The Boeing Company

Steven Thomas Beetz

Harold R Streid

Michael V Rohr

A method for achieving a target white chromaticity value and a target white light output value on a display device includes measuring a chromaticity value of a first primary color, a chromaticity value of a first secondary color, and a chromaticity value of a second secondary color on the display device using a photometer. The method also includes measuring a current white chromaticity value and a current white light output value on the display device using the photometer. The method also includes generating a plot of a color gamut triangle based at least partially upon the measured chromaticity value of the first primary color, the measured chromaticity value of the first secondary color, the measured chromaticity value of the second secondary color, and the measured current white chromaticity value.

System and method for determining a color mix on a three color display device with low luminance or illuminance

Generating luminance uniformity in a rear projection display system is provided. The method comprises calculating luminance generated by a projector on a rear projection screen relative to a design eye position in front of the screen. A baseline luminance is determined for each primary color according to the luminance. Luminance of all locations on the screen is corrected toward the baseline. Correction is allocated between an optical filter and electronic correction. Luminance is measured at calibration points on the screen. The electronic correction for a color image is adjusted according to the allocation and the luminance at the calibration points to produce a corrected color image for projection from the projector. The corrected color image is projected from the projector and through the optical filter. The optical filter is configured to dim specified areas within the corrected color image according to the allocation.

Growing community of inventors

St. Louis, MO, United States of America

Steven Thomas Beetz