Method of evaluating liquid crystal panel and evaluating device

A liquid-crystal-panel evaluating method for optically evaluating a liquid crystal panel including a liquid crystal layer comprising:

• making linearly polarized light including a first vibration plane be incident upon the liquid crystal panel;
• forming a polarized component of reflected light, formed by reflection of the incident light, including a second vibration plane substantially perpendicular to the first vibration plane, as detection light in order to evaluate the panel based on the detection light;
• and
• disposing reflecting means at a back side of the liquid crystal layer, and wherein the linearly polarized light including the first vibration plane is made to be incident upon the liquid crystal panel from a front side of the liquid crystal layer.

A liquid-crystal-panel evaluating device for optically evaluating a liquid crystal panel comprising:

• polarizing illumination means for illuminating the liquid crystal panel with polarized light in a predetermined state;
• detection light obtaining means for receiving specularly reflected light sent forth from the liquid crystal panel and increasing a ratio of a polarized component of the specularly reflected light transmitted through a liquid crystal layer of the liquid crystal panel in order to obtain detection light;
• and
• light detecting means for detecting the detection light;
• wherein the polarizing illumination means comprises a light source and polarizing means for obtaining the polarized light from the light emitted from the light source;
• wherein a polarized-light polarization axis of the polarizing means and a polarized-light absorption axis of the detection light obtaining means are substantially orthogonal to each other with reference to an optical axis.

A liquid-crystal-panel evaluating device for optically evaluating a liquid crystal panel including a liquid crystal layer comprising:

• polarizing illumination means for illuminating the liquid crystal panel with linearly polarized light including a first vibration plane;
• detection light obtaining means for receiving reflected light sent forth from the liquid crystal panel, and removing a polarized component of the reflected light including the first vibration plane in order to obtain detection light;
• and
• light detecting means for detecting the detection light;
• wherein the polarizing illumination means comprises a light source and polarizing means for obtaining the polarized light from the light emitted from the light source
• wherein a polarized-light polarization axis of the polarizing means and a polarized-light absorption axis of the detection light obtaining means are substantially orthogonal to each other with reference to an optical axis.