THREE-PRIMARY-COLOUR COMBINATION GAMMA CALIBRATION

摘要

A method for three-primary-colour combination gamma calibration. Three-primary-colour combination gamma calibration is applied to two electro-optic display systems with three primary colours having intrinsic wavelengths which are not completely the same or to a single electro-optic display system. Not only the electro-optic nonlinearity is calibrated but also an output dominant wavelength of the system is calibrated. This calibration is achieved by way of actively bringing in and superposing other primary colour components, and the superposed components are a function of the calibrated primary colours in the whole colour gamut space. Thus, effective migration occurs to an output dominant wavelength of three primary colours of the system with respect to intrinsic wavelengths or dominant wavelengths of the original three primary colours, so that output dominant wavelengths of two groups of three primary colours with intrinsic wavelengths which are not completely the same of two systems trend to be consistent in the whole colour gamut space, or so that an output dominant wavelength of a single system meets the calibration requirements in the whole colour gamut space.