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http://dx.doi.org/10.5370/KIEEP.2012.61.2.093

High Brightness Prism Light-guide Plate for TFT-LCDs Using Optical Simulation and Novel Injection Mold Process  

Han, Jeong-Min (서일대학교 전기공학과)
Shon, Jin-Geun (가천대학교 전기공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers P / v.61, no.2, 2012 , pp. 93-96 More about this Journal
Abstract
We have designed high performance prism light-guide plate (LGP) in 17 inch TFT-LCD. In test result to embody high brightness BLU in case of LGP of base and upper surface with 17 inch, thickness 8mm adding prism construct. Using optical simulation, we forecast the brightness and uniformity in LGP with prism structure. And we adopted novel injection mold method and Nickel stamper to make actual evolution sample. Novel injection mold process has steady heating time zone in heat cycle time of injection mold process. For this novel heat cycle control, we achieved above 90[%] height prism structure as our design. It is superior brightness improvement than previous that of printing form about some 20[%] and in this course to embody actual material it succeeded prism LGP production by 17 inch injection form process.
Keywords
LGP (Light Guide Plate); Stamper; Prism structure; TFT-LCD; BLU(Back Light Unit);
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