公开(公告)号：US20240172463A1

公开(公告)日：2024-05-23

申请号：US17771500

申请日：2021-05-31

Applicant: Beijing BOE Technology Development Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Wenhai MEI

IPC: H10K50/115 ,  C09K11/02

CPC classification number: H10K50/115 ,  C09K11/02

Abstract: Embodiments of the present disclosure provide a quantum dot material including a quantum dot body and a primary ligand A″ and a secondary ligand B″ coated on a surface of the quantum dot body, and a carbon chain length of the primary ligand A″ is 1.3 to 4.5 times a carbon chain length of the secondary ligand B″.

公开(公告)号：US20240040813A1

公开(公告)日：2024-02-01

申请号：US17639009

申请日：2021-04-20

Applicant: Beijing BOE Technology Development Co., Ltd. ,  BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wenhai MEI

IPC: H10K50/115 ,  H10K71/12 ,  C09K11/06

CPC classification number: H10K50/115 ,  H10K71/12 ,  C09K11/06 ,  H10K50/166

Abstract: The present disclosure provides a light-emitting device, comprising: a first carrier transport layer disposed on a substrate; and a light-emitting layer disposed on a side of the first carrier transport layer away from the substrate; wherein the first carrier transport layer comprises a first transport sublayer comprising nanoparticles and an inorganic ligand connected to the surface of the nanoparticles, wherein the inorganic ligand comprises a halogen group element or an oxygen group element.

公开(公告)号：US20230354630A1

公开(公告)日：2023-11-02

申请号：US17296839

申请日：2020-08-20

Applicant: BOE Technology Group Co., Ltd.

Inventor： Wenhai MEI ,  Yichi ZHANG

IPC: H10K50/115 ,  H10K50/16 ,  H10K50/15 ,  H10K71/80 ,  H10K85/40 ,  H10K85/10 ,  C09K11/06

CPC classification number: H10K50/115 ,  H10K50/16 ,  H10K50/15 ,  H10K71/80 ,  H10K85/40 ,  H10K85/141 ,  C09K11/06 ,  C09K2211/14

Abstract: Embodiments of the present disclosure provide a light emitting diode device, a display panel, a display device, and a manufacturing method. The light emitting diode device includes: a base substrate; a first electrode disposed on one side of the base substrate; a carrier functional layer disposed on one side, facing away from the base substrate, of the first electrode; a quantum dot light emitting layer disposed on one side, facing away from the first electrode, of the carrier functional layer, having a molecular chain structure inside, where the molecular chain structure is formed by atom transfer radical polymerization of a first reactant and a modified molecule, the first reactant undergoes atom transfer radical polymerization with the modified molecule through a ligand molecule A, and in an initial state, the modified molecule is connected to one surface, facing the quantum dot light emitting layer, of the carrier functional layer; and a second electrode disposed on one side, facing away from the carrier functional layer, of the quantum dot light emitting layer.

公开(公告)号：US20190203111A1

公开(公告)日：2019-07-04

申请号：US16100011

申请日：2018-08-09

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wenhai MEI

IPC: C09K11/02 ,  C09K11/88 ,  H01L51/50 ,  H01L33/06

CPC classification number: C09K11/02 ,  B82Y20/00 ,  C09K11/88 ,  H01L33/06 ,  H01L51/502

Abstract: The present disclosure provides a method and a device for exchanging quantum dot ligands. The method includes: loading, into a column tube, granular quantum dots to whose surface a first ligand is attached; passing a replacing liquid through the column tube to replace the first ligand attached to the surface of the quantum dots, so as to obtain quantum dots to whose surface a second ligand is attached; passing an eluent through the column tube to elute the quantum dots to whose surface the second ligand is attached; collecting the eluent passed through the column tube; and detecting whether the eluent passed through the column tube contains the quantum dots to whose surface the second ligand is attached, if no, repeating the above step, and if yes, quantitatively analyzing the content of the second ligand attached to the surface of the quantum dots.

公开(公告)号：US20190112491A1

公开(公告)日：2019-04-18

申请号：US16029171

申请日：2018-07-06

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wenhai MEI

IPC: C09D11/037 ,  C09D11/52 ,  C09D11/033 ,  C09D11/36 ,  C09D11/322 ,  H01L51/00 ,  C07F3/06

CPC classification number: C09D11/037 ,  C07F3/06 ,  C09D11/033 ,  C09D11/322 ,  C09D11/36 ,  C09D11/52 ,  C09K11/0811 ,  H01L51/0092 ,  H01L51/502 ,  H01L51/5072

Abstract: The present disclosure provides a zinc oxide ink and a method for manufacturing the same, an electron transport layer and a display device. The zinc oxide ink includes zinc oxide nanoparticles loaded with ligands, wherein the ligand is derived from aliphatic compounds having a carbon chain of three or more carbon atoms and the ligand has a cross-linkable group at a site close to a coordination atom. The zinc oxide ink increases the steric hindrance among the zinc oxide nanoparticles, thereby preventing the aggregation between the zinc oxide nanoparticles, and accordingly and further avoiding the formation of black points in the formed layer. Meanwhile, the ligands have self-crosslinking property and thus form a web-like structure to prevent the formation of pores in the layer due to the rapid volatilization of the solvent, and the quality of the formed layer by using the zinc oxide ink is ensured.

