Generation method and device of curved screen flattened image

Abstract

The embodiment of the invention discloses a generation method and device of a curved screen flattened image, which are used for reducing the difficulty of curved screen image defect compensation. The method provided by the embodiment of the invention comprises the steps of constructing a flattening algorithm calibration image; inputting the flattening algorithm calibration image into a curved screen, and obtaining a curved screen image with a pixel dot matrix; determining a center dot matrix point coordinate of the curved screen image; determining a corresponding envelope ROI region for each dot matrix point in the curved screen image according to the center dot matrix point coordinate; generating an actual dot matrix point coordinate array according to the envelope ROI region; generating an ideal dot matrix point coordinate array according to the center dot matrix point coordinate; calculating a distortion correction coefficient of each dot matrix point; generating an ideal flattened blank image according to the center dot matrix point coordinate; calculating a curved screen image coordinate position corresponding to each pixel position on the ideal flattened blank image according to the distortion correction coefficient; and filling gray information of the curved screen image into the ideal flattened blank image to generate a target curved screen flattened image.

Description

technical field [0001] The embodiments of the present application relate to the field of curved display screens, and in particular to a method and device for generating a flattened image on a curved screen. Background technique [0002] With the continuous development of information display technology, the display screen (Organic Electroluminescence Display, OLED) is gradually replacing the traditional LCD with its advantages of self-illumination, bendability, wide viewing angle, fast response speed, and simple manufacturing process, and is rapidly and deeply applied to modern all areas of society. [0003] However, as the market has higher and higher requirements for the display quality of display screens, the requirements for appearance design are also becoming more and more diversified. The quality and appearance design requirements are also getting higher and higher, such as: Liu Haiping, water drop screen, curved display (curved screen), etc. Among them, the demand fo...

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Problems solved by technology

In addition, the density of sub-pixels at the arc corner of the curved screen in the captured curved screen image has also changed, which will cause differential noise caused by inconsistent spatial distribution periods, difficult pixel positioning, and low precision during mura defect compensation detection. question

[0004] At present, the curved screen image captured by the mura defect compensation technology has the problem of pixel deformation and distortion, which increases the difficulty of compensating the image defect of the curved screen

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