A typical desktop LCD projector was characterised. Having determined the op
timum settings of the brightness and contrast controls, measurements were m
ade with a spectroradiometer to establish the additivity of the primaries,
inter-channel dependence, colour gamut, tone scale, contrast, spatial non-u
niformity, temporal stability and viewing angle variation. Four mathematica
l models were compared for their accuracy in predicting the colours generat
ed by the display for arbitrary signal inputs. A new model was developed fo
r the S-shaped electro-optical transfer function of the LCD device, and was
extended to predict the anomalous colour tracking of the primaries. (C) 20
00 Elsevier Science B.V. All rights reserved.