Projection display unit with detection function

Abstract

A projection display unit with a detection function includes a projection display section (110) and a detector (120). The projection display section (110) includes a display light source. The display light source emits light used as illumination light, and projects an image onto a projection surface with the illumination light. The detector (120) includes a detection light source that emits detection light. The detector (120) detects an object on or near the projection surface, and outputs a power-saving instruction signal to the projection display section (110) in accordance with a detection state of the object. The power-saving instruction signal instructs a transition to a power-saving mode. The projection display section (110) turns off the display light source in response to the power-saving instruction signal.

Dependencies are inferred from the claim text.