Polarizing elements and polarizers
一种偏振元件、聚乙烯醇树脂的技术,应用在偏振元件、光学元件、光学元件等方向,能够解决染料系偏振片透过率低、对比度低等问题,达到光学特性提高、耐久性提高的效果
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example 1
[0065] 【Chemical 5】
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[0080] 【chemical 10】
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[0083] 【chemical 11】
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example 11
[0095] 【chemical 15】
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[0101] 【Chemical 17】
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[0103] [Compound Example 14]
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[0115] [Compound Example 18]
[0116] 【Chemical 22】
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[0118] The azo compound used as a dye in the present invention can usually be produced by the following steps using a well-known synthesis method in the technical field. First, make the following formula
[0119] 【Chemical 23】
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[0121] The compound (in the formula, A represents the same meaning as the situation of the above-mentioned formula (I)) with the stilbene structure represented) and
[0122] 【Chemical 24】
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[0124] Represented compounds (where R...
Embodiment
[0150] Hereinafter, the present invention will be described in more detail by way of examples, but the present invention is not limited by these examples. In addition, the evaluation of the transmittance shown in an Example was performed as follows.
[0151] The respective transmittances were measured using a spectrophotometer ["U-4100" manufactured by Hitachi, Ltd.].
[0152] When the transmittance is measured using a spectrophotometer [manufactured by Hitachi, Ltd. "U-4100"], the transmittance after correction of the sensitivity based on JIS-Z8701 (C light source 2° field of view) is set on the light emitting side to 43 % and an iodine-based polarizer (SKN-18043P manufactured by Polatechno Co., Ltd.) with a polarization degree of 99.99%, so that absolutely polarized light can enter the measurement sample. The protective layer of the iodine-based polarizing plate at this time is triacetyl cellulose which does not have ultraviolet absorbing ability.
[0153] Absolutely polar...
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