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Frameless display privacy filter 3M BP173W9B 43.9 cm 16:9
The 3M BP173W9B frameless display privacy filter is made for 17.3" (43.9 cm) laptops with a 16:9 aspect ratio. It limits the viewing angle to approximately 60° to protect on-screen information from side glances while preserving screen clarity. The filter supports LCD displays and includes anti-glare properties to reduce reflections during use.
Proprietary Nanolouver technology delivers a premium visual experience by balancing privacy with high transmission of the device's brightness. The filter allows up to 85% transmission of the screen brightness and on average provides about 25% more brightness than other black privacy filters on the market, maintaining clarity and reducing the need to increase display backlight.
Clean the laptop screen following the manufacturer's recommendations and remove any dust or fingerprints. Align the frameless filter to the edges of the 17.3" display and attach it according to the included mounting method (adhesive tabs or slide-on frame where applicable). Adjust the filter position so the image is centered and ensure secure attachment before regular use. For removal, lift gently from one corner and store the filter in a protective sleeve to avoid scratches.
To maintain optimal clarity and privacy, avoid touching the viewing surface directly; clean with a soft, lint-free cloth and a screen-safe cleaner. If you rely on maximum brightness in very dim environments, briefly remove the filter to compare visibility, as privacy filters reduce lateral viewing but still transmit the majority of backlight.
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