Liquid crystal display having a defect repair mechanism interposed between a light shielding storage line and a light shielding output electrode
US7612863B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2007 |
| Grant date | Nov 3, 2009 |
| Priority date | — |
| Expiry date | Jul 3, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/136286
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal display that is subject to pixel-high defects due to manufacturing anomalies is provided with programmable repair means for each pixel electrode. In one embodiment, a transistor-array substrate is provided with plural gate lines that are separated from each other by a first interval, plural data lines that are insulated from the gate lines while crossing the gate lines, and separated from each other by a second interval larger than the first interval, thereby defining plural pixel areas. Each pixel area has a corresponding pixel unit comprising a switching device, pixel electrode, and repair electrode. The repair electrode branches from a neighboring gate line and extends such that the repair electrode is in overlapping spaced-apart relation with the pixel electrode and selectively connectable to the pixel electrode. Accordingly, a pixel where a high pixel defect occurs can be repaired by selective connection with the repair electrode, thereby improving display quality of the liquid crystal display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.