Abstract

The performance of liquid crystal displays and micro display projection systems is for a large part determined by the lamps and illumination optics they are using. Traditionally, gas discharge lamps are used, but light-emitting diode lamps are gradually taking over because of their attractive characteristics. We will discuss how the transfer to light-emitting diodes in the various display architectures changes the key performance parameters, remaining technical challenges, and prospects for future improvement.

© 2007 IEEE

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2007 (1)

M. R. Krames, "Status and future of high power light-emitting-diodes for solid state lighting," J. Display Technol. 3, (2007).

2005 (1)

G. Derra, "UHP lamp systems for projection applications," J. Phys. D: Appl. Phys. 38, 1995-3110 (2005).

2002 (1)

R. Mueller-Mach, G. O. Mueller, M. R. Krames, T. Trottier, "High-power phosphor-converted light-emitting diodes based on III-nitrides," IEEE J. Sel. Topics Quantum Electron. 8, 339-345 (2002).

IEEE J. Sel. Topics Quantum Electron. (1)

R. Mueller-Mach, G. O. Mueller, M. R. Krames, T. Trottier, "High-power phosphor-converted light-emitting diodes based on III-nitrides," IEEE J. Sel. Topics Quantum Electron. 8, 339-345 (2002).

J. Display Technol. (1)

M. R. Krames, "Status and future of high power light-emitting-diodes for solid state lighting," J. Display Technol. 3, (2007).

J. Phys. D: Appl. Phys. (1)

G. Derra, "UHP lamp systems for projection applications," J. Phys. D: Appl. Phys. 38, 1995-3110 (2005).

Other (32)

W. Folkerts, "LED backlighting concepts with high flux LEDs," SID'04 Dig. (2004) pp. 1226-1229.

Hamamatsu Photonics K.K., Solid State DivisionHamamatsu CityJapan“Color Sensor Module, RGB-LED Backlight Monitor for TFT-LCD” Hamatsu C9303-04 Datasheet, Cat. KACC1121E01 (2005).

G. Harbers, C. Hoelen, "High performance LCD backlighting using high intensity red, green and blue light emitting diodes," SID'01 Dig. (2001) pp. 702-5.

G. Harbers, W. Timmers, W. Sillevis-Smitt, "LED backlighting for LCD HDTV," Proc. 2nd Int. Display Manuf. Conf. (2002) pp. 181-184.

G. Harbers, S. Bierhuizen, "Performance of high power light emitting diodes in projection applications," SID'06 Dig. (2006) pp. 2007-2010.

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

I. Hiyama, M. Tsumura, T. Inuzuka, H. Haneishi, M. Yamaguchi, N. Ohyama, "Four-primary color 15-in. XGA TFT-LCD with wide color gamut," Proc. Eurodisplay 2002 (2002) pp. 827-830.

R. W. G. Hunt, "Displays: Past, present, and future," 11th Int. Display Workshop '04 (2004) pp. 3-6.

K. Käläntär, K. Shimabukuro, Y. V. Martynov, T. Heemstra, "White LED backlight for car navigation application using micro-structured light-guide plate," 2003 SID Vehicle Conf. (2003).

M. H. Keuper, S. Paolini, G. Harbers, P. Tsang, "Ultra-compact led based image projector for portable applications," SID 03 Dig. (2003) pp. 713-715.

M. H. Keuper, G. Harbers, S. Paolini, "RGB LED illuminator for pocket-sized projectors," SID 04 Dig. (2004) pp. 943-945.

J. H. Kim, "The novel technologies for achieving contrast ratio over 1:600 in IPS mode," SID 04 Dig. (2004) pp. 115-119.

Luxeon Emitter Tech. Datasheet DS25 http://www.philipslumileds.com.

Luxeon DCC Tech. Datasheet DS48 http://www.philipslumileds.com.

Luxeon K2 Emitter Tech. Datasheet DS51 http://www.philipslumileds.com.

Y. Martynov, H. Konijn, N. Pfeffer, S. Kuppens, W. Timmers, "High-efficiency slim LED backlight system with mixing light guide," SID 03 Dig. pp. 1259-1261.

Y. Martynov, J. W. H. Sillevis-Smitt, G. J. Abrahamse, W. A. G. Timmers, Illumination system and display Device U.S. Appl. US 2004/0227869 (2004).

M. Anandan, "LED backlight for LCD/TV monitor: Issues that remain," SID '06 Dig. pp. 1509-1512.

J. M. Sanchez, M. D. Fairchild, Proc. SPIE (2001) pp. 607-610.

J. Bergquist, C. Wennstam, "Field-sequential-color display with adaptive gamut," SID'06 Dig. (2006) pp. 1594-7.

A. H. J. van den Brandt, W. A. G. Timmers, Optical illumination system and projection apparatus comprising such a system U.S. Patent 5 098 184 (1992).

H. Ohtsuki, K. Nakanishi, A. Mori, S. Sakai, S. Yachi, W. Timmers, "18.1-inch XGH TFT-LCD with wide color reproduction using high power LED-backlighting," SID 02 Dig. (2002) pp. 1154-1157.

A. Perduijn, "Light output feedback solution for RGB LED backlight applications," SID 03 Dig. (2003) pp. 1254-1257.

S. Roth, I. Ben-David, M. Ben-Chorin, D. Eliav, O. Ben-David, "Wide gamut, high brightness multiple primaries single panel projection displays," SID 03 Dig. (2003) pp. 118-121.

S. Sakai, "A thin LED backlight system with high efficiency for backlighting 22-in. TFT LCDs," SID 04 Dig. (2004) pp. 1218-1221.

R. Smith-Gillespie, "Design considerations for LED backlights in large format color LCD," Proc. SID Tech. Symp. LEDs in Displays (2006).

T. Shiga, S. Mikoshiba, "Reduction of LCTV backlight power and enhancement of gray scale capability by using adaptive dimming technique," SID '03 Dig. (2003) pp. 1364-1367.

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

N. Takeo, S. Kuwahara, T. Shiga, S. Mikoshiba, "Application of adaptive dimming technique to a 17-in LCTV for reducing backlight power," Proc. IDW '04 Dig. (2004) pp. 671-674.

R. S. West, "High brightness direct LED backlight for LCD-TV," SID 03 Dig. (2003) pp. 1262-1265.

M. J. Zwanenburg, T. Dunn, A. Stich, W. Schwedler, L. Plötz, "High-efficiency LEDs for LCD backlights," SID 04 Dig. (2004) pp. 1222-1226.

M. Zeiler, J. Hüttner, L. Plötz, H. Ott, "Optimization parameters for LED backlighting solutions," SID 06 Dig. pp. 1524-1527.

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