Abstract

Color breakup is a lethal issue to conventional field-sequential-color LCDs. Several methods have been proposed to solve this problem. However, these solutions are either more than 180 Hz—the currently used LC mode is not sufficiently fast for this field rate—or they degrade the image quality while using a field rate of 120 Hz. To overcome these limitations, a 120 Hz Stencil Local Primary Desaturation, Stencil-LPD, is presented in this work. The 120 Hz Stencil-LPD method provides reduced but sufficient saturated backlight color to precisely present an image with less color distortion or color breakup. After optimizing a number of backlight segments, the experimental results demonstrate that the image fidelity is significantly improved and color breakup is greatly suppressed compared to the existing methods.

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  1. H. Hasabe, S. Kobayashi, "A full-color field-sequential LCD using modulated backlight," SID Symp. Dig. Tech. Papers (1985) pp. 81.
  2. T. Miyashita, "Wide viewing-angle display mode for active-matrix LCDs using a bend-alignment liquid-crystal cell," J. Soc. Inf. Display 3, 29-34 (1995).
  3. F. Yamada, "Sequential-color LCD based on OCB with an LED backlight," J. Soc. Inf. Display 10, 81-85 (2002).
  4. J. H. Lee, "Novel color-sequential transflective liquid crystal displays," J. Display Technol. 3, 2-8 (2007).
  5. A. Yohso, K. Ukai, "How color break-up occurs in the human-visual system: The mechanism of the color break-up phenomenon," J. Soc. Info. Display 14, 1127-1133 (2006).
  6. H. Yamakita, "Field-sequential color LCD driven by optimized method for color breakup reduction," Int. Display Workshop (2005) pp. 83-86.
  7. E. H. A. Langendijk, "Suppression of color breakup in color sequential multi-primary projection displays," J. Soc. Inf. Display 14, 325-329 (2006).
  8. K. Sekiya, T. Miyashita, T. Uchida, "A simple and practical way to cope with color breakup on field sequential color LCDS," SID Symp. Dig. Tech. Papers (2006) pp. 1661-1664.
  9. T. Ishinabe, "High performance OCB-mode for field sequential color LCDs," SID Symp. Dig. Tech. Papers (2007) pp. 987-990.
  10. T. W. Su, "Moving image simulation for high quality LCD TVs," J. Soc. Inf. Display 15, 71-78 (2007).
  11. H. C. Cheng, L. Rao, S.-T. Wu, "Color breakup suppression in field-sequential five-primary-color LCDs," J. Display Technol. 6, 229-234 (2010).
  12. F. C. Lin, "Color breakup suppression and low power consumption by stencil-FSC method in field-sequential LCDs," J. Soc. Inf. Display 17, 221-228 (2009).
  13. F. C. Lin, "Color filter-less LCDs in achieving High Contrast and low power consumption by Stencil Field- Sequential-Color method," J. Display Technol. 6, 98-106 (2010).
  14. F. C. Lin, "Color breakup reduction by 180 Hz Stencil-FSC method in large-sized color filter-less LCDs," J. Display Technol. 6, 107-112 (2010).
  15. F. C. Lin, "Color breakup suppression by Local primary Desaturation in Field-Sequential Color LCDs," J. Display Technol. 7, 55-61 (2011).
  16. F. C. Lin, "Image saturation improvement for 180 Hz stencil-FSC LCD with side-lit LED backlight," J. Display Technol. 8, 699-706 (2012).
  17. F. C. Lin, Y. Zhang, E. H. A. Langendijk, "Color breakup suppression by local primary desaturation in field-sequential color LCDs," J. Display Technol. 7, 55-61 (2011).
  18. Y. Zhang, F. C. Lin, E. H. A. Langendijk, "A field sequential color display with local primary desaturation backlight scheme," J. Soc. Inf. Display 17, 242-248 (2011).
  19. Z. Ge, "Electro-optics of polymer-stabilized blue phase liquid crystal displays," Appl. Phys. Lett. 94, 101104 (2009).
  20. K.-M. Chen, "Submillisecond gray-level response time of a polymer-stabilized blue-phase liquid crystal," J. Display Technol. 6, 49-51 (2010).
  21. E. Langendijk, "A novel spectrum-sequential display design with a wide color gamut and reduced color breakup," J. Soc. Inf. Display 15, 261-266 (2007).
  22. Y. Zhang, "A hybrid spatial-temporal color display with Local-Primary-Desaturation backlight scheme," J. Display Technol. 7, 665-673 (2011).
  23. Y. K. Cheng, "Two-field scheme: Spatiotemporal modulation for Field Sequential Color LCDs," J. Display Technol. 5, 385-390 (2009).
  24. C.-W. Chang, "Development of a 65-inch Color-Filter-Less LCD and Stencil-LPD method for high quality 120 Hz 2-field displays," SID Symp. Dig. Tech. Papers (2012) pp. 745-748.
  25. M. Hammer, "Method to improve color reproduction on a 120-Hz two-field color-sequential LCD," J. Soc. Inf. Display 20, 380-389 (2012).
  26. G. M. Johnson, M. D. Fairchild, "A top down description of S-CIELAB and CIEDE2000," Color Res. Appl. 28, 425-435 (2003).
  27. M. R. Luo, G. Cui, B. Rigg, "The development of the CIE 2000 colour difference formula," Color Res. Appl. 26, 340-350 (2001).

