Advanced Honda Window Tinting Patent Shown The Japanese marque Honda recently patented an advanced self-tinting window, which is touch-sensitive and could be used on any vehicle, reports Auto Guide. The window works when a user touches it and drags their finger down to a desired point, tinting only that section of the window. Alongside being a massive convenience to adjust the tint when required, this could spell the end of flip-down sun visors, as it could be used on a vehicle's windshield. Potentially the only downside of the self-tinting window is that it can only be altered when the vehicle is stationary. Nevertheless, the idea is certainly intriguing but it isn't yet known if or when Honda will make it a reality. I wonder how they'll get around window tint laws that vary from state to state.