Display device with carrier injection control electrode layer and display panel with the same

A manufacturing method of display panel, comprising:

• providing a base substrate;
• forming a driving layer comprising a plurality of pixel circuits on a side of the base substrate, wherein the plurality of pixel circuit comprises a first circuit and a second circuit, the first circuit is configured to input a first power signal and the second circuit is configured to input a second power signal;
• forming a light-emitting layer comprising a plurality of light-emitting units on a side of the driving layer away from the base substrate, wherein the plurality of light-emitting units correspond to the plurality of pixel circuits;
• wherein each of the plurality of light-emitting units comprises a first electrode layer, a first insulating layer, a control electrode layer, a second insulating layer, an active layer and a second electrode layer sequentially distributed along a direction away from the base substrate, as well as an organic light-emitting layer located between the first electrode layer and the active layer;
• wherein the first insulating layer is defined with a notch to expose a partial region of the first electrode layer, an orthographic projection of the control electrode layer on the first insulating layer is located in a region outside the notch, the second insulating layer is configured to separate the control electrode layer from the organic light-emitting layer and the active layer, the organic light-emitting layer is provided on a surface of the first insulating layer away from the base substrate and is located in a region enclosed by the notch, an electronic injection capacity of the active layer is adjustable, the first electrode layer is electrically connected with the first circuit, and the second electrode layer is electrically connected with the second circuit;
• wherein the second circuit comprises a driving transistor with a first electrode configured to input the second power signal and a second electrode electrically connected with the control electrode layer, and in response to that a voltage is applied to the control electrode layer, an electric field is formed between the control electrode layer and the second electrode layer to adjust the electron injection capability of the active layer.

A display device comprising a display panel comprising:

• a base substrate;
• a driving layer, located on a side of the base substrate and provided with a plurality of pixel circuits, wherein the plurality of pixel circuits comprises a first circuit and a second circuit, the first circuit is configured to input a first power signal, the second circuit is configured to input a second power signal;
• a light-emitting layer, provided with a plurality of light-emitting units corresponding to the plurality of pixel circuits, wherein each of the plurality of light-emitting units comprises a first electrode layer, a first insulating layer, a control electrode layer, a second insulating layer, an active layer and a second electrode layer sequentially distributed on a side of the driving layer away from the base substrate, as well as an organic light-emitting layer located between the first electrode layer and the active layer;
• wherein the first insulating layer is defined with a notch to expose a partial region of the first electrode layer, an orthographic projection of the control electrode layer on the first insulating layer is located at a region outside the notch, the second insulating layer is configured to separate the control electrode layer from the organic light-emitting layer and the active layer, the organic light-emitting layer is provided on a surface of the first insulating layer away from the base substrate and is located in a region enclosed by the notch, an electronic injection capacity of the active layer is adjustable, the first electrode layer is electrically connected with the first circuit, and the second electrode layer is electrically connected with the second circuit;
• wherein the second circuit comprises a driving transistor with a first electrode configured to input the second power signal and a second electrode electrically connected with the control electrode layer, and in response to that a voltage is applied to the control electrode layer, an electric field is formed between the control electrode layer and the second electrode layer to adjust the electron injection capability of the active layer.