Neutral polarizer and liquid crystal display
US6683717B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2000 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Apr 26, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133567
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A neutral polarizer has a dichroic polarizing sheet and a polarizing and scattering sheet laminated on the dichroic polarizing sheet. The polarizing and scattering sheet has anisotropy in light scattering properties depending on a direction of polarization, and has an optical axis showing intense scattering properties. Scattering intensity of linearly polarized light having a polarization direction of the optical axis is greatly dependent on wavelength. An absorption axis of the dichroic polarizing sheet and the optical axis of the polarizing and scattering sheet are in parallel to each other. A liquid crystal display is provided so that this neutral polarizer is disposed on a light source side of a liquid crystal panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.