Patents by Inventor Dacheng Zhang

Dacheng Zhang 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: 20250089365
    Abstract: A display substrate including a base substrate and a driving module arranged on the base substrate, the driving module includes at least one driving unit, and the driving unit includes N stages of driving circuits; N is a positive integer, n is a positive integer less than or equal to N; the nth stage of driving circuit includes a (2n?1)th stage of output circuit, a 2nth stage of output circuit and a first node control circuit; the first node is electrically connected to the (2n?1)th stage of output circuit and the 2nth stage of output circuit respectively through a first connection line; the driving module also includes a scanning line; there are at least two mutually independent overlapping portions between the orthographic projection of the first connection line on the base substrate and the orthographic projection of the scanning line on the base substrate.
    Type: Application
    Filed: July 28, 2022
    Publication date: March 13, 2025
    Applicants: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can YUAN, Luke DING, Zhidong YUAN, Liu WU, Yongqian LI, Dacheng ZHANG, Cheng XU, Dandan ZHOU
  • Patent number: 12245455
    Abstract: A display substrate includes a substrate and a light-emitting device layer which includes a first electrode layer, a light-emitting functional layer, and a second electrode layer that are sequentially stacked in a direction away from the substrate. The first electrode layer includes a reflective layer, an insulating layer, and a transparent conductive layer that are sequentially stacked in the direction away from the substrate. In a red sub-pixel region, a thickness of a first portion of the insulating layer is within a range of about 1000 ? to about 2500 ?. In a green sub-pixel region, a thickness of a second portion of the insulating layer is within a range of about 500 ? to about 2000 ?. In a blue sub-pixel region, a thickness of a third portion of the insulating layer is within a range of about 1500 ? to about 3000 ?.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: March 4, 2025
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Li Liu, Pengcheng Lu, Kui Zhang, Yunlong Li, Shengji Yang, Kuanta Huang, Xiaochuan Chen, Dacheng Zhang
  • Patent number: 12238969
    Abstract: The present disclosure provides a display substrate, a method for manufacturing the same, and a display device. The display substrate includes a drive circuit layer disposed on a base substrate and a light emitting structure layer disposed on a side of the drive circuit layer away from the base substrate. The light emitting structure layer includes an anode, an organic light emitting layer, a cathode, and an auxiliary electrode. The organic light emitting layer is respectively connected to the anode and the cathode, and the cathode is connected to the auxiliary electrode; in a plane parallel to the display substrate, an edge of the auxiliary electrode is provided with a structure depressed towards a center of the auxiliary electrode.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: February 25, 2025
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Tongshang Su, Bin Zhou, Jun Cheng, Qinghe Wang, Yongchao Huang, Dacheng Zhang, Liangchen Yan
  • Patent number: 12236885
    Abstract: A shift register is provided to include a voltage control circuit coupled to an output control node; at least one driving output circuit, each including an output transistor and a capacitor structure sequentially arranged along a first direction; a first conductive line therebetween and extending along a second direction and coupled to a signal output line configured for the driving output circuit; the output transistor includes a gate electrode coupled to the output control node and a first voltage writing electrode of the capacitor structure, a first electrode coupled to a clock signal line configured for the driving output circuit and a second electrode coupled to the first conductive line; a second conductive line is disposed between the first conductive line and the capacitor structure, and the first conductive line is coupled to a second voltage writing electrode of the capacitor structure through the second conductive line.
