source: Active shutter 3D systems are used to present 3D films in some theaters, and they can be used to present 3D images on CRT, plasma, LCD and other types of video displays.
target: Active shutter 3D systems are used to present 3D films in some theaters. These films can be used to present 3D images on CRT, plasma, LCD and other types of video displays.
references: Active shutter 3D systems are used to present 3D films in some theaters. These films can be used to present 3D images on CRT, plasma, LCD and other types of video displays.