DzSoft LightBar v1.1 Unsigned Retail by DSPDA™ .
Program allows easy and quickly display brightness control. Enable program, setup panel display for preferred programs.
Enable light sensor for sensitivity adjustment or disable for manual brightness control.
Don't forget enable light sensor before uninstallation.
P.S. Just turn off the light sensor, and activate the application. It is really useful application to control display brightness quickly.
How to use it?
As you can see in the screenshot, there is a panel with a slider on it.
Move your finger up to down in the top of the screen, and the panel will appear. Click the green-up-arrow to hide it.