Method for evaluating brightness measurement accuracy of Demura equipment
US11081029B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2018 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Jul 9, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/145
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention discloses a method for evaluating a brightness measurement accuracy of a Demura equipment by generating a noise-added image by adding a random number to an original grayscale image and obtaining a measurement value corresponding to the added random number via the noise-added image displayed by the Demura equipment. The brightness measurement accuracy of the Demura equipment is evaluated based on a correlation between the measured value and the originally added random number to measure a brightness extraction performance of the Demura equipment. The method provided by the invention provides a quantitative and measurable determining method that may better reflect the actual performance of the Demura equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.