The current market demands for thin-film transistor (TFT) liquid crystal display (LCD) is high; however, the LCD televisions still have contrast ratio-related issues. To resolve this, researchers conventionally use trial and error methods for parameter optimization and adjustment. However, this method is slow and can delay the development of new products. Therefore, this study focused on the high contrast ratio of the in-plane switching (IPS) panel. The Define–Measure–Analyze–Design–Verify procedure, comprising the methodology of the Design for Six Sigma, was used to help the researchers enhance the ultra-high contrast ratio of LCD panels. In this study, customer requirements were confirmed, after which the quality function deployment method was used to establish the technical requirements of the enhanced high contrast ratio of LCD. The contradiction matrix of TRIZ was then used to find the corresponding principles and thus propose the design scheme for the LCD contrast ratio. Methodologies, such as design failure modes and effect analysis, Taguchi’s parameter design, and reliability tests were used to enhance the ultra-high LCD contrast ratio. After the implementation of an actual case, the ultra-high contrast ratio of LCD panel was enhanced to 1000000:1; the benefits of such an improvement exceeded U.S. \\(9.5 million. This has also driven market orders for TFT IPS LCD. This study can serve as a reference for product design, product performance enhancement, pilot run yield improvement, and patent applications of LCD panel plants.

中文翻译：

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使用六西格玛学科设计提高 TFT-LCD 对比度

当前市场对薄膜晶体管（TFT）液晶显示器（LCD）的需求量很大；然而，液晶电视仍然存在与对比度相关的问题。为了解决这个问题，研究人员通常使用试错法进行参数优化和调整。但是，这种方法速度慢，并且会延迟新产品的开发。因此，本研究侧重于面内切换 (IPS) 面板的高对比度。定义-测量-分析-设计-验证程序，包括六西格玛设计的方法，用于帮助研究人员提高 LCD 面板的超高对比度。本研究在确认客户需求后，采用质量功能展开方法，建立LCD增强型高对比度的技术要求。然后利用TRIZ的矛盾矩阵找出相应的原理，从而提出LCD对比度的设计方案。使用设计失效模式和效果分析、田口参数设计和可靠性测试等方法来提高超高 LCD 对比度。实际案例实施后，液晶面板超高对比度提升至1000000:1；这种改进带来的收益超过美国\（950万美元。这也带动了TFT IPS LCD的市场订单。该研究可为LCD的产品设计、产品性能提升、试运行良率提高和专利申请提供参考）面板植物。通过设计失效模式及效果分析、田口的参数设计、可靠性测试等，提升超高LCD对比度。实际案例实施后，液晶面板超高对比度提升至1000000:1；这种改进带来的收益超过美国\（950万美元。这也带动了TFT IPS LCD的市场订单。该研究可为LCD的产品设计、产品性能提升、试运行良率提高和专利申请提供参考）面板植物。通过设计失效模式及效果分析、田口的参数设计、可靠性测试等，提升超高LCD对比度。实际案例实施后，液晶面板超高对比度提升至1000000:1；这种改进带来的收益超过美国\（950万美元。这也带动了TFT IPS LCD的市场订单。该研究可为LCD的产品设计、产品性能提升、试运行良率提高和专利申请提供参考）面板植物。