Luminance. Luminance is heavily minimized to off-axis snoopers without impacting image quality for the head-on user.
Display transmission with angle. Ambient light sources are polarized and pass through the LC layer and retarder film. Off-axis rays are reflected at the reflective polarizer while on-axis rays are transmitted.
Display reflectivity. On-axis rays have low reflectivity while off-axis rays that are directed at a snooper have high reflectivity — resulting in a degraded image that protects whatever sensitive information may be present on the screen.
Luminance. Off-axis users experience high brightness and clearly visible images while the head-on user sees no change to image brightness, resolution, or contrast.
Display transmission with angle. Ambient light sources are polarized and pass through the LC layer and retarder film. There is a minimal impact on display transmission with angle, so both on-axis and off-axis rays are transmitted.
Display reflectivity. Display reflectivity is dominated by front-surface reflections.