Method for characterizing an LCD projection display

Youngshin Kwak; Lindsay William MacDonald

doi:10.1117/12.420780

30 March 2001 Method for characterizing an LCD projection display

Youngshin Kwak, Lindsay William MacDonald

Proceedings Volume 4294, Projection Displays VII; (2001) https://doi.org/10.1117/12.420780
Event: Photonics West 2001 - Electronic Imaging, 2001, San Jose, CA, United States

Abstract

In this study, the characterization method for a typical desktop LCD color projector is reviewed. Measurements were made with a spectroradiometer to establish the additivity of the primaries, inter-channel dependence, color gamut, tone scale, contrast, spatial non-uniformity, temporal stability and viewing angle variation. In the case of tone characterization, LCD projectors show S-shaped curve between input digital values and output luminance unlike the conventional CRT monitor represented by a power function. Mathematical models to predict the S-shaped electro-optical transfer function have been empirically derive.d Four mathematical models including PLCC, GOG, S-Curve Model I and II were compared for their accuracy in predicting the colors generated by the display for arbitrary signal inputs. It is proven that the newly derived S-Curve Model I and II work successfully for an LCD projector.

Citation Download Citation

Youngshin Kwak and Lindsay William MacDonald "Method for characterizing an LCD projection display", Proc. SPIE 4294, Projection Displays VII, (30 March 2001); https://doi.org/10.1117/12.420780

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