Patent ID: 11899880
Assignee: JAPAN DISPLAY INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 6:
7. The liquid crystal display device according to claim 4, wherein
the detection circuit calculates a value CcorS resulting from correcting the detected capacitance value using Expression (1) and Expression (2), C
      ⁢
      c
      ⁢
      o
      ⁢
      
       r
       S
      
     
     =
     
      
       C
       ⁢
       r
       ⁢
       a
       ⁢
       
        w
        S
       
      
      -
      
       
        ∑
        
         r
         =
         1
        
        R
       
       
        Δ
        ⁢
        C
        ⁢
        
         
          g
          S
         
         (
         r
         )
        
       
      
     
    
   
   
    
     (
     1
     )
    
   
  
 

 
  
   
    
     
      
       △
       ⁢
       
        
         Cg
         S
        
        (
        r
        )
       
      
      =
      
       
        C
        ⁢
        
         
          g
          
           S
           ⁢
           r
           ⁢
           e
          
         
         (
         r
         )
        
       
       -
       Cgref
      
     
    
    
     
      (
      2
      )
     
    
   
  
 

where CrawS is the detected capacitance value, R is number of the pixels, CgSre(r) is the liquid crystal capacitance value at the detection timing, Cgref is the reference capacitance value, and CcorS is the value resulting from correcting the detected capacitance value.