POLARIZER, POLARIZING PLATE, AND IMAGE DISPLAY APPARATUS
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United States of America Patent
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Feb 16, 2017
app pub date -
Apr 23, 2015
filing date -
Apr 25, 2014
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Abstract
There is provided a polarizer that can realize the multi-functionalization and high-functionalization of an electronic device, such as an image display apparatus. A polarizer according to an embodiment of the present invention includes a resin film containing a dichromatic substance, wherein the polarizer has a low dichromatic substance concentration portion whose content of the dichromatic substance is relatively low in the resin film. In the polarizer according to an embodiment of the present invention, the low dichromatic substance concentration portion has a content of an alkali metal and/or an alkaline earth metal of 3.6 wt % or less.
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