Woled devices and preparation methods thereof, woled display apparatuses
AssigneeBoe Technology Group Co., Ltd.
InventorsQingyu HUANG, Fudong CHEN, Huajie YAN, Wenqi LIU, Zhiqiang JIAO
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Abstract
The present application provides a WOLED device and a preparation method thereof, a WOLED display panel. The WOLED device includes: an anode; a cathode, disposed opposite to the anode; a red-fluorescence emitting layer, disposed on a side of the anode close to the cathode; a green-fluorescence emitting layer, disposed on a side of the red-fluorescence emitting layer close to the cathode; an interlayer, disposed on a side of the green-fluorescence emitting layer; and a blue-fluorescence emitting layer, disposed on a side of the interlayer close to the cathode.
Claims19
A WOLED device, comprising:
- an anode;
- a cathode, disposed opposite to the anode;
- a red-fluorescence emitting layer, disposed on a side of the anode close to the cathode;
- a green-fluorescence emitting layer, disposed on a side of the red-fluorescence emitting layer close to the cathode;
- an interlayer, disposed on a side of the green-fluorescence emitting layer close to the cathode, wherein the interlayer comprises a first Host material and a first thermally activated delayed fluorescence (TADF) material;
- and
- a blue-fluorescence emitting layer, disposed on a side of the interlayer close to the cathode.
A preparation method of a WOLED device, comprising:
- forming a red-fluorescence emitting layer on a side of an anode by a first evaporation;
- forming a green-fluorescence emitting layer on a side of the red-fluorescence emitting layer away from the anode by a second evaporation;
- forming an interlayer on a side of the green-fluorescence emitting layer away from the anode by a third evaporation, wherein the interlayer comprises a first Host material and a first TADF material;
- forming a blue-fluorescence emitting layer on a side of the interlayer away from the anode by a fourth evaporation;
- and
- forming a cathode on a side of the blue-fluorescence emitting layer away from the anode by a fifth evaporation.
Dependencies are inferred from the claim text.