AMOLED子像素渲染算法研究

Study on AMOLED Sub-Pixel Rendering Algorithm

提出多种对应不同像素排列方式的子像素渲染算法,该方法基于特殊的像素排列方式设计相应的像素借用方案,在受像素结构限制以及像素缺色限制导致显示效果不佳的情况下采取不同的像素借用方案以改善面板的显示效果。像素借用方式不局限于简单行间借色,还包括同时借用附近多个像素、经显示图像特征判断算法处理后仅对显示目标特征的区域进行算法补偿。该算法经验证可有效改善特殊像素排列下显示图像时出现的缺陷,有效改善例如线条锯齿感、弧线不均匀、图像细节缺失、彩边效应等问题。同时,对于多种像素借用方案提出效果评价方式及评价标准,通过对各算法方案基于多个评价维度打分的方式选出最适用于此显示设备的方案。

In this paper, Several sub-pixel rendering algorithms corresponding to different pixel arrangement are proposed. In this method, the corresponding pixel borrowing schemes are designed based on the special pixel arrangement to be improved, and different pixel borrowing schemes are adopted to improve the display effect of the panel under the condition that the display effect is not good due to the constraints of pixel structure and pixel color deficiency. The method of pixel borrowing is not limited to simple color borrowing between lines, but also includes borrowing multiple nearby pixels at the same time, and compensating only the area displaying target features after processing by the display image feature judgment algorithm. This algorithm is proved to be effective in improving the defect of display image with special pixel arrangement, such as line saw-tooth sensation, uneven arc, image details missing, color edge effect and other problems. At the same time, The evaluation methods and evaluation criteria are proposed for various pixel borrowing schemes, and the scheme most suitable for the display device can be selected by scoring each algorithm scheme based on multiple evaluation dimensions.