公开(公告)号：US11611053B2

公开(公告)日：2023-03-21

申请号：US17483574

申请日：2021-09-23

Applicant: BOE Technology Group Co., Ltd.

Inventor： Huameng Liu ,  Haidong Wu ,  Bei Wang ,  Xiaobo Du

IPC: G09G3/30 ,  H01L51/50 ,  G09G3/3208 ,  H01L27/32

Abstract: Disclosed are a light-emitting device, a display panel, and a driving method of the light-emitting device. The light-emitting device includes: a base substrate, a first electrode on a side of the base substrate, a second electrode on a side, facing away from the base substrate, of the first electrode, and at least two blue light-emitting layers located between the first electrode and the second electrode. Different blue light-emitting layers emit light with different wavelengths. The first electrode and the second electrode are configured to be applied with different voltages. A voltage difference between the first electrode and the second electrode includes a first threshold voltage and a second threshold voltage, and under control of the first threshold voltage, one of the blue light-emitting layers emits light; and under control of the second threshold voltage, another blue light-emitting layer emits light.

公开(公告)号：US12178060B2

公开(公告)日：2024-12-24

申请号：US17536801

申请日：2021-11-29

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xiaobo Du ,  Haidong Wu ,  Yansong Li ,  Bei Wang

IPC: H10K50/11 ,  H10K50/17 ,  H10K71/00 ,  H10K101/30 ,  H10K101/40 ,  H10K102/00

Abstract: An electroluminescent device, a method for manufacturing the electroluminescent device, a display panel and a display device are provided in the embodiments of the present application. The electroluminescent device includes an anode layer, a first hole injection layer and a hole transport layer. The first hole injection layer is located between the anode layer and the hole transport layer; the first hole injection layer includes at least two secondary hole injection layers, and an equivalent resistance value of the at least two secondary hole injection layers is greater than a first threshold value.

公开(公告)号：US20240298497A1

公开(公告)日：2024-09-05

申请号：US18026004

申请日：2022-06-20

Applicant: BOE Technology Group Co., Ltd.

Inventor： Bei Wang ,  Guanyin Wen ,  Xiaobo Du ,  Huameng Liu ,  Yanjun Hao

IPC: H10K59/38 ,  H10K50/115 ,  H10K50/13

CPC classification number: H10K59/38 ,  H10K50/131 ,  H10K50/115

Abstract: A light emitting device includes: a first electrode; a second electrode disposed opposite to the first electrode; and multiple emission layers stacked between the first electrode and the second electrode. The emission layers include at least one first emission layer and at least one second emission layer. The first emission layer includes a first luminescent material, and is configured to emit a first light when driven by a current or voltage; the second emission layer includes a second luminescent material, and is configured to emit a second light when driven by the current or voltage; a luminous efficiency of the first luminescent material is greater than that of the second luminescent material; and a luminance conversion rate when performing optical excitation on color conversion materials by the first light is smaller than that when performing optical excitation on the color conversion materials by the second light.

公开(公告)号：US11683950B2

公开(公告)日：2023-06-20

申请号：US17332018

申请日：2021-05-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Bei Wang ,  Jia Zhao ,  Xiaobo Du ,  Haidong Wu ,  Huameng Liu

IPC: H01L51/52 ,  H01L27/32 ,  H10K50/842 ,  H10K50/844

CPC classification number: H10K50/8428 ,  H10K50/844

Abstract: A display panel and an electronic device are provided. The display panel includes: an opening area; a display area surrounding the opening area; at least one isolation ring, wherein at least a part of the at least one isolation ring is located between the display area and the opening area, and the at least one isolation ring surrounds the opening area; and a drainage structure extending from a sidewall of an isolation ring in the at least one isolation ring along a straight line passing through a center of the isolation ring.

公开(公告)号：US10276456B2

公开(公告)日：2019-04-30

申请号：US15235945

申请日：2016-08-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Yu Ji ,  Chengye Wu ,  Zhengyun Wu ,  Lei Feng ,  Bei Wang ,  Lei Song

IPC: H01L29/45 ,  H01L21/66 ,  H01L27/12 ,  H01L29/786

Abstract: The present disclosure provides an array substrate, its manufacturing method and testing method, and a display device. The array substrate includes a (Test Element Group) TEG arranged at a non-display area and including a plurality of to-be-tested elements and a plurality of testing contact electrodes configured to test the to-be-tested elements. Each of the to-be-tested elements is connected to at least two of the testing contact electrodes, and at least one of the testing contact electrodes is shared by at least two of the to-be-tested elements.

公开(公告)号：US10270067B2

公开(公告)日：2019-04-23

申请号：US15321550

申请日：2016-03-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Guoping Qian ,  Yangkun Jing ,  Chengye Wu ,  Bei Wang

IPC: H01L51/56 ,  H01L27/32 ,  H05B33/22 ,  H01L51/48 ,  H01L21/77 ,  G06T7/62 ,  G06T7/00 ,  H01L51/00

Abstract: The present disclosure discloses an AMOLED display panel manufacturing method, apparatus and system. The method comprises: collecting size parameters of a substrate, constructing an AMOLED display panel model based on the size parameters, and determining spray data of respective organic vapor materials; controlling corresponding spraying devices to spray the respective organic vapor materials on the substrate successively according to the determined spray data of the respective organic vapor materials, to form an AMOLED display panel.

公开(公告)号：US20220102668A1

公开(公告)日：2022-03-31

申请号：US17332018

申请日：2021-05-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Bei Wang ,  Jia Zhao ,  Xiaobo Du ,  Haidong Wu ,  Huameng Liu

IPC: H01L51/52

Abstract: A display panel and an electronic device are provided. The display panel includes: an opening area; a display area surrounding the opening area; at least one isolation ring, wherein at least a part of the at least one isolation ring is located between the display area and the opening area, and the at least one isolation ring surrounds the opening area; and a drainage structure extending from a sidewall of an isolation ring in the at least one isolation ring along a straight line passing through a center of the isolation ring.