Design of Side-Edged Backlight LED Lighting Module

• Main Authors: Ming-Yuan Chang, 張銘元
• Other Authors: 陳文瑞
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/7wctf3

碩士 === 國立虎尾科技大學 === 光電與材料科技研究所 === 99 === Recently technology of Light Emitting Diodes(LED)has replaced Cold Cathode Fluorescent Lamp(CCFL) in backlight function because of environmental protection. Backlight module adopts edge type design to develop ultra-thin application. This essay mainly discusses about the disadvantage of edge type design to reduce hot spot issue. This research will discuss about two parts, the first part is optical application theory—to presume possible optical reaction of LED components by adopting refraction, reflection and total reflection theory. The second part is about the application of optical simulation software—TracePro. By using this software to simulate the optical result and graph analysis of LED sample. Finally, the simulated database of view angle and lighting efficiency according to paralleled and horizontal lighting surface will be correlated to assure that LED components used in edge type backlight module will concentrate the light more efficiently resulting from horizontal lighting surface by changing lead frame curvature in both sides to successfully shrink view angle.