2012 (2)

F. C. Lin, "Image saturation improvement for 180 Hz stencil-FSC LCD with side-lit LED backlight," J. Display Technol. 8, 699-706 (2012).

M. Hammer, "Method to improve color reproduction on a 120-Hz two-field color-sequential LCD," J. Soc. Inf. Display 20, 380-389 (2012).

2011 (4)

Y. Zhang, "A hybrid spatial-temporal color display with Local-Primary-Desaturation backlight scheme," J. Display Technol. 7, 665-673 (2011).

F. C. Lin, Y. Zhang, E. H. A. Langendijk, "Color breakup suppression by local primary desaturation in field-sequential color LCDs," J. Display Technol. 7, 55-61 (2011).

Y. Zhang, F. C. Lin, E. H. A. Langendijk, "A field sequential color display with local primary desaturation backlight scheme," J. Soc. Inf. Display 17, 242-248 (2011).

F. C. Lin, "Color breakup suppression by Local primary Desaturation in Field-Sequential Color LCDs," J. Display Technol. 7, 55-61 (2011).

2010 (4)

2009 (3)

F. C. Lin, "Color breakup suppression and low power consumption by stencil-FSC method in field-sequential LCDs," J. Soc. Inf. Display 17, 221-228 (2009).

Z. Ge, "Electro-optics of polymer-stabilized blue phase liquid crystal displays," Appl. Phys. Lett. 94, 101104 (2009).

Y. K. Cheng, "Two-field scheme: Spatiotemporal modulation for Field Sequential Color LCDs," J. Display Technol. 5, 385-390 (2009).

2007 (3)

E. Langendijk, "A novel spectrum-sequential display design with a wide color gamut and reduced color breakup," J. Soc. Inf. Display 15, 261-266 (2007).

T. W. Su, "Moving image simulation for high quality LCD TVs," J. Soc. Inf. Display 15, 71-78 (2007).

J. H. Lee, "Novel color-sequential transflective liquid crystal displays," J. Display Technol. 3, 2-8 (2007).

2006 (2)

A. Yohso, K. Ukai, "How color break-up occurs in the human-visual system: The mechanism of the color break-up phenomenon," J. Soc. Info. Display 14, 1127-1133 (2006).

E. H. A. Langendijk, "Suppression of color breakup in color sequential multi-primary projection displays," J. Soc. Inf. Display 14, 325-329 (2006).

2003 (1)

G. M. Johnson, M. D. Fairchild, "A top down description of S-CIELAB and CIEDE2000," Color Res. Appl. 28, 425-435 (2003).

2002 (1)

F. Yamada, "Sequential-color LCD based on OCB with an LED backlight," J. Soc. Inf. Display 10, 81-85 (2002).

2001 (1)

M. R. Luo, G. Cui, B. Rigg, "The development of the CIE 2000 colour difference formula," Color Res. Appl. 26, 340-350 (2001).

