Light emitting device, display panel, and display panel manufacturing method
AssigneeShenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorKunpeng He
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Abstract
A light emitting device, a display panel, and a display panel manufacturing method are provided in the embodiments of the present disclosure. The light emitting device includes a first electrode, and second electrode arranged around the first electrode, and the second electrode is symmetrically disposed with respect to the first electrode. A distance from each of points on the second electrode to a center point of the first electrode is equal. When the light emitting device is transferring, any point on the second electrode abuts the corresponding electrode, thereby reducing the difficulty in a mass transfer process of the light-emitting device.
Claims20
A light emitting device, comprising:
- a first substrate;
- a N-type contact layer disposed on the first substrate;
- an active layer disposed on the N-type contact layer;
- and
- a P-type contact layer disposed on the active layer;
- wherein a first electrode and a second electrode arranged around the first electrode are disposed on the P-type contact layer, in response to the first electrode being an N-type electrode and the second electrode being a P-type electrode, the first electrode is connected to the N-type contact layer through a via hole, or in response to the first electrode being a P-type electrode and the second electrode being an N-type electrode, the second electrode is connected to the N-type contact layer through a via hole;
- and
- wherein a first encapsulation layer is disposed at a side of the second electrode away from the first electrode, and the first encapsulation layer is arranged around the second electrode.
A display panel, comprising:
- a second substrate;
- a thin film transistor (TFT) device disposed on the second substrate, wherein the TFT device comprises a source electrode and a ground terminal;
- and
- a light emitting device disposed on the second substrate, wherein the light emitting device comprises a first electrode, and a second electrode arranged around the first electrode;
- wherein in response to the first electrode being a P-type electrode, the first electrode is arranged in abutment with the source electrode, and the second electrode is arranged in abutment with the ground terminal, or in response to the first electrode being an N-type electrode, the first electrode is arranged in abutment with the ground terminal, and the second electrode is arranged in abutment with the source electrode;
- and
- wherein a first encapsulation layer is disposed at a side of the second electrode away from the first electrode, and the first encapsulation layer is arranged around the second electrode.
A display panel manufacturing method, comprising steps of:
- providing a second substrate;
- forming a thin film transistor (TFT) device on the second substrate;
- providing a light emitting device, wherein the light emitting device comprises a first electrode, and a second electrode arranged around the first electrode,
- wherein the second electrode is symmetrically disposed with respect to the first electrode;
- and
- wherein a first encapsulation layer is disposed at a side of the second electrode away from the first electrode, and the first encapsulation layer is arranged around the second electrode;
- and
- transferring the light emitting device to the second substrate, such that a P-type electrode abuts a source electrode, and an N-type electrode abuts a ground terminal.
Dependencies are inferred from the claim text.