Display system and display device

A display system that is placeable in a vehicle, the display system comprising:

• an image capture device that captures a rearward image of the vehicle;
• a display device that is coupled to the image capture device, and receives at least a portion of the rearward image captured by the image capture device;
• and
• a first illuminance sensor and a second illuminance sensor,
• wherein the display device includes:
• a housing;
• a variable reflectance element configured to vary reflectivity of incident light, to transmit a portion of the incident light, and to reflect another portion of the incident light;
• a display configured to display at least the portion of the rearward image;
• a display device control circuit configured to control operation of the display device;
• and
• an actuator provided in the housing and configured to switch the variable reflectance element between a first posture and a second posture, wherein
• the display is configured to display at least the portion of the rearward image when the variable reflectance element is in the first posture,
• the display is configured not to display the rearward image when the variable reflectance element is in the second posture,
• the reflectivity of the incident light varies between at least two values including a first value and a second value based on a value of at least one of a first illuminance and a second illuminance when the variable reflectance element is in the second posture, the second value being larger than the first value,
• the reflectivity of the incident light is equal to or more than the second value when the variable reflectance element is in the first posture,
• the first illuminance indicates brightness around the vehicle and is detected by the first illuminance sensor,
• the second illuminance indicates intensity of light emitted on a front surface of the display device and is detected by the second illuminance sensor, and
• the display is visible to a driver of the vehicle through the variable reflectance element when the display displays at least the portion of the rearward image.