| 摘要 |
A phosphor as a divalent europium-activated oxynitride green light emitting phosphor which is aβ-type SiAlON substantially represented by a general formula (A): EuaSibAlcOdNe (where a, b, c, d, and e are numbers satisfying 0.005≰a≰0.4, b+c=12, and d+e=16), and having an average particle size (d1) (determined by an air permeability method) of 9 to 16μm, a median diameter (50% D) in particle size distribution of 12.5 to 35μm, 50% D/d1 of 1.4 to 2.2, and an absorptance at 600 nm of not more than 8.0%, and a light emitting apparatus, a BL light source apparatus, and a liquid crystal display device using the same are provided, to provide a light emitting apparatus with a high efficiency and a stable characteristic and a liquid crystal display apparatus using the same by using theβ-type SiAlON having controlled dispersibility and improved transparency. |