公开(公告)号：US20240294826A1

公开(公告)日：2024-09-05

申请号：US18641809

申请日：2024-04-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wenhai MEI ,  Zhenqi ZHANG ,  Xiaoyuan ZHANG

IPC: C09K11/02 ,  B82Y20/00 ,  B82Y40/00 ,  C07C211/54 ,  C09K11/88 ,  H10K50/115

CPC classification number: C09K11/025 ,  C07C211/54 ,  C09K11/883 ,  H10K50/115 ,  B82Y20/00 ,  B82Y40/00

Abstract: Embodiments of the present disclosure provide a quantum dot ligand, a quantum dot material, and a quantum dot light emitting device. In a quantum dot ligand of general formula (I), n is 1, 2, 3, or 4; two of X, Y, and Z are G1 group and G2 group, respectively, and the remaining one is selected from the group consisting of G1 group, G2 group, and hydrogen, wherein the G1 group, for each occurrence, is independently selected from —(CH2)m-L-(CH2)n—R1, wherein R1 is a coordination group, m is 0 to 6, n is 0 to 6, and L is a divalent group or absent; the G2 group, for each occurrence, is independently selected from a C4-20 alkyl having a carbon chain with more than 4 carbon atoms.

公开(公告)号：US20240244954A1

公开(公告)日：2024-07-18

申请号：US17918568

申请日：2021-09-25

Applicant: Beijing BOE Technology Development Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Zhuo CHEN ,  Wenhai MEI ,  Zhuo LI

IPC: H10K85/30 ,  B82Y20/00 ,  B82Y40/00 ,  C07F19/00 ,  C09K11/02 ,  C09K11/88 ,  H10K50/115 ,  H10K59/35 ,  H10K71/13

CPC classification number: H10K85/381 ,  C07F19/005 ,  C09K11/025 ,  C09K11/883 ,  H10K71/13 ,  B82Y20/00 ,  B82Y40/00 ,  H10K50/115 ,  H10K59/35

Abstract: The present disclosure provides a quantum dot ligand, a quantum dot-ligand system and a quantum dot material, belonging to the field of display technology. The quantum dot ligand includes an X group, a Y group and a Z group. The Y group is configured to provide at least two binding sites, among which at least one binding site is configured to bind with the X group, and the remaining binding site is configured to bind with the Z group. The X group is a coordination group configured to form a coordination bond with a surface of a quantum dot. The Z group is a saturated 3- to 5-membered heterocyclic group containing O or S.

公开(公告)号：US20230389406A1

公开(公告)日：2023-11-30

申请号：US18031737

申请日：2020-12-15

Applicant: BOE Technology Group Co., Ltd.

Inventor： Wenhai MEI

IPC: H10K85/30 ,  C09K11/06 ,  C09K11/02 ,  H10K50/115

CPC classification number: H10K85/30 ,  C09K11/06 ,  C09K11/025 ,  H10K50/115

Abstract: Provided are a quantum dot film layer, a quantum dot light-emitting device, and a fabrication method. The quantum dot film layer includes: quantum dots; a bonding structure, one end of the bonding structure being connected with the quantum dots; and a fluorine-containing aromatic structure, the fluorine-containing aromatic structure being connected with the other end of the bonding structure to connect with the quantum dots by means of the bonding structure.

公开(公告)号：US20230165025A1

公开(公告)日：2023-05-25

申请号：US17638730

申请日：2021-01-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Wenhai MEI

IPC: H10K50/115 ,  G03F7/004 ,  G03F7/20

CPC classification number: H10K50/115 ,  G03F7/0045 ,  G03F7/2016 ,  H10K2102/351

Abstract: Disclosed are a quantum dot light-emitting device and a manufacturing method thereof, including: a substrate; a first electrode, disposed on the substrate; a carrier film layer, disposed on a side of the first electrode facing away from the substrate; a fixed layer, disposed on a side of the carrier film layer facing away from the substrate, a connecting structure being arranged between the fixed layer and the carrier film layer; a quantum dot layer, disposed on a side of the fixed layer facing away from the substrate; and a second electrode, disposed on a side of the quantum dot layer facing away from the substrate.

公开(公告)号：US20230145503A1

公开(公告)日：2023-05-11

申请号：US17626457

申请日：2021-04-22

Applicant: BOE Technology Group Co., Ltd.

Inventor： Wenhai MEI

IPC: H01L51/50 ,  H01L51/56 ,  H01L51/00

CPC classification number: H01L51/5072 ,  H01L51/0052 ,  H01L51/56 ,  H01L51/0061 ,  H01L51/0067 ,  H01L51/502 ,  H01L51/5084

Abstract: Disclosed are a display substrate, a display device and a manufacturing method for the display substrate. The display substrate comprises a base substrate, a first electrode located at one side of the base substrate, a charge auxiliary layer located at the side of the first electrode away from the base substrate, and a second electrode located at the side of the charge auxiliary layer away from the first electrode; the surface of the charge auxiliary layer away from the first electrode is provided with a plurality of relief structures distributed in an array; an acid generator is mixed in the charge auxiliary layer, and the content of the acid generator in regions of different thicknesses of the charge auxiliary layer is different.