Double-sided organic light-emitting diode, and manufacturing method and display device thereof

A display device having pixel array in which each pixel includes a double-sided organic light-emitting diode and a thin film transistor,

• wherein, the double-sided organic light-emitting diode includes:
• a transparent conducting layer electrically connected to an output end of the thin film transistor;
• a transparent insulating layer arranged on the transparent conducting layer;
• a first electrode arranged on the transparent insulating layer and electrically isolated from the transparent conducting layer;
• a first organic light-emitting semiconductor layer arranged on the first electrode;
• a shared electrode arranged on the first organic light-emitting semiconductor layer and electrically connected to the transparent conducting layer;
• a second organic light-emitting semiconductor layer arranged on the shared electrode;
• and
• a second electrode arranged on the second organic light-emitting semiconductor layer,
• the first electrode, the shared electrode and the second electrode are electrically isolated from each other,
• wherein the first electrode, the first organic light-emitting semiconductor layer and the shared electrode operate as a first organic light-emitting diode;
• and the second electrode, the second organic light-emitting semiconductor layer and the shared electrode operate as a second organic light-emitting diode.

A method for manufacturing a double-sided organic light-emitting diode comprising:

• providing a transparent conducting layer and electrically connecting the transparent conducting layer to an output end of a thin film transistor;
• arranging a transparent insulating layer on the transparent conducting layer;
• providing a first electrode on the transparent insulating layer so that the first electrode is electrically isolated from the transparent conducting layer;
• arranging a first organic light-emitting semiconductor layer on the first electrode;
• arranging a shared electrode on the first organic light-emitting semiconductor layer and making the shared electrode electrically connected to an output end of a thin film transistor and electrically isolated from the first electrode;
• arranging a second organic light-emitting semiconductor layer on the shared electrode;
• and
• arranging a second electrode on the second organic light-emitting semiconductor layer and making the second electrode electrically isolated from the first electrode and the shared electrode,
• wherein the first electrode, the first organic light-emitting semiconductor layer and the shared electrode operate as a first organic light-emitting diode;
• and the second electrode, the second organic light-emitting semiconductor layer and the shared electrode operate as a second organic light-emitting diode, and the shared electrode is an opaque reflection layer and the first electrode and the second electrode are transparent layers.