Displays with collimated light sources and quantum dots
US10591774B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2017 |
| Grant date | Mar 17, 2020 |
| Priority date | — |
| Expiry date | Jan 19, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/044
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display may have display layers that form an array of pixels. The display layers may include a first layer that includes a light-blocking matrix and a second layer that overlaps the first layer. The first layer may include quantum dot elements formed in openings in the light-blocking matrix. The light-blocking matrix may be formed from a reflective material such as metal. The second layer may include color filter elements that overlap corresponding quantum dot elements in the first layer. Substrate layers may be used to support the first and second layers and to support thin-film transistor circuitry that is used in controlling light transmission through the array of pixels. The display layers may include a liquid crystal layer, polarizer layers, filter layers for reflecting red and green light and/or other light to enhance light recycling, and layers with angularly dependent transmission characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.