Patent ID: 11929353
Assignee: NUVOTON TECHNOLOGY CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H  F | IPC F  H

Claim 4:
5. The white light emitting device according to claim 4,
wherein, when an emission chromaticity of each of the plurality of first light-emitting units at the time of application of the first current to the plurality of first light-emitting units is represented by CIE coordinates (Cx11i, Cy11i) (1≤i≤n), and
an emission chromaticity of each of the plurality of second light-emitting units at the time of application of the first current to the plurality of second light-emitting units is represented by CIE coordinates (Cx21i, Cy21i) (1≤i≤m),
all of the CIE coordinates (Cx11i, Cy11i) are inside the 3-step MacAdam ellipse centered around the CIE coordinates (Cx11, Cy11), and
all of the CIE coordinates (Cx21i, Cy21i) are inside a 3-step MacAdam ellipse centered around the CIE coordinates (Cx21, Cy21).