Abstract

High-efficiency color filters composed of a microprism array, optical interference color filters, and a microlens array light compressor were developed to increase the optical throughput of liquid-crystal projection systems. The new devices utilize the energy of whole spectra by taking full advantage of a light compressor and interference dichroic filters to distribute the energy of spectra to the respective color pixel area. Thus high-efficiency micro-optical color filters allow efficient utilization of the energy of incident light and maximize the optical throughput of the projection system.

© 2000 Optical Society of America

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  1. C. M. Chang, K. W. Lin, K. V. Chen, S. M. Chen, H. P. D. Shieh, “A uniform rectangular illumination optical system for liquid crystal light valve projectors,” in EuroDisplay ’96, Proceedings of the Sixteenth International Display Research Conference (Society for Information Display, Santa Ana, Calif., 1996), pp. 257–260.
  2. H. Hamada, F. Funada, M. Hijikigawa, K. Awane, “Brightness enhancement of an LCD projector by a planar microlens array,” in Society of Information Display ’92, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1992), pp. 269–272.
  3. M. F. Weber, “Retroreflecting sheet polarizer,” in Society of Information Display ’92, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1992), pp. 427–429.
  4. Y. Itoh, J.-I. Nakamura, K. Yoneno, H. Kamakura, N. Okamoto, “Ultra-high-efficiency LC projector using a polarized light illuminating system,” in Society of Information Display ’97, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1997), pp. 993–996.
  5. J. Fuhrmann, B. Sautter, T. Kallfass, E. Lueder, “Enhancement of the light efficiency of LC projection systems by the use of dichroic color filters,” in Society of Information Display ’97, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1997), pp. 761–764.
  6. J. C. Yoo, S. M. Chen, S. F. Chen, H. P. D. Shieh, “Fabrication of thin film optical interference filters for LCD color filters,” (Institute of Electronics, Information, and Communication Engineers, Tokyo, Japan, 1994), Vol. 94, pp. 39–43.
  7. T. Yuzawa, T. Magara, Y. Imai, K. Kobayashi, “Microcontour EDM using thin electrode,” in Proceeding of the Spring Conference of the Japan Society of Precision Engineering (Japan Society of Precision Engineering, Tokyo, 1995).
  8. W. Daschner, M. Larsson, S. H. Lee, “Fabrication of monolithic diffractive optical elements by the use of e-beam direct write on an analog resist and a single chemically assisted ion-beam-etching step,” Appl. Opt. 34, 2534–2538 (1995).
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1997

1995

Awane, K.

H. Hamada, F. Funada, M. Hijikigawa, K. Awane, “Brightness enhancement of an LCD projector by a planar microlens array,” in Society of Information Display ’92, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1992), pp. 269–272.

Chang, C. M.

C. M. Chang, K. W. Lin, K. V. Chen, S. M. Chen, H. P. D. Shieh, “A uniform rectangular illumination optical system for liquid crystal light valve projectors,” in EuroDisplay ’96, Proceedings of the Sixteenth International Display Research Conference (Society for Information Display, Santa Ana, Calif., 1996), pp. 257–260.

Chen, K. V.

C. M. Chang, K. W. Lin, K. V. Chen, S. M. Chen, H. P. D. Shieh, “A uniform rectangular illumination optical system for liquid crystal light valve projectors,” in EuroDisplay ’96, Proceedings of the Sixteenth International Display Research Conference (Society for Information Display, Santa Ana, Calif., 1996), pp. 257–260.

Chen, S. F.

J. C. Yoo, S. M. Chen, S. F. Chen, H. P. D. Shieh, “Fabrication of thin film optical interference filters for LCD color filters,” (Institute of Electronics, Information, and Communication Engineers, Tokyo, Japan, 1994), Vol. 94, pp. 39–43.

Chen, S. M.

J. C. Yoo, S. M. Chen, S. F. Chen, H. P. D. Shieh, “Fabrication of thin film optical interference filters for LCD color filters,” (Institute of Electronics, Information, and Communication Engineers, Tokyo, Japan, 1994), Vol. 94, pp. 39–43.

C. M. Chang, K. W. Lin, K. V. Chen, S. M. Chen, H. P. D. Shieh, “A uniform rectangular illumination optical system for liquid crystal light valve projectors,” in EuroDisplay ’96, Proceedings of the Sixteenth International Display Research Conference (Society for Information Display, Santa Ana, Calif., 1996), pp. 257–260.

