Influence of white point on stereo color gamut of three primary display systems and their accurate calculation

Guan WANG; Chun GU; Li-xin XU

doi:10.37188/CJLCD.2022-0123

Chinese Journal of Liquid Crystals and Displays, Volume. 37, Issue 9, 1165(2022)

Influence of white point on stereo color gamut of three primary display systems and their accurate calculation

Guan WANG^1,2,3, Chun GU^1,2,3、*, and Li-xin XU^1,2,3

¹State Key Laboratory of Particle Detection and Electronics， University of Science and Technology of China， Hefei 230026， China

²Anhui Key Laboratory of Optoelectronic Science and Technology， University of Science and Technology of China， Hefei 230026， China

³Advanced Laser Technology Laboratory of Anhui Province， Hefei 230026， China

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Figures & Tables(9)

Fig. 1. Relationship between the white point coordinates and the spectral width of the three primary colors

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Fig. 2. Color gamut volume changed with white point color coordinates（a） and the position of white point in the CIEXYZ chromaticity diagram（b）

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Fig. 3. Partial derivative of the gamut volume with respect to the abscissa of the white point （a） and the ordinate （b）

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Fig. 4. Relationship between spectral width and color gamut under the two assumptions

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Fig. 5. Relationship between the change of white point coordinates and the spectral width of the green primary

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Fig. 6. Influence of the center wavelength and spectral width of green light on the color gamut volume under the two schemes

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Fig. 7. Taking D65 as the reference white light， the color coordinate range of the white point with a color gamut offset of 3% （a） and its position in the CIEXYZ chromaticity diagram （b）.

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Table 1. Relationship between stereoscopic color gamut and spectral width before and after white point coordinate correction

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Table 1. Relationship between stereoscopic color gamut and spectral width before and after white point coordinate correction

光谱宽度/nm	保持式（9）中强度配比的立体色域/ $10^{6}$	$∆ x_{0}$	$∆ y_{0}$	经过白点色坐标修正后的立体色域/ $10^{6}$	根据白点配平得到的立体色域实际值/ $10^{6}$
1	1.844 9				1.844 9
10	1.820 2	0.002 0	0.001 4	1.822 8	1.823 5
20	1.744 5	0.006 0	0.003 8	1.750 7	1.751 5
30	1.619 9	0.010 6	0.006 1	1.628 5	1.629 7
40	1.454 2	0.015 0	0.009 3	1.469 0	1.468 5

Table 2. Deviation of the color gamut volume to the coordinates of the white point under different wavelengths of green light

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Table 2. Deviation of the color gamut volume to the coordinates of the white point under different wavelengths of green light

绿光波长/nm	强度配比（蓝光∶绿光∶红光）	$\frac{\partial V}{\partial x_{0}}$	$\frac{\partial V}{\partial y_{0}}$
520	1∶1.279 3∶1.609 7	$1.141 9 \times 10^{5}$	$- 3.823 1 \times 10^{6}$
525	1∶1.143 6∶1.493 3	$5.671 9 \times 10^{5}$	$- 3.983 2 \times 10^{6}$
532	1∶1.041 3∶1.345 1	$1.479 3 \times 10^{6}$	$- 3.972 9 \times 10^{6}$
550	1∶1.009 2∶0.930 4	$4.117 3 \times 10^{6}$	$- 5.114 4 \times 10^{6}$

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Guan WANG, Chun GU, Li-xin XU. Influence of white point on stereo color gamut of three primary display systems and their accurate calculation[J]. Chinese Journal of Liquid Crystals and Displays, 2022, 37(9): 1165

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Paper Information

Category: Research Articles

Received: Apr. 14, 2022

Accepted: --

Published Online: Sep. 14, 2022

The Author Email: Chun GU (guchun@ustc.edu.cn)

DOI:10.37188/CJLCD.2022-0123

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