crystal layer to which the voltage that cyclically varies is applied in the voltage application step to measure physical properties of the liquid crystal layer, wherein liquid crystal molecules in the liquid crystal layer are driven by an electric field formed by a pixel electrode driven by the TFT and a common electrode provided opposite to the pixel electrode, and the voltage that cyclically varies is applied as the voltage that cyclically varies to the common electrode in the voltage application step.