薄膜電晶體液晶顯示器產業－限制理論需求拉式生產方法之應用研究

Abstract

傳統上，供應鏈傳統以預測需求的方式決定供應鏈中區域倉庫的庫存量，並藉此進行供應鏈的存貨管理，然而，需求劇烈的不確定性往往令各種預測方法失效。為了解決此一供應鏈難題，本研究將應用限制理論（Theory of Constraints, TOC）觀念，使用其發展出來的需求拉式（Demand-Pull）與緩衝管理（Buffer Management）生產方式，並以我國一家生產液晶面板公司面板廠Cell 製程為例，進行實證分析。驗證結果顯示，限制理論的存貨管理方式可以幫助公司降低整體的庫存水準並同時滿足客戶需要，而其運作結果在平均庫存（Average Inventory）、有效產出元•天（Throughput-Dollar-Days, TDD）及存貨元•天（Inventory-Dollar-Days, IDD）的績效指標的表現皆優於傳統預測需求方式之表現。

In order to solve problems of inventory management in a supply chain, many industries used to calculate the stock quantities by varies forecasting methods traditionally. However, the uncertainty with violent demand often makes various kinds of prediction methods lose effectiveness. This research apply two methods of Theory of Constraints（TOC）, Demand-Pull and Buffer management, to be a solution of inventory management problem. Therefore, in this research, TFT-LCD factory is as a case to test the feasibility and validity of the solution. The result shows that TOC demand-pull and buffer management is better than the traditional forecasting methods.