GROUP OF PHOSPHOR PARTICLES, LIGHT-EMITTING DEVICE USING SAME, AND LIQUID CRYSTAL TELEVISION RECEIVER

摘要

Provided is a phosphor particle group of divalent europium-activated oxynitride green light emitting phosphor particles (1) each of which is a ²-type SiAlON represented by a general formula: Eu a Si b Al c O d N e , where 0.005‰¤a‰¤0.4, b+c=12, d+e=16, wherein a mean value of a value obtained by dividing a longer particle diameter by a shorter particle diameter is not greater than 1.75. Also provided are a light emitting apparatus (11) using the phosphor particle group in a light converter (13), and a liquid crystal display television using the light emitting apparatus (11). With these, a high-efficiency and stable light emitting apparatus using a ²-type SiAlON, and a phosphor particle group therefor are provided.