The invention relates to a polarizing plate comprising at least a polarizing layer having a K value as defined by the following expression of from 0.25 to 0.75; K=(kx−kz)/(kx−ky) wherein axes which are orthogonal to each other in a plane of the polarizing layer are an x-axis and a y-axis; an axis which is orthogonal to an x-y axis plane is a z-axis; and kx, ky and kz are an absorption coefficient along the x-axis, y-axis and z-axis directions, respectively.