Liquid crystal display device having particular green cut filter layer and blue cut filter layer
US7733447B2 · kind B2 · utility
1Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2008 |
| Grant date | Jun 8, 2010 |
| Priority date | — |
| Expiry date | Apr 2, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13478
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal display device in which three cholesteric liquid crystal layers of selective reflection type are laminated, comprises: a first liquid crystal layer arranged on a device observation side selectively reflecting blue; a second liquid crystal layer arranged next to the first liquid crystal layer selectively reflecting green; a third liquid crystal layer arranged next to the second liquid crystal layer selectively reflecting red; and a green cut filter layer arranged between the green liquid crystal layer and the red liquid crystal layer selectively absorbing a light ray of a wavelength of 600 nm or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.