Patent ID: 11953792
Assignee: HKC CORPORATION LIMITED
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 15:
16. The display device of claim 15, wherein:
the U-shaped channel region has a semi-circular region and an extension region which is located at two ends of the semi-circular region and is rectangular, an inner radius of the semi-circular region is expressed as a, an outer radius of the semi-circular region is expressed as b, and a channel width of the extension region is expressed as c;
a channel length of the semi-circular region is equal to a channel length of the extension region and is defined as a channel length L of the U-shaped channel region, and the channel length L of the U-shaped channel region is the difference between an outer radius b of the semi-circular region and an inner radius a of the semi-circular region; and
the channel length L of the U-shaped channel region and the channel width W of the U-shaped channel region satisfy the following relationship:, W
   L
  
  =
  
   
    π
    
     ln
     ⁢
     
      
       
        2
        ⁢
        c
       
       +
       
        π
        ⁢
        b
       
      
      
       
        2
        ⁢
        c
       
       +
       
        π
        ⁢
        a
       
      
     
    
   
   .