Apparatus and method for measuring ground amounts of liquid crystal display panel
US7528922B2 · kind B2 · utility
1Cited by
39References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2003 |
| Grant date | May 5, 2009 |
| Priority date | — |
| Expiry date | Oct 26, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133351
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus for measuring ground amounts of a liquid crystal display panel includes a grinding unit for grinding upper and lower marginal portions of a unit liquid crystal display panel, a first imaging system for producing images of a ground surface of the upper marginal portion of the unit liquid crystal display panel, and a second imaging system for producing images of a ground surface of the lower marginal portion of the unit liquid crystal display panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.