BEF For TV And Laptop Repair

BEF, full name Brightness Enhancement Film, is based on the core principle of improving display brightness through effective management of light. Its surface has a microscopic prism array structure, which is usually micro-replicated on the PET surface with UV curing glue. ​
When light is emitted from the backlight of the display device, it is uniformly divergent light in all directions. BEF uses the refraction and reflection of light to correct the direction of light through the prism structure. On the one hand, it can focus the light to the front, making the light more concentrated within the front viewing angle, thereby improving the front brightness; on the other hand, for the unused light outside the viewing angle, BEF will recycle and utilize it after refraction and reflection, and reintroduce it into the effective viewing angle. For example, among the light emitted from the lower diffuser, the light that originally had a small viewing angle and could enter the eyes of the normal viewer will be concentrated in a smaller angle range after passing through the BEF brightening film, while the light with a larger viewing angle will be reflected back to the backlight system by the micro-prism, and finally emitted in a suitable angle range after circulation, which greatly improves the utilization efficiency of light and achieves the effect of increasing display brightness without increasing additional power consumption.

High brightness improvement: A single BEF brightening film can significantly increase the screen brightness, generally increasing the screen brightness by up to 60%. If two pieces are used orthogonally, the front brightness can be increased by about 100%, bringing users a clearer and brighter visual experience. For example, after applying the BEF brightening film in the LCD display, the color of the picture is more vivid, the text is clearer and sharper, and the screen content can be clearly seen even in a strong light environment. ​
Energy-saving advantage: The BEF brightening film improves the efficiency of the backlight source by optimizing the utilization of the backlight source light, thereby achieving energy saving. When achieving the same brightness effect, display devices using BEF brightness enhancement film can reduce the power consumption of the backlight source. For battery-powered devices such as laptops, tablets and mobile phones, it can effectively extend the battery life; for large display devices such as LCD TVs, long-term use can save a lot of electricity, which is in line with the concept of environmental protection and can reduce the cost of use for users. ​
Ultra-thin design: The thickness of BEF brightness enhancement film is only about 155 microns, which will hardly have a significant impact on the overall thickness of the display device. It can meet the design requirements of modern display devices for thinness and lightness, making the product more light and fashionable in appearance without affecting the compact layout of its internal structure. ​

Suitable for most common display devices, it can provide a stable and reliable brightness enhancement effect, meet the basic needs of general users for display brightness, and is the most widely used in the market.
Anti-interference series: This series of products effectively reduces the occurrence of light interference through special design and technology, further improves the quality of the display, makes the image clearer and more stable, and does not cause stripes and ghosting due to light interference. 

While improving the brightness, it focuses on improving the viewing angle performance of the display device, so that viewers can obtain relatively consistent brightness and color performance at different angles, avoiding the problems of brightness reduction and color distortion when traditional display devices are viewed at a wide angle. It is suitable for occasions where multiple people need to watch at the same time, such as conference displays, educational electronic whiteboards, et