Display and electronic unit having particular optical laminate
US8625063B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 29, 2012 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Jul 8, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2413/07
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display capable of obtaining high contrast and an electronic unit including the display are provided. The display includes: a liquid crystal display panel including a liquid crystal layer and a light reflective layer; and an optical laminate disposed on the liquid crystal display panel, in which the optical laminate includes a first retardation layer, a light diffuser layer, a second retardation layer, and a polarization layer in order from a side closer to the liquid crystal display panel, the first retardation layer is a negative C-plate, and the second retardation layer is a λ/4 plate or a combination of a λ/4 plate and a λ/2 plate arranged in order from a side closer to the liquid crystal display panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.