- OXYNITRIDE ORANGE-RED FLUORESCENT SUBSTANCE AND LIGHT-EMITTING FILM OR LIGHT-EMITTING SHEET AND LIGHT-EMITTING DEVICE COMPRISING SAME

摘要

The present invention provides a light emitting film or light emitting sheet including a nitrogen oxide color-red fluorescent substance and a fluorescent substance thereof, and a light emitting device. NOx orange-formula of the red phosphor is M _m A _a Si _x N _y O _z:, and dR, which element M is Ca, Sr, and one or at least one element of Ba, A Element is Al or Al and Ga, Wherein La, Sc, and Y are mixed with one or more elements, and the R element is one or more elements of Ce, Eu, and Mn, 1.7, 3 y 4.2, 0 z 0.7, and 0.001 d 0.2. Nitrogen oxide color-red phosphors are activated by a radiation source to emit light of an orange-red color, and these phosphors can have satisfactory luminous efficiency and satisfy the demands of high color and low color temperature white LEDs .