經由光子晶體結合LED封裝應用於LCD背光源之光形研究

Studying Light Patterns of LCD Backlight Sources with Integration of Photonic Crystals to LED Packaging

蔡坤佑(Kun-You Tsai)

指導教授 ： 王仲淳

元智大學/電機通訊學院/電機工程學系/碩士(2008年)

https://doi.org/10.6838/YZU.2008.00052

摘要

本論文為光子晶體結合LED封裝後改變LED光源之光形應用於TFT-LCD背光源之研究，首先討論光子晶體與LED之基本原理，進而介紹白光LED之原理及光子晶體特性與應用，利用兩者間之結合改變LED光源之光形，應用於TFT-LCD側向式背光源及直下式背光源，探討其光形應用可達成背光模組薄型化的目標。
最後利用光學模擬軟體(TracePro)建立TFT-LCD背光模組中導光板及背光源之架構，利用LED Chip與透鏡組合作為背光源應用，藉由其光形之改變說明利用幾何透鏡來模擬光子晶體改變LED光源光形的特性應用於TFT-LCD側向式及直下式背光源，並作一相關之分析與研究，以驗證光子晶體結合LED封裝後應用於TFT-LCD背光源之優劣。

關鍵字

光子晶體；發光二極體；幾何透鏡；側向式背光源；直下式背光源

並列摘要

This thesis is studying the changes of light patterns of LCD Backlight Source with integration of Photonic Crystals applying to LED Packaging.This work involve discussions of the basic principles of Photonic Crystals and LED at first, and then introduces the basic principles of white light LED, and then extends to Photonic Crystals characteristics and applications. By utilizing combination of the two elements, we are to change the light patterns of LED light sources,and applied to the side direction type TFT-LCD backlight sources and vertical type TFT-LCD backlight sources .We also probed light output patterns.The main objective is to attain the thinness of the LCD backlight source module.
This research utilizes the ”TracePro” optics simulation software to establish light guide plate and backlight sources of TFT-LCD backlight module.We used LED chip and lens that have already known for backlight source applications. By the changes of its light patterns,we utilized geometrical lens to simulate the characteristics of 2-D photonic crystals and changed LED light source patterns, applying to the side direction type TFT-LCD and vertical type TFT-LCD backlight sources. We performed relevant analysis and studies as well.Issues of LCD backlight source with Integrating of 2-D Photonic Crystals to LED Packaging as related to the quality of TFT-LCD backlight source were studied.

並列關鍵字

Photonic Crystals；LED Chip；Side Type Backlight Source；Vertical Type Backlight Source；Geometry Lens

參考文獻

【10】陳健中，蘇炎坤，「光子晶體發光二極體」，科儀新知，28

【11】國立中央大學光電科學研究所，「光子晶體的過去、現在與

guided mode extraction by photonic crystals”, IEEE

【38】訊技科技股份有限公司，TracePro快速學習手冊，五南出版

【41】溫志湧，謝祥暉，「高效能導光板之微結構排列設計與分