Curved backlight and system for stray light control
US10996511B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2020 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Jun 1, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133607
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display including a curved backlight and system for stray light control is disclosed. In embodiments, the curved backlight includes a curved substrate and an array of light sources disposed on the curved substrate, collimating optics, and a diffuser. The array of light sources includes a first group of light sources and a second group of light sources. The collimating optics are arranged to receive and collimate light only from the first group of light sources. The diffuser is arranged to receive and diffuse the collimated light from the collimating optics and light from the second group of light sources. The display further includes a liquid crystal layer arranged to receive light generated by the array of light sources and to display an image. The display further includes a controller configured to control the array of light sources such that at least some of the light sources emit light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.