Patent ID: 7804559

Claim:
A display device comprising: a first light-transmitting substrate; a second light-transmitting substrate; a display element sandwiched between the first light-transmitting substrate and the second light-transmitting substrate; a first polarizing plate having a first transmission axis and a second polarizing plate having a second transmission axis; and a third polarizing plate having a third transmission axis and a fourth polarizing plate having a fourth transmission axis, wherein the first polarizing plate and the second polarizing plate are stacked outside the first light-transmitting substrate, wherein the third polarizing plate and the fourth polarizing plate are stacked outside the second light-transmitting substrate, wherein the second transmission axis is displaced so as to correspond to a minor-axis direction of an ellipse of elliptically-polarized light emitted from the first polarizing plate, and wherein the third transmission axis and the fourth transmission axis are in a parallel nicol state.