Polymer and method for preparing the same, electron injection layer, OLED device and display device
AssigneesChengdu Boe Optoelectronics Technology Co., Ltd., Boe Technology Group Co., Ltd.
InventorsXin Mou, Wenbiao Ding
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Abstract
A polymer for an electron injection layer, an electron injection layer, an OLED device, and a display device are disclosed. The polymer includes a unit A and a unit B, in which the unit A is an aromatic group; and the unit B is a group represented by one of six possible formulae disclosed herein. The electron injection layer includes the polymer. The OLED device includes an anode, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, the electron injection layer, and a cathode stacked in sequence.
Claims17
A polymer consisting of a unit A and a unit B and used in an electron transport layer of an organic light-emitting diode device, wherein the unit A is theinylene;
- and the unit B is a group represented by any of formulae (1) to (6):
- the polymer independently comprises 1 to 100 the units A and 1 to 100 the units B, and R1 is H or acyloxy, and R2, R3 and R4 are each independently selected from hydrogen, a linear or branched alkyl having 1 to 24 carbon atoms, or a linear or branched alkoxy having 1 to 24 carbon atoms.
Dependencies are inferred from the claim text.