Liquid crystal display apparatus
US9261640B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 14, 2013 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | Feb 14, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133536
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal display apparatus includes a liquid crystal display panel including a liquid crystal cell between first second polarizing plates; and a surface light source device. The surface light source device includes a light source unit, a light guide plate for outputting first directivity light having directivity of maximum intensity in a first direction, which forms a predetermined angle from a normal direction of the light output surface in a plane approximately parallel to a light guiding direction of light, and having a high ratio of a polarized light component oscillating in the plane and a prism sheet being configured to convert the first directivity light into second directivity light directed in a second direction within a predetermined angle from the normal direction of the light output surface of the light guide plate while substantially maintaining a polarization state of the first directivity light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.