Recognition device and alignment system
US9875419B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 19, 2015 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | May 9, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/69
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention provide a recognition device and an alignment system. The recognition device is configured to recognize an alignment mark on a display substrate and comprises a camera unit and a light source unit. The camera unit is configured to shoot the alignment mark, and the light source unit is configured to radiate emitted light onto the alignment mark. The recognition device further comprises a light processing unit configured to process light emitted from the light source unit so that the luminance of the light irradiated onto the alignment mark is greater than that of the light emitted from the light source unit. Through the arrangement of the light processing unit, the recognition device enables the luminance of the light irradiated onto the alignment mark to be greater than that of the light emitted from the light source unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.