Daschner, W.

Däschner, W.

Fuhrmann, J.

J. Fuhrmann, B. Sautter, T. Kallfass, E. Lueder, “Enhancement of the light efficiency of LC projection systems by the use of dichroic color filters,” in Society of Information Display ’97, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1997), pp. 761–764.

Funada, F.

H. Hamada, F. Funada, M. Hijikigawa, K. Awane, “Brightness enhancement of an LCD projector by a planar microlens array,” in Society of Information Display ’92, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1992), pp. 269–272.

Hamada, H.

H. Hamada, F. Funada, M. Hijikigawa, K. Awane, “Brightness enhancement of an LCD projector by a planar microlens array,” in Society of Information Display ’92, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1992), pp. 269–272.

Hijikigawa, M.

H. Hamada, F. Funada, M. Hijikigawa, K. Awane, “Brightness enhancement of an LCD projector by a planar microlens array,” in Society of Information Display ’92, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1992), pp. 269–272.

Imai, Y.

T. Yuzawa, T. Magara, Y. Imai, K. Kobayashi, “Microcontour EDM using thin electrode,” in Proceeding of the Spring Conference of the Japan Society of Precision Engineering (Japan Society of Precision Engineering, Tokyo, 1995).

Itoh, Y.

Y. Itoh, J.-I. Nakamura, K. Yoneno, H. Kamakura, N. Okamoto, “Ultra-high-efficiency LC projector using a polarized light illuminating system,” in Society of Information Display ’97, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1997), pp. 993–996.

Kallfass, T.

J. Fuhrmann, B. Sautter, T. Kallfass, E. Lueder, “Enhancement of the light efficiency of LC projection systems by the use of dichroic color filters,” in Society of Information Display ’97, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1997), pp. 761–764.

Kamakura, H.

Y. Itoh, J.-I. Nakamura, K. Yoneno, H. Kamakura, N. Okamoto, “Ultra-high-efficiency LC projector using a polarized light illuminating system,” in Society of Information Display ’97, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1997), pp. 993–996.

Kobayashi, K.

T. Yuzawa, T. Magara, Y. Imai, K. Kobayashi, “Microcontour EDM using thin electrode,” in Proceeding of the Spring Conference of the Japan Society of Precision Engineering (Japan Society of Precision Engineering, Tokyo, 1995).

Larsson, M.

Lee, S. H.

Lin, K. W.

C. M. Chang, K. W. Lin, K. V. Chen, S. M. Chen, H. P. D. Shieh, “A uniform rectangular illumination optical system for liquid crystal light valve projectors,” in EuroDisplay ’96, Proceedings of the Sixteenth International Display Research Conference (Society for Information Display, Santa Ana, Calif., 1996), pp. 257–260.

Long, P.

Lueder, E.

J. Fuhrmann, B. Sautter, T. Kallfass, E. Lueder, “Enhancement of the light efficiency of LC projection systems by the use of dichroic color filters,” in Society of Information Display ’97, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1997), pp. 761–764.

Magara, T.

T. Yuzawa, T. Magara, Y. Imai, K. Kobayashi, “Microcontour EDM using thin electrode,” in Proceeding of the Spring Conference of the Japan Society of Precision Engineering (Japan Society of Precision Engineering, Tokyo, 1995).

Nakamura, J.-I.

Y. Itoh, J.-I. Nakamura, K. Yoneno, H. Kamakura, N. Okamoto, “Ultra-high-efficiency LC projector using a polarized light illuminating system,” in Society of Information Display ’97, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1997), pp. 993–996.

O’Shea, D. C.

Okamoto, N.

Y. Itoh, J.-I. Nakamura, K. Yoneno, H. Kamakura, N. Okamoto, “Ultra-high-efficiency LC projector using a polarized light illuminating system,” in Society of Information Display ’97, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1997), pp. 993–996.

Sautter, B.

J. Fuhrmann, B. Sautter, T. Kallfass, E. Lueder, “Enhancement of the light efficiency of LC projection systems by the use of dichroic color filters,” in Society of Information Display ’97, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1997), pp. 761–764.

Shieh, H. P. D.

C. M. Chang, K. W. Lin, K. V. Chen, S. M. Chen, H. P. D. Shieh, “A uniform rectangular illumination optical system for liquid crystal light valve projectors,” in EuroDisplay ’96, Proceedings of the Sixteenth International Display Research Conference (Society for Information Display, Santa Ana, Calif., 1996), pp. 257–260.

