A method of generating predetermined luminance levels across an electronic visual display

摘要

A method of characterising an electronic visual display to substantially accurately and substantially precisely replicate a set of required luminance levels at any location across the electronic visual display is provide. The method comprises the steps of selecting a set of control points across the electronic visual display; selecting a colour-lightness levels (e.g. grey-level) range between 0 to2n-1 for a n-bit colour depth; measuring luminance at the selected control points and the selected colour-lightness levels; interpolating measured luminance levels at selected control points and the selected colour-lightness levels thereby deriving luminance at each pixel and each colour-lightness level of the display;generating a look-up-table, which comprises pairing colour-lightness levels to corresponding predetermined luminance levels. The method is applicable on both the grey and coloured light emitted by the EVD. A data acquisition rig for characterising an electronic visual display is also provided.