Patent ID: 11971566
Assignee: SUMITOMO CHEMICAL COMPANY LIMITED
Field: Basic materials chemistry (Chemistry)
Classification: CPC G  H  B  C | IPC C  G  H

Claim 12:
13. The horizontally oriented liquid crystal cured film according to claim 11, satisfying a formula (4):, nxA
           ⁡
           (
           450
           )
          
          +
          
           nyA
           ⁡
           (
           450
           )
          
         
         2
        
        -
        
         nzA
         ⁡
         (
         450
         )
        
       
       
        
         
          
           nxA
           ⁡
           (
           550
           )
          
          +
          
           nyA
           ⁡
           (
           550
           )
          
         
         2
        
        -
        
         nzA
         ⁡
         (
         550
         )
        
       
      
      -
      
       
        
         nxA
         ⁡
         (
         450
         )
        
        -
        
         nyA
         ⁡
         (
         450
         )
        
       
       
        
         nxA
         ⁡
         (
         550
         )
        
        -
        
         nyA
         ⁡
         (
         550
         )
        
       
      
     
     >
     0
    
   
   
    
     (
     4
     )
    
   
  
 

wherein nxA(550) represents a main refractive index at a wavelength λ of 550 nm in a film surface of the horizontally oriented liquid crystal cured film, nyA(550) represents a refractive index at a wavelength λ of 550 nm in a direction orthogonal to a direction of nxA in the same plane as nxA, and nzA(550) represents a refractive index at a wavelength λ of 550 nm in a film thickness direction of the horizontally oriented liquid crystal cured film.