Patent ID: 8466620

Claim:
A bi-color license plate frame, for surrounding a license plate of a vehicle, comprising: a) a rectangular body comprising an aperture that is adapted to show the license plate, and a wall defining a hollow frame space inside the wall; b) a plurality of light-emitting elements contained in the frame space; and c) a controller that is electrically connected to the light-emitting elements and that controls the light intensity of the light-emitting elements; wherein the wall of the rectangular body is translucent to the light of the light-emitting elements, and comprises a light diffusion layer, whereby surface illumination is provided when the light-emitting elements are turned on, wherein the controller comprises an ambient light sensor that measures the intensity of ambient light, wherein the controller further comprises a brake sensor that is adapted to receive braking signal from the vehicle, wherein the controller controls the light intensity of the light-emitting elements according to the received braking signal, wherein when the ambient light sensor indicates that it is night time and the brake sensor indicates that that the brake is not stepped on, the controller set the light intensity at a first magnitude, wherein when the ambient light sensor indicates that it is night time and the brake sensor indicates that that the brake is stepped on, the controller set the light intensity at a second magnitude, wherein the first magnitude is lower than the second magnitude.