J. C. Yoo, S. M. Chen, S. F. Chen, H. P. D. Shieh, “Fabrication of thin film optical interference filters for LCD color filters,” (Institute of Electronics, Information, and Communication Engineers, Tokyo, Japan, 1994), Vol. 94, pp. 39–43.

Stein, R.

Suleski, T. J.

Weber, M. F.

M. F. Weber, “Retroreflecting sheet polarizer,” in Society of Information Display ’92, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1992), pp. 427–429.

Wu, C.

Yoneno, K.

Y. Itoh, J.-I. Nakamura, K. Yoneno, H. Kamakura, N. Okamoto, “Ultra-high-efficiency LC projector using a polarized light illuminating system,” in Society of Information Display ’97, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1997), pp. 993–996.

Yoo, J. C.

J. C. Yoo, S. M. Chen, S. F. Chen, H. P. D. Shieh, “Fabrication of thin film optical interference filters for LCD color filters,” (Institute of Electronics, Information, and Communication Engineers, Tokyo, Japan, 1994), Vol. 94, pp. 39–43.

Yuzawa, T.

T. Yuzawa, T. Magara, Y. Imai, K. Kobayashi, “Microcontour EDM using thin electrode,” in Proceeding of the Spring Conference of the Japan Society of Precision Engineering (Japan Society of Precision Engineering, Tokyo, 1995).

Appl. Opt.

Other

C. M. Chang, K. W. Lin, K. V. Chen, S. M. Chen, H. P. D. Shieh, “A uniform rectangular illumination optical system for liquid crystal light valve projectors,” in EuroDisplay ’96, Proceedings of the Sixteenth International Display Research Conference (Society for Information Display, Santa Ana, Calif., 1996), pp. 257–260.

H. Hamada, F. Funada, M. Hijikigawa, K. Awane, “Brightness enhancement of an LCD projector by a planar microlens array,” in Society of Information Display ’92, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1992), pp. 269–272.

M. F. Weber, “Retroreflecting sheet polarizer,” in Society of Information Display ’92, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1992), pp. 427–429.

Y. Itoh, J.-I. Nakamura, K. Yoneno, H. Kamakura, N. Okamoto, “Ultra-high-efficiency LC projector using a polarized light illuminating system,” in Society of Information Display ’97, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1997), pp. 993–996.

J. Fuhrmann, B. Sautter, T. Kallfass, E. Lueder, “Enhancement of the light efficiency of LC projection systems by the use of dichroic color filters,” in Society of Information Display ’97, Proceedings of the International Symposium (Society for Information Display, Santa Ana, Calif., 1997), pp. 761–764.

J. C. Yoo, S. M. Chen, S. F. Chen, H. P. D. Shieh, “Fabrication of thin film optical interference filters for LCD color filters,” (Institute of Electronics, Information, and Communication Engineers, Tokyo, Japan, 1994), Vol. 94, pp. 39–43.

T. Yuzawa, T. Magara, Y. Imai, K. Kobayashi, “Microcontour EDM using thin electrode,” in Proceeding of the Spring Conference of the Japan Society of Precision Engineering (Japan Society of Precision Engineering, Tokyo, 1995).

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Figures (8)

Fig. 1
Fig. 1

Configuration and function of HECF’s(1): (a) incident light on each pixel divided into three different spectra of R, G, and B; (b) light output of each pixel containing spectra derived from three respective pixels.

Fig. 2
Fig. 2

Configuration and function of HECF’s(2): Incident light is compressed by the light compressor and then divided into three primary colors, R, G, and B, to the respective color’s subpixels.

Fig. 3
Fig. 3

Configuration of MCA-CF’s: A series of glass rods are cemented with an interference color filter coated on the interface between each rod.

Fig. 4
Fig. 4

Measured spectra of red and yellow color filters in the MCA-CF’s.

Fig. 5
Fig. 5

Configuration of measurement system with a Minolta chromameter, XY-1.

Fig. 6
Fig. 6

Optical efficiency of HECF’s(1) and (2) and planar color filters.

Fig. 7
Fig. 7

Measured colorimetric coordinates of the CIE 1931 chromaticity diagram of three primary colors of R, G, and B obtained from HECF’s(1) and (2) and planar color filters, respectively. NTSC, National Television Systems Committee.

Fig. 8
Fig. 8

Photography of a microprism array of 2-mm pitch.

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