公开(公告)号：US20240215318A1

公开(公告)日：2024-06-27

申请号：US17920626

申请日：2021-11-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Lei ZHAO ,  Zhiqiang JIAO ,  Xiaohu LI ,  Xiaoyun LIU ,  Shuilang DONG ,  Guangcai YUAN ,  Lilei ZHANG

IPC: H10K59/122

CPC classification number: H10K59/122

Abstract: A display substrate is provided, the display substrate has a plurality of sub-pixels, and includes a driving circuit substrate, a plurality of first electrodes, a pixel definition layer and a light-emitting material layer. The driving circuit substrate includes a plurality of pixel driving circuits and a protective insulating layer, the protective insulating layer includes a plurality of first vias, and the plurality of first electrodes are respectively electrically connected to the output terminals of the plurality of pixel driving circuits through the first vias. The pixel definition layer includes a plurality of sub-pixel openings and at least one partition structure. The light-emitting material layer at least in the plurality of sub-pixel openings, the pixel definition layer includes a first pixel definition sub-layer and a second pixel definition sub-layer, and a width of the second pixel definition sub-layer is greater than a width of the first pixel defining sub-layer.

公开(公告)号：US20240099066A1

公开(公告)日：2024-03-21

申请号：US18026365

申请日：2022-05-31

Applicant: Yunnan Invensight Optoelectronics Technology Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Yuhao LEE ,  Xue DONG ,  Xiaochuan CHEN ,  Hui TONG ,  Xiaobin SHEN ,  Kuanta HUANG ,  Cao WU ,  Weiliang BU ,  Hui WANG ,  Zhiqiang JIAO

IPC: H10K59/122

CPC classification number: H10K59/122

Abstract: Disclosed are a display substrate. The display substrate includes a drive backplane; a first electrode layer disposed on a side of the drive backplane; a pixel definition layer disposed on a side, distal to the drive backplane, of the first electrode layer; an organic light-emitting layer disposed on a side, distal to the drive backplane, of the pixel definition layer, wherein the organic light-emitting layer comprises: a plurality of organic material layers stacked in a direction perpendicular to and away from the drive backplane, and a portion of the organic material layer disposed inside the partition groove is separated from a portion of the organic material layer disposed outside the partition groove; and a second electrode layer disposed on a side, distal to the drive backplane, of the organic light-emitting layer.

公开(公告)号：US20230165094A1

公开(公告)日：2023-05-25

申请号：US17630906

申请日：2021-03-24

Applicant: BOE Technology Group Co., Ltd.

Inventor： Huajie YAN ,  Haibin ZHU ,  Xiaohu LI ,  Zhiqiang JIAO

IPC: H10K59/32 ,  H10K59/122 ,  H10K59/35 ,  H10K59/12

CPC classification number: H10K59/32 ,  H10K59/122 ,  H10K59/353 ,  H10K59/1201

Abstract: The present disclosure relates to a display device, a display panel and a driving circuit, and a driving method. The display panel includes a driving backplane and a light emitting device layer, and the driving backplane includes multiple pixel driving circuits, the light emitting device layer includes multiple light emitting units distributed in an array, the light emitting unit includes multiple light emitting devices stacked in a direction away from the driving backplane, and light emitting devices other than a light emitting device closest to the driving backplane in a direction perpendicular to the driving backplane are transparent devices; and in the same light emitting unit, at least part of the light emitting devices are coupled to the pixel driving circuits for emitting light under driving of the pixel driving circuits, and at least two light emitting devices in the same light emitting unit have different light emitting materials.

公开(公告)号：US20230006011A1

公开(公告)日：2023-01-05

申请号：US17784449

申请日：2021-08-05

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xiaohu LI ,  Huajie YAN ,  Lu WANG ,  Zhiqiang JIAO

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

Abstract: Provided are a display panel and a manufacturing method therefor, and a display device, relating to the technical field of display. The thickness of a second part of a first electrode of a sub-pixel in the display panel can be relatively large, capable of blocking a light-emitting film layer; light emitted by part of the film layer located above a first part of the first electrode is transmitted to the area where an adjacent sub-pixel is located, light emitted by the light-emitting film layer in the sub-pixel is prevented from being emitted out of a second electrode of the adjacent sub-pixel, and then crosstalk of light of a plurality of sub-pixels is prevented.

