Center or Corner? The Implications of Mura Locations on LCD Displays
With the consideration of Mura area and contrast, SEMI Standard provides a guideline for Mura inspection. However, for an end user, due to different tasks and environments, when interacting with a computer, Mura location on the screen may be an important factor affecting a user’s overall satisfaction with the LCD display. Regression analysis from this study showed that both Mura level and Mura location affect the perceived value of an LCD by a user. Further analysis showed that this perceived value may change across different Mura Level ranges. When Mura levels are high, the small correlation coefficient between markdown value of a display due to Mura and Mura location suggests that the display won’t be accepted by customers regardless of Mura location. On the other hand, if the Mura level is moderate, a higher correlation can be obtained, which means customers are sensitive to the Mura location.
KeywordsMura User evaluation LCD display Mura location
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- 1.Kim, W.S., Kwak, D.M., Song, Y.C., Choi, D.H., Park, K.H.: Detection of spot-type defects on liquid crystal display modules. Key Engineering Materials, 270–273 and 808–813 (2004)Google Scholar
- 2.Lee, J.Y., Yoo, S.I.: Automatic Detection of Region-Mura Defect in TFT-LCD. IEICE TRANS. INF. & SYST. E87-D, 2371–2378 (2004)Google Scholar
- 3.Otsu, N.: A threshold selection method from gray-level histograms. IEEE Trans. Syst. Man, Cybern. SMC-9, 62–66 (1979)Google Scholar
- 4.VESA Flat Panel Display Measurements Standard Ver. 2.0 (2001)Google Scholar
- 5.Wen, C.H.: FPD standard activities in Taiwan: Measurements for MURA and motion blur. In: Proceeding of The 6th International Meeting in Information Display & International Display Manufacturing Conference (2006)Google Scholar