Light modulation module, projector, and polarization unit

Abstract

A light modulation module includes: a panel module configured to modulate incident light; a polarization plate disposed to receive light emitted from the panel module; a heat dissipation substrate having thermal conductivity equal to or greater than thermal conductivity of the polarization plate; and a cold plate configured to cool the polarization plate via the heat dissipation substrate, in which the heat dissipation substrate has a first surface thermally coupled to the polarization plate, and a second surface opposite the first surface, and the cold plate includes an opening through which light passes, a coupling portion disposed around the opening and thermally coupled to the second surface, and a circulation portion through which a liquid refrigerant circulates.

Dependencies are inferred from the claim text.