Generating method of Gamma value test chart of display device and measuring method of Gamma value thereof
US9269288B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 8, 2013 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | May 5, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/69
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a method for generating a test chart for Gamma value of a display device and a method for testing Gamma value thereof. The method includes: determining a grayscale corresponding to a generated test chart for Gamma value of the display device, and determining luminance of a standard picture area represented by the test chart for Gamma value of the display device; determining a grayscale voltage of a test picture area according to the grayscale corresponding to the standard picture area in the display panel, and determining the luminance of the test picture area displayed by the display panel under the grayscale voltage; comparing the luminance of the test picture area and the luminance of the standard picture area, and determining the Gamma value of the display device according to the result of the comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.