Transflective liquid crystal display device with no retardation layer on the transmissive regions, manufacturing method thereof and electronic apparatus
US7474367B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2006 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Dec 12, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2413/01
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An upper polarizing plate is provided on the outer surface of an upper substrate, and a lower polarizing plate is provided on the outer surface of a lower substrate. Also, a retardation layer having a phase shift of a quarter wavelength, and a protective layer are provided in turn only on reflective display regions of the inner surface of the lower substrate so that with no voltage applied, the phase shifts of a liquid crystal layer in transmissive display regions and the reflective display regions are set to a half wavelength and a quarter wavelength, respectively. Therefore, the present invention provides a transflective liquid crystal display device having enhanced display brightness in a transmission mode and excellent visibility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.