LIGHT-EMITTING DEVICE, WHITE LIGHT-EMITTING DEVICE, ILLUMINATOR, AND IMAGE DISPLAY

摘要

To achieve a light-emitting device emitting light with high brightness, closer to natural light, and less color shift due to a small change in intensity of emitted light, in a light-emitting device including a light source emitting light by driving current and at least one wavelength-converting material absorbing at least part of the light from the light source and emitting light having a different wavelength, the color coordinate x1(17.5) and the color coordinate y1(17.5) of the light emitted at a driving current density of 17.5 A/cm2 and the color coordinate x1(70) and the color coordinate y1(70) of the light emitted at a driving current density of 70 A/cm2 satisfy the following Expressions (D) and (E): −0.006≦̸x1(17.5)−x1(70)≦̸0.006  (D), −0.006≦̸y1(17.5)−y1(70)≦̸0.006  (E).