Inspection device of display device and inspection method of display device
US9835565B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2015 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Feb 10, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0683
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An inspection device of a display device includes a first illumination unit providing a first incident light to the display device at a first incident angle, a second illumination unit providing a second incident light to the display device at a second incident angle, a third illumination unit providing a third incident light to the display device at a third incident angle, and a defect detector receiving at least one of a first reflection light obtained from the first incident light reflected by the display device at a first reflection angle, a second reflection light obtained from the second incident light reflected by the display device at a second reflection angle, and a third reflection light obtained from the third incident light reflected by the display device at a third reflection angle to detect defects of the display device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.