Hello Barbara,I do not deny that there should be light along those dark roads. But the screens are not there to provide light, they are there to advertise.For one, if you have noticed, most street lamps face downwards, there may be two or three of them depending on the length of the pavement. As the street lamps face downwards, no light goes up and they do have a perimeter they illuminate - very much as our - better said - the human eye's field of vision. Neither do they illuminate the area as if they were the sun!
Ivonne Holliday ● 883d