擁有輕巧、省電等特性的液晶顯示器產品是日常生活中不可或缺，然而，為了確保產品品質，各家廠商均需投入產品的品質檢測。傳統人工檢測是由專業人員依據國際標準進行檢測。近年來有學者研究指出人的主觀因素使得人工檢測的可信度不佳，為了提升產品的競爭力，發展電腦檢測勢在必行；然而，電腦檢測沒有既定標準，所以需要發展電腦檢測的品管標準。本研究參考N. Otsu提出的閥值選取方法建立影像處理方法，目的為發展電腦檢測的品管標準。在影像處理的部分，首先，應用人因工程的觀點指出影響人工檢測的主觀因素，並應用於建立影像處理方法。在建立完成影像處理方法後，本研究建立光學特性的可靠度測試，通過實驗得到在高溫高濕環境下光學特性隨加熱時間變化的趨勢；同時，為了測試影像處理方法，本研究拍攝液晶顯示器的影像進行影像處理，並與實驗結果進行比較: 證實影像處理方法得到的平均灰階值以及二值化的白色面積可以作為電腦檢測的判斷標準。另一方面，有學者研究指出液晶顯示器內部光學薄膜的翹曲與液晶顯示器的Mura相關，因此本研究亦探討光學特性與材料機械性質之間的關係，以便瞭解造成Mura的根本原因。首先，本研究建立材料性質的可靠度測試，通過實驗得到在高溫高濕環境下材料性質隨加熱時間變化的趨勢，由實驗結果推測材料因吸水或受熱容易使材料產生翹曲；最後，本研究使用有限元素軟體ABAQUS模擬材料的翹曲情形，並與實驗結果進行比較: 推測液晶顯示器Mura分布情形與翹曲分布情形可能相關。綜合以上所述，本文發展電腦檢測的品管標準能提供工程應用中對液晶顯示器品質檢測設計上的參考依據，以及分析Mura與翹曲的關係，能提供工程應用中液晶顯示器結構設計上的參考依據。

Liquid Crystal Displays (LCDs) have become irreplaceable in our daily life and the display quality inspection and long term reliability become critical for product assurance. However, traditionally, such inspection is performed manually by human beings to find defects on LCDs. Such an approach could be biased easily by individual subjective opinions and, thus, a more objective evaluation methodology should be sought. In this dissertation, a computer-based inspection approach is proposed, through the systematic design of a LCD durability test. By capturing standard LCD display images during operation and performing essential image processing, it is possible to address defects quantitatively. Meanwhile, the correlation between the degradation of mechanical properties and optical performance, such as Mura, during such characterization is also investigated. The results should be useful for improving the display quality from a root cause viewpoint. In this work, AUO 7” LCDs subjected to temperatures between 55 - 90°C with a relative humility up to 90%, for up to 2000 hours, are used as the testing samples. After each heating period, the samples are then pictured and the images are analyzed. Meanwhile, a finite element simulation is performed to mimic the membrane deformation during heating and the correlation between the resulting warpage and the reported Mura is developed. It is believed that through this study, the proposed quality assurance method can provide more insightful information to evaluate the display quality. Meanwhile, the correlation between the mechanical property degradation and the display quality also provides a rational approach for improving device longevity based on fundamental mechanics.

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