Liquid crystal display device having scattering white layer and color filter

摘要

The liquid crystal display device comprises a first liquid crystal layer containing a dichroic dye, a second liquid crystal layer having light scattering properties, and a color filter provided in one of the substrates, wherein the first and second liquid crystal layers Are arranged in layers and are superimposed on each other between the substrates.;For example, the threshold voltage of the first liquid crystal layer is lower than the threshold voltage of the second liquid crystal layer (V_One V₂) Therefore, when the voltage supplied to the liquid crystal is lower than the threshold voltage (V 1) of the first liquid crystal layer, light is absorbed by the dichroic dye to form a black spot on the display surface. When the voltage supplied to the liquid crystal is higher than the threshold voltage V1 of the first liquid crystal layer and lower than the threshold voltage V2 of the second liquid crystal layer, the second liquid crystal layer becomes white and cloudy, Thereby forming a white point on the display surface. When the voltage supplied to the liquid crystal is higher than the threshold voltage (V2) of the second liquid crystal layer, the light passes through both the first and second liquid crystal layers, and the color filter can be seen directly.