Apparatus and method of employing self-assembled molecules to function as an electron injection layer of OLED
OwnerTa-Ya Chu, Gwo-Sen Lininventors
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Abstract
An apparatus and method of employing self-assembled molecules to function as an electron injection layer of organic light emitting diodes (OLEDs) uses self-assembled molecules to function as an electron injection layer. A dipolar self-assembled molecules film is formed on a cathode metal layer to serve the electron injection layer. The self-assembled molecules have dipolar properties. The doner and the cathode metal layer form a key bond. The resulting dipolar direction formed in the self-assembled molecules can increase electron injection efficiency, thereby increase light emitting efficiency of OLED elements and reduce the threshold voltage of the OLED elements.
Claims3
A method for employing self-assembled molecules to function as an electron injection layer of organic light emitting diodes (OLEDs), comprising steps of:
- a. cleaning a substrate and mapping patterns on the substrate to form a cathode metal layer;
- b. forming a dipolar self-assembled molecule film by dipping or vaporizing to serve as the electron injection layer, the electron injection layer being adhered to the surface of the cathode metal layer;
- c. plating an electron transport layer on the electron injection layer by vaporizing;
- d. plating an emitting layer on the electron transport layer by vaporizing;
- e. plating a hole transport layer on the emitting layer by vaporizing;
- and
- f. sputtering a conductive film on the hole transport layer to serve as an anode layer.
Dependencies are inferred from the claim text.