Photoluminescence liquid crystal display
US7750984B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2007 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | Feb 1, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133617
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a photoluminescence liquid crystal display (LCD) using a light source emitting polarized light. The photoluminescence LCD may include a light source emitting polarized light, a light control unit including a liquid crystal layer having a plurality of pixel regions and modulating a polarization direction of the polarized light individually with respect to each of the pixel regions, a polarizer transmitting the modulated light only when the polarized light has a polarization direction, and a photoluminescence layer excited by the light transmitted through the polarizer and emitting excitation light by photoluminescence. Accordingly, an additional polarizer may not be on a rear surface of the light control unit, so that photoluminescence LCD may have a simpler structure and increased light use efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.