LCD Resolution (Root) is an Android application for our device with which we can change the LCD density and thus change the screen resolution of our device. To run this application you must have root permissions and busybox installed.
Obtain an effect similar to what happens on your PC when changing screen resolution. A simple bar allow us to change the dpi value and a window will show a preview of the changes.
LCD Resolution (Root) is available free at Android Market.
Android Market | LCD Resolution (Root)