A polarizer has low color shift and is particularly well suited to use in an LCD display. The polarizer has a double pass color shift of |Deltax| <= 0.005 and |Deltay| <= 0.005 for illumination by a C-illuminant, and a double pass contrast modulation of at least 90%. The display includes two or more layers stacked together, at least one of the layers being an absorbing polarizer having a double pass color shift of |Deltax| <= 0.005 and |Deltay| <= 0.005 for illumination by a C-illuminant. A polarizer with a selected color shift is also used with a rear projection screen having a dispersing layer stacked together with first absorbing polarizer. The polarizer has a single pass color shift with at least one of Deltax and Deltay being negative under illumination by a C-illuminant, and a polarization co-efficiency greater than 90%.
申请公布号
WO02093214(A3)
申请公布日期
2003.05.22
申请号
WO2002US05919
申请日期
2002.02.27
申请人
3M INNOVATIVE PROPERTIES COMPANY
发明人
MOSHREFZADEH, ROBERT, S.;KOTCHICK, KEITH, M.;EBIHARA, IKUKO;GILLIGAN, GREGORY, E.