Privacy filter for LCD monitors blacks out image to prevent unauthorized viewing. Design helps ensure the privacy of on-screen data on your 17" LCD monitor. Microlouver technology creates a narrow viewing angle so the image is only visible to those directly in front of the screen. Side view is black. Filter overlays LCD surface for a "built-in" look and protects your delicate LCD surface from damage. Filter also eliminates glare and increases contrast. Privacy filter is easily removed.Privacy filter for LCD monitors blacks out image to prevent unauthorized viewing. Design helps ensure the privacy of on-screen data on your 17" LCD monitor. Microlouver technology creates a narrow viewing angle so the image is only visible to those directly in front of the screen. Side view is black. Filter overlays LCD surface for a "built-in" look and protects your delicate LCD surface from damage. Filter also eliminates glare and increases contrast. Privacy filter is easily removed.