OLED display panel and preparation method therefor
AssigneeShenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorsJia Tang, Xiaoxing Zhang
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Abstract
An OLED display panel and a preparation method therefor are provided. The OLED display panel includes a substrate, an anode layer, an electron transport layer, and a cathode layer, wherein the anode layer includes an anode and an auxiliary electrode disposed in a same layer, and the auxiliary electrode is disposed in an overlapping area. The auxiliary electrode is provided with a groove, an opening of the groove is disposed toward the cathode layer, and the auxiliary electrode extends through the electron transport layer and is electrically connected with the cathode layer.
Claims17
An OLED display panel, comprising:
- a substrate;
- a second metal layer disposed on the substrate;
- an anode layer disposed on a side of the second metal layer away from the substrate, wherein the anode layer includes an anode and an auxiliary electrode disposed in a same layer, and the auxiliary electrode is disposed in an overlapping area;
- an electron transport layer disposed on a side of the anode layer away from the substrate;
- and
- a cathode layer disposed on a side of the electron transport layer away from the substrate;
- wherein the auxiliary electrode is provided with grooves, an opening of the grooves is disposed toward the cathode layer, and the auxiliary electrode extends through the electron transport layer and is electrically connected to the cathode layer, and
- wherein the auxiliary electrode is disposed in a three-layer stacked structure, a cross section area of each layer of the three-layer stacked structure is decreased gradually in a direction away from the substrate, and the grooves are respectively provided in each layer of the three-layer stacked structure to form a scratching chamfer structure at an upper edge of each of the grooves.
A preparation method for OLED display panel, comprising:
- providing a substrate;
- preparing a second metal layer on the substrate;
- coating at least one layer of conductive material on a side of the second metal layer away from the substrate, patterning the conductive material to prepare an anode layer, and preparing an electron transport layer and a cathode layer sequentially on a side of the anode layer away from the substrate,
- wherein the OLED display panel, comprising:
- the substrate;
- the second metal layer disposed on the substrate;
- the anode layer disposed on a side of the second metal layer away from the substrate, wherein the anode layer includes an anode and an auxiliary electrode disposed in a same layer, and the auxiliary electrode is disposed in an overlapping area;
- the electron transport layer disposed on a side of the anode layer away from the substrate;
- and
- the cathode layer disposed on a side of the electron transport layer away from the substrate;
- wherein the auxiliary electrode is provided with grooves, an opening of the grooves is disposed toward the cathode layer, and the auxiliary electrode extends through the electron transport layer and is electrically connected to the cathode layer, and wherein the auxiliary electrode is disposed in a three-layer stacked structure, a cross section area of each layer of the three-layer stacked structure is decreased gradually in a direction away from the substrate, and the grooves are respectively provided in each layer of the three-layer stacked structure to form a scratching chamfer structure at an upper edge of each of the grooves.
Dependencies are inferred from the claim text.