17 July 2013 Optical characterization of display screens by speckle patterns
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Abstract
In recent years, flat-panel display (FPD) technology has undergone great development, and now FPDs appear in many devices. A significant element in FPD manufacturing is the display front surface. Manufacturers sell FPDs with different types of front surfaces, which can be matte (also called anti-glare) or glossy screens. Users who prefer glossy screens consider these displays to show more vivid colors compared with matte-screen displays. However, on the glossy screens, external light sources may cause unpleasant reflections that can be reduced by a matte treatment in the front surface. In this work, we present a method to characterize FPD screens using laser-speckle patterns. We characterize three FPDs: a Samsung XL2370 LCD monitor of 23 in. with matte screen, a Toshiba Satellite A100 LCD laptop of 15.4 in. with glossy screen, and a Grammata Papyre 6.1 electronic book reader of 6 in. with ePaper screen (E-ink technology). The results show great differences in speckle-contrast values for the three screens characterized and, therefore, this work shows the feasibility of this method for characterizing and comparing FPDs that have different types of front surfaces.
© 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
Antonio M. Pozo, José J. Castro, Manuel Rubino, "Optical characterization of display screens by speckle patterns," Optical Engineering 52(10), 101915 (17 July 2013). https://doi.org/10.1117/1.OE.52.10.101915 . Submission:
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