3M privacy filter for 23.5" Widescreen Monitor Display wide black

Amazon

Microlouver technology delivers effective "black out" privacy from side views outside the 60-degree viewing angle, Reversible between a glossy side and glare-reducing matte Reduces 35 Percent of blue light transmission from the display, Helps reduce reflections so one see screen clearly with pristine image clarity Provides touch compatibility on some devices, Matte surface helps reduce glare and hide fingerprints Designed with enhanced microlouver technology, creating an ideal ideal-resolution viewing experience, Designed to seamlessly fit within the raised bezel of device

Zoro Tools

3M PF235W9B, 59.7 cm (23.5"), 16:9, Monitor, Frameless display privacy filter, Anti-glare, Privacy