Patent ID: 11945369
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 8:
9. A control circuit controlling a display device, the display device installed in a vehicle, wherein
the display device includes
a display including a first surface on which video is displayed and a second surface positioned opposite to the first surface, the display being switched between ON and OFF; and
a reflectance control device positioned on a first surface side of the display and configured to change a reflectance for 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 display surface,
the control circuit is configured to
control the reflectance of the reflectance control device, the switching between ON and OFF of the display, and the video displayed on the first surface,
receive at least one of speed information indicating a speed of the vehicle or reverse information indicating whether the vehicle is reversing,
control a reflectance of the second part based on the at least one of the speed information or the reverse information, and

control the reflectance control device such that the reflectance of the second part is lower than a reflectance of the first part when the display is OFF.