Patent ID: 11910704
Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 5:
6. An organic light emitting diode device, comprising an emitting material layer, wherein the emitting material layer comprises:
a first common blue-light light-emitting layer;
a red-green-blue light emitting layer disposed on the first common blue-light light-emitting layer, wherein the red-green-blue light emitting layer comprises a red light emitting layer, a green light emitting layer, and a blue light emitting layer disposed side by side on a same layer; and
a second common blue-light light-emitting layer disposed on the red-green-blue light emitting layer;
wherein a host material of the second common blue-light light-emitting layer is a preferred electron type material, and its chemical formula is one selected from the group consisting of:,