Abstract:
A phosphor as a divalent europium-activated oxynitride green light emitting phosphor which is a β-type SiAlON substantially represented by a general formula (A): EuaSibAleOdNe (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 16 μm, a median diameter (50% D) in particle size distribution of 12.5 to 35 μm, 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 the β-type SiAlON having controlled dispersibility and improved transparency.
Abstract translation:作为基本上由通式(A)表示的基本上由通式(A)表示的SiAlON的二价铕活化的氮氧化物绿色发光荧光体的荧光体:EuaSibAleOdNe(其中a,b,c,d和e是满足0.005&nlE的数; a,n = e,0.4,b + c = 12,d + e = 16),平均粒径(d1)(透气度法测定)为9〜16μm,中值粒径(50%D) 粒径分布为12.5〜35μm,50%D / d1为1.4〜2.2,吸收率为600nm以下为8.0%以下,发光装置,BL光源装置以及液晶显示装置 提供了使用它们以提供具有高效率和稳定特性的发光装置,以及使用具有受控分散性和改进的透明度的“SiAlON”的液晶显示装置。
Abstract:
The light-emitting device includes a substrate and a plurality of light-emitting sections. A first light-emitting section is made up of LED chips and a first fluorescent-substance-containing resin layer, and a second light-emitting section is made up of LED chips and a second fluorescent-substance-containing resin layer. The first fluorescent-substance-containing resin layer and the second fluorescent-substance-containing resin layer are provided in a plurality of locations such that the fluorescent-substance-containing resin layers for the different light-emitting sections are adjacently arranged.