LCD SensorPanel - is it possible to blank the display on a locked PC, or when the monitor sleeps?

[andsoitgoes]

Pretty much the title - I've gotten a setup going where my LEDs turn off when I lock my PC, I'm hoping to be able to blank the LCD display I have set up, is that at all possible?

[JariKoi]

Most likely, your monitor is powered by a USB bus. I don't know what motherboard you have, but if it's Asus, here are the instructions. In the same way also with other brands.  

Or if you mean when the machine is powered on, then from the power management of your machine.