Light-emitting diode device containing microlenses and method of making the same
US12159964B2 · kind B2 · utility
0Cited by
8References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 15, 2021 |
| Grant date | Dec 3, 2024 |
| Priority date | — |
| Expiry date | Feb 4, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/821
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A light-emitting device includes a backplane, light-emitting diodes (LEDs) located over a front side of the backplane, and microlenses respectively disposed over the LEDs. Each microlens includes a back surface having a first surface area and configured to receive light emitted from a corresponding LED, an opposing front surface having a second surface area and configured to emit the received light, and at least one sidewall extending from the front surface to the back surface. The second surface area is greater than the first surface area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.