應用田口方法提升冷陰極燈管製程能力之研究

Enhance the process capability of the cold cathode fluorescent lamp by using Taguchi method.

蔡嘉峰(Chia-Feng Tsai)

指導教授 ： 陳雲岫

元智大學/工程學院/工業工程與管理學系/碩士(2012年)

摘要

摘要

冷陰極燈管是液晶電視背光源的關鍵零組件之一，而其發出的輝度表現直接影響液晶電視畫面的亮度，而亮度是消費者購買液晶電視的參考指標之一，所以面板廠對於冷陰極燈管的輝度表現相當重視。為此，冷陰極燈管廠無不以符合面板廠要求為目標。本研究即是以A公司提高冷陰極燈管輝度的製程能力為研究，透過田口方法找出冷陰極燈管的最佳生產條件，並使用六標準差的改善步驟逐一達成改善的目的。

本研究透過田口方法找出影響輝度最顯著因子為分散劑、Binder A、烤焙溫度，並利用SN比找出最佳生產條件，使陰極燈管之製程能力Cpk由改善前的0.62於改善後提升至1.19，改善後不僅縮小變異且避免生產之冷陰極燈管輝度特性低於下限規格。

關鍵字：冷陰極燈管、製程能力、田口方法、六標準差

關鍵字

冷陰極燈管 ； 製程能力 ； 田口方法 ； 六標準差

並列摘要

ABSTRACT
CCFL is one of the key components of LCD TV backlight, and its luminance directly contributes to the brightness of display panel. Panel manufacturers take luminance performance very seriously in that brightness is one of the reference index for consumers to buy TVs. Therefore, meeting needs of panel manufacturers became the goal for CCFL factories. The research studied on A company's manufacturing ability of improving CCFL luminance, found out the best production conditions of CCFL based on Taguchi method and achieved process improvement by applying Six Sigma .

The research found out the most influential factors of luminance ─ dispersant, Binder A, and baking temperature, and generated the best production conditions, improving the process capability with Cpk 0.62 up to 1.19. It not only reduced the variation but also kept the luminance of CCFL from being below the required
standard.

Keywords: Cold Cathode Fluorescent Lamp(CCFL), Process Capability,
Taguchi method, Six Sigma,

並列關鍵字

Cold Cathode Fluorescent Lamp(CCFL) ； Process Capability

參考文獻

中華民國品質學會第43屆年會暨第13屆全國品質管理研討會

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