Application of Taguchi Method in Light-Emitting Diode Backlight Design for Wide Color Gamut Displays

Lin, Chi-Feng; Wu, Chih‐Cheng; Yang, Po-Hua; Kuo, Tsung-Yuan

doi:10.1109/jdt.2009.2023606

Cited by 48 publications

(13 citation statements)

References 17 publications

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“…The failure rate of an LED depends primarily on its life expectancy which is a function of its actual field of use. The application of Taguchi method in LED Backlight not only finds its effectiveness as described in [14], a PHM system based on the MahalanobisTaguchi-System (MTS) [15] can be used for diagnosis and maintenance prediction as shown in Fig. 2.…”

Section: Condition-based Monitoringmentioning

confidence: 99%

Reliability assessment of LED backlight in mobile devices

Fong

2012

2012 IEEE International Conference on Consumer Electronics (ICCE)

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This paper studies the premature failures of LED backlights used in mobile devices that are subject to different use conditions since the life expectancy of an identical electronic component may differ substantially under different operating environments while traditional reliability assessment methods documented in many electronics handbooks failure to address this fundamental difference.The work outlines specific approaches in condition-based monitoring for optimal reliability in the display unit of mobile devices.

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Section: Condition-based Monitoringmentioning

confidence: 99%

Reliability assessment of LED backlight in mobile devices

Fong

2012

2012 IEEE International Conference on Consumer Electronics (ICCE)

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“…Taguchi method is a powerful tool when the process is affected by a number of parameters and using this approach the entire parameter space can be studied with minimum number of experiments [9]. Moreover, lots of successful applications of Taguchi methods were reported in the past [10][11][12][13][14][15][16][17][18][19][20]. Hence, Taguchi's quality loss function approach was used in this study for simultaneous optimization of multiple response variables.…”

Section: Quality Loss Function Approachmentioning

confidence: 99%

Simultaneous optimization of multiple performance characteristics of carbonitrided pellets: a case study

John

2011

Int J Adv Manuf Technol

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The performance of a product is generally characterized by more than one response variable. Hence, the management often faces the problem of simultaneous optimization of many response variables. In recent years, a lot of literature has been published on various methodologies for tackling the multi-response optimization problems. Among them, the approach based on Taguchi's quality loss function is very popular. This paper discusses a case study on multiple response optimization in carbonitriding process. The surface hardness, case depth, and dimensional variation of carbonitrided pellets were simultaneously optimized using quality loss function methodology. The optimum obtained through loss function approach was found to be superior to the ones obtained through optimizing the response variables separately. The result obtained through the implementation of the solution is also presented in the study.

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“…In order to enhance the color gamut of an LCD device, the methods currently used backlight adjustment, color filter (CF) tuning, multi‐phosphor LED, circuit regulates, and so on, but most of the studies were for the NTSC color gamut . To achieve the standard color gamut in LCD device, taking into account the impact of color gamut on transmittance .…”

Section: Introductionmentioning

confidence: 99%

“…13 In order to enhance the color gamut of an LCD device, the methods currently used backlight adjustment, color filter (CF) tuning, multi-phosphor LED, circuit regulates, and so on, but most of the studies were for the NTSC color gamut. [14][15][16] To achieve the standard color gamut in LCD device, taking into account the impact of color gamut on transmittance. 17 We focus on analyzing the matching of backlight and color filter spectrums and their impacts on chroma, by adjusting and matching both parts of the spectrum of LED backlight and color filter, adopting new backlight and color filter, and selecting the appropriate thickness of color filter to achieve full coverage of the sRGB standard color gamut.…”

Section: Introductionmentioning

confidence: 99%

Achieving standard wide color gamut by tuning LED backlight and color filter spectrum in LCD

Zhan

Chao

et al. 2014

J Soc Info Display

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In order to achieve the standard red, green, and blue (sRGB) standard color gamut in color liquid crystal display and improve the image quality, the impact of the backlight and color filter spectrum on module's chroma was simulated and analyzed. The color gamut was enhanced by adjusting and optimizing the two parts of spectrums of LED backlight and color filter and by using red and green phosphor LED backlight to match the new color filter with an appropriate thickness. Experimental results show that: When the thickness of color filter is 2.2 µm, National Television System Committee color gamut increases from 65.3% to 74.9%, and sRGB matching rate enhances from 83.2% to 100%, achieving a full coverage of the sRGB standard color gamut, the transmittance of white light reaches 28.1%. Also, it is verified that shifting the peak position of the backlight and color filter spectrum to purification direction, as well as narrowing its half‐width can upgrade the color gamut. Meanwhile, the thicker the thickness of color filter is, the wider color gamut it has, based on the same pigment material.

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Application of Taguchi Method in Light-Emitting Diode Backlight Design for Wide Color Gamut Displays

Cited by 48 publications

References 17 publications

Reliability assessment of LED backlight in mobile devices

Reliability assessment of LED backlight in mobile devices

Simultaneous optimization of multiple performance characteristics of carbonitrided pellets: a case study

Achieving standard wide color gamut by tuning LED backlight and color filter spectrum in LCD

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