Patent ID: 11909949
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A display panel, comprising a display substrate, a cylindrical lens array comprising cylindrical lenses on a light emitting side of the display substrate,
wherein the display substrate comprises a back plate, a pixel definition layer and a sub-pixel unit array comprising sub-pixel units on the back plate, wherein each of the sub-pixel units is in a pixel region defined by the pixel definition layer and comprises at least two secondary sub-pixels;
the cylindrical lenses are arranged corresponding to the sub-pixel units, each cylindrical lens has a cylindrical surface away from the back plate, and a focus point in a surface of a corresponding sub-pixel unit away from the back plate,
the secondary sub-pixels are arranged in a first direction; an axis of the cylindrical lens is perpendicular to the first direction; an extending direction of the axis is a second direction;
the display substrate has a shape of rectangle, a long side of the display substrate extends along the first direction, and a wide side of the display substrate extends along the second direction;
the sub-pixel unit has a shape of rectangle, a long side of the sub-pixel unit extends in the first direction, and a wide side of the sub-pixel unit extends in the second direction; and
the secondary sub-pixel has a shape of rectangle, a wide side of the secondary sub-pixel extends in the first direction, and a long side of the secondary sub-pixel extends in the second direction,
the sub-pixel units in the sub-pixel unit array have the same size and shape; and
the secondary sub-pixels in each sub-pixel unit have the same size and shape, and
a main lobe visual angle of the cylindrical lens and a focal length of the cylindrical lens satisfy:, tan
    ⁢
    
     ω
     2
    
   
   =
   
    
     Np
     y
    
    
     2
     ⁢
     f
    
   
  
  ;
  
   
    α
    
     ω
     /
     N
    
   
   =
   i
  
 

where ω is the main lobe visual angle of the cylindrical lens; N is a number of the secondary sub-pixels in the sub-pixel unit; py is a distance between centers of two adjacent secondary sub-pixels in the sub-pixel unit f is the focal length of the cylindrical lens; i=1, 2, 3 . . . , i being an integer; and α is an included angle of a pupil distance of human eyes with respect to the display substrate.