The invention is to develop a color polarizing plate with a support, the polarizing plate having both good brightness and polarizing efficiency for a blue channel (for blue light). The color polarizing plate with a support for a liquid crystal projector comprises a polarizing plate containing a stilbene type water-soluble azo dye as a dichroic molecule and a support, wherein the polarizing plate has an average single transmittance of 39% or more and an average crossed transmittance of 0.4% or less at 420 to 500 nm and an average crossed transmittance of 4% or more at 650 to 780 nm.
本发明旨在开发一种带支架的彩色偏振片,该偏振片对蓝色通道(蓝光)具有良好的亮度和偏振效率。这种用于液晶投影仪的带支架的彩色偏光板由含有作为二向色分子的
二苯乙烯类
水溶性偶氮
染料的偏光板和支架组成,其中偏光板在 420 至 500 纳米波段的平均单透射率为 39% 或以上,平均交叉透射率为 0.4% 或以下,在 650 至 780 纳米波段的平均交叉透射率为 4% 或以上。