Display device and control circuit

A control circuit controlling a display device, the display device configured to be installed in a vehicle, wherein

• the display device includes:
• a display including a first surface on which a rear image of the vehicle is configured to be displayed and a second surface positioned opposite to the first surface;
• and
• a reflectance control device positioned on a first surface side of the display and configured to change a reflectance of incident light,
• the reflectance control device includes a first part and a second part, the first part being positioned in a first region overlapping the display surface when viewed in a normal direction, the normal direction being normal to the first surface, the second part being positioned in a second region surrounding the first region when viewed in the normal direction of the first surface, and
• the control circuit is configured to:
• control the reflectance of the reflectance control device and a video displayed on the first surface;
• and
• control the reflectance control device such that a second reflectance of the second part is lower than a first reflectance of the first part when the rear image of the vehicle is not displayed on the first surface.

A display device configured to be installed in a vehicle, the display device comprising:

• a display including a display surface on which a rear image of the vehicle is configured to be displayed;
• a reflectance control device positioned on a display surface side of the display and configured to change a reflectance of incident light;
• and
• a control circuit configured to control the reflectance of the reflectance control device and a video displayed on the display surface, wherein
• the reflectance control device includes a first part and a second part, the first part being positioned in a first region overlapping the display surface when viewed in a normal direction, the normal direction being normal to the display surface, the second part being positioned in a second region surrounding the first region when viewed in the normal direction of the display surface,
• the control circuit receives at least one of first illuminance information from a first illuminance sensor detecting an illuminance of a front of the vehicle or second illuminance information from a second illuminance sensor detecting an illuminance of a rear of the vehicle,
• the control circuit controls the reflectance control device such that the second reflectance of the second part is set to a first reflectance setting when the illuminance of the rear of the vehicle based on the second illuminance information is lower than a first illuminance threshold,
• the control circuit controls the reflectance control device such that the second reflectance of the second part is set to a second reflectance setting being lower than the first reflectance setting when the illuminance of the rear of the vehicle based on the second illuminance information is equal to or higher than the first illuminance threshold.