Abstract

This paper proposes a mixed color sequential (MCS) algorithm with high contrast enhancement technique in RGB light-emitting diode (LED) backlight display. Owing to synchronous control of liquid crystal display (LCD) and LED panels, high quality image with suppressed color breakup (CBU) and motion blur effects is achieved by our novel color sequential technique. Importantly, MCS algorithm is useful for color filter-less optical compensated bend (OCB) panel display for alleviating CBU and motion blur effects. Furthermore, high contrast image is also presented on LCD panel because of mixed red–green–blue (RGB) and cyan–magenta-yellow (CMY) backlights with optimum power consumption. In other words, MCS algorithm with high contrast enhancement technique can have the better performance compared with other field sequential color techniques. Experimental results demonstrate by an actual RGB backlight module for 32-in 1366*768 LCD panel the improvement of CBU and motion blur effects.

© 2007 IEEE

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References

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  2. T. Shirai, S. Shimizukawa, T. .Shiga, S. Mikoshiba, K. Kalantar, "RGB-LED backlights for LCD-TVs with 0D, 1D, and 2D adaptive dimming," SID'06 Dig. 44.4 1520-1523.
  3. J. B. Eichenlaub, Field sequential color illumination system for liquid crystal display U.S. Patent 5 428 366 (1995).
  4. K. Miyazawa, Panel type color display device and system for processing image information U.S. Patent 6 078 304 (2000).
  5. A. Yohso, K. Ukai, "How color break-up occurs in the human visual system: Mechanism of color break-up phenomenon," SID'06 Dig. 25.2 1223-1228.
  6. R. Van Dijk, J. A. Shimizu, A system and method for motion compensation of image planes in color sequential displays U.S. Patent 6 831 948 (2004).
  7. S. Hong, B. H. Shin, T.-S. Kim, B. Berkeley, S. S. Kim, "Advanced method for motion blur reduction in LCDs," SID'05 Dig. P-51 466-469.
  8. K. H. Shin, J. Y. Ahn, K. D. Kim, H. H. Shin, I. J. Chung, "Acceptable motion blur levels of a LCD TV based on human visual system," SID' 06 Dig. P-25 287-290.
  9. T. Kurita, "Moving picture quality improvement for hold-type AM-LCDs," SID'01 Dig. 986-989.
  10. T. Shiga, S. Kuwahara, N. Takeo, S. Mikoshiba, "Adaptive dimming technique with optically isolated lamp groups," SID'05 Dig. 18.1 992-995.
  11. J. Bergquist, C. Wennstam, SID'06 Dig. 49.2 1594-1597.
  12. J. H. Stessen, J. G. R. van Mourik, "Algorithm for contrast reserve, backlight dimming, and backlight boosting on LCD," SID'06 Dig. 26.4 1249-1252.
  13. J. Hirakata, A. Shingai, Y. Tanaka, K. Ono, T. Furuhashi, "Super-TFT-LCD for moving picture images with the blink backlight system," SID'01 Dig. 35.2 990-993.
  14. H. Pan, X. Feng, S. Daly, "Quantitative analysis of LCD motion blur and performance of existing approaches," SID'05 Dig. 51.4 1590-1593.
  15. K. Sekiya, N. Nakamura, "Eye-trace integration effect on the perception of moving pictures and a new possibility for reducing blur on hold-type displays," SID'02 Dig. 930-933.

SID' 06 Dig. P-25 (1)

K. H. Shin, J. Y. Ahn, K. D. Kim, H. H. Shin, I. J. Chung, "Acceptable motion blur levels of a LCD TV based on human visual system," SID' 06 Dig. P-25 287-290.

SID'01 Dig. (1)

T. Kurita, "Moving picture quality improvement for hold-type AM-LCDs," SID'01 Dig. 986-989.

SID'01 Dig. 35.2 (1)

J. Hirakata, A. Shingai, Y. Tanaka, K. Ono, T. Furuhashi, "Super-TFT-LCD for moving picture images with the blink backlight system," SID'01 Dig. 35.2 990-993.

SID'02 Dig. (1)

K. Sekiya, N. Nakamura, "Eye-trace integration effect on the perception of moving pictures and a new possibility for reducing blur on hold-type displays," SID'02 Dig. 930-933.

SID'05 Dig. 18.1 (1)

T. Shiga, S. Kuwahara, N. Takeo, S. Mikoshiba, "Adaptive dimming technique with optically isolated lamp groups," SID'05 Dig. 18.1 992-995.

SID'05 Dig. 51.4 (1)

H. Pan, X. Feng, S. Daly, "Quantitative analysis of LCD motion blur and performance of existing approaches," SID'05 Dig. 51.4 1590-1593.

SID'05 Dig. 36.3L (1)

K. Käläntär, T. Kishimoto, K. Sekiya, T. Miyashita, T. Uchida, "Spatio-temporal scanning backlight for color-field sequential optically compensated bend liquid-crystal display," SID'05 Dig. 36.3L 1316-1319.

SID'05 Dig. P-51 (1)

S. Hong, B. H. Shin, T.-S. Kim, B. Berkeley, S. S. Kim, "Advanced method for motion blur reduction in LCDs," SID'05 Dig. P-51 466-469.

SID'06 Dig. 25.2 (1)

A. Yohso, K. Ukai, "How color break-up occurs in the human visual system: Mechanism of color break-up phenomenon," SID'06 Dig. 25.2 1223-1228.

SID'06 Dig. 26.4 (1)

J. H. Stessen, J. G. R. van Mourik, "Algorithm for contrast reserve, backlight dimming, and backlight boosting on LCD," SID'06 Dig. 26.4 1249-1252.

SID'06 Dig. 44.4 (1)

T. Shirai, S. Shimizukawa, T. .Shiga, S. Mikoshiba, K. Kalantar, "RGB-LED backlights for LCD-TVs with 0D, 1D, and 2D adaptive dimming," SID'06 Dig. 44.4 1520-1523.

SID'06 Dig. 49.2 (1)

J. Bergquist, C. Wennstam, SID'06 Dig. 49.2 1594-1597.

Other (3)

J. B. Eichenlaub, Field sequential color illumination system for liquid crystal display U.S. Patent 5 428 366 (1995).

K. Miyazawa, Panel type color display device and system for processing image information U.S. Patent 6 078 304 (2000).

R. Van Dijk, J. A. Shimizu, A system and method for motion compensation of image planes in color sequential displays U.S. Patent 6 831 948 (2004).

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