Sunlight viewable color liquid crystal display using diffractive color separation microlenses
US6618106B1 · kind B1 · utility
11Cited by
8References
2Claims
0Family size
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Key dates
| Filing date | Jul 21, 2000 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Aug 10, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133621
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A high brightness, high color saturation liquid crystal display permits direct sunlight viewing. The display includes one or more diffractive color separation microlenses, in one embodiment, trimodal, which serves both to spatially separate incoming white light into red, green and blue bands and to focus the bands onto a subpixel matrix. A stepped and segmented surface of at least one microlens enables that microlens to provide a plurality of diffraction patterns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.