Patent · US Active

Manufacturing method of tandem organic light emitting diode device

US11271159B2 · kind B2 · utility

0Cited by
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15Claims
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Inventor

Key dates

Filing dateNov 5, 2019
Grant dateMar 8, 2022
Priority date—
Expiry dateJun 10, 2040

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10K50/171
  • WIPO fieldMicro-structural and nano-technology
  • WIPO sectorChemistry

Abstract

A manufacturing method of a tandem OLED device is provided, including the following steps: providing an anode; using an ink printing technology to form an organic electroluminescence component on the anode; furthermore, the organic electroluminescence component includes a plurality of organic electroluminescence units disposed in stacks, and each of the organic electroluminescence units includes a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer which are disposed sequentially; and forming the cathode on a side of the organic electroluminescence component away from the anode.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.