Patent ID: 11921299
Assignee: 3M INNOVATIVE PROPERTIES COMPANY
Field: Optics (Instruments)
Classification: CPC G  B | IPC B  G

Claim 3:
4. The display system of claim 1, wherein the at least one emission spectrum comprises blue, green and red emission spectra having respective blue, green and red FWHMs, and wherein the at least one reflection band comprises blue, green, and red reflection bands having respective blue, green, and red FWHMs, such that for the first light incident at the first predetermined angle from about 30 degrees to about 50 degrees with respect to the normal:
for the first polarization state, the reflective polarizer reflects at least about 60% of the first light for the at least one same first wavelength within each of the FWHMs of the blue, green and red reflection bands and within each of the respective FWHMs of the blue, green and red emission spectra;
for the first polarization state, the reflective polarizer transmits at least about 50% of the first light for the at least one same second wavelength between the FWHMs of the blue and green reflection bands and between the FWHMs of the blue and green emission spectra, and for at least one same third wavelength between the FWHMs of the green and red reflection bands and between the FWHMs of the green and red emission spectra; and
for the second polarization state, the reflective polarizer transmits at least about 60% of the first light for each wavelength in the FWHMs of the blue, green and red reflection bands, each wavelength in the FWHMs of the blue, green and red emission spectra, and each wavelength therebetween.