Semi-transmissive type liquid-crystal display device and method of fabricating the same
US7570327B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2007 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Jan 28, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/136286
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A semi-transmissive type liquid-crystal display device suppresses the reduction and corrosion of the transmission or common electrode due to the cell corrosion reaction with a simple method. In each pixel region, the reflection electrode is formed over the glass plate, where the interlayer insulating film and the barrier metal film intervene between them. The reflection electrode is electrically connected to the transmission electrode by way of the barrier metal film. The transmission electrode and the corresponding scanning line thereto are apart from each other at a distance of 2 μm (preferably, 3 μm) or greater. A developer solution penetrating through the crack formed in the barrier metal film does not reach the transmission electrode (or common electrode), preventing the reduction and corrosion of the transmission or common electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.