公开(公告)号：US10886475B2

公开(公告)日：2021-01-05

申请号：US15548880

申请日：2017-01-03

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xue Gao ,  Fei Liu

IPC: H01L51/00 ,  C07D209/82 ,  C07D241/36 ,  C07D251/42 ,  C07F9/53 ,  C07F9/6561 ,  H01L51/50

Abstract: The present disclosure relates to organic electroluminescent materials and organic electroluminescent devices, in particular, discloses a compound of formula (1), wherein R1, R2, R3 and R4 are each independently selected from hydrogen, a substituted or unsubstituted C1-20 alkyl, a substituted or unsubstituted C3-20 cycloalkyl, a substituted or unsubstituted aromatic hydrocarbyl, or a substituted or unsubstituted aromatic heterocyclic group; and at least one of R1, R2, R3 and R4 contains a group having a hole-transporting ability; and at least one of R1, R2, R3 and R4 contains a group having an electron-transporting ability; A and B each independently represent hydrogen, a substituted or unsubstituted, fused aromatic ring, or a substituted or unsubstituted, fused heteroaromatic ring containing a heteroatom(s) selected from O, N and S.

公开(公告)号：US09818802B2

公开(公告)日：2017-11-14

申请号：US14770957

申请日：2015-01-16

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Shinsuke Iguchi ,  Chinlung Liao ,  Xue Gao

IPC: H01L27/32 ,  H01L51/00 ,  H01L21/77 ,  H01L51/50 ,  H01L51/56

CPC classification number: H01L27/3211 ,  H01L21/77 ,  H01L27/3246 ,  H01L27/3283 ,  H01L51/0005 ,  H01L51/5012 ,  H01L51/56 ,  H01L2227/323

Abstract: The present disclosure provides an electroluminescent device, its manufacturing method, a display substrate and a display device. The electroluminescent device includes a substrate, and a pixel defining layer arranged on the substrate. A pixel aperture matrix is formed in the pixel defining layer, at least one connection channel is formed on the pixel defining layer, an electroluminescent layer in a predetermined color is formed in each pixel aperture of the pixel aperture matrix, and the connection channel is configured to connect at least two pixel apertures of the pixel aperture matrix in an identical row or column and corresponding to the electroluminescent layers in an identical color.