Simulating multiprimary LCDs on standard tri-stimulus LC displays

Fritz Lebowsky; Katrin Vonneilich; Thomas Bonse

doi:10.1117/12.766244

28 January 2008 Simulating multiprimary LCDs on standard tri-stimulus LC displays

Fritz Lebowsky, Katrin Vonneilich, Thomas Bonse

Proceedings Volume 6807, Color Imaging XIII: Processing, Hardcopy, and Applications; 680708 (2008) https://doi.org/10.1117/12.766244
Event: Electronic Imaging, 2008, San Jose, California, United States

Abstract

Large-scale, direct view TV screens, in particular those based on liquid crystal technology, are beginning to use subpixel structures with more than three subpixels to implement a multi-primary display with up to six primaries. Since their input color space is likely to remain tri-stimulus RGB we first focus on some fundamental constraints. Among them, we elaborate simplified gamut mapping architectures as well as color filter geometry, transparency, and chromaticity coordinates in color space. Based on a 'display centric' RGB color space tetrahedrization combined with linear interpolation we describe a simulation framework which enables optimization for up to 7 primaries. We evaluated the performance through mapping the multi-primary design back onto a RGB LC display gamut without building a prototype multi-primary display. As long as we kept the RGB equivalent output signal within the display gamut we could analyze all desirable multi-primary configurations with regard to colorimetric variance and visually perceived quality. Not only does our simulation tool enable us to verify a novel concept it also demonstrates how carefully one needs to design a multiprimary display for LCD TV applications.

Citation Download Citation

Fritz Lebowsky, Katrin Vonneilich, and Thomas Bonse "Simulating multiprimary LCDs on standard tri-stimulus LC displays", Proc. SPIE 6807, Color Imaging XIII: Processing, Hardcopy, and Applications, 680708 (28 January 2008); https://doi.org/10.1117/12.766244

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KEYWORDS

RGB color model

Optical filters

LCDs

Transparency

Visualization

Image processing

Spatial resolution

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