Luminance supplementing method and device for display device, and display device

Abstract

The invention discloses a supplementing method and device for improving luminance uniformity of a display device, and the display device, wherein efficiency of extracting luminance information of the display device is improved while luminance uniformity of the display device is improved. The luminance supplementing method for the display device includes the steps of firstly, for each sub-pixel, corresponding to the display device, in an input image, obtaining an input gray-scale value of the current sub-pixel and a function relation corresponding to the current sub-pixel, wherein the function relation is a corresponding relation which is determined between the supplemented grey-scale value corresponding to each sub-pixel and the input grey-scale value for the sub-pixel of the display device in advance according to the test luminance value and target luminance value of the sub-pixel under various test patterns with different grey-scale values; secondly, obtaining the supplemented grey-scale value corresponding to each sub-pixel through the input grey-scale value and the corresponding function relation of the sub-pixel, and conducting luminance supplementing on the sub-pixel according to the supplemented grey-scale value.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a brightness compensation method of a display device, a brightness compensation device and a display device. Background technique [0002] Under the current manufacturing process conditions, organic light emitting diode (Organic Light Emitting Diode, OLED) display devices have spatial and temporal non-uniformity problems, and as the size of the display device becomes larger, such problems are exposed more and more. It is obvious that solving the display non-uniformity of large-size OLED display devices has become one of the indispensable key technologies in mass production. The display unevenness of OLED display devices is closely related to the manufacturing process. When there is a large difference in the threshold voltage value of the entire panel, the overall brightness uniformity of the display device will become poor; at the same time, the organic materials used in t...

AI Technical Summary

Problems solved by technology

Therefore, in order to improve the accuracy, ΔG needs to be reduced, and in order to expand the compensation range, the number of measurements can only be increased, and for each gray scale, multiple measurements and comparisons are required, which is very inefficient

This method will not be used in mass production due to the long time consumption of the measurement and the increase in data processing

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