Device for seeing through an obstacle

A device for seeing through an obstacle, configured to display a blind spot image of a blind spot area when a user cannot see the blind spot image obstructed by the obstacle, the device comprising:

• a first composite polarizing film, disposed between the user and the obstacle and disposed adjacent to the obstacle, having a first side facing the blind spot area and a second side facing away from the blind spot area, which includes:
• a first reflective polarizing layer, disposed adjacent to the first side, wherein when a target incident light passes through the blind spot area and is projected onto the first side, the first reflective polarizing layer is configured to split the target incident light into a target reflected light and a target transmitted light with opposite polarization directions, then the target reflected light is reflected from the first side, and the target transmitted light is transmitted from the second side and projected onto a viewing position of the user;
• and
• a first absorptive polarizing layer, disposed adjacent to the second side, wherein when an interference incident light which is away from the blind spot area is projected onto the second side, the first absorptive polarizing layer is configured to split the interference incident light into an interference transmitted light and an absorbed light with opposite polarization directions, then the interference transmitted light is transmitted from the first side, and the absorbed light is absorbed;
• and
• a second composite polarizing film, disposed between the first composite polarizing film and the obstacle, parallel to the first composite polarizing film, wherein when the target reflected light is projected onto the second composite polarizing film, the second composite polarizing film is configured to reflect the target reflected light at the viewing position, and to absorb the interference transmitted light projected onto the second composite polarizing film,
• wherein when the target transmitted light and the target reflected light are projected onto the viewing position, they together form the blind spot image to been seen by the user.