Integrated prism sheet for improved viewing angle in direct view color filterless liquid crystal displays
US6600528B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2000 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Apr 12, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133504
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display device provides a first optical device disposed in a light path for spatially separating angularly separated light into color components, and a pixel which receives each of the color components through a sub-pixel. Each sub-pixel controls transmitted light intensity therethrough. A black matrix is formed in operative relationship with the sub-pixels including apertures for receiving the color components. A microstructured layer is disposed in the light path and receives or transmits the color components from or to the apertures of the black matrix. The microstructured layer includes tilted and/or curved surfaces for redirecting laterally shifted color components shifted by the first optical device and may also diffuse light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.