1995 (1)

T. Miyashita, "Wide viewing-angle display mode for active-matrix LCDs using a bend-alignment liquid-crystal cell," J. Soc. Inf. Display 3, 29-34 (1995).

Appl. Phys. Lett. (1)

Z. Ge, "Electro-optics of polymer-stabilized blue phase liquid crystal displays," Appl. Phys. Lett. 94, 101104 (2009).

Color Res. Appl. (2)

G. M. Johnson, M. D. Fairchild, "A top down description of S-CIELAB and CIEDE2000," Color Res. Appl. 28, 425-435 (2003).

M. R. Luo, G. Cui, B. Rigg, "The development of the CIE 2000 colour difference formula," Color Res. Appl. 26, 340-350 (2001).

J. Display Technol. (2)

F. C. Lin, "Color breakup suppression by Local primary Desaturation in Field-Sequential Color LCDs," J. Display Technol. 7, 55-61 (2011).

F. C. Lin, "Image saturation improvement for 180 Hz stencil-FSC LCD with side-lit LED backlight," J. Display Technol. 8, 699-706 (2012).

J. Soc. Inf. Display (1)

M. Hammer, "Method to improve color reproduction on a 120-Hz two-field color-sequential LCD," J. Soc. Inf. Display 20, 380-389 (2012).

J. Display Technol. (2)

K.-M. Chen, "Submillisecond gray-level response time of a polymer-stabilized blue-phase liquid crystal," J. Display Technol. 6, 49-51 (2010).

Y. K. Cheng, "Two-field scheme: Spatiotemporal modulation for Field Sequential Color LCDs," J. Display Technol. 5, 385-390 (2009).

J. Display Technol. (6)

J. Soc. Inf. Display (7)

T. Miyashita, "Wide viewing-angle display mode for active-matrix LCDs using a bend-alignment liquid-crystal cell," J. Soc. Inf. Display 3, 29-34 (1995).

F. Yamada, "Sequential-color LCD based on OCB with an LED backlight," J. Soc. Inf. Display 10, 81-85 (2002).

E. H. A. Langendijk, "Suppression of color breakup in color sequential multi-primary projection displays," J. Soc. Inf. Display 14, 325-329 (2006).

T. W. Su, "Moving image simulation for high quality LCD TVs," J. Soc. Inf. Display 15, 71-78 (2007).

F. C. Lin, "Color breakup suppression and low power consumption by stencil-FSC method in field-sequential LCDs," J. Soc. Inf. Display 17, 221-228 (2009).

Y. Zhang, F. C. Lin, E. H. A. Langendijk, "A field sequential color display with local primary desaturation backlight scheme," J. Soc. Inf. Display 17, 242-248 (2011).

E. Langendijk, "A novel spectrum-sequential display design with a wide color gamut and reduced color breakup," J. Soc. Inf. Display 15, 261-266 (2007).

J. Soc. Info. Display (1)

A. Yohso, K. Ukai, "How color break-up occurs in the human-visual system: The mechanism of the color break-up phenomenon," J. Soc. Info. Display 14, 1127-1133 (2006).

Other (5)

H. Yamakita, "Field-sequential color LCD driven by optimized method for color breakup reduction," Int. Display Workshop (2005) pp. 83-86.

H. Hasabe, S. Kobayashi, "A full-color field-sequential LCD using modulated backlight," SID Symp. Dig. Tech. Papers (1985) pp. 81.

K. Sekiya, T. Miyashita, T. Uchida, "A simple and practical way to cope with color breakup on field sequential color LCDS," SID Symp. Dig. Tech. Papers (2006) pp. 1661-1664.

T. Ishinabe, "High performance OCB-mode for field sequential color LCDs," SID Symp. Dig. Tech. Papers (2007) pp. 987-990.

C.-W. Chang, "Development of a 65-inch Color-Filter-Less LCD and Stencil-LPD method for high quality 120 Hz 2-field displays," SID Symp. Dig. Tech. Papers (2012) pp. 745-748.

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