Light source apparatus and display apparatus

A light source apparatus, comprising:

• a light-emitting module, configured to provide a light;
• and
• a control unit, configured to change proportion of a first sub-light and a second sub-light to form the light so that a circadian action factor (CAF) and a correlated color temperature (CCT) of the light varies along a CAF vs. CCT locus of the light different from a CAF vs. CCT locus of sunlight, wherein a CAF vs. CCT coordinate of one of the first sub-light and the second sub-light is below the CAF vs. CCT locus of sunlight, and a CAF vs. CCT coordinate of the other one of the first sub-light and the second sub-light is above the CAF vs. CCT locus of sunlight.

A light source apparatus, comprising:

• a first light source, configured to provide a first light, wherein a circadian action factor (CAF) vs. correlated color temperature (CCT) coordinate (CCT, CAF) of the first light is within an area having an upper boundary, a lower boundary, and CAF vs. CCT coordinates between the upper boundary and the lower boundary, CAF vs. CCT coordinates (2700±100 K, 0.696), (4500±200 K, 1.348), and (6500±300 K, 1.604) are on the upper boundary, and CAF vs. CCT coordinates (2700±100 K, 0.197), (4500±200 K, 0.474), and (6500±300 K, 0.759) are on the lower boundary.