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首页> 外文期刊>IEEE Transactions on Industrial Electronics >Color Calibration for a Surrounding True-Color LED Display System by PWM Controls
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Color Calibration for a Surrounding True-Color LED Display System by PWM Controls

机译：通过PWM控制对周围的真彩色LED显示系统进行颜色校准

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摘要

With rapidly advancing computer technology, the demand for color images is growing with time for both quantity and quality, especially for various display panels. The purpose of this paper is to develop color calibration methods with hardware and software compensations for a surrounding true-color LED display system to enhance the performance of the true-color image display. To have an even LED lighting-time control and a linear relationship between RGB input value and output luminance, pulsewidth modulation driving schemes are employed in driving LED display. The color calibration techniques also include gamma correction for gradation of the luminance, compensation for the RGB input values on the basis of LED white point, and weighting filter to eliminate the interference from the adjacent LEDs. The experimental results indicate that the color-calibrated LED display system offers a very wide color gamut, and gives a great enhancement in color saturation and brilliance. For the color-calibrated LED display system, the display quality is obviously improved, and it exhibits a colorful and saturated color display.
机译：随着计算机技术的迅速发展，对于彩色图像的需求在数量和质量上都随着时间增长，特别是对于各种显示面板。本文的目的是为周围的真彩色LED显示系统开发具有硬件和软件补偿的颜色校准方法，以增强真彩色图像显示的性能。为了具有均匀的LED点亮时间控制以及RGB输入值和输出亮度之间的线性关系，在驱动LED显示器时采用了脉宽调制驱动方案。颜色校准技术还包括用于灰度等级的伽马校正，基于LED白点的RGB输入值补偿以及加权滤波器以消除来自相邻LED的干扰。实验结果表明，经过色彩校准的LED显示系统提供了非常宽的色域，并极大地增强了色彩饱和度和亮度。对于色彩校准的LED显示系统，显示质量明显提高，并且呈现出彩色和饱和的彩色显示。

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