Thin film transistor array substrate, method of fabricating the same, liquid crystal display panel having the same and fabricating method thereof
US7336336B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2004 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | Mar 17, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/136231
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A substrate has intersecting gate and data lines with a gate insulating film therebetween, a thin film transistor provided at an intersection of the gate and data lines, a pixel electrode connected to the transistor, a pad connected to a signal line via a contact hole and containing a transparent conductive film, and a protective film overlapping a color filter array substrate to expose the film. The contact hole exposes the end of the pad and/or signal line and an adjacent area. A gate electrode, source and drain electrodes, and a contact electrode are formed from first, second, and third conductive layers, respectively. A contact hole exposes the first conductive layer of one transistor and an adjacent portion of the second conductive layer of another transistor. The contact electrode connects the exposed first and second conductive layers. Only three mask processes are used in fabricating the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.