Patent ID: 11950501
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC C  H

Claim 28:
29. The organic light emitting device of claim 25, wherein the emission layer comprises a red emission region, a blue emission region and a green emission region;
the hole injection layer comprises a first region under the red emission region, a second region under the green emission region and a third region under the blue emission region; and
a thickness of the first region is in a range of 1,600 to 2,200 Å, a thickness of the second region is in a range of 1,400 to 1,800 Å, and a thickness of the third region is in a range of 1,000 to 1,400 Å.