Reading glasses are designed for your eyes to be most relaxed when you are looking at something "reading distance" away - your optician should have checked with this with you when you bought your specs.
Screen glasses, for use with computers, are designed to be used at a distance of about 2ft from the screen, again your optician should ask at what distance you sit from your monitor when setting the strength of the lenses.
Ideally you should have special specs for TV, set for the distance you sit from your TV but driving glasses will be better than reading glasses if you don't want to go to that bother and expense.
Driving glasses are designed for your eyes to be most relaxed when you are looking at things a long distance away.