Method for displaying rearward image of vehicle

A display control method for a display device mounted in a vehicle, the display control method comprising:

• varying a reflectivity level of an electro-optic layer within at least part of variable reflectivity levels of the electro-optic layer based on an intensity of light emitted on a part of a display device, when the electro-optic layer is in a downward posture, the electro-optic layer being visible from an outside of the display device through an opening of a housing of the display device, the electro-optic layer having the variable reflectivity levels of incident light to transmit a first part of the incident light, and to reflect a second part of the incident light, the at least part of the variable reflectivity levels being between a first reflectivity level and a second reflectivity level, the first reflectivity level being greater than the second reflectivity level, a first normal direction of the electro-optic layer extending outward from an inside of the housing through the opening of the housing in the downward posture;
• displaying a rearward image of the vehicle on a screen of a display, the rearward image captured by an image capture device, when the electro-optic layer is in an upward posture, the display provided between the electro-optic layer and a part of the housing of the display device, and coupled with the image capture device capturing the rearward image of the vehicle, a second normal direction of the electro-optic layer extending outward from the inside of the housing through the opening of the housing in the upward posture, the second normal direction of the electro-optic layer in the upward posture being oriented more upward than the first normal direction of the electro-optic layer in the downward posture;
• and
• nullifying the varying of the reflectivity level of the electro-optic layer within the at least part of the variable reflectivity levels of the electro-optic layer based on the intensity of light emitted on the part of the display device, when the electro-optic layer is in the upward posture.