    Type: Grant
    Filed: November 18, 2022
    Date of Patent: February 25, 2025
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Dacheng Zhang, Yongqian Li, Mingming Xie
  • Patent number: 12238983
    Abstract: A display substrate and a manufacturing method and a display device are provided. The display substrate includes: a first electrode pattern, a connecting electrode pattern, a second electrode, a light-emitting functional layer and a first dummy electrode pattern. The first electrode pattern is includes a plurality of first electrodes spaced apart from each other. The second electrode is connected with the connecting electrode pattern, the second electrode and the first electrode pattern are spaced apart from each other. The first dummy electrode pattern includes a plurality of first dummy electrodes; the connecting electrode pattern surrounds the first electrode pattern, the first dummy electrode pattern is located between the connecting electrode pattern and the first electrode pattern, and at least two of the plurality of first dummy electrodes are each of a block shape and are spaced apart from each other.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: February 25, 2025
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yunlong Li, Pengcheng Lu, Li Liu, Yu Ao, Yuanlan Tian, Zhijian Zhu, Dacheng Zhang
  • Patent number: 12232363
    Abstract: Provided are a display substrate, a manufacturing method thereof and a display apparatus. The display substrate includes multiple sub-pixels, wherein each sub-pixel includes a light-emitting region and a non-light-emitting region, and each sub-pixel is provided with a drive circuit; the drive circuit includes a storage capacitor and multiple transistors; for each sub-pixel, the multiple transistors are in the non-light-emitting region, the storage capacitor is a transparent capacitor, and an orthographic projection of the storage capacitor on a base substrate coincides with the light-emitting region. A first electrode of the storage capacitor is disposed in a same layer as an active layer of the multiple transistors, but in a different layer from source and drain electrodes of the multiple transistors, and a second electrode of the storage capacitor is on a side of the first electrode close to the base substrate.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: February 18, 2025
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Pan Xu, Yongqian Li, Guoying Wang, Dacheng Zhang, Chen Xu, Lang Liu, Xing Zhang, Ling Wang, Yicheng Lin, Ying Han
  • Publication number: 20250056977
    Abstract: A display substrate, a preparation method thereof, and a display apparatus, the display substrate includes a base substrate; a drive circuit layer provided on the base substrate; a light-emitting structure layer provided on a side of the drive circuit layer away from the base substrate, the light-emitting structure layer includes a pixel defining layer and an organic light-emitting layer, the pixel defining layer defines multiple sub-pixel regions and includes a first opening at least partially exposing the drive circuit layer, the organic light-emitting layer is located in the sub-pixel region and is overlapped with the first opening of the pixel defining layer; and a color film structure layer provided on a side of the light-emitting structure layer away from the base substrate, the color film structure layer includes a color film and a black matrix, the black matrix includes a second opening at least partially exposing the first opening.
    Type: Application
    Filed: October 31, 2024
    Publication date: February 13, 2025
    Inventors: Jingjing XU, Pan LI, Dacheng ZHANG
  • Publication number: 20250056994
    Abstract: Embodiments of the present disclosure provide a display panel and a display device. The display panel includes a base substrate, a plurality of pixel units and a plurality of gate line groups. At least one pixel unit includes a plurality of sub-pixels. At least one sub-pixel includes a sensing transistor and a driving transistor. Each gate line group includes a first gate line and a second gate line; for the first gate line and the second gate line corresponding to the sub-pixels in the same row, the positions of the sensing transistors are closer to the second gate lines, and the positions of the driving transistors are closer to the first gate line, For two sub-pixels close to each other and located in different pixel units in the same row, at least one signal line has a double-layer alignment structure, and the double-layer alignments are electrically connected with each other.
    Type: Application
    Filed: October 31, 2024
    Publication date: February 13, 2025
    Inventors: Zhongyuan WU, Yongqian LI, Can YUAN, Zhidong YUAN, Meng LI, Dacheng ZHANG, Lang LIU
  • Publication number: 20250048871
    Abstract: A display substrate and a display device are provided. The display substrate includes a base substrate, organic light-emitting elements, a data line, and an electrode line. The organic light-emitting element includes a first electrode, a light-emitting layer and a second electrode sequentially stacked; the data line is located between the base substrate and the organic light-emitting element; the electrode line is on the same layer as the data line and located in a region outside a light-emitting region of the organic light-emitting element. The display substrate further includes at least one connection portion, which is in the region outside the light-emitting region and is configured to connect the electrode line and the first electrode, the connection portion is spaced apart from the second electrode, and the light-emitting layer covers the second electrode and the at least one connection portion.
