Subpixel light emitting diodes for direct view display and methods of making the same
US11973172B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2021 |
| Grant date | Apr 30, 2024 |
| Priority date | — |
| Expiry date | Jul 22, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H29/0364
Abstract
A method includes transferring a first subset of the first LEDs from a first substrate to a first backplane to form first subpixels in pixel regions, transferring a first subset of the second LEDs to a second backplane and separating the first subset of the second LEDs from a second substrate to leave first vacancies on the second substrate, forming an additional electrically conductive material on a second subset of second LEDs located on the second substrate after transferring the first subset of the second LEDs to the second backplane, positioning the second substrate over the first backplane, such that the first subpixels are disposed in the first vacancies, and transferring the second subset of the second LEDs to a second subset of bonding structures on the first backplane to form second subpixels in the pixel regions, while a gap exists between the first subpixels and the second substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.