Mr. Martin Hammer Profile

Martin Hammer

at ASML Netherlands BV

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Proceedings Article | 12 March 2013 Paper

Visibility of crosstalk for high-dynamic range displays

Marc Lambooij, Martin Hammer

Proceedings Volume 8648, 864807 (2013) https://doi.org/10.1117/12.2010552

KEYWORDS: LCDs, High dynamic range imaging, Visibility, Visualization, Stereoscopic displays, Organic light emitting diodes, Display technology, Quantization, Image quality, Calibration

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Crosstalk is one of the main stereoscopic display-related visual perceptual factors degrading image quality and causing visual discomfort. In this research the impact of high display contrast and high display luminance on the perception of crosstalk is investigated by using a custom-built high-dynamic range LCD (liquid-crystal display) in combination with a Wheatstone viewer. The displays’ opto-electrical response was characterized and the display calibrated, to independently vary luminance, contrast, and crosstalk (defined as (BW − BB) ⁄ (WW − BB)). The crosstalk visibility threshold was determined via a ‘one-up/two-down’ staircase method by fourteen participants for three different images that varied in luminance (125, 500, and 1,500 cd/m²) and contrast (1,000:1 and 2,500:1). Results show that an increase in luminance leads to a reduced crosstalk visibility threshold to a minimal value of 0.19% at 1,500 cd/m². The crosstalk visibility threshold was independent of the tested contrast levels, indicating that contrast levels above 100:1 do not affect crosstalk visibility thresholds. Important to note is that for displays with high contrast, the finite discrete levels of transmission in the LC-panel quantize the luminance levels, which propagates into and limits the accuracy of the crosstalk visibility threshold. In conclusion, by introducing OLEDs (high contrast), the system crosstalk will increase by definition, but visibility of crosstalk will not. By introducing high-dynamic range displays (high peak luminance), the crosstalk visibility threshold will be lower. As the absolute threshold levels of low-dynamic range displays are already very low (at or below 0.3%) this will result in little perceptual effect.

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