摘要
LCD的亮度响应特性与CRT不同,而人的视觉对于亮度灵敏特性几乎和CRT的输出特性相反,为达到符合人眼视觉特性的特性曲线,需要对LCD进行伽马校正。该课题介绍了LCD伽马特性,研究了伽马校正公式,采用Xilinx公司的Kintex-7 FPGA开发板为平台,提出了一种基于FPGA的LCD显示屏的伽马校正系统来补偿液晶本身的S形透过率特性曲线。通过该系统,明显改善了LCD的色彩显示,减小了色彩误差,并且可用于显示屏色彩的批量校正。
LCD and CRT luminance response characteristics are different. The human visual sensitivity characteristic for the luminance contrast to CRT output characteristics. To achieve the characteristic curve of human visual characteristic, we need gammacorrection for LCD. This paper describes the characteristics of the LCD gamma, studies gamma correction formula by usingXilinx's Kintex-7 FPGA development board as a platform. This paper puts forward a LCD display gamma correction system basedon FPGA to compensate for a transmittance characteristic S-shaped curve. This system significantly improves LCD color display,reduces errors of color, and can be used for the color correction batch of the display.
出处
《电脑知识与技术（过刊）》
2015年第9X期189-192,共4页
Computer Knowledge and Technology
