Angle adjustment tool, angle adjustment system for liquid crystal panel and line defect analysis method
US10642170B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 17, 2017 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Mar 9, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/9513
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An angle adjustment tool, an angle adjustment system for a liquid crystal panel and a corresponding line defect analysis method are disclosed. The angle adjustment tool includes: a base; a first toothed member and a second toothed member; a rotating scale; and an angle indicator. The first toothed member includes a first toothed portion. A first end of the second toothed member has a second toothed portion and engages with the first toothed portion of the first toothed member, and a second end of the second toothed member is connected to the rotating scale; the second toothed member is pivotable about a central pivot axis of the second toothed portion. A pitch circle diameter of the second toothed portion is n times a pitch circle diameter of the first toothed portion, where n is a positive integer greater than or equal to 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.