公开(公告)号：US12238951B2

公开(公告)日：2025-02-25

申请号：US17629389

申请日：2021-04-09

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Qingyu Huang ,  Fudong Chen ,  Zhiqiang Jiao ,  Guangcai Yuan

IPC: H01L51/50 ,  H01L27/32 ,  H10K50/12 ,  H10K50/13 ,  H10K50/155 ,  H10K50/165 ,  H10K59/32

Abstract: An organic electroluminescent device comprises an anode, a first organic light emitting layer, an exciton control layer, a second organic light emitting layer, and a cathode that are successively stacked, wherein the first organic light emitting layer comprises a hole transport type host material and a first doped material; the exciton control layer is provided on the surface of the first organic light emitting layer away from the anode; the exciton control layer comprises a first hole transport material and a first electron transport material; the second organic light emitting layer comprises an electron transport type host material and a second doped material; the cathode is provided on the side of the second organic light emitting layer away from the anode; and one of the first doped material and the second doped material is a fluorescence-doped material, and the other is a phosphorescence-doped material.

公开(公告)号：US20240244900A1

公开(公告)日：2024-07-18

申请号：US18015125

申请日：2022-02-25

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xiaohu Li ,  Weijie Wang ,  Liangliang Kang ,  Zhiqiang Jiao ,  Lu Wang

IPC: H10K59/131 ,  H10K59/12 ,  H10K59/122 ,  H10K59/80

CPC classification number: H10K59/131 ,  H10K59/1201 ,  H10K59/122 ,  H10K59/8792

Abstract: A display panel includes a plurality of driving base plates stacked, each of the driving base plates includes a substrate and a driving unit located on the substrate, orientations of the driving base plates are the same; a plurality of pixel units arranged in an array, each of the pixel units includes a plurality of sub-pixels, and orthographic projections on the substrate of light emitting regions of the sub-pixels in the same pixel unit do not overlap with each other; and each of the driving base plates is provided with at least one sub-pixel on one side away from the substrate, and the driving unit on each of the driving base plates is electrically connected to the at least one sub-pixel; and a quantity of the driving base plates is less than or equal to a quantity of the sub-pixels in one of the pixel units.

公开(公告)号：US20220246691A1

公开(公告)日：2022-08-04

申请号：US17721218

申请日：2022-04-14

Applicant: BOE Technology Group Co., Ltd.

Inventor： Qingyu Huang ,  Huajie Yan ,  Liangliang Kang ,  Fudong Chen ,  Zhiqiang Jiao

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/56

Abstract: A light emitting element, includes a first light emitting layer and a second light emitting layer sequentially stacked; and an intermediate layer between the first light emitting layer and the second light emitting layer, and being in direct contact with the first light emitting layer on one side and in direct contact with the second light emitting layer on another side. Each of the intermediate layer, the first light emitting layer, and the second light emitting layer includes a same host material. The intermediate layer is a non-light emitting layer, and is an undoped layer absent of a dopant for emitting light. The light emitting element is configured to emit a composite light including the first light of the first wavelength range and the second light of the second wavelength range. The first wavelength range includes wavelength longer than the second wavelength range.

公开(公告)号：US11257425B2

公开(公告)日：2022-02-22

申请号：US16641072

申请日：2019-08-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Huajie Yan ,  Qingyu Huang ,  Xiaohu Li ,  Tun Liu ,  Liangliang Kang ,  Juan Zhang ,  Zhiqiang Jiao

IPC: G09G3/3225 ,  G09G3/3291 ,  H01L21/768 ,  H01L27/146 ,  H01L27/32 ,  H01L51/52 ,  H01L51/56 ,  G09G3/3266

Abstract: The present disclosure provides a display panel and a method for manufacturing the same, a pixel light emitting compensation method, and a display apparatus. The display panel comprises a plurality of pixel units arranged in an array, wherein each of the pixel units comprises: an array substrate comprising a pixel driving circuit; a pixel defining layer disposed on a first surface of the array substrate and having a via hole wherein the first surface is far away from a substrate of the array substrate; a light emitting unit disposed in the via hole, wherein the light emitting unit is electrically connected to an output terminal of the pixel driving circuit, so that driving current output by the pixel driving circuit drives the light emitting unit to emit light; and a photoelectric converter configured to receive the light emitted by the light emitting unit.

公开(公告)号：US20210359284A1

公开(公告)日：2021-11-18

申请号：US16768924

申请日：2019-12-04

Applicant: BOE Technology Group Co. Ltd.

