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DENG Linxiao, YANG Yuhua, YAO Binghui, ZHU Liquan, WANG Guan, GU Chun, XU Lixin. Distribution characteristics of color speckle in multi-primary laser display systems[J]. LASER TECHNOLOGY, 2023, 47(6): 736-741. DOI: 10.7510/jgjs.issn.1001-3806.2023.06.002
Citation: DENG Linxiao, YANG Yuhua, YAO Binghui, ZHU Liquan, WANG Guan, GU Chun, XU Lixin. Distribution characteristics of color speckle in multi-primary laser display systems[J]. LASER TECHNOLOGY, 2023, 47(6): 736-741. DOI: 10.7510/jgjs.issn.1001-3806.2023.06.002
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Distribution characteristics of color speckle in multi-primary laser display systems

  • 1.

    State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China

  • 2.

    Anhui Key Laboratory of Optoelectronic Science and Technology, School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China

  • 3.

    Advanced Laser Technology Laboratory of Anhui Province, Hefei 230026, China

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  • Received Date: September 05, 2022
  • Revised Date: March 19, 2022
  • Published Date: November 24, 2023
    Graphical Abstract
    • Abstract
  • In order to investigate the color-speckle characteristics in multi-primary laser display systems, the spatial distribution of color speckles was simulated by a Monte Carlo method. In the CIE-u′v′ chromaticity diagram, a simplified ellipse model of color speckles was defined to describe the spatial distribution of color speckles in the display system intuitively. The effects of the number and different wavelength combinations of primary colors on color speckles were analyzed. The results show that with the increase in the number of primary colors, the ellipse becomes smaller, and the color speckle is reduced. The ellipse area of the three-primary system is 16.0×10-4, while that of the six-primary system is 6.81×10-4. Especially, the green primary has the greatest effect on color speckles. In the multi-primary display system, the brightness ratio of each primary color is not unique for a given white point, so there is a tradeoff between the color performance and speckle phenomenon. When the brightness weight of the primary color with a large speckle contrast value is reduced, the color speckle phenomenon will be alleviated. This study can provide theoretical guidance for color speckle evaluation of multi-primary laser display systems.
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    • References (23)
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