ZHAO Zi-quan, WANG Rui-guang, ZHENG Xi-feng, HAO Ya-ru, CHEN Yu. Systemic Accuracy Analysis of LED Displays Based on Visual Perception[J]. , 2012,(3): 324-331
ZHAO Zi-quan, WANG Rui-guang, ZHENG Xi-feng, HAO Ya-ru, CHEN Yu. Systemic Accuracy Analysis of LED Displays Based on Visual Perception[J]. , 2012,(3): 324-331 DOI: 10.3788/YJYXS20122703.0324.
A linear mathematical model is established to describe LED displays’ colors accor-ding to LED’s optical characters and the the pulse width modulation method of LED displays’ control system. Furthermore
the mathematical model is connected with the visual perception in CIE1976LUV color space. This paper analyzed the relationship between visual perception and accuracy requirement of control system when the neighbouring gray levels and neighbouring colors of LEDs are discussed. Moreover
to calculate the control system’s accuracy according to visual perception
the uniform problems of LED are discussed. This paper gives an algorithm to calculate the systemic accuracy of LED displays based on visual perception. With the algorithm
it is possible to design and optimize the LED displays’ control system according to visual perception before the LED displays are produced.
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references
Harris S. Color and luminance uniformity correction for LED video screens..http://www.signindustry.com/led/articles/2007-10-15-SH-PulseWidthModulationPWMCorrectionOfLEDDisplays.php3.
Svilainis L. LED brightness control for video display application [J]. Displays, 2008, 29(5):506-511.
Schanda J. CIE colorimetry and colour displays // Proceedings of the Color Imaging Conference: Color Science, Systems, and Applications, Scottsdale, Arizona:Society for Imaging Sci. & Technology, 1996:230-234.
Carter R C, Carter E C. CIE L*,U*,V* color difference equations for self luminance displays [J]. Color Research and Applications, 1983, 8:252-253.
CIE. Colorimetry(Publication CIE NO15.3)[S].Third edition, Austria: Central Bureau of the CIE, 2004.
Macadam D L. Visual sensitivities to color differences in daylight [J]. J. Opt. Soc. Am., 1942,32:247-273.