公开(公告)号：US20240381731A1

公开(公告)日：2024-11-14

申请号：US18270885

申请日：2022-08-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Qian Jin ,  Yang Li ,  Wei Huang ,  Liangliang Kang

IPC: H10K59/38 ,  H10K59/122

Abstract: Disclosed are a display panel and a display apparatus. The display panel includes: a light-emitting base substrate comprising a plurality of light-emitting elements and configured to emit a first light; a color conversion substrate comprising a plurality of color conversion patterns, the color conversion pattern comprising a matrix material and quantum dots dispersed in the matrix material, wherein the matrix material is configured to excite a second light under irradiation of the first light, and the quantum dots are configured to emit light under irradiation of the first light and the second light. By exciting the quantum dots with the light emitted by the light-emitting elements and the light emitted by the matrix material, the luminous efficiency of the quantum dots can be improved and the power consumption can be reduced.

公开(公告)号：US11348976B2

公开(公告)日：2022-05-31

申请号：US16769563

申请日：2019-08-07

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 display panel having a plurality of subpixels is provided. The display panel includes a base substrate; a plurality of light emitting elements on the base substrate; and a quantum dot layer on a side of the plurality of light emitting elements away from the base substrate. A respective one of the plurality of light emitting elements includes a first light emitting layer and a second light emitting layer sequentially stacked. The first light emitting layer is configured to emit a first light of a first wavelength range. The second light emitting layer is configured to emit a second light of a second wavelength range. The plurality of light emitting elements are configured to respectively emit a composite light. The quantum dot blocks of different colors are configured to respectively convert the composite light into light of different colors respectively in different subpixels.

公开(公告)号：US20210142722A1

公开(公告)日：2021-05-13

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 ,  H01L27/32 ,  H01L51/52 ,  H01L51/56

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：US20240431143A1

公开(公告)日：2024-12-26

申请号：US17907489

申请日：2021-12-24

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xiaohu Li ,  Lu Wang ,  Zhiqiang Jiao ,  Liangliang Kang ,  Xiaoyun Liu ,  Peng Wang

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

Abstract: An array substrate is provided. The array substrate includes a plurality of subpixels. A respective subpixel of the plurality of subpixels includes a first transistor. The first transistor includes a gate electrode; a first electrode on the gate electrode; a semiconductor material layer on a side of the first electrode away from the gate electrode; a second electrode on a side of the semiconductor material layer away from the first electrode; an organic layer on a side of the second electrode away from the semiconductor material layer; and a third electrode on a side of the organic layer away from the second electrode. An orthographic projection of the second electrode on a base substrate at least partially overlaps with an orthographic projection of the organic layer on the base substrate.

公开(公告)号：US11737332B2

公开(公告)日：2023-08-22

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: H01L23/00 ,  H10K59/35 ,  H10K50/11 ,  H10K50/115 ,  H10K50/17 ,  H10K59/38 ,  H10K71/00 ,  H10K101/10 ,  H10K101/40

CPC classification number: H10K59/353 ,  H10K50/11 ,  H10K50/115 ,  H10K50/171 ,  H10K59/38 ,  H10K71/00 ,  H10K2101/10 ,  H10K2101/40

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：US20250072201A1

公开(公告)日：2025-02-27

申请号：US18281675

申请日：2022-11-24

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xiaoyun Liu ,  Liangliang Kang ,  Xiaohu Li

IPC: H10K50/13 ,  H10K101/00 ,  H10K101/30

Abstract: A light emitting device, a display substrate and a display device, relate to the technical field of displaying. The light emitting device including: a plurality of luminescent layers, wherein each of the plurality of luminescent layers includes at least one subject sublayer and at least one object sublayer, and the at least one subject sublayer and the at least one object sublayer are disposed alternately; wherein thicknesses of at least a part of subject sublayers are greater than or equal to a thickness of the object sublayer. The concentration quenching phenomenon of the luminescent layer in the light emitting device is improved, the luminous efficiency is improved, and the service life of the device is extended.

公开(公告)号：US11751432B2

公开(公告)日：2023-09-05

申请号：US17251863

申请日：2020-05-07

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaoyun Liu ,  Liangliang Kang ,  Xiaofen Wang ,  Qian Jin ,  Tun Liu ,  Yan Fan

IPC: H10K59/12 ,  H10K50/844 ,  H10K71/00 ,  H10K77/10

CPC classification number: H10K59/12 ,  H10K50/844 ,  H10K71/00 ,  H10K77/111 ,  H10K59/1201

Abstract: The present disclosure relates to the technical field of display, and provided thereby are a display device, a flexible display panel and a manufacturing method therefor. The flexible display panel comprises a flexible substrate and a plurality of pixel islands arranged in an array on the flexible substrate; the pixel islands have a display region and a peripheral region surrounding the display region, and each pixel island comprises a driving layer, a first electrode layer, a light emitting layer and a second electrode layer that are sequentially stacked on the flexible substrate; the first electrode layer comprises a first electrode located in the display region and a peripheral electrode located in the peripheral region; the peripheral electrode surrounds the display region, and a surface of the peripheral electrode away from the flexible substrate is provided with a barrier structure surrounding the display region, a preset spacing being present between the barrier structure and the display region; and the light emitting layer is intermittently provided in a region directly opposite to the barrier structure and a region located within a range of the preset spacing.

公开(公告)号：US20220005884A1

公开(公告)日：2022-01-06

申请号：US16769563

申请日：2019-08-07

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 display panel having a plurality of subpixels is provided. The display panel includes a base substrate; a plurality of light emitting elements on the base substrate; and a quantum dot layer on a side of the plurality of light emitting elements away from the base substrate. A respective one of the plurality of light emitting elements includes a first light emitting layer and a second light emitting layer sequentially stacked. The first light emitting layer is configured to emit a first light of a first wavelength range. The second light emitting layer is configured to emit a second light of a second wavelength range. The plurality of light emitting elements are configured to respectively emit a composite light. The quantum dot blocks of different colors are configured to respectively convert the composite light into light of different colors respectively in different subpixels.

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.