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Design of the Light Guide Plate with Stepped Micro Structures

In this thesis, we utilized CCFL as the sidelight of backlight module. At the same time, we designed many um-size and 45 degree stepped microstructures on the bottom of LGP to reach the goal of uniform plane light due to its diffraction effect. Then mostly incident light can be induced to the ejected surface by once of total reflection. This way can avoid light energy being wasted, which always happens in traditional LGP design because of several times of diffraction and reflection occurred in front of light being ejected out of LGP. Moreover, stepped microstructures LGP combines the functions of reflector, diffuser, and prism film, so it can lower material cost.
Relating to geometrical optics, we simulated our design with TracePro software to verify the effect we expect; relating to wave motion theory, we verified it by Definite Difference Method and programming with Matlab language. At last, we made samples to verify the above simulations and theories.

Identiferoai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0126108-003754
Date26 January 2008
CreatorsLien, Yen-Po
ContributorsNai-Hsiang Sun, Hung-Wen Chung, Tzyy-Sheng Horng, Hidenori Taga
PublisherNSYSU
Source SetsNSYSU Electronic Thesis and Dissertation Archive
LanguageCholon
Detected LanguageEnglish
Typetext
Formatapplication/pdf
Sourcehttp://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0126108-003754
Rightsnot_available, Copyright information available at source archive

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