    Type: Application
    Filed: October 18, 2024
    Publication date: February 6, 2025
    Inventors: Ning LIU, Dacheng ZHANG, Tong WU, Jun LIU, Qinghe WANG, Yang ZHANG, Bin ZHOU, Liangchen YAN, Huadong WANG, Chongchong LIU, Jie ZHANG
  • Patent number: 12219795
    Abstract: Provided are a display substrate and a preparation method thereof, and a display device. The display substrate includes a base substrate, a light-emitting element disposed on the base substrate, and an encapsulation layer disposed on the light-emitting element, the display substrate further comprises a driving circuit connected with the light-emitting element and configured to drive the light-emitting element, the driving circuit comprises a driving transistor which comprises an active layer located inside the base substrate; the encapsulation layer comprises a first gradient layer and a second gradient layer stacked along a direction away from the base substrate, a content of oxygen element in the first gradient layer gradually decreases, and a content of carbon element in the second gradient layer gradually increases along the direction away from the base substrate.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: February 4, 2025
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Qing Wang, Kuanta Huang, Xiaochuan Chen, Dacheng Zhang
  • Patent number: 12219851
    Abstract: The present disclosure provides an array substrate including a driving circuit board, and a first electrode layer, an insulating layer, and an anode structure sequentially stacked thereon. The anode structure includes a reflective layer, an intermediate dielectric layer, and a transparent conductive layer sequentially provided in a direction away from the driving circuit board. The array substrate has first, second, and third pixel regions. The anode structure includes first, second, and third anode structures. The first electrode layer includes first, second and third sub-portions. The first, second and third anode structures are coupled with the first, second and third sub-portions through first, second and third via holes in the insulating layer, respectively. A surface of the insulating layer in contact with the first, second and third anode structures is flush; and a thickness of the intermediate dielectric layer in the second, first and third anode structures increases sequentially.
    Type: Grant
    Filed: May 22, 2023
    Date of Patent: February 4, 2025
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Li Liu, Pengcheng Lu, Rongrong Shi, Yuanlan Tian, Junbo Wei, Dacheng Zhang
  • Publication number: 20250037656
    Abstract: A display substrate includes an underlay substrate and a plurality of pixel unit groups. The plurality of pixel unit groups are located in a display region of the underlay substrate. At least one pixel unit group includes a plurality of sub-pixel groups, wherein at least one sub-pixel group includes a pixel circuit. The pixel circuit includes a first sub-pixel circuit, a second sub-pixel circuit, and a light emitting control sub-circuit. The first sub-pixel circuit and the second sub-pixel circuit are both electrically connected to the light emitting control sub-circuit. The light emitting control sub-circuit is configured to control a first light emitting element electrically connected to the first sub-pixel circuit to emit light, and to control a second light emitting element electrically connected to the second sub-pixel circuit to emit light.
    Type: Application
    Filed: October 12, 2024
    Publication date: January 30, 2025
    Inventors: Zhidong YUAN, Yongqian LI, Dacheng ZHANG, Jingbo XU, Can YUAN
  • Patent number: 12200989
    Abstract: Provided in the present disclosure are a display substrate and a preparation method therefor, and a display apparatus. The display substrate comprises a plurality of display units, each display unit comprising a display area and a transparent area, and the display area comprising a plurality of sub-pixels; each sub-pixel comprises a second metal layer and a third metal layer, the second metal layer comprising a first scanning line and a second scanning line defining a display row, the third metal layer comprising a first power source line, a second power source line, a compensation line, and a data line defining the plurality of sub-pixels; the first power source line, the second power source line, the compensation line, and the data line all comprise a vertical linear section and a horizontal polyline section.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: January 14, 2025
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yongqian Li, Zhenhua Qiu, Ying Wang, Meng Li, Dongxu Han, Dacheng Zhang, Shi Sun
  • Publication number: 20250015237
    Abstract: A display module is provided. The display module includes a light modulation layer, and the light modulation layer is located between a color film layer and a display substrate. The light modulation layer includes a plurality of modulation portions, and a modulation portion is correspondingly disposed between a light-emitting portion and a color film portion. The modulation portion includes a modulation structure and a transmission structure. The color film portion includes a first region and a second region. An orthogonal projection of the transmission structure on the corresponding color film portion is located within the first region. The second region is adjacent to another color film portion of a different color, and an orthogonal projection of the modulation structure on the corresponding color film portion is located in the second region. The modulation structure is used to converge exit light of the corresponding light-emitting portion.
    Type: Application
    Filed: November 30, 2022
    Publication date: January 9, 2025
    Inventors: Weiting PENG, Qian WU, Wei WANG, Xianqin MENG, Fