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

Claim 3:
4. The organic light emitting diode device as claimed in claim 1, wherein a host material of the second common blue-light light-emitting layer is a preferred electron type material, and its chemical formula is:, wherein R is hydrogen or is a substituent with one to twenty carbon atoms selected from the group consisting of a phenyl group derivative, a naphthalene group derivative, and an aryl group derivative, X is one selected from the group consisting of a naphthalene group derivative, a phenyl group derivative, a phenylnaphthalene derivative, and a phenylanthracene derivative monomer, and the host material of the second common blue-light light-emitting layer comprises at least one compound selected from the group consisting of anthracene dinaphthalene, anthracene dibiphenyl, anthracene naphthalene biphenyl, and anthracene diphenyl.