公开(公告)号：US20240306495A1

公开(公告)日：2024-09-12

申请号：US18025982

申请日：2022-05-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Siqi Wang ,  Haiyan Sun ,  Lixia Qiu ,  Xiaojin Zhang ,  Dan Wang

IPC: H10K85/60 ,  H10K50/18 ,  H10K101/40

CPC classification number: H10K85/6572 ,  H10K85/615 ,  H10K85/636 ,  H10K85/654 ,  H10K85/657 ,  H10K85/6574 ,  H10K50/181 ,  H10K2101/40

Abstract: The present application provides a light emitting device and a displaying device, which relates to the technical field of displaying. The light emitting device includes a first electrode and a second electrode; a luminescent layer, located between the first electrode and the second electrode, including a host material and a thermally activated delayed-fluorescence material; and an electron blocking layer, located between the luminescent layer and the first electrode; and 0.1 eV

公开(公告)号：US20250127008A1

公开(公告)日：2025-04-17

申请号：US18294613

申请日：2023-05-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaojin Zhang ,  Haiyan Sun

IPC: H10K59/50 ,  G02F1/1335 ,  H10K59/122 ,  H10K59/126 ,  H10K59/80

Abstract: A display panel includes a backplane and a plurality of light-emitting devices located on the backplane. A light-emitting device includes a first electrode and a second electrode arranged oppositely, the first electrode being closer to the backplane than the second electrode; a light extraction layer located on a light exit side of the plurality of light-emitting devices, the light extraction layer being configured to allow circularly polarized light of a first rotation direction to pass through and reflect circularly polarized light of a second rotation, the first rotation direction being different from the second rotation direction; and an anti-reflection layer located on the light extraction layer, the anti-reflection layer being configured to allow the circularly polarized light of the first rotation direction to pass through.

公开(公告)号：US11042066B2

公开(公告)日：2021-06-22

申请号：US16168916

申请日：2018-10-24

Applicant: BOE Technology Group Co., Ltd.

Inventor： Hao Miao ,  Pengju Zhang ,  Mingxing Liu ,  Haiyan Sun ,  Hong Zhu

IPC: G02F1/1343 ,  G02F1/1335 ,  G02F1/13357 ,  H01L27/12 ,  G02F1/1333

Abstract: A display panel and a display device are provided. The display panel includes: a first substrate, a second substrate cell-aligned with the first substrate, a first electrode, a second electrode, the first electrode and the second electrode being used to provide an electric field, and a dimming layer between the first substrate and the second substrate, the dimming layer comprising a two-dimensional material deflected between a direction perpendicular to the first substrate and a direction parallel to the first substrate under the action of the electric field.

公开(公告)号：US20190265556A1

公开(公告)日：2019-08-29

申请号：US16168916

申请日：2018-10-24

Applicant: BOE Technology Group Co., Ltd.

Inventor： Hao Miao ,  Pengju Zhang ,  Mingxing Liu ,  Haiyan Sun ,  Hong Zhu

IPC: G02F1/1343 ,  G02F1/1335 ,  H01L27/12

Abstract: A display panel and a display device are provided. The display panel includes: a first substrate, a second substrate cell-aligned with the first substrate, a first electrode, a second electrode, the first electrode and the second electrode being used to provide an electric field, and a dimming layer between the first substrate and the second substrate, the dimming layer comprising a two-dimensional material deflected between a direction perpendicular to the first substrate and a direction parallel to the first substrate under the action of the electric field.

公开(公告)号：US12167617B2

公开(公告)日：2024-12-10

申请号：US17419307

申请日：2020-09-28

Applicant: BOE Technology Group Co., Ltd.

Inventor： Meishan Xu ,  Haiyan Sun ,  Dan Wang ,  Changho Lee

IPC: H01L51/50 ,  C09K11/06 ,  H10K50/11 ,  H10K50/15 ,  H10K50/17 ,  H10K85/60 ,  C09K11/07 ,  H10K101/30 ,  H10K101/40 ,  H10K102/00

Abstract: An organic light emitting device and a display apparatus are provided. The organic light emitting device includes an anode, a cathode and a light-emitting layer arranged between the anode and the cathode, wherein a first hole injection layer and a second hole injection layer are arranged between the anode and the light-emitting layer. The first hole injection layer and the second hole injection layer are different in structure, including one or more of the following: the first hole injection layer and the second hole injection layer are different in thickness, different in material structure, different in quantity of the material and number of types of the material, and different in energy level of the material.

