In-plane switching liquid crystal display apparatus with reduced capacitance between pixel electrodes and common electrodes
US6507383B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2000 |
| Grant date | Jan 14, 2003 |
| Priority date | — |
| Expiry date | Jun 29, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133345
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal display unit in which a voltage is applied to a pixel electrode and a common signal electrode constituted by two upper and lower transparent conductive layers having insulation layers disposed therebetween so that a liquid crystal is driven to control display can improve any one or both of reduction of a writing time of the liquid crystal (reduction of a capacitance between the pixel electrode and the common signal electrode) and reduction of a driving voltage of the liquid crystal. An inter-layer insulation layer between the transparent electrodes formed of different layers is constituted by at least one or a laminated structure of a part of a gate insulation layer, a part of a surface protection layer of a thin film transistor and an applied-type insulation layer and insulation layers in an area which is positioned above the lower transparent electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.