LCD device having a smaller level difference
US7142276B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 19, 2004 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | May 19, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133784
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The TFT substrate of an LCD device has an array of pixel electrodes defined by a plurality of signal lines and a plurality of scanning lines. Each terminal of the scanning lines includes a first metallic pattern, a second metallic pattern in contact with the first metallic pattern through a first via hole, and an ITO pattern in contact with the second metallic pattern through a second via hole. The ITO pattern has a width smaller than the width of the first via hole and larger than the second via hole, thereby providing the TFT substrate with a smaller level difference. The smaller level difference prevents the dust generated during a rubbing treatment from attaching onto the TFT substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.