Multi-Domain Vertical Alignment (MVA) technology differs from both the TN and IPS systems. In the VA system, the liquid crystal molecules are aligned perpendicular to the substrates when no voltage is applied, therefore producing a black image. When voltage is applied, by an electric field, liquid crystal molecules are tilted parallel to the substrate, resulting in a high transmittance of source light.
With no voltage, all the liquid crystal molecules, including those at the boundaries with the substrates, are completely “Vertically Aligned”.
In this state, the polarised light passes through the cell without interference by the LC molecules and is then blocked by the front crossed polariser. Because the blockage is complete, the quality of black produced in this way is excellent and the viewer sees this black from all viewing angles.