EZContrastMS comes with a user friendly software which allows fully automated measurement, many type of displays, data export and different analysis. Color and luminance calculation are also available. Using reference ELDIM LEDsource multispectral transmittance of films and display components can be measured easily in realistic using conditions.

 Multispectral measurements of LCDs

Multispectral measurements of Films

Multispectral polarization measurements on LCDs

Multispectral polarization measurement on Films

Multispectral measurements of LCDs

	ON state The values are normalized   Full angular pattern of radiance is obtained for 31 band pass wavelength
	OFF state The values are normalized   Substantial differences can be observed versus wavelength
	Radiance contrast   Substantial differences can be observed versus wavelength
	ON state: radiance along a vertical azimuth
	OFF state: radiance along a vertical azimuth
	Radiance contrast along a vertical azimuth

^ TOP ^

Multispectral measurements of Films

 Diffuser efficiency is isotropic in angle but depends on wavelength

Prismatic DBEF film

  ^ TOP ^

Multispectral polarization measurements on LCDs

LCDs are essential sophisticated polarization modulators. LCD operation and optimization depends on the use of sophisticated polarization compensation. Depending on the liquid crystal structure, the polarization stat e of the light emitted by a LCD can be extremely complex and in particular the OFF state. All the unpolarized light detected in OFF state cannot be modulated by the LC and generally limits the contrast. As shown below , the spectral dependence of the polarization state can be extremely complex . EZContrastMS results allow a close analysis of the working conditions of the liquid crystal cell itself and a precise evaluation of its efficiency versus wavelength.

	Contrast of four LCDs
	Polarization degree in OFF state
Polarization degree of the OFF state of a LCD:  angular pattern at 549nm (center) and along two azimuths (right and left)
Ellipticity of the OFF state of a LCD: angular pattern at 549nm (center) and along two azimuths (right and left)

^ TOP ^

Multispectral polarization measurements on Films

angular pattern at 549nm (center) and along two azimuths (right and left)