Patent ID: 11864442
Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 7:
8. A manufacturing method of a display panel, comprising steps as follows:
sequentially providing a substrate, a first electrode, a hole injection layer, a hole transport layer, an electron blocking layer, an organic electroluminescent layer, a hole blocking layer, an electron transport layer, an electron injection layer, and a second electrode;
wherein the organic electroluminescent layer comprises a red sub-pixel region, a green sub-pixel region, and a blue sub-pixel region arranged spaced apart from each other, the organic electroluminescent layer comprises a p-type green light host material and a n-type green light host material, and the electron blocking layer corresponding to the green sub-pixel region of the organic electroluminescent layer is made of the p-type green light host material,
wherein the organic electroluminescent layer and the electron blocking layer corresponding to the green sub-pixel region of the organic electroluminescent layer are produced using a same fine metal mask in a same evaporation chamber; and
wherein in a process of evaporation-depositing the p-type green light host material, a baffle of a p-type green light host material evaporation source is opened, and a baffle of a green light dopant material evaporation source and a baffle of an n-type green light host material evaporation source are closed, so that the p-type green light host material is deposited on the hole transport layer.