Manufacturing methods for optical laminates, optical thin films, and display systems

Abstract

This invention provides an optical laminate that achieves both improved visibility and lightweight design for VR goggles. The optical laminate comprises: an absorptive polarizing member including an absorptive polarizing film having a first principal surface and a second principal surface facing each other; a phase retardation member disposed on the first principal surface side of the absorptive polarizing film and including a λ / 4 member; and an adhesive layer disposed between the absorptive polarizing member and the phase retardation member; the absolute value ES of the ellipticity change of the optical laminate is 0.05 or less; and the absolute value ES of the ellipticity change is the slope of an approximately straight line of ellipticity measured with light at a wavelength of 550 nm under tensions of 0 kg, 0.5 kg, 1 kg, 1.5 kg, and 2 kg.

Images