Inventor： Xiaohu Li ,  Zhiqiang Jiao ,  Tun Liu ,  Huajie Yan

IPC: H01L51/56 ,  H01L27/32

Abstract: Disclosed is a method for manufacturing a display panel including: forming a base structure in a target region on a base substrate; forming a display structure layer on the base substrate on which the base structure is formed; forming an annular groove in the display structure layer in a region which an orthographic projection of the base structure on the display structure layer falls within, the base structure being exposed in the annular groove; and removing the base structure surrounded by the annular groove to separate the display structure layer surrounded by the annular groove from the base substrate.

公开(公告)号：US11075360B2

公开(公告)日：2021-07-27

申请号：US16607346

申请日：2019-05-07

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Qingyu Huang ,  Zhiqiang Jiao ,  Zhongyuan Sun ,  Xiang Zhou

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/56

Abstract: An OLED display panel, a display device and a method for manufacturing the OLED display panel are provided. The display panel includes a display panel body, and an encapsulation layer disposed on the display panel body and applied to encapsulate the display panel body. The encapsulation layer has a gradually increasing thickness in a direction from a central position of the display panel to an edge position of the display panel.

公开(公告)号：US11069268B2

公开(公告)日：2021-07-20

申请号：US16639108

申请日：2019-03-08

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yanan Niu ,  Lei Chen ,  Zhongyuan Sun ,  Hongwei Tian ,  Wei Huang ,  Zhiqiang Jiao ,  Kuanjun Peng ,  Yichi Zhang

IPC: G09G3/00 ,  H01L51/00 ,  H01L51/52 ,  H01L27/32

Abstract: A flexible display panel includes a plurality of light-emitting regions separated from each other, a respective one of the plurality of light-emitting regions including a light emitting element and an encapsulating structure encapsulating the light emitting element; and a plurality of dummy regions connecting the plurality of light-emitting regions, a respective one of the plurality of light-emitting regions having a larger thickness than a respective dummy region and including a plurality of driving wires. The flexible display panel further includes a detecting wire in the plurality of dummy regions and the plurality of light emitting regions.

公开(公告)号：US10886492B2

公开(公告)日：2021-01-05

申请号：US16400619

申请日：2019-05-01

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaohu Li ,  Zhiqiang Jiao ,  Tun Liu ,  Huajie Yan ,  Hongsheng Zhan ,  Liangliang Kang

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/56 ,  H01L51/52

Abstract: An array substrate and a manufacturing method thereof, and a display panel are disclosed. The array substrate includes a base substrate, comprising a plurality of sub-pixel regions and inter-sub-pixel regions between adjacent sub-pixel regions; and a first organic functional layer on the base substrate. At least a portion of the first organic functional layer is in the plurality of sub-pixel regions; and the first organic functional layer includes at least one fracture opening, the at least one fracture opening is configured to block a transportation of the carriers between adjacent sub-pixel regions.

公开(公告)号：US10103358B2

公开(公告)日：2018-10-16

申请号：US15121843

申请日：2015-07-15

Applicant: BOE Technology Group Co., Ltd.

Inventor： Zhiqiang Jiao ,  Huai-Ting Shih

IPC: H01L51/52 ,  H01L51/56

Abstract: This disclosure provides an OLED substrate and a producing method thereof, a panel, and a display apparatus, and pertains to the field of OLED products and production. The OLED substrate comprises an OLED device and an encapsulating layer, which are located on a first substrate, wherein the encapsulating layer encapsulates the OLED device, and wherein the OLED substrate further comprises a heat-dissipating layer which is provided above the OLED device. By adding a heat-dissipating layer and by means of the good thermal conductivity of the heat-dissipating layer, the heat generated when OLED devices are lit is rapidly dissipated, so as to prolong the service life of OLED devices, such that the service life of OLED panel and in turn the service life of display apparatus are prolonged.

公开(公告)号：US09691828B2

公开(公告)日：2017-06-27

申请号：US14436069

申请日：2014-07-14

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhiqiang Jiao ,  Shibo Jiao ,  Chengyuan Luo

IPC: H01L29/08 ,  H01L27/32 ,  H01L51/52 ,  H01L51/56

CPC classification number: H01L27/322 ,  H01L27/3218 ,  H01L51/5268 ,  H01L51/56

Abstract: The invention provides a display apparatus and a method for manufacturing the same, relates to the field of display technology, and solves the problem of low display luminance due to the existing display apparatus being affected by other film layers. A display apparatus comprises a light emitting unit and further comprises several layers of thin film located in the light emission path of the light emitting unit, and at least one of the several layers of thin film has nanoparticles.