Disk diffusion for applications LCD, method for its preparation and its use

摘要

"Records of dissemination for LCD applications, method for its preparation and its use.The present invention relates to disk diffusion for LCD applications covering at least a layer of polimetil - methacrylate diffusing light.Containing a matrix of polimetil - methacrylate and 0.5% by weight up to 59.5% by weight relative to the weight of the layer of polimetil - methacrylate diffusing light, a spherical particle diffuser (a)With average size of the particles V, ~ 50 ~ in the range 0.1 to 40 109 m and a difference of index of refraction to matrix of polimetil - methacrylate in the range of 0.02 to 0.2 and 0.5% by weight up to 59.5% by weight relative to the weight of the layer of polimetil - methacrylate diffusing light.A spherical particle (b) with average size of the particles V ~ 50 ~ in range of 10 to 150 109 m and a difference of index of refraction to matrix of polimetil - methacrylate in the range of the TAIs 0.2, and the total concentration of the particles spherical diffusion (a) and particles (b) is in the range of 1 to 60% by weight,Relative to the weight of the layer of polimetil - methacrylate diffusing light, and the spherical particle distribution (a) and (b) spherical particle with different average size of particles V ~ 50 ~,And the disc diffusion have a transmission in the range of 20% to 70% and a power distribution greater than 0.3 and the proportion of the square average roughness of surface of the layer of polimetil - methacrylate R ~ Z ~ to the cube of the particle size of spherical particles (b) R ~ Z ~ n 2u00ac / D ~ Pb ~ n 3u00ac is situated in FAIXA to 0.0002 109 mu00ac - 1u00ac until 01300 109 mu00ac - 1u00ac.