Koninklijke Philips Corporation N.v.

Johannes A M M Van Haaren

Dirk Jan Broer

Rifat Ata Mustafa Hikmet

Peter Van De Witte

A method of manufacturing a compensator layer features forming first and second retardation foils by polymerizing or vitrifying liquid-crystalline material comprising liquid-crystal molecules in manner wherein the liquid-crystal molecules in the polymerized or vitrified liquid-crystalline material of the first and second retardation foils respectively exhibit first and second tilt angles which are respectively parallel to first and second planes that are normal to major surfaces of the foils and that are angled with respect to one another by an angle of 60&#x2013;120 degrees.

Method of manufacturing a compensator layer with retardation foils exhibiting tilt angles parallel to planes normal to the foils and angled with respect to one another

The invention relates to a liquid-crystal display device comprising a display cell and a plurality of retardation foils of polymerized or vitrified liquid-crystal material, whose liquid-crystal molecules have a tilt angle with respect to a plane parallel to the substrates, which retardation foils have substantially complementary indicatrices so that each one of the retardation foils brings about the compensation of approximately half the display cell in the driven state.

Liquid crystal display device, compensator layer and method of manufacturing a retardation foil

A method for manufacturing a broadband cholesteric polarizer includes positioning a layer of reactive material; irradiating the layer of reactive material; directing, at a first side of the layer, a monochromatic beam of light of a given wavelength toward the layer; and detecting, at a second side of said layer, a detected intensity of light of the given wavelength coming from the layer.

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Eindhoven, Netherlands

Johannes A M M Van Haaren