Patent ID: 11942587
Assignee: LUMILEDS, LLC
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 2:
3. The device of claim 1,
each areal region of the first semiconductor layer being a discrete, circumscribed areal region separated from circumscribed areal regions of all other composite contacts of the device so as to define a corresponding discrete pixel area of the light-emitting device, and
the set of multiple nanostructured optical elements being arranged so that, of light that is emitted within each pixel area and that exits the device through the second semiconductor layer, (i) at least a specified minimum fraction of the exiting light exits from that pixel area, (ii) at most a specified maximum fraction of the exiting light exits the device from other, different pixel areas, or (iii) a contrast ratio of the fraction of light exiting from that pixel area to the fraction of light exiting one or more adjacent pixel areas exceeds a specified minimum contrast ratio.