Abstract

A novel transflective liquid crystal display architecture and its system driving schemes are proposed. In the reflective mode, the ambient light is used to readout the displayed images. While in the transmissive mode, a color-sequential light emitting diode backlight is used to eliminate the color filters. Under such device configuration, several advantages such as increased brightness and maximized color saturation for both transmissive and reflective modes can be achieved.

© 2007 IEEE

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Appl. Phys. Lett. (1)

C. J. Yu, D. W. Kim, S. D. Lee, "Multimode transflective liquid crystal display with a single cell gap using a self-masking process of photoalignment," Appl. Phys. Lett. 85, 5146-5148 (2004).

IEEE J. Solid-State Circuit (1)

S. Lee, J. C. Morizio, K. M. Johnson, "Novel frame buffer pixel circuits for liquid-crystal-on-silicon microdisplays," IEEE J. Solid-State Circuit 39, 132-139 (2004).

J. Display Technol. (1)

Jpn. J. Appl. Phys. Part 1 (1)

S. H. Lee, K. H. Park, J. S. Gwag, T. H. Yoon, J. C. Kim, "A multimode-type transflective liquid crystal display using the hybrid-aligned nematic and parallel-rubbed vertically aligned modes," Jpn. J. Appl. Phys. Part 1 42, 5127-5132 (2003).

Sharp Tech. J. (1)

K. Fujimori, Y. Narutaki, N. Kimura, "High-transmissive advanced TFT LCD technology," Sharp Tech. J. (2003) Special Papers 1.

Other (14)

M. G. Clark, I. A. Shanks, "A field-sequential color CRT using a liquid crystal color switch," SID Symp. Tech. Dig. (1982) pp. 172-173.

R. Vatne, P. A. Johnson, Jr.P. J. Bos, "A LC/CRT field-sequential color display," SID Symp. Tech. Dig. (1983) pp. 28-29.

H. Hasebe, S. Kobayashi, "A full-color field-sequential LCD using modulated backlight," SID Symp. Tech. Dig. (1985) pp. 81-83.

J. Florence, L. A. Yoder, "Display system architectures for Digital Micromirror Device (DMD) based projectors," Proc. SPIE (1996) pp. 193-208.

D. Armitage, I. Underwood, S. T. Wu, Introduction to Microdisplays (Wiley, 2006).

L. Arend, J. Lubin, J. Gille, J. Larimer, "Color breakup in sequentially scanned LCDs," SID Symp. Tech. Dig. (1994) pp. 201-204.

M. Mori, T. Hatada, K. Ishikawa, T. Saishouji, O. Wada, J. Nakamura, N. Terashima, "Mechanism of color breakup on field-sequential color projectors," SID Symp. Tech. Dig. (1999) pp. 350-353.

SeeSamsung SDI's UFS LCD Principle http://www.samsungsdi.com/contents/en/product/lcd/type02.html.

J. H. Woo, J. J. Yoo, G. H. Kim, S. C. Lee, C. R. Seo, "Optimization of LED backlight flashing time for field sequential color LCDs," Proc. IDW (2003) pp. 1681-1682.

J. Hirakata, A. Shingai, Y. Tanaka, K. Ono, "Super-TFT-LCD for moving picture images with the blink backlight system," SID Symp. Tech. Dig. (2001) pp. 990-993.

R. D. Ketchpel, S. Barbara, Transflector U.S. Patent 4 040 727 (1977).

M. Shimizu, Y. Itoh, M. Kubo, Liquid crystal display device U.S. Patent 6 341 002 B1 (2002).

K. H. Liu, C. Y. Cheng, Y. R. Shen, C. M. Lai, C. R. Sheu, Y. Y. Fan, C. C. Chen, I. J. Lin, "A novel double gamma driving transflective TFT LCD," Proc. Int. Display Manuf. Conf. (2003) pp. 215-218.

K. J. Kim, J. S. Lim, T. Y. Jung, C. Nam, B. C. Ahn, "A new transflective TFT-LCD with dual color filter," Proc. Int'l Display Workshops (2002) pp. 433-436.

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