Patent ID: 11894416
Assignee: GOOGLE LLC
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A display device comprising:
a substrate including a first emitter and a second emitter disposed thereon, the second emitter being adjacent to the first emitter in a direction parallel to a top surface of the substrate;
the first emitter including a first lower active quantum well (QW) region having a first emission spectrum with a first spectral range,
the second emitter including:
an upper active QW region having a second emission spectrum with a second spectral range distinct from the first spectral range;
a second lower active QW region having the first emission spectrum and being disposed between the upper active QW region and the substrate; and
a barrier layer disposed between the second lower active QW region and the upper active QW region, the barrier layer suppressing emission from the second lower active QW region, and

at least one of:
a width of the second lower active QW region exceeding a width of the first lower active QW region in the direction parallel to the top surface of the substrate; or
a cross-sectional area of the second lower active QW region in a plane parallel to the top surface of the substrate exceeding a cross-sectional area of the first lower active QW region.