Method and system for automatically adjusting brightness and chroma of display device

Abstract

The invention provides a method and a device for automatically adjusting brightness and chroma of a display device. The method for automatically adjusting brightness and chroma of the display device comprises the steps of according to a color coordinate of a target white picture and a measured color coordinate and a measured brightness of a maximal gray scale picture of each single-color picture of a display device to be adjusted, obtaining a target brightness of the maximal gray scale picture of each single-color picture; obtaining a target T value of a random gray scale picture of each single-color picture according to the target brightness of the maximal gray scale picture of each single-color picture, the measured brightness of a least gray scale picture and a target gamma curve; finding out a register parameter which corresponds with the calibrated target T value from a pre-established correspondence table between the register parameter and T values; and writing the register parameter into the display device to be calibrated for adjusting the chroma and the gamma curve of the white picture. The method and the system according to the invention have advantages of realizing no requirement for manual adjustment, reducing adjusting time, and performing accurate adjustment on the brightness and chroma of the display device according to a user requirement.

Description

technical field [0001] The present invention relates to the field of display technology, more specifically, to a method and system for automatically adjusting the brightness and chromaticity of a display device. Background technique [0002] During the mass production of display devices, due to differences in the backlight modules, glass substrates and manufacturing processes of different display devices, the display effects of different display devices produced in the same batch are not the same. At the same time, different users have different requirements for color temperature. For example, Europeans prefer warm colors, while Asians prefer cool colors. Therefore, in order to ensure the concentration of the display effect of the same batch of products and to meet the different color temperature requirements of different users, it is necessary to adjust the brightness and chromaticity of the display device before leaving the factory so that the product can meet the needs of...

AI Technical Summary

Problems solved by technology

The existing adjustment methods include manual adjustment, that is, manual adjustment of the display device based on experience and using some auxiliary tools. However, this adjustment method is time-consuming, usually tens of minutes, which reduces the production efficiency of the display device.

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