LCD panel with low resistance interconnection
US6515726B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2001 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Oct 25, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/136295
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A thin film transistor (TFT) array and an LCD (Liquid Crystal Display) panel made therefrom where at least one of the gate lines, the source electrodes, the drain electrodes and the data lines is formed of a copper alloy having a copper portion and a metal portion doped in the copper portion. The metal portion in the copper alloy includes a metal whose heat of metal oxide formation energy is greater than that of copper. The metal may be one selected from Ti (Titanium), Cr (Chromium), Ta (Tantalum), Mo (Molybdenum), In (Indium), Sn (Tin) and Al (Aluminum). The copper alloy has a high acid resistance, a high chemical resistance, and a high tolerance for moisture. The use of the copper alloy allows formation of a low resistance interconnection of copper that has a high electrical conductivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.