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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea

| PUBLISHED BY THE OPTICAL SOCIETY OF KOREA

  • Vol. 13, Iss. 1 — Mar. 25, 2009
  • pp: 152–157

Enhancement of the Optical Performance by Optimization of Optical Sheets in Direct-illumination LCD Backlight

Gyeung-Ju Park, Young-Gyu Kim, Jong-Hoon Yi, Jin-Hyuk Kwon, Jae-Hyun Park, Sung-Hoon Kim, Byoung-Ku Kim, Jong-Keun Shin, and Hoi-Sup Soh  »View Author Affiliations


Journal of the Optical Society of Korea, Vol. 13, Issue 1, pp. 152-157 (2009)


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Abstract

The structure of the prism sheet and the reflective polarizer sheet in the direct - illumination liquid crystal display (LCD) backlight is optimized and fabricated. The apex angle of the prism sheet was changed from 90 degree to 96.5 and 101.5 degree and the angular spread of the diffuser films attached on the reflective polarizer sheet was changed from 7 to 1.5 degrees. The measured view angle, the normal luminance, and the contrast ratio from the optimized backlight unit showed improved optical performances.

© 2009 Optical Society of Korea

OCIS Codes
(120.2040) Instrumentation, measurement, and metrology : Displays
(230.0230) Optical devices : Optical devices
(230.5480) Optical devices : Prisms

History
Original Manuscript: January 23, 2008
Revised Manuscript: February 25, 2009
Manuscript Accepted: February 25, 2009
Published: March 25, 2009

Citation
Gyeung-Ju Park, Young-Gyu Kim, Jong-Hoon Yi, Jin-Hyuk Kwon, Jae-Hyun Park, Sung-Hoon Kim, Byoung-Ku Kim, Jong-Keun Shin, and Hoi-Sup Soh, "Enhancement of the Optical Performance by Optimization of Optical Sheets in Direct-illumination LCD Backlight," J. Opt. Soc. Korea 13, 152-157 (2009)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-13-1-152


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References

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