Dim Block

Dim Block is a simple application that stops your screen from dimming with one click. It is very easy to use and has a features for stop blocking dim on low battery and one-click opening of display settings.
The application has a widget that you can put on your home screen.
Dim Block application really helps a lot while reading, watching images, photos or just while you showing something on your device for a few minutes. And it is totally free!