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Journal of Display Technology

Journal of Display Technology


  • Vol. 3, Iss. 1 — Mar. 1, 2007
  • pp: 71–82

Design Considerations Between Color Gamut and Brightness for Multi-Primary Color Displays

Mang Ou-Yang and Shih-Wei Huang

Journal of Display Technology, Vol. 3, Issue 1, pp. 71-82 (2007)

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Color displays show a vivid colorful image by combination of three or above primary colors on every individual pixel. Brightness of color displays, however, strongly restricts the color gamut of displays. From the color mixing theory, the area of color gamut on the color coordination would shrink smaller when brightness grows up. At the maximal brightness, displays can show one system white point only. The difficulties how to obtain the maximal brightness under an assigned color point or color gamut have been a key issue for display manufacturers. The paper proposes a theory to analyze the relation between brightness and color gamut based on the multi-primary color display. Simulations estimate the boundary of color gamut of multi-primary color displays under required brightness which had been proved by experimental results of tri-primary color display. The theory can be applied on the color temperature (CT) design which experimental results show the fact that a display apparatus with higher color temperature could sacrifice brightness less compared to one with lower color temperature when color temperature of the display image needs to change. The theory provides a design guideline for optimization between color gamut, color temperature and brightness on multi-primary color displays.

© 2007 IEEE

Mang Ou-Yang and Shih-Wei Huang, "Design Considerations Between Color Gamut and Brightness for Multi-Primary Color Displays," J. Display Technol. 3, 71-82 (2007)

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