Backlit road traffic sign

A backlit road traffic sign, comprising a housing body, a control box, a main light-emitting device, and multiple warning light devices;

• wherein the housing body is configured as a flat structure and comprises a frame, a rear panel, a front panel, a light-blocking film, a reflective base film, and a reflective pattern film;
• wherein the rear panel is positioned on the rear side of the frame;
• wherein the front panel is made of light-transmitting material and positioned on the front side of the frame, with the front panel, the rear panel, and the frame collectively enclosing a sealed cavity;
• wherein the light-blocking film is made of non-light-transmitting material and attached to the back surface of the front panel, with multiple first through holes and multiple first slot holes for forming patterns formed through a front surface and a back surface of the light-blocking film, the multiple first through holes arranged around a periphery of the light-blocking film;
• wherein the reflective base film is made of a light-transmitting material and attached to a front surface of the front panel;
• wherein the reflective pattern film is made of a light-transmitting material and attached to a front surface of the reflective base film, with multiple second through holes and multiple second slot holes for forming patterns formed through a front surface and a rear surface of the reflective pattern film, the multiple second through holes arranged around a periphery of the reflective pattern film;
• wherein the control box is mounted on a back surface of the rear panel;
• wherein the main light-emitting device is disposed within the sealed cavity and electrically connected to the control box, light emitted from the main light-emitting device projected outward through the multiple first slot holes, the front panel, the reflective base film, and the multiple second slot holes sequentially;
• wherein the multiple warning light devices are arranged around the periphery of the sealed cavity and electrically connected to the control box, light emitted from the warning light devices projected outward through the corresponding first through holes, the front panel, the reflective base film, and corresponding second through holes.