Patent ID: 11915661
Assignee: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 1:
2. The backlight adjusting method according to claim 1, wherein the determining the first correction backlight value of the backlight subarea, according to the first preset backlight threshold, the quantity, the type of the backlight subarea and the initial backlight values of a plurality of the backlight subareas adjacent to the backlight subarea comprises:
determining the first correction backlight values of the backlight subareas according to the first preset backlight threshold, the quantity and the type of the backlight subareas through the following formula:, L
   
    c
    ⁢
    o
    ⁢
    o
    ⁢
    r
   
  
  =
  
   {
   
    
     
      
       
        L
        
         a
         ⁢
         v
         ⁢
         g
        
       
       ,
       
        
         L
         min
        
        ≥
        
         th
         ⁢
         1
         ⁢
            
         or
         ⁢
            
         
          L
          min
         
        
        ≥
        
         L
         
          a
          ⁢
          v
          ⁢
          g
         
        
       
      
     
    
    
     
      
       
        max
        [
        
         
          L
          min
         
         ,
         
          
           L
           
            a
            ⁢
            v
            ⁢
            g
           
          
          *
          
           (
           
            k
            +
            
             
              (
              
               1
               -
               k
              
              )
             
             *
             
              
               L
               min
              
              
               th
               ⁢
               1
              
             
            
           
           )
          
         
        
        ]
       
       ,
       
        
         L
         min
        
        <
        
         th
         ⁢
         1
         ⁢
            
         and
         ⁢
         
           
            
         
         ⁢
         
          L
          min
         
        
        <
        
         L
         
          a
          ⁢
          v
          ⁢
          g
         
        
       
      
     
    
   
  
 

Lcoor is the first correction backlight value of the backlight subarea,
Lavg is the initial backlight value of the backlight subarea,
Lmin is a minimum initial backlight value among initial backlight values of all backlight subareas adjacent to the backlight subarea,
th1 is the first preset backlight threshold, and
k is a value determined according to the type of the backlight subarea, and k∈(0, 1).