白光LED的藍光晶片波長對背光模組頻譜影響

The Effect of White LED’s Blue Chip Wavelength on Spectrum of LED Backlight Modules

吳明欣(Ming-Hsin Wu)

指導教授 ： 周勝次

元智大學/電機通訊學院/電機工程學系/碩士(2007年)

https://doi.org/10.6838/YZU.2007.00157

摘要

本論文研究關於白光LED作光源應用於背光模組上之頻譜探討，使用TracePro軟體模擬從白光LED光譜到背光模組產生出的光譜變化影響，並與實際量測分析所得值作比較研究，白光LED為使用藍光晶片並添加YAG 螢光粉所製成，並分別將不同波長藍光晶片所產生出的白光LED應用於1.8吋手機用背光模組上，並量測藍光晶片不同波長產生白光對於背光模組整體效應上光譜影響。進而定義出對白光LED使用藍色晶片波長對應於同一模組上波長選定的範圍。

關鍵字

LED；背光模組

並列摘要

The thesis is studying the effect of LED white light source wavelength on the spectrum of LCD backlight unit. With the help of“ TracePro” software, the result of simulation of light rays emitting from white LEDs to the backlight unit and compared it with the actual measurement of the system. The white LED is obtained by using blue InGaN chip doped with different amount of phosphorus YAG. By using different combination of blue wavelength chip and different mixture of phosphorus YAG, it’s capable of generating different spectrum of white light.

The spectrum from the backlight unit for different blue wavelength chip is measured. In this way the range of white light LED wavelength coped with industry standard can be defined.

並列關鍵字

LED；backlight unit

參考文獻

[2] 王信陽，“台灣TFT-LCD 關鍵零組件發展與競爭力分析”，光連第44 期。(2003)

[8] 陳瑞彬、溫仁佑、蔡瑞鴻、魏子軒，“自動化光學檢測-背光模組檢測機台”，科儀新知第二十八卷第三期。(2006)

[11] C. Huh, J. M. Lee, D. J. Kim, and S. J. Park, “Current blocking layer in GaN light-emitting diode”, Proc. SPIE - Int. Soc. Opt. Eng., 4445, pp. 165-171 (2001).

[15] A. Tagaya, M. Nagai, Y. Koike, K. YOkoyama,“Thin liquid-crystal display backlight system with hlghly scattering optical transmission polymers ” , APPLIED OPTICS ,40(34),6274(2001)。

[l] 顧鴻壽，光電液晶平面顯示器-技術基礎及應用，新文京出版社。(2004)