Transmissive liquid crystal display device
US8018552B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2008 |
| Grant date | Sep 13, 2011 |
| Priority date | — |
| Expiry date | Apr 20, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2413/13
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a transmissive liquid crystal display device which is less in display characteristics fluctuations, bright in display images, high in contrast and less in viewing angle dependency and comprises a backlight, a polarizer, a second optically anisotropic layer, a first optically anisotropic layer, a homogeneously aligned liquid crystal cell comprising upper and lower substrates facing each other and a liquid crystal layer sandwiched between the upper and lower substrates, and a polarizer, arranged in piles in this order from the backlight, wherein a liquid crystal film forming the first optically anisotropic layer, a liquid crystal film forming the second optically anisotropic layer and the liquid crystal cell have a predetermined relationship in the wavelength dispersion of birefringence, the first optically anisotropic layer, the second optically anisotropic layer and the liquid crystal cell upon application of an electric voltage for black image display, have a predetermined relationship in retardation, and the first optically anisotropic layer comprises a liquid crystal film with a fixed nematic hybrid orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.