A light control window, which forms a part of a vehicle body that defines a passenger compartment, comprising: a transmission section that transmits light; a frame body (31a, 31c) that surrounds the transmission section; and a light control sheet (10, 10A, 20) comprising a polarizing layer, wherein the light control sheet is positioned in the transmission section; the transmission section is provided with a plate member, the plate member having optical transparency, and including an inner surface facing the inside of the passenger compartment and an outer surface facing the outside of the passenger compartment, and the light control sheet is positioned on the inner surface such that the polarizing layer is sandwiched between the plate member and the light control layer; the light control sheet (10, 10A, 20) comprising: a pair of orientation layers including a first orientation layer and a second orientation layer; a light control layer (12, 22) sandwiched between the first and second orientation layers and containing a polymer network and a plurality of domains dispersed in the polymer network, the plurality of domains being filled with a liquid crystal composition containing liquid crystal molecules (12c1, 22c1) and dichroic dyes (12c2, 22c2); a pair of transparent electrodes (13a, 13b) sandwiching the pair of orientation layers; and the polarizing layer positioned on the opposite side of the first orientation layer to the light control layer, wherein the transmittance of the light control layer increases upon application of a driving voltage to the pair of transparent electrodes, and in a state in which the driving voltage is not applied between the transparent electrodes, the pair of orientation layers orient the liquid crystal molecules and the dichroic dyes horizontally to the pair of orientation layers and also such that absorption axes of the dichroic dyes is oriented so as to cross an absorption axis of the polarizing layer as viewed in a thickness direction of the light control layer, characterised in that the plate member has a shape with a curvature; the polarizing layer has a thickness of 25 μm or more and 120 μm or less. a transmission section that transmits light; a frame body (31a, 31c) that surrounds the transmission section; and a light control sheet (10, 10A, 20) comprising a polarizing layer, wherein the light control sheet is positioned in the transmission section; the transmission section is provided with a plate member, the plate member having optical transparency, and including an inner surface facing the inside of the passenger compartment and an outer surface facing the outside of the passenger compartment, and the light control sheet is positioned on the inner surface such that the polarizing layer is sandwiched between the plate member and the light control layer; the light control sheet (10, 10A, 20) comprising: a pair of orientation layers including a first orientation layer and a second orientation layer; a light control layer (12, 22) sandwiched between the first and second orientation layers and containing a polymer network and a plurality of domains dispersed in the polymer network, the plurality of domains being filled with a liquid crystal composition containing liquid crystal molecules (12c1, 22c1) and dichroic dyes (12c2, 22c2); a pair of transparent electrodes (13a, 13b) sandwiching the pair of orientation layers; and the polarizing layer positioned on the opposite side of the first orientation layer to the light control layer, wherein a pair of orientation layers including a first orientation layer and a second orientation layer; a light control layer (12, 22) sandwiched between the first and second orientation layers and containing a polymer network and a plurality of domains dispersed in the polymer network, the plurality of domains being filled with a liquid crystal composition containing liquid crystal molecules (12c1, 22c1) and dichroic dyes (12c2, 22c2); a pair of transparent electrodes (13a, 13b) sandwiching the pair of orientation layers; and the polarizing layer positioned on the opposite side of the first orientation layer to the light control layer, wherein the transmittance of the light control layer increases upon application of a driving voltage to the pair of transparent electrodes, and in a state in which the driving voltage is not applied between the transparent electrodes, the pair of orientation layers orient the liquid crystal molecules and the dichroic dyes horizontally to the pair of orientation layers and also such that absorption axes of the dichroic dyes is oriented so as to cross an absorption axis of the polarizing layer as viewed in a thickness direction of the light control layer, characterised in that the plate member has a shape with a curvature; the polarizing layer has a thickness of 25 μm or more and 120 μm or less.