Display screen, display device and display method

A display device, comprising a display screen, wherein the display screen comprises a display panel and a dye liquid crystal cell;

• the dye liquid crystal cell is arranged on only one side of the display panel, the display panel is not a dye liquid crystal cell, and the dye liquid crystal cell is configured to control an emergent direction of light that has been transmitted through the dye liquid crystal cell under the influence of an electric field, to enable a viewing angle of the display screen to be varied continuously by the dye liquid crystal cell in a case that the electric field is generated continuously;
• the dye liquid crystal cell is arranged on a light entering side of the display panel, and the dye liquid crystal cell comprises a first transparent substrate, a second transparent substrate and a dye liquid crystal layer;
• the first transparent substrate and the second transparent substrate are arranged opposite to each other, and the dye liquid crystal layer is arranged between the first transparent substrate and the second transparent substrate;
• a first conductive layer is arranged on the first transparent substrate and in direct contact with the first transparent substrate;
• a first alignment layer is arranged on the first transparent substrate on which the first conductive layer has been arranged, and is in direct contact with the first conductive layer;
• a second conductive layer is arranged on the second transparent substrate and in direct contact with the second transparent substrate;
• and
• a second alignment layer is arranged on the second transparent substrate on which the second conductive layer has been arranged, and is in direct contact with the second conductive layer;
• and
• both the first alignment layer and the second alignment layer are in direct contact with the dye liquid crystal layer,
• wherein the display panel comprises a first substrate and a second substrate arranged in a light entering direction, the first substrate and the second substrate are spaced apart from each other, and the first transparent substrate is the first substrate.

A display method for a display screen, wherein the display screen comprises:

• a display panel and a dye liquid crystal cell, the dye liquid crystal cell is arranged on only one side of the display panel, the display panel is not a dye liquid crystal cell, and the dye liquid crystal cell is configured to control an emergent direction of light that has been transmitted through the dye liquid crystal cell under the influence of an electric field, to enable a viewing angle of the display screen to be varied continuously by the dye liquid crystal cell in a case that the electric field is generated continuously;
• the dye liquid crystal cell is arranged on a light entering side of the display panel, the dye liquid crystal cell comprises a first transparent substrate, a second transparent substrate and a dye liquid crystal layer, the first transparent substrate and the second transparent substrate are arranged opposite to each other, the dye liquid crystal layer is arranged between the first transparent substrate and the second transparent substrate, a first conductive layer is arranged on the first transparent substrate and in direct contact with the first transparent substrate, a first alignment layer is arranged on the first transparent substrate on which the first conductive layer has been arranged and is in direct contact with the first conductive layer, a second conductive layer is arranged on the second transparent substrate and in direct contact with the second transparent substrate, a second alignment layer is arranged on the second transparent substrate on which the second conductive layer has been arranged and is in direct contact with the second conductive layer, and both the first alignment layer and the second alignment layer are in direct contact with the dye liquid crystal layer,
• wherein the display panel comprises a first substrate and a second substrate arranged in a light entering direction, the first substrate and the second substrate are spaced apart from each other, and the first transparent substrate is the first substrate;
• the display method comprises:
• emitting light to the dye liquid crystal cell in the case that an image is needed to be displayed;
• and
• applying voltages to the dye liquid crystal cell to generate an electric field in the dye liquid crystal cell, wherein the dye liquid crystal cell is capable of controlling an emergent direction of light that has been transmitted through the dye liquid crystal cell under the influence of the electric field and absorbing preset light, and an angle between the preset light and the display screen is a preset angle.