OSA's Digital Library

Journal of Display Technology

Journal of Display Technology


  • Vol. 5, Iss. 2 — Feb. 1, 2009
  • pp: 66–71

Design and Evaluation of Light Spread Function for Area-Adaptive LCD System

Yu-Kuo Cheng, Yen-Hsing Lu, Chung-Hao Tien, and Han-Ping Shieh

Journal of Display Technology, Vol. 5, Issue 2, pp. 66-71 (2009)

View Full Text Article

Acrobat PDF (827 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

  • Export Citation/Save Click for help


A methodology, based on two-dimensional super-Gaussian light spread functions (LSFs), was studied for the light-emitting-diode (LED) backlighting system in the high dynamic range (HDR) liquid crystal displays (LCDs). We proposed a novel LED-based optomechanical configuration to implement the desirable luminous pattern. A dual-liquid-crystal-panel system was constructed as a pseudo-HDR LCD to evaluate the super-Gaussian illumination. The proposed HDR scheme was verified via the current platform: overall luminance uniformity, contrast ratio and processing speed could be improved by factors of 1.55, 1.95–4.15, and 4.82, respectively. The design flexibility made the methodology applicable to any panel dimension and backlight division of the HDR LCDs, and to the conventional full-on backlighting LCDs as well.

© 2009 IEEE

Yu-Kuo Cheng, Yen-Hsing Lu, Chung-Hao Tien, and Han-Ping Shieh, "Design and Evaluation of Light Spread Function for Area-Adaptive LCD System," J. Display Technol. 5, 66-71 (2009)

Sort:  Year  |  Journal  |  Reset


  1. H. Seetzen, W. Heidrich, W. Stuerzlinger, G. Ward, L. Whitehead, M. Trentacoste, A. Ghosh, A. Vorozcovs, "High dynamic range display system," Proc. ACM SIGGRAPH 23, 760-768 (2004).
  2. F. C. Lin, C. Y. Liao, L. Y. Liao, Y. P. Huang, H. P. D. Shieh, P. J. Tsai, T. M. Wang, Y. J. Hsieh, "Inverse of mapping function (IMF) method for image quality enhancement of high dynamic range LCD TVs," SID Symp. Dig. Tech. Papers (2007) pp. 1343-1346.
  3. T. Shirai, S. Shimizukawa, T. Shiga, S. Mikoshiba, K. Käläntär, "RGB-LED backlights for LCD-TVs with 0D, 1D, and 2D adaptive dimming," SID Symp. Dig. Tech. Papers (2006) pp. 1520-1523.
  4. H. J. Peng, W. Zhang, C. K. Hung, C. J. Tsai, K. W. Ng, S. I. Chen, D. Huang, Y. L. Chueng, Y. Liu, "High contrast LCD TV using active dynamic LED backlight," SID Symp. Dig. Tech. Papers (2007) pp. 1336-1338.
  5. Y. H. Lu, Y. K. Cheng, C. H. Tien, "A localized pattern approach for high-dynamic-range display," SID Symp. Dig. Tech. Papers (2007) pp. 449-452.
  6. S. Swinkels, R. Muijs, E. Langendijk, F. Vossen, "Effect of backlight segmentation on perceived image quality for HDR display," Proc. IDW'06 (2006) pp. 1451-1454.
  7. J. A. Hoffnagle, C. M. Jefferson, "Beam shaping with a plano-aspheric lens pair," Opt. Eng. 42, 3090-3099 (2003).
  8. A. Parent, M. Morin, P. Lavigne, "Propagation of super-Gaussian field distributions," Opt. Quantum Electron. 24, S1071-S1079 (1992).
  9. Philips LumiledsLuxeon III Emitter Technical Datasheet (03/31/2006) http://www.lumileds.com/pdfs/DS45.PDF (Retrieved Mar. 17, 2008).
  10. K. Käläntär, "Functional light-guide plate for backlight unit," SID Symp. Dig. Tech. Papers (1999) pp. 764-767.
  11. C. H. Tien, Y. H. Lu, Y. J. Yao, "Tandem light-guides with micro line-prism arrays for field-sequential-color scanning backlight module," J. Display Technol. .
  12. Vikuiti™ Business Partner WebsiteVikuiti™ BEF III. http://multimedia.3m.com/mws/mediawebserver?66666UuZjcFSLXTtlx&2MXfcEVuQEcuZgVs6EVs6E666666 (Retrieved Mar. 17, 2008).
  13. K. Erwin, Introductory Mathematical Statistics (Wiley, 1970).
  14. ASUSTek Computer Inc.LCD Monitors, 19$^{\prime\prime}$ Widescreen VW193D http://usa.asus.com/products.aspx?l1=10&12=87&13=545&14=0&model=1688&modelmenu=2 (Retrieved Nov. 23, 2008).

Cited By

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited