Sorry, no pictures yet.
The sunglasses are mostly as usual ones - they reduce ambient light and sunlight. But they do not reduce the light from smartphone/laptop screen. As the result the picture on smartphone/laptop screen is more contrast and visible when wearing such sunglasses.
Benefits:
1. Better image on smartphone/laptop screen.
2. Possible to reduce britness of the screen. It will increase battery life (due to lesser discharge) and lifetime (due to lesser charge-discharge cycles).
3. OLED displays can be more durable due to lower display brightness.
How to implement:
1. Filter light by wave length.Now it is possible to increase contrast 3 times.
2. Filter light by time. It will require impulses from the screen (e. g. 1000 Hz) and the sunglasses open and closes according to impulses from display.
3. Filter by polarization. I think it is possible to increase contrast 2 times or more.
