具有雙面微結構之高準直光學膜片設計

Abstract

本論文研究為製作高準直、高輝度的側入式背光模組增亮膜設計。此設計可應用於平板電腦、筆記型電腦、數位相機…等具中小型尺寸液晶螢幕的產品。 設計基礎來自具逆稜鏡陣列的增亮膜片，模擬結果顯示在相同光源下，設計膜片之正面峰值強度約為逆稜鏡膜片的兩倍，而能量使用率約98%。 設計之雙面微結構增亮膜可以自對位方式製造，且與模擬結果比較可發現強度峰值皆位於膜片法線方向，水平出光張角的半高全寬也同約為16度，可見其模擬結果可靠性。This thesis is the design of a highly collimating optical film with microstructures on both sides in edge-type backlight module. The design can be usedin tablet PCs, notebook computers, digital cameras ... etc. with small and medium-size LCD screen products. The concept is based on the inverse prism array brightness enhancement film, simulation results show that under the same light source, the peak intensity of the designed film is about twice the peak intensity of inverse prism film, and the energy utilization rate is about 98%. The designed highly collimating optical film can be manufactured by the self-alignment method, and the peak of the emitted light intensity can be found in the normal direction with the FWHM about 16 degrees. The Simulation results are similar to the measurement results, showing the reliability.