本研究以偏光片作為研究對象，探討解決客訴問題所執行一連串的製程品質改善活動，8D問題解決法(8 Disciplines Problem Solving；8D)和PFMEA過程失效模式與效應分析(Process Failure Mode And Effects Analysis；PFMEA)之間的關聯性，藉由整合的方式成為新8D，能夠讓工程師具備風險評估能力，定義客訴優先順序，提升製程改善的能力。
研究前半段為探討偏光片結構與其製程方式，以意象尺度進行缺點型態分類，運用比5W2H分析法更龐大的架構6W3H1S分析法定義缺點問題。研究後半段導入新8D手法對應客訴問題進行風險等級評估，以特性要因法找出根本原因，經由再現實驗之結果提出改善對策，應用AHP層級分析法選擇最適化矯正措施，針對關鍵要因執行製程改善。
將矯正措施驗證成效之過程撰寫成8D Report ，連結到PFMEA、管制計畫，以利工程師鑑別失效細節、起因與關鍵風險，並更新作業規範，成為動態文件，進行製程巡檢以掌握關鍵細節和健全標準化作業，達到掌握客訴優先順序解決客訴與製程改善的管理目標。

This study takes polarizers as the research object, and discusses a series of process quality improvement activities implemented to solve customer complaints, 8D problem solving method (8 Disciplines Problem Solving; 8D) and PFMEA Process Failure Mode And Effects Analysis (Process Failure Mode And Effects Analysis) ; PFMEA), the new 8D through integration enables engineers to have risk assessment capabilities, define customer complaint priorities, and improve process improvement capabilities.
In the first half of the study, in order to discuss the structure of polarizer and its manufacturing method, the defect type is classified on the image scale, and the defect problem is defined by the 6W3H1S analysis method, which is a larger structure than the 5W2H analysis method. In the second half of the study, the new 8D method was introduced to assess the risk level of customer complaints, and the root cause was identified by the characteristic factor method, and improvement measures were proposed through the results of the reproduction experiment. improve.
Write the process of corrective measures to verify the effectiveness of the 8D report, and link it to the PFMEA and control plan, so that engineers can identify failure details, causes and key risks, and update the operation specifications to become dynamic documents. Process inspection to master key details and key risks. Improve standardized operations to achieve the management goal of grasping the priority of customer complaints, solving customer complaints and improving process.

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網路部分
王靖怡(2022年3月31日)。俄烏戰爭及高通膨影響，預估2022電競液晶顯示器出貨量約2610萬台，年增率收斂治14%。TrendForce新聞中心。https://trendforce.com.tw/presscenter/news/20220331-11182.html.

友達光電(2021)。液晶顯示器內部結構圖。https://trendforce.com.tw/presscenter/news/20220331-11182.html.