PHOSPHOR BLENDS INCLUDING ONE OR MORE SILICATE PHOSPHORS, CAPABLE OF HAVING A COLOR GAMUT SUITABLE FOR THE APPLICATION OF A BACKLIGHT

摘要

PURPOSE: A silicate phosphor blend is provided to enable the orientation of a fluorescent band by changing composition, to have a wide application range, and to obtain a wider band than a single silicate phosphor.;CONSTITUTION: A silicate phosphor blend includes three or more phosphors which are marked as a chemical formula 1. The chemical formula 1 is Ba_wSr_xCa_ySiO_4: zEu. In the chemical formula 1, the sum of w, x, y, and z is 2. The silicate phosphor emits light green, yellow light, and orange light. The weight ratio of a green phosphor, a yellow phosphor, and an orange phosphor is 1.8 - 4.0 : 0.1 - 4.0 : 0.8 - 3.0, respectively.;COPYRIGHT KIPO 2010