本研究以TFT-LCD顯示器的大批量出貨方式為核心，送驗策略可分為整批送驗或分批送驗，因此整批送驗代表該批產品一次送驗、分批送驗代表該批產品拆成兩次送驗，將對以上策略方式進行分析與探討，並考量貨櫃的供需波動與運輸成本對決策的影響，因此透過建立一個製程能力指標(Cpk)與成本模型結合的方法來進行決策，以實現成本最小化並提升企業競爭力。然而在全球化浪潮的推動下國際貿易迅速發展且大部分依賴海運運輸，但全球供應鏈正受到挑戰如美中貿易戰、疫情導致港口擁堵、俄烏戰爭引發紅海危機航運時間拉長、巴拿馬運河乾旱限制運量，進而導致貨櫃的週轉天數拉長使貨櫃成本上升甚至出現缺貨櫃風險必須加價搶購貨櫃，另外TFT-LCD顯示器本身又面臨市場競爭加劇、成本上升及利潤壓力等多重夾擊。TFT-LCD關鍵品質特徵為亮度均齊度，藉由Cpk評估製程的穩定性為基礎，也採用MIL-STD-105E抽樣標準來探討如何達到最小化送驗成本並計算送驗成功機率與補貨需求，並針對訂購量、複檢成本、送驗成本、補貨成本、訂購貨櫃成本、貨櫃成本、額外貨櫃成本、退櫃費用，建立一套成本模型。成本模型首先分析一次或兩次送驗成本的臨界值後再加入貨櫃需求兩種情境：一次送驗與兩次送驗貨櫃數相同或一次送驗貨櫃數較少情境進行分析。研究結果依據成本模型數值求解後得出Cpk的成本臨界值，當Cpk高於此值時，一次送驗成本基本上低於兩次送驗成本。根據敏感度分析顯示，需加價訂購的需求貨櫃數、額外貨櫃成本對總成本影響顯著，而複驗成本、送驗成本等影響較小。另外結果表明，在貨櫃數為奇數或額外貨櫃成本較高時，一次送驗更具成本優勢，因此企業可根據實際Cpk、敏感度分析結果動態調整送驗策略與明確定義參數後再進行策略選擇，有助於品質控制與成本管理間取得平衡，增強長期競爭力。最後整合Cpk、抽樣計畫與多維成本因子，建構出適用於TFT-LCD顯示器的動態送驗決策模型，填補了既有研究忽略實際物流成本的空白。

This study sought to integrate the process capability index (Cpk) with a cost model, and a decision-making model that aimed at minimizing submitting costs which determines whether the single or dual submitting is more efficient in TFT-LCD production that was developed to enhance enterprise competitiveness. Global supply chains face challenges such as the U.S.-China trade war, port congestion due to the pandemic, the Red Sea crisis, and the Panama Canal drought, leading to extended container turnaround times and rising costs. Meanwhile, the TFT-LCD industry is under pressure from intensified market competition. Using brightness uniformity as the key quality characteristic of TFT-LCDs, the study adopts the MIL-STD-105E sampling standard and incorporates factors such as order quantity, re-inspection costs, inspection costs, replenishment costs, and container costs to establish a cost model. The study analyzes the cost critical value between single and dual submitting and considers two container demand scenarios (same number of containers for single and dual inspections, or more containers for dual inspections). The findings indicate that when the process capability index (Cpk) reaches the critical value, either a single submitting or a dual submitting strategy may be preferred. Based on Sensitivity analysis indicates that the number of containers requiring premium ordering and additional container costs significantly impact total costs. The proposed dynamic inspection decision model addresses the gap in existing research by incorporating logistics costs, providing practical guidance for the TFT-LCD industry and other similar industries.

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