公开(公告)号：US20220077426A1

公开(公告)日：2022-03-10

申请号：US17362819

申请日：2021-06-29

Applicant: BOE Technology Group Co., Ltd.

Inventor： Fudong CHEN ,  Qingyu HUANG ,  Juan ZHANG ,  Zhiqiang JIAO

IPC: H01L51/52 ,  H01L51/50 ,  H01L51/00 ,  H01L51/56

Abstract: A light-emitting diode includes an anode layer, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, an electron injection layer and a cathode layer which are laminated sequentially. The light-emitting diode meets at least one of the following conditions: a refractive index of the hole transport layer is greater than a refractive index of the light-emitting layer; and a refractive index of the electron transport layer is greater than the refractive index of the light-emitting layer.

公开(公告)号：US20220020944A1

公开(公告)日：2022-01-20

申请号：US17359603

申请日：2021-06-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Qingyu HUANG ,  Fudong CHEN ,  Huajie YAN ,  Wenqi LIU ,  Zhiqiang JIAO

IPC: H01L51/50 ,  H01L51/56

Abstract: The present application provides a WOLED device and a preparation method thereof, a WOLED display panel. The WOLED device includes: an anode; a cathode, disposed opposite to the anode; a red-fluorescence emitting layer, disposed on a side of the anode close to the cathode; a green-fluorescence emitting layer, disposed on a side of the red-fluorescence emitting layer close to the cathode; an interlayer, disposed on a side of the green-fluorescence emitting layer; and a blue-fluorescence emitting layer, disposed on a side of the interlayer close to the cathode.

公开(公告)号：US20210376266A1

公开(公告)日：2021-12-02

申请号：US16763966

申请日：2019-12-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaohu LI ,  Jinxiang XUE ,  Zhiqiang JIAO

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

Abstract: The present disclosure discloses a stretch display device and a preparation method. The method includes providing a substrate on which a flexible substrate is disposed, and a film layer constituting a thin film transistor disposed on a side of the flexible substrate away from the substrate, the film layer being away from the flexible substrate. One side defines a plurality of pixel regions; a hollow portion is formed between adjacent two of the pixel regions, the hollow portion penetrates through the film layer and the flexible substrate; and thermal separation is provided in the hollow portion via a gel; a light-emitting element is disposed in the pixel region, and an encapsulating film layer is disposed on a side of the light-emitting element and the thermal separation gel away from the flexible substrate; heating the thermal separation gel, and the flexible liner. The bottom and the substrate are peeled off. Therefore, when the substrate is peeled off by this method, the problem of breakage of the flexible substrate and the film layer constituting the thin film transistor can be alleviated, and the production yield of the stretch display device can be remarkably improved.

公开(公告)号：US20210288255A1

公开(公告)日：2021-09-16

申请号：US17058858

申请日：2020-04-09

Applicant: BOE Technology Group Co., Ltd.

Inventor： Tun Liu ,  Zhiqiang JIAO

IPC: H01L51/00 ,  H01L51/56

Abstract: A method for manufacturing a display substrate, a display substrate and a display device are provided. The method includes: forming a pixel defining layer for defining a plurality of pixel regions on a base substrate; forming a photodegradable layer between adjacent pixel regions on a side of the pixel defining layer distal to the base substrate; forming an evaporated layer on the base substrate on which the photodegradable layer is formed; and irradiating the photodegradable layer with a photolysis light to decompose the photodegradable layer so that the evaporated layer is disconnected between adjacent pixel regions.

公开(公告)号：US20210157164A1

公开(公告)日：2021-05-27

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

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：US20210027674A1

公开(公告)日：2021-01-28

申请号：US17041811

申请日：2020-02-11

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yanan NIU ,  Hongwei TIAN ,  Zhongyuan SUN ,  Jing NIU ,  Lei CHEN ,  Wei HUANG ,  Zhiqiang JIAO

IPC: G09F9/30 ,  H01L51/00 ,  H01L51/56

Abstract: The present disclosure provides a display panel and a manufacturing method of the display panel, and a display apparatus, and belongs to the field of display technology. The display panel of the present disclosure includes a flexible substrate and a support substrate, wherein the support substrate supports the flexible substrate; a plurality of display units are provided on the flexible substrate; the display panel further includes: a first magnetic unit; a second magnetic unit; the first magnetic unit and the second magnetic unit are used for jointing the flexible substrate to the support substrate through a magnetic field therebetween.