Shanghai Tianma Am-oled Co., Ltd.

Huihui Ma

Xiangcheng Wang

Yuji Hamada

Jinghua Niu

Jie Li

Wei He

Chen Liu

Hongyang Ren

An OLED display panel is provided. The OLED display panel comprises a first electrode; an opposite second electrode; and a plurality of stacking layers sandwiched between the first electrode and the second electrode. The plurality of stacking layers at least comprises a first auxiliary light-emitting layer and a light-emitting layer sequentially disposed on the first electrode. The first auxiliary light-emitting layer comprises a host material and a dopant material, and the dopant material comprises a compound of the following chemical formula (I): where n is an integer equal to or larger than 1, X, Xand Xeach independently has a chemical structure of R' is selected from any one of a substituted aryl group and a substituted heteroaryl group, and a substituent in the substituted aryl group and a substituent in the substituted heteroaryl group each includes at least one electron acceptor group.

Organic light-emitting diode (OLED) display panel, fabrication method and electronic device thereof

An organic light-emitting diode (OLED) display panel, a fabrication method thereof, and an electronic apparatus including the OLED display panel are provided. The OLED display panel comprises: a substrate, an organic light-emitting device, and a capping layer. A material of the capping layer includes a compound of a chemical formula (I), L1, L2, L3, and L4 are independently selected from a hydrogen atom, a substituted or -unsubstituted alkyl, a substituted or unsubstituted alkenyl, a substituted or unsubstituted alkynyl, and a substituted or unsubstituted phenyl. A total quantity of benzene rings included in L1, L2, L3, and L4 is from 0 to 6. Y1, Y2, Y3, Y4, Y5, and Y6 are independently selected from a hydrogen atom, a substituted or unsubstituted alkyl, a substituted of unsubstituted alkenyl, and a substituted or unsubstituted alkynyl.

Organic light-emitting diode display panel, fabrication method, and electronic apparatus

The application discloses an organic light-emitting diode for a display panel. The organic light-emitting diode includes an anode, a cathode, at least two emitting layers arranged between the anode and the cathode, and a charge generation layer arranged between every two adjacent emitting layers, wherein the charge generation layer includes a first layer unit and a second layer unit which are arranged in sequence, the first layer unit includes a hole injection material and a P-type semiconductor material doped in the hole injection material, and the second layer unit includes an electron transport material and ytterbium doped in the electron transport material, wherein a volume concentration of ytterbium doped in the electron transport material ranges from 1% to 5%.

Organic light-emitting diode, display panel and display device

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Shanghai, China

Huihui Ma