LED背光模組之光學成效設計

The Design of Optical Performance for LED Backlight Module

張永忠(Yung-Jung Chang)

指導教授 ： 涂世雄

中原大學/工學院/電機工程研究所/碩士(2007年)

https://doi.org/10.6840/cycu200700664

摘要

摘要(中)

本論文提出一個背光模組之優化的設計，以Lambertian LED為架構，運用光線折射原理，設計出一款擴散折射器，使光線透過擴散折射器後，提高均勻度與輝度並達到最佳混光效果；此設計與Lumiled公司設計的直下式邊射型LED(side emitter LED)相較，改善了背光模組均一性效果不佳等問題。
首先，採用TracePro光學模擬軟體，針對以LED為光源的背光模組進行模擬、分析，設計出一個將LED chip直接鑲嵌在背光模組的底面基版形成LED 光線矩陣，並在線列上搭建一條polymer材質之混光光罩，使光線經由混光光罩，將光線均勻導引到背光模組中，藉以達到均一性的目的。
本研究主要貢獻是:我們將此背光模組結構作進一步之設計，使混光光罩在不影響光學特性下，在長度軸與寬度軸擁有無限延伸之能力，而能應用在各尺寸TFT-LCD直下式背光模組中。

關鍵字

直下式背光模組 ； 混光光罩

並列摘要

Abstract
In this thesis, we propose the design of optimization for backlight module, based on the Lambertian LED. We used light reflection to design the compound mask. When light is passing through the compound mask, it could upgrade brightness, smooth and best mixing. Compared with the traditional Direct Type side emitter LED, the design could make the uniformity way better.
First, we use the optical software “TracePro” to build, simulate, and analyze the light and design a kind of on-board chip for led backlight module. The Led chips are soldered on the base board of backlight directly. Then we built up polymer light compound mask on the ranks of led chips .The light –mixing will guide the light to the cavity of the backlight uniformly, and the illumination and color are well mixed in this way.
The contribution is that the designed the structure of backlight modules again. Our compound mask has the “ability to extend” in the length and width axle at the same time (not limited by any panel of size). Those designs applied to all size TFT-LCD for Direct Type backlight modules.

並列關鍵字

compound mask ； direct type backlight module

參考文獻

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