公开(公告)号：US20240407219A1

公开(公告)日：2024-12-05

申请号：US18697209

申请日：2022-09-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaojin Zhang ,  Haiyan Sun

IPC: H10K59/35 ,  H10K50/12 ,  H10K50/852 ,  H10K59/32 ,  H10K59/38 ,  H10K101/20

Abstract: A display substrate includes a backplate, an anode layer, a first auxiliary layer, a second auxiliary layer, a third auxiliary layer, first light-emitting layers of at least two different colors between the first and second auxiliary layers, second light-emitting layers of at least two different colors between the second and third auxlliary layers, and a cathode layer. The first light-emitting layers at least include first blue light-emitting layers. The second light-emitting layers at least include second blue light-emitting layers. The first auxiliary layer includes film layers; and a portion, opposite to a first blue light-emitting layer, of the film layers has an optical thickness of L1. The third auxiliary layer includes film layers stack; and a portion, opposite to the first blue light-emitting layer, of the film layers has an optical thickness of L2, where L1 and L2 satisfy the following formula: ❘ "\[LeftBracketingBar]" L 1 - L 2 ❘ "\[RightBracketingBar]" ≤ 20 ⁢ n _ + ( k - 1 ) ⁢ λ B 2 k - 1

公开(公告)号：US20220336765A1

公开(公告)日：2022-10-20

申请号：US17312030

申请日：2020-08-07

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Haiyan Sun ,  Xiaojin Zhang ,  Dan Wang ,  Changho Lee

IPC: H01L51/50 ,  H01L51/00

Abstract: Provided is a display substrate including a base substrate, an anode layer, a light-emitting layer, an electron diffusion layer, a hole block layer and a cathode layer which are sequentially stacked along a direction away from the base substrate, wherein a material of the electron diffusion layer comprises a first luminescent material, and a transport speed of holes generated by the anode layer in the electron diffusion layer is less than a transport speed of the holes in the light-emitting layer.

公开(公告)号：US11264684B2

公开(公告)日：2022-03-01

申请号：US16609819

申请日：2019-04-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pengju Zhang ,  Mingxing Liu ,  Haiyan Sun ,  Rui Li ,  Hao Miao ,  Hong Zhu

IPC: H01P1/18 ,  G02F1/13 ,  G02F1/31 ,  H01P3/08 ,  H01Q3/36 ,  H01P9/00

Abstract: A liquid crystal phase shifter is disclosed. The liquid crystal phase shifter includes a liquid crystal cell, a partition plate, a first microstrip line, a second microstrip line and liquid crystal molecules. The liquid crystal cell includes a first substrate and a second substrate disposed opposite to each other; the partition plate is disposed between the first substrate and the second substrate; the first microstrip line is disposed on a surface of the partition plate away from the second substrate; the second microstrip line is disposed on a surface of the partition plate away from the first substrate; and the liquid crystal molecules are provided between the first substrate and the partition plate, and between the second substrate and the partition plate.

公开(公告)号：US11079622B2

公开(公告)日：2021-08-03

申请号：US16580446

申请日：2019-09-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Haiyan Sun ,  Hao Miao ,  Rui Li ,  Pengju Zhang ,  Hong Zhu ,  Mingxing Liu

IPC: G02F1/01 ,  G02F1/1335 ,  H01L27/32 ,  H01L51/52

Abstract: A display panel includes: a transparent display substrate; an opposite substrate disposed opposite to the transparent display substrate; and a light adjusting layer disposed between the transparent display substrate and the opposite substrate. The light adjusting layer is configured in a way that, under action of an electric field, at least a part of the light adjusting layer transmits light or at least a part of the light adjusting layer reflects light.

公开(公告)号：US10976604B2

公开(公告)日：2021-04-13

申请号：US16641148

申请日：2019-04-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pengju Zhang ,  Mingxing Liu ,  Hao Miao ,  Haiyan Sun ,  Rui Li ,  Hong Zhu

IPC: G02F1/13357 ,  G02F1/1335 ,  G02F1/1337

Abstract: A display panel, a driving method thereof, and a display device are described. The display panel includes a first substrate and a second substrate opposite to each other, and a light transmission control layer located between the first substrate and the second substrate. The light transmission control layer includes a first electrode on a side of the first substrate facing the second substrate, a second electrode on a side of the second substrate facing the first substrate, a dispersant between the first electrode and the second electrode, and opaque flake dispersions dispersed in the dispersant. The first electrode and the second electrode are configured to form an electric field to control an arrangement state of the flake dispersions in the dispersant.