end caps it has been found that bowing of the substrate 14 within the rectangular frame 12 of the privacy screen stiffens the substrate and frame and also provides a look which is pleasing to the eye depending upon the material being used as the substrate as well as the size of the privacy screen 10 an intermediate support member can be provided at the back of the privacy screen this support opposes any tendency of the vertical members of the frame 12 to bow outwardly and also forms an interior handle for sliding the privacy screen the sheet substrate when made of a translucent plastic is lightweight provides effective visual privacy and also blends with the existing panel system making it suitable for retrofit applications the privacy screen can be made in different heights to suit different panel sizes the most common panel heights are approximately 51 inches and 66 inches the mounting arrangement and positioning of the slides to one side of the panel allows off module connection and even mounting from across a junction between two panels with this arrangement there is no requirement to have a panel of a specified width for a given privacy screen the privacy screen is preferably of a width of about 36 inches other lightweight substrates can also be used to provide a desired look while providing the workstation with visual privacy when desired the privacy screen can also function to reduce noise to or from the workstation the privacy screen is easily adapted to office panel systems of different.