Semi-transmissive liquid crystal display device
US6914656B2 · kind B2 · utility
127Cited by
3References
16Claims
0Family size
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Key dates
| Filing date | May 21, 2003 |
| Grant date | Jul 5, 2005 |
| Priority date | — |
| Expiry date | Jul 3, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/134363
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a semi-transmissive liquid crystal display device having a reflective region 5 and a transmissive region therein, a one-half wavelength plate 29 is disposed between a lower substrate 11 and a polarizer 21a provided on a side of the lower substrate. This makes liquid crystal molecules in at least the transmissive region 6 driven by a horizontal electric field and allows the device to operate in a normally-black mode in both the reflective region 5 and the transmissive region 6, realizing a semi-transmissive liquid crystal display device having wide viewing angle characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.