Advanced LED technologies are bringing increasing smart applications for automobile makers, especially for the rising market of new energy car. Tesla has recently applied a patent for its newly designed sunroof which integrated LED lighting and electrical tinting. The patent, titled “Advanced Sunroof Lighting System,” describes a sunroof consisting of multiple transparent layers including an electronic tint layer and a transparent lighting layer. By controlling the tint layer and lighting layer electronically, Tesla aims to monitor the light source inside the ca...