Segmented gray scale modulation of LED display and optimal scan clock access

Fei, 严飞 Yan; Rui-guang, 王瑞光 Wang; Yi-cheng, 邓意成 Deng; Xi-feng, 郑喜凤 Zheng

doi:10.3788/ope.20132112.3248

光学精密工程

2013

DOI: 10.3788/ope.20132112.3248

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Segmented gray scale modulation of LED display and optimal scan clock access

严飞 Yan Fei¹,

王瑞光 Wang Rui-guang²,

邓意成 Deng Yi-cheng³

et al.

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Calibration of Abnormal Brightness Area on the LED Display

Xinyue¹,

Rui-guang²,

Cheng³

et al. 2017

ITM Web Conf.

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Abstract. Due to the collection method, the acquisition environment and the LED's own light-emitting characteristics, the effect of LED point-by-point brightness correction will be affected, which results in the abnormal brightness area on the display. In this paper, a calibration method based on the brightness correction coefficient map is presented, which use s the step-by-step weighted shrinkage algorithm to post-process the correction coefficient in order to eliminate the abnormal area on the screen. The result showes that uniformity of the entire LED display is greatly improved and the deviation decreases from 12.86% before correction to the present 2.39%.

show abstract

Calibration of Abnormal Brightness Area on the LED Display

Xinyue¹,

Rui-guang²,

Cheng³

et al. 2017

ITM Web Conf.

View full text Add to dashboard Cite

show abstract

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Segmented gray scale modulation of LED display and optimal scan clock access

Cited by 1 publication

References 0 publications

Calibration of Abnormal Brightness Area on the LED Display

Calibration of Abnormal Brightness Area on the LED Display

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