Photoluminescent nanocrystals based color liquid crystal display for switchable two dimensional/three dimensional displays with wider color gamut and high energy efficiency
US10955702B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 20, 2017 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Jan 20, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133638
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal display (LCD) device containing a layer of patterned photoluminescent nanoparticles, which can emit highly saturated color lights when excited with backlights, is disclosed in this invention. The patterned photoluminescent nanoparticle layer is disposed between the backlight and the liquid crystal. The display device can improve the light utilization efficiency for 3 times thus saving reduce the backlight power consumption to ⅓ or being 3 times brighter at the same power consumption from conventional LCD displays. The display also can produce an ultra-wide color gamut up to 95% of the CIE 1976 color space or 165% of NTSC color gamut. The display is capable of switching between 2-dimensional and 3-dimensional viewing modes without any hardware structures changes applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.