IPS type liquid crystal display with protrusive electrodes
US7130011B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2004 |
| Grant date | Oct 31, 2006 |
| Priority date | — |
| Expiry date | Jul 10, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/40
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An IPS (in-plane switching) liquid crystal display has a color filter substrate (3), a TFT (thin film transistor) substrate (8), and a liquid crystal layer (7) interposed therebetween. The TFT substrate includes a TFT plate (5), a protrusion layer (6), and an electrode matrix. The electrode matrix includes a plurality of transversely disposed gate lines (22), a plurality of longitudinally disposed data lines (21), switching elements, a plurality of common electrodes (27), and a plurality of pixel electrodes (28). The protrusion layer has a plurality of protrusion portions (61). The common and pixel electrodes are formed on the protrusion portions in one-to-one correspondence to provide an array of protrusive electrodes that generate a strong and highly uniform parallel electric field. This provides better picture quality, and can lower power consumption and/or yield a higher aperture ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.