Screen going black after a few seconds . . having to hit power button to turn it on .

[protomind]

My screen goes dark after a few minutes, which is totally fine, I am glad that is does. The problem is that to get it back I have to hit the power button on top of the phone to make it come back on. What I would really like is to be able to "wake" the screen by touching it or hitting one of the lower buttons to wake it. It is a royal pain in the arse having to always hit this power button. Any solutions would be very welcome, especially one that would let me wake the screen with a simple touch to the screen.