Display device and projection device

A display device comprising:

• a light source unit that emits light;
• a first display element having a first optical modulator that modulates and reflects incident light;
• a second display element having a second optical modulator that modulates and reflects incident light;
• a light separating and synthesizing member that (i) separates the light emitted from the light source unit into first light and second light having different wavelength regions, (ii) emits the first light toward the first display element, (iii) emits the second light toward the second display element, and (iv) synthesizes the first light that has been reflected and modulated by the first display element and the second light that has been reflected and modulated by the second display element;
• and
• a light absorbing member that covers a part of the first display element except for the first optical modulator, wherein the light absorbing member absorbs a part of the second light that has been modulated and reflected by the second display element and is directed toward the first display element, wherein
• the light absorbing member includes a mask member,
• the mask member includes a plate and a film on the plate, and
• the film of the mask member has a light transmittance of 20% or less in a wavelength region of light ranging from 420 nm to 630 nm inclusive.