What is Blu-ray?: Blu-ray in the presence of a large number of computer monitors, fluorescent lamps, mobile phones, digital products, display, LEDs and other light, the wavelength of blue light causes the amount of toxins in the macular area of the eye increases, a serious threat to the health of our eyes | Frosted surface:The frosted surface has anti-reflection and anti-reflection effects, and the glossy surface has high-definition transparency and scratch resistance; suitable for LCD, LED, 4K OLED and QLED HDTV displays and curved screens | PET anti-scratch coating: 3-layer PET material, Using layered design of blue light filtering technology, enhanced anti-blue light performance, anti-radiation, anti-static, relieve eye fatigue, help you sleep better | High light transmittance:restore the real scene, maintain clear and vivid HDTV image quality; After the film is attached, it relieves visual fatigue without affecting the original color and brightness of the screen | Compatibility: We have a variety of sizes to choose from (32-70 inch TV screen protector). Please measure the display (width and height) before ordering to ensure correct installation