Flat panel display unit and method of repairing defects in its line pattern
US6937296B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2001 |
| Grant date | Aug 30, 2005 |
| Priority date | — |
| Expiry date | Oct 12, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/136263
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Shorting defects between the scan lines and signal lines are repaired during the manufacture of a TFT or other flat panel display unit without causing liquid crystal orientation defects and production yield is thereby improved. In a TFT panel in which scan line 2 bifurcates where scan line 2 and signal line 3 intersect, the lines having a protective insulation film 8 therebetween, one leg of the scan line 2 bifurcation is cut by a laser 9 where a short 7 has been found between lines at the intersection, thereby electrically separating the short. An insulation film material 13 dispensed from a glass pipette 12 is then applied locally to the cut part and surrounding area and cured to form a new insulation film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.