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1.中国科学院 长春光学精密机械与物理研究所, 吉林 长春 130033
2.中国科学院大学, 北京 100049
3.长春希达电子技术有限公司, 吉林 长春 130103
[ "宿然(1998-),女,吉林四平人,硕士研究生,2020年于吉林大学获得学士学位,主要从事平板显示、图像处理的 研究。E-mail:suran987@126.com" ]
[ "陈宇(1968-),男,吉林长春人,博士,研究员,2004年于中国科学院长春光学精密机械与物理研究所获得博士学位,主要从事新型平板显示、信息传输等方面的研究。E-mail:cheny@ccxida.com" ]
纸质出版日期:2023-02-05,
收稿日期:2022-07-04,
修回日期:2022-07-25,
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宿然,郑喜凤,陈宇等.温度波动对LED显示屏白平衡主要参数及图像色调的影响[J].发光学报,2023,44(02):346-355.
SU Ran,ZHENG Xifeng,CHEN Yu,et al.Effect of Temperature Fluctuation on White Balance Main Parameters and Hue of LED Panel[J].Chinese Journal of Luminescence,2023,44(02):346-355.
宿然,郑喜凤,陈宇等.温度波动对LED显示屏白平衡主要参数及图像色调的影响[J].发光学报,2023,44(02):346-355. DOI: 10.37188/CJL.20220257.
SU Ran,ZHENG Xifeng,CHEN Yu,et al.Effect of Temperature Fluctuation on White Balance Main Parameters and Hue of LED Panel[J].Chinese Journal of Luminescence,2023,44(02):346-355. DOI: 10.37188/CJL.20220257.
LED显示屏的图像显示质量一直是显示行业内重点关注的问题,而LED显示屏的白平衡参数决定了其复现和还原的显示图像的亮度和色调,是影响图像显示质量的重要因素。一般情况下,显示屏的白平衡由红、绿、蓝三基色的亮度配平比例确定,而且该配平比例相对稳定;但是对于LED的各个基色来说,环境因素的变化会引起基色参量的变化,从而导致显示屏白平衡的漂移,严重影响图像显示质量。本文基于色度学理论和LED显示特性,构建了特定LED显示颜色空间模型;并在设定颜色空间探究不同温度环境各个基色仅在亮度变化条件下对白平衡参数的影响,重点研究了在温度波动条件下白平衡的漂移规律以及显示图像产生的色调的畸变情况;通过归纳不同波动参数定量分析温度变化对LED显示屏白平衡主要参数的影响,为高清LED显示控制系统提供较有价值的图像修正理论依据,有助于提升高端LED显示产品的显示质量。
Image quality has always been a hot topic in LED display field, one of momentous contributing factors is white balance parameter, which directly determines the luminance and chroma fidelity. Generally, white balance is adjusted by fixed ratio of luminance of the primaries. Furthermore, balance ratio is relatively stable. But for each primary of the LED, changes in environmental factors will cause changes in the primary parameters. As a result, the white balance of the display panel drifts, which seriously affects the image display quality. Based on the theory of chromaticity and characteristics of LED, this paper builds a gamut model of a specific LED display to discuss the effect of each primary on white balance parameters in different temperature environments only when the brightness changes. The variation of white balance parameters and hue distortion under temperature fluctuation are mainly quantitative analyzed. In that, this paper provides a valuable theoretical basis for the revision of the high-definition LED display control system, which helps to enhance the qualities of high-end LED display products.
LED显示温度波动白平衡
LED displaytemperature fluctuationwhite balance
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