Patents by Inventor Yanjun Hao

Yanjun Hao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250098403
    Abstract: A display panel, including a substrate, and a first electrode, at least two emission functional layers and a second electrode sequentially stacked on a side of the substrate, where for any two adjacent emission functional layers, one close to the substrate includes a first hole transport layer, a first emission layer, a first electron transport layer, and an N-type charge generation layer sequentially stacked away from the substrate, and the other away from the substrate includes a P-type charge generation layer, a second hole transport layer, a second emission layer, and a second electron transport layer sequentially stacked away from the N-type charge generation layer; the first electron transport layer has a thickness ranging from 3 nm to 10 nm; the first electron transport layer includes first, second and third subportions; and the first subportion has a thickness smaller than those of the second and third subportions.
    Type: Application
    Filed: March 29, 2023
    Publication date: March 20, 2025
    Inventors: Pengfei ZUO, Guanyin WEN, Yanjun HAO, Hui ZHOU, Qixiao WU, Huameng LIU
  • Publication number: 20250089508
    Abstract: A display substrate includes a base, a light-emitting device layer and a light extraction layer disposed in sequence. The base includes first sub-pixel regions, second sub-pixel regions and third sub-pixel regions. The light-emitting device layer includes first light-emitting devices, second light-emitting devices and third light-emitting devices that emit light of different colors. The light extraction layer includes first light extraction portions, second light extraction portions and third light extraction portions. The first light extraction portion and first light-emitting device are located in the first sub-pixel region, the second light extraction portion and second light-emitting device are located in the second sub-pixel region, and the third light extraction portion and third light-emitting device are located in the third sub-pixel region.
    Type: Application
    Filed: May 30, 2022
    Publication date: March 13, 2025
    Inventors: Caiyu QU, Yanjun HAO
  • Publication number: 20240298497
    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.
    Type: Application
    Filed: June 20, 2022
    Publication date: September 5, 2024
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Bei Wang, Guanyin Wen, Xiaobo Du, Huameng Liu, Yanjun Hao
  • Patent number: 12033425
    Abstract: Provided is a display panel including a base substrate, a display function film layer, a filter film layer, and a fingerprint recognition circuit. The display function film layer is disposed on the base substrate, and the display function film layer is provided with a plurality of light-emitting regions. The filter film layer is disposed on a side of the display function film layer away from the base substrate, wherein the filter film layer is capable of transmitting light emitted from the plurality of light-emitting regions, and a material of the filter film layer comprises a conductive material. The fingerprint recognition circuit is disposed on the base substrate, wherein the fingerprint recognition circuit is connected to the filter film layer, and configured for fingerprint recognition based on light reflected by an obstacle and received by the filter film layer.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: July 9, 2024
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Caiyu Qu, Yanjun Hao, Hao Liu, Hejin Wang, Huijuan Zhang, Zheng Liu
  • Patent number: 11980079
    Abstract: An array substrate, a display panel, a display apparatus, and a method for manufacturing the array substrate are provided. The array substrate includes: a base substrate; a plurality of pixels, at least one of the pixels including a pixel driver circuit and a light-emitting unit electrically connected to the pixel driver circuit; a fingerprint recognition structure including a first capacitor electrode configured to form a capacitor for fingerprint recognition between at least a part of a touch body and the first capacitor electrode in response to the at least a part of the touch body covering the first capacitor electrode. The fingerprint recognition structure is in the at least one pixel, the pixel driver circuit includes a thin film transistor including an active layer and a gate, and the first capacitor electrode is in the same layer as one of the active layer or the gate of the thin film transistor.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: May 7, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Caiyu Qu, Yanjun Hao, Hao Liu, Zunqing Song, Dong Li, Huijuan Zhang, Zheng Liu
  • Patent number: 11927784
    Abstract: Provided is an anti-dazzling device, including a first electrode, a second electrode and a dimming structure, wherein the first electrode and the second electrode are disposed opposite to each other, and the dimming structure is disposed between the first electrode and the second electrode and is configured to change a light transmittance of the anti-dazzling device under action of voltage. An OLED display device and a method for manufacturing an anti-dazzling device are also provided.
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: March 12, 2024
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Caiyu Qu, Yanjun Hao, Huijuan Zhang, Xueyan Tian, Zheng Liu
  • Patent number: 11923379
    Abstract: Provided is a method for preparing a display substrate. The method includes: providing a substrate, the substrate including a plurality of pixel island regions spaced apart and a plurality of bridge regions connecting adjacent pixel island regions; forming thin film transistors and first signal lines in the pixel island regions, and forming first connecting bridges in the bridge regions; and forming second signal lines, second connecting bridges, and a source/drain layer on the substrate by a one-time patterning process.
    Type: Grant
    Filed: April 4, 2023
    Date of Patent: March 5, 2024
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Caiyu Qu, Fangxu Cao, Yanjun Hao, Huijuan Zhang, Yibing Fan, Zunqing Song, Dengyun Chen
  • Publication number: 20240057368
    Abstract: A display panel and a manufacturing method therefor, and a display apparatus. The display panel includes: a hole transport layer; a buffer layer, including at least one of first and second buffer layers respectively in first and second sub-pixels; a light-emitting layer, HOMO energy level difference between the first light-emitting layer and the first hole transport layer being a first difference, and absolute value of HOMO energy level difference between the second light-emitting layer and the second hole transport layer being greater than 0 and less than the first difference; and a cathode. HOMO energy levels of first buffer sub-layers gradually increase in the direction from the first hole transport layer to the first light-emitting layer. HOMO energy level difference between the second light-emitting layer and the second buffer layer or the second buffer layer and the second hole transport layer is greater than or equal to 0.3 eV.
    Type: Application
    Filed: October 22, 2021
    Publication date: February 15, 2024
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yanjun HAO, Caiyu QU, Xiaobo DU
  • Publication number: 20230354636
    Abstract: An organic light emitting diode, a manufacturing method thereof, a display substrate and a display apparatus are disclosed. The organic light emitting diode includes: a first electrode and a second electrode opposite to each other and a first hole transport layer, a first electron blocking layer, a blue emission layer, at least one first hole blocking layer, and a first electron transport layer, which are between the first electrode and the second electrode and sequentially arranged in a direction approaching the second electrode, wherein a total thickness of all the at least one first hole blocking layer is greater than a thickness of the first electron blocking layer.
    Type: Application
    Filed: October 28, 2021
    Publication date: November 2, 2023
    Inventors: Yanjun HAO, Caiyu QU, Guanyin WEN, Songquan WU, Pengfei ZUO, Xiaobo DU, Yansong LI
  • Publication number: 20230238397
    Abstract: Provided is a method for preparing a display substrate. The method includes: providing a substrate, the substrate including a plurality of pixel island regions spaced apart and a plurality of bridge regions connecting adjacent pixel island regions; forming thin film transistors and first signal lines in the pixel island regions, and forming first connecting bridges in the bridge regions; and forming second signal lines, second connecting bridges, and a source/drain layer on the substrate by a one-time patterning process.
    Type: Application
    Filed: April 4, 2023
    Publication date: July 27, 2023
    Inventors: Caiyu QU, Fangxu CAO, Yanjun HAO, Huijuan ZHANG, Yibing FAN, Zunqing SONG, Dengyun CHEN
  • Publication number: 20230189565
    Abstract: A thin film transistor is provided. The thin film transistor is disposed on a base substrate and includes: a first active layer; a first gate disposed on a side of the first active layer; a first insulating layer disposed on a side of the first gate away from the base substrate; and a source and a drain. The first gate includes a stacked structure including: a first conductive layer; and a first barrier layer disposed on a side of the first conductive layer away from the base substrate, where a side of the first barrier layer away from the base substrate is in direct contact with a side of the first insulating layer proximate to the base substrate. The first barrier layer includes TiNx1, where 0?x1<0.2, and x1 is a molar ratio of N to Ti.
    Type: Application
    Filed: September 30, 2021
    Publication date: June 15, 2023
    Inventors: Caiyu Qu, Yanjun Hao, Huijuan Zhang, Yibing Fan, Dengyun Chen, Zunqing Song, Dong Li, Zheng Liu
  • Patent number: 11670646
    Abstract: Provided are a display substrate, a preparation method thereof, and a display device. The display substrate includes: a substrate, a thin film transistor disposed in a pixel island region of the substrate, a first signal line disposed in the pixel island region and a first connecting bridge disposed in a bridge region of the substrate, wherein the first connecting bridge is electrically connected to a gate of the thin film transistor.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: June 6, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Caiyu Qu, Fangxu Cao, Yanjun Hao, Huijuan Zhang, Yibing Fan, Zunqing Song, Dengyun Chen
  • Publication number: 20230172002
    Abstract: Provided are a method for preparing an organic light-emitting display panel, an organic light-emitting display panel, and a display device. The method comprises: forming a pixel defining layer on one side of a substrate; forming a pixel supporting layer on the side of the pixel defining layer away from the substrate, and causing the orthographic projection of the surface of the pixel supporting layer that faces the pixel defining layer on the substrate to be within the range of the orthographic projection of the side surface of the pixel supporting layer away from the pixel defining layer on the substrate; forming a light-emitting functional layer on the side of the pixel supporting layer away from the pixel defining layer; and removing the pixel supporting layer to obtain an organic light-emitting display panel.
    Type: Application
    Filed: August 4, 2021
    Publication date: June 1, 2023
    Inventors: Yanjun HAO, Caiyu QU, Xiaobo DU, Yansong LI
  • Publication number: 20230172025
    Abstract: An array substrate, a display panel, a display apparatus, and a method for manufacturing the array substrate are provided. The array substrate includes: a base substrate; a plurality of pixels, at least one of the pixels including a pixel driver circuit and a light-emitting unit electrically connected to the pixel driver circuit; a fingerprint recognition structure including a first capacitor electrode configured to form a capacitor for fingerprint recognition between at least a part of a touch body and the first capacitor electrode in response to the at least a part of the touch body covering the first capacitor electrode. The fingerprint recognition structure is in the at least one pixel, the pixel driver circuit includes a thin film transistor including an active layer and a gate, and the first capacitor electrode is in the same layer as one of the active layer or the gate of the thin film transistor.
    Type: Application
    Filed: March 9, 2021
    Publication date: June 1, 2023
    Inventors: Caiyu Qu, Yanjun Hao, Hao Liu, Zunqing Song, Dong Li, Huijuan Zhang, Zheng Liu
  • Publication number: 20230054532
    Abstract: The present application relates to the technical field of display, and discloses a display panel, a preparation method therefor, and a display apparatus. The material of a filter film layer in the display panel comprises a conductive material, so the filter film layer may be used as a detection plate of a fingerprint identification circuit. Moreover, since the filter film layer is located on the side of a display function film layer away from a base substrate, the filter film layer is far away from a signal line in the display function film layer, and is not easily affected by the signal line. When the filter film layer is used as the detection plate, the signal-to-noise ratio of a fingerprint signal detected by the fingerprint identification circuit may be larger, and the fingerprint identification effect may be better.
    Type: Application
    Filed: October 25, 2021
    Publication date: February 23, 2023
    Inventors: Caiyu QU, Yanjun HAO, Hao LIU, Hejin WANG, Huijuan ZHANG, Zheng LIU
  • Publication number: 20220099874
    Abstract: Provided is an anti-dazzling device, including a first electrode, a second electrode and a dimming structure, wherein the first electrode and the second electrode are disposed opposite to each other, and the dimming structure is disposed between the first electrode and the second electrode and is configured to change a light transmittance of the anti-dazzling device under action of voltage. An OLED display device and a method for manufacturing an anti-dazzling device are also provided.
    Type: Application
    Filed: September 23, 2021
    Publication date: March 31, 2022
    Inventors: Caiyu QU, Yanjun HAO, Huijuan ZHANG, Xueyan TIAN, Zheng LIU
  • Publication number: 20220020782
    Abstract: Provided are a display substrate, a preparation method thereof, and a display device. The display substrate includes: a substrate, a thin film transistor disposed in a pixel island region of the substrate, a first signal line disposed in the pixel island region and a first connecting bridge disposed in a bridge region of the substrate, wherein the first connecting bridge is electrically connected to a gate of the thin film transistor.
    Type: Application
    Filed: March 8, 2021
    Publication date: January 20, 2022
    Inventors: Caiyu Qu, Fangxu Cao, Yanjun Hao, Huijuan Zhang, Yibing Fan, Zunqing Song, Dengyun Chen