申请人:Nippon Kayaku Kabushiki Kaisha
公开号:US10209418B2
公开(公告)日:2019-02-19
a* and b* values, which define, the hue of a polarization element or a polarization plate using JIS.Z.8729, are adjusted such that the absolute value of the a* and b* values is: less than 1 during a single-body transmittance measurement; less than 2 when two sheets of a base material are arranged parallel, to the absorbing axis direction and the a* and b* values are measured; and less than 2 when two sheets of the base material are arranged orthogonal to the absorbing axis direction and the a* and b* values are measured.
使用 JIS.Z.8729 确定偏振元件或偏振片色调的 a* 值和 b* 值经过调整,使 a* 值和 b* 值的绝对值:在单体透射率测量中小于 1;当两片基材平行于吸收轴方向布置并测量 a* 值和 b* 值时,小于 2;当两片基材正交于吸收轴方向布置并测量 a* 值和 b* 值时,小于 2。