Transparent display panel, display device, and glasses

A transparent display panel having a plurality of sub-pixel regions, the plurality of sub-pixel regions being divided into at least two display unit groups;

• the transparent display panel comprising:
• a first substrate and a second substrate assembled with each other;
• and
• a light exit control layer disposed between the first substrate and the second substrate, the light exit control layer being configured to control a state of exit light of each sub-pixel region;
• wherein
• the first substrate includes:
• a first base;
• and
• a dimming component disposed on a side of the first base, the dimming component including a plurality of dimming lenses, each dimming lens being configured to transmit exit light of one sub-pixel region to human eyes and focus the exit light on a corresponding focal plane, and
• the plurality of dimming lenses being configured to focus exit light of the at least two display unit groups on different focal planes, wherein the focal planes are located at a side of the transparent display panel away from the human eyes;
• wherein
• the dimming lens includes a metasurface lens;
• the metasurface lens includes:
• a transparent base material;
• and a plurality of microstructures disposed on a surface of the transparent base material proximate to the first base, or disposed on a surface of the transparent base material away from the first base;
• the plurality of microstructures are arranged into a plurality of loop-shaped structures, central axes of the plurality of loop-shaped structures substantially coincide, and the plurality of loop-shaped structures are sequentially sleeved in a direction from a center of the transparent base material to an edge of the transparent base material;
• an orthogonal projection of each of the plurality of loop-shaped structures on the transparent base material is substantially in a shape of a rectangle;
• the metasurface lens is a transmission phase metasurface lens;
• the plurality of microstructures in the transmission phase metasurface lens include a plurality of cylinders, and axes of the plurality of cylinders are substantially perpendicular to the transparent base material;
• dimensions of the plurality of cylinders in respective axis directions are approximately equal, and a diameter of each of the plurality of cylinders is proportional to a phase change amount of light passing through the transmission phase metasurface lens;
• and
• each of the plurality of loop-shaped structures includes multiple cylinders, and diameters of the multiple cylinders are equal.

A transparent display panel having a plurality of sub-pixel regions, the plurality of sub-pixel regions being divided into at least two display unit groups;

• the transparent display panel comprising:
• a first substrate and a second substrate assembled with each other;
• and
• a light exit control layer disposed between the first substrate and the second substrate, the light exit control layer being configured to control a state of exit light of each sub-pixel region;
• wherein
• the first substrate includes:
• a first base;
• and
• a dimming component disposed on a side of the first base, the dimming component including a plurality of dimming lenses, each dimming lens being configured to transmit exit light of one sub-pixel region to human eyes and focus the exit light on a corresponding focal plane, and
• the plurality of dimming lenses being configured to focus exit light of the at least two display unit groups on different focal planes, wherein the focal planes are located at a side of the transparent display panel away from the human eyes;
• wherein
• the dimming lens includes a metasurface lens;
• the metasurface lens includes:
• a transparent base material;
• and a plurality of microstructures disposed on a surface of the transparent base material proximate to the first base, or disposed on a surface of the transparent base material away from the first base;
• the plurality of microstructures are arranged into a plurality of loop-shaped structures, central axes of the plurality of loop-shaped structures substantially coincide, and the plurality of loop-shaped structures are sequentially sleeved in a direction from a center of the transparent base material to an edge of the transparent base material;
• an orthogonal projection of each of the plurality of loop-shaped structures on the transparent base material is substantially in a shape of a rectangle;
• the metasurface lens is a geometric phase metasurface lens;
• the plurality of microstructures in the geometric phase metasurface lens include a plurality of rectangular prisms, and axes of the plurality of rectangular prisms are substantially perpendicular to the transparent base material;
• sizes of the plurality of rectangular prisms are approximately equal, and a rotation angle of each of the plurality of rectangular prisms is proportional to a phase change amount of light passing through the geometric phase metasurface lens;
• and
• each of the plurality of loop-shaped structures includes multiple rectangular prisms, and rotation angles of the multiple rectangular prisms are equal.