OPTICAL MODULATOR AND PROJECTION TYPE DISPLAY DEVICE USING THE SAME

摘要

The distance Wp from the end of a opposite substrate 400 to the inner peripheral edge of a cover portion 95 in a frame 91 is set to be smaller than the distance W1 from the end of the opposite substrate 400 to the inner peripheral edge of a first light-shielding portion 31 (Wp < W1). Therefore, there is no fear that incident light, which is incident from the outside (&thetas;o side) of the inner peripheral edge of the cover portion 95 may be blocked by the cover portion 95, and incident light reliably enters the entire image area, which makes it possible to prevent the peripheral portion of a projection image from becoming dark, and to thereby improve the quality of the projection image.