If you are struggling with excessive glare on your television or computer screen, or if you want full privacy from neighbors, then you should be looking for room darkening window curtains (also known as light filtering curtains). While not full blackout, room darkening or light filtering curtains typically filter 70% to 80% of the natural light. Adding new window treatments to the room is a great way to enhance your room’s theme by adding color, patterns, and textures, or even simply bringing new life to a tired design.