Optically functional film

Abstract

Provided is an optically functional film that can contribute to the widening of the color gamut of an image display apparatus, the optically functional film being suppressed in brightness reduction and being excellent in durability. The optically functional film of the present invention includes an optically functional layer having a moisture permeability of 100 g/m2 or less, wherein the optically functional layer has an absorption peak in a wavelength band in a range of from 580 nm to 610 nm, and wherein the optically functional layer contains a compound X represented by the general formula (I) or the general formula (II).

1 . An optically functional film, comprising an optically functional layer having a moisture permeability of 100 g/m 2  or less,
 wherein the optically functional layer has an absorption peak in a wavelength band in a range of from 580 nm to 610 nm, and   wherein the optically functional layer contains a compound X represented by the following general formula (I) or general formula (II):   
       
         
           
           
               
               
           
         
       
       in the formula (I),
 R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , and R 8  each independently represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group having 1 or more and 20 or less carbon atoms, a substituent represented by the formula (a), or a substituent represented by the formula (b), 
 R 1  and R 2  form a saturated cyclic skeleton including 5 or 6 carbon atoms, and R 3 , R 4 , R 5 , R 6 , R 7 , and R 8  each independently represent a hydrogen atom, a halogen atom, which is preferably Cl, a substituted or unsubstituted alkyl group having 1 or more and 20 or less carbon atoms, a substituent represented by the formula (a), or a substituent represented by the formula (b), 
 R 2  and R 3  form a saturated cyclic skeleton including 5 to 7 carbon atoms, and R 1 , R 4 , R 5 , R 6 , R 7 , and R 8  each independently represent a hydrogen atom, a halogen atom, which is preferably Cl, a substituted or unsubstituted alkyl group having 1 or more and 20 or less carbon atoms, a substituent represented by the formula (a), or a substituent represented by the formula (b), 
 R 5  and R 6  form a saturated cyclic skeleton including 5 or 6 carbon atoms, and R 1 , R 2 , R 3 , R 4 , R 7 , and R 8  each independently represent a hydrogen atom, a halogen atom, which is preferably Cl, a substituted or unsubstituted alkyl group having 1 or more and 20 or less carbon atoms, a substituent represented by the formula (a), or a substituent represented by the formula (b), 
 R 6  and R 7  form a saturated cyclic skeleton including 5 to 7 carbon atoms, and R 1 , R 2 , R 3 , R 4 , R 5 , and R 8  each independently represent a hydrogen atom, a halogen atom, which is preferably Cl, a substituted or unsubstituted alkyl group having 1 or more and 20 or less carbon atoms, a substituent represented by the formula (a), or a substituent represented by the formula (b), 
 R 1  and R 2  form a saturated cyclic skeleton including 5 or 6 carbon atoms, R 5  and R 6  form a saturated cyclic skeleton including 5 or 6 carbon atoms, and R 3 , R 4 , R 7 , and R 8  each independently represent a hydrogen atom, a halogen atom, which is preferably Cl, a substituted or unsubstituted alkyl group having 1 or more and 20 or less carbon atoms, a substituent represented by the formula (a), or a substituent represented by the formula (b), or 
 R 2  and R 3  form a saturated cyclic skeleton including 5 to 7 carbon atoms, R 6  and R 7  form a saturated cyclic skeleton including 5 to 7 carbon atoms, and R 1 , R 4 , R 5 , and R 8  each independently represent a hydrogen atom, a halogen atom, which is preferably Cl, a substituted or unsubstituted alkyl group having 1 or more and 20 or less carbon atoms, a substituent represented by the formula (a), or a substituent represented by the formula (b); and 
 in the formula (II), R 4  and R 8  each independently represent a hydrogen atom, or a substituted or unsubstituted alkyl group having 1 or more and 20 or less carbon atoms. 
 
     
     
         2 . The optically functional film according to  claim 1 , further comprising a pressure-sensitive adhesive layer arranged on at least one side of the optically functional layer. 
     
     
         3 . The optically functional film according to  claim 1 , further comprising a substrate arranged on at least one side of the optically functional layer. 
     
     
         4 . An image display apparatus, comprising the optically functional film of  claim 1 .