DBEF is a reflective polarizer that selectively reflects the light from the backlight system so that it is not absorbed by the lower polarizer of the LCD, allowing part of the light from the full viewing angle of the LCD to be reused. As a result, the axial brightness is increased by about 60
If combined with BEF, the brightness increase will have better performance.
DBEF series includes:
DBEF-M, by coating the diffusion layer, can prevent optical contact with other materials, and at the same time reduce reflection moire when used together with BEF, etc. The effect of the phenomenon;
DBEF-D, with diffuser sheets bonded on both sides, increases strength and improves thermal stability;
DBEF-D200, the structure is exactly the same as DBEF-D , only the thickness is thinner at 200μm.