TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The luminophore has average particle size of more than 0.4 mu m, preferably more than 0.3 mu m at a wavelength of 400 nm, preferably 80-300 nm. The luminophore includes rare earth and/or manganese doped aluminate, europium doped borophosphate, europium doped halophosphate, borate of cerium doped rare earth, rare earth oxysulfide doped with europium, europium doped rare earth vanadate and manganese doped zinc compound. The composite does not comprises typical quantum dot particles. The luminophore is obtained by separation of the solid product of the liquid phase starting from a suspension of barium aluminate and substantially single-crystal particles of magnesium having average size of 80-400 nm. The average particle size of barium aluminate and magnesium is 100-200 nm. The luminophor is barium-magnesium-aluminate of formula (a(Ba(1-d)M1dO)b(Mg(1-e)M2eO)c(AI203)) (I). The aluminate particles are in the well separated and individualized form. The particles of aluminate have d50 ratio/average size of less than 2 determined by X-ray diffraction. The particles of aluminate have dSQ ratio/average diameter of less than 2 measured by MET method. The film thickness is 25-800 microns.M1 = rare earth, preferably gadolinium, terbium, yttrium, ytterbium, europium, neodymium and dysprosium;M2 = zinc, manganese or cobalt;a = 0.25-2, preferably 1;b = 0-2, preferably 2;c = 3-9, preferably 8;d = 0-0.4; ande = 0-0.6.Preferred Method: Aluminate is obtained by forming liquid mixture in the form of solution, suspension or gel containing aqueous compound of aluminum and other element used in composition of aluminate in the form of inorganic salt, hydroxide or carbonate, drying the obtained mixture by atomizing, calcining the obtained dried product to obtain crystalline phase, subjecting the obtained calcined product to wet grinding to obtain aluminate slurry, and performing solid-liquid separation to obtain aluminate as powder from the suspension. The method does not undergo flux calcination. EXAMPLE - No suitable example given.