公开(公告)号：US12302712B2

公开(公告)日：2025-05-13

申请号：US17768830

申请日：2021-06-17

Applicant: BOE Technology Group Co., Ltd.

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

IPC: H10K59/124 ,  H10K59/12 ,  H10K59/122 ,  H10K59/35 ,  H10K102/00

Abstract: The present disclosure provides a display panel and a display device. The display panel includes a substrate, a plurality of pixel units is arranged at a side of the substrate, each pixel unit includes a first electrode layer, a first light-emitting layer, a second electrode layer, a second light-emitting layer, a third electrode layer, a third light-emitting layer and a fourth electrode layer laminated one on another, the first light-emitting layer, the second light-emitting layer, and the third light-emitting layer emit light in different colors, and two vertically adjacent light-emitting layers share one electrode layer.

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：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：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：US11703693B2

公开(公告)日：2023-07-18

申请号：US16860733

申请日：2020-04-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaohu Li ,  Huajie Yan ,  Qingyu Huang ,  Yongfeng Zhang ,  Xiaoyun Liu ,  Zhiqiang Jiao

IPC: G02B30/27 ,  H10K50/844 ,  H10K50/858 ,  H10K59/122 ,  H10K71/00 ,  H10K59/12 ,  H10K102/00

CPC classification number: G02B30/27 ,  H10K50/844 ,  H10K50/858 ,  H10K59/122 ,  H10K71/00 ,  H10K59/1201 ,  H10K2102/351

Abstract: The present disclosure relates to an array substrate, a manufacturing method thereof, a three-dimensional display panel, and a display device. The array substrate includes a plurality of sub-pixels arranged in an array. Each sub-pixel includes a first composite region and a second composite region alternately arranged, as well as a substrate; a partition portion formed in the second composite region; a pixel electrode including a first composite electrode formed in the first composite region and a second composite electrode formed on the partition portion; an organic light emitting layer formed on a side of the pixel electrode away from the substrate; a pixel defining layer formed on the substrate provided around the organic light emitting layer; a common electrode having a polarity opposite to the pixel electrode formed on a side of organic light emitting layer away from the substrate; and a packaging layer.

公开(公告)号：US11482578B2

公开(公告)日：2022-10-25

申请号：US16639120

申请日：2019-03-27

Applicant: BOE Technology Group Co., Ltd.

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

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/56 ,  H01L51/00

Abstract: A display substrate having a plurality of subpixels is provided. The display substrate includes a base substrate; and a pixel definition layer defining a plurality of subpixel apertures. The pixel definition layer includes a smart material sub-layer comprising a smart insulating material. The display substrate in a respective one of the plurality of subpixels includes an organic light emitting layer in a respective one of the plurality of subpixel apertures.

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：US11108022B2

公开(公告)日：2021-08-31

申请号：US16491300

申请日：2019-03-22

Applicant: BOE Technology Group Co., Ltd.

Inventor： Qingyu Huang ,  Zhiqiang Jiao ,  Huajie Yan ,  Xiaoyun Liu

IPC: H01L51/52 ,  H01L51/56

Abstract: An OLED device, a method for manufacturing the same, and a display apparatus are provided. The OLED device includes: an anode; a cathode; at least two organic light emitting layers between the anode and the cathode; a charge generation layer between two adjacent organic light emitting layers. At least one of two surfaces of the charge generation layer adjacent to the two adjacent organic light emitting layers is provided with microstructures.

公开(公告)号：US20210223621A1

公开(公告)日：2021-07-22

申请号：US16760294

申请日：2019-12-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Qingyu Huang ,  Zhiqiang Jiao ,  Huajie Yan ,  Juan Zhang ,  Xiaohu Li

IPC: G02F1/1335 ,  H01L27/32 ,  G09G3/36 ,  G09G3/3208 ,  H01L51/52 ,  G02F1/1333 ,  H01L51/56

Abstract: A display panel, a method for manufacturing the same, and a method for driving the same are provided, the display panel includes a base substrate; a plurality of pixel units on the base substrate; and a controller, at least one pixel unit comprising: a light-emitting element; a reflective layer provided on a light output side of the light-emitting element and configured to receive and reflect light emitted by the light-emitting element to generate reflected light; and an optical sensor configured to receive the reflected light and measure a light intensity of the reflected light, wherein the controller is configured to adjust a light-emitting intensity of the light-emitting element based on the light intensity, wherein the light-emitting element comprises a light-emitting layer, an orthographic projection of the reflective layer on the base substrate does not overlap with an orthographic projection of the light-emitting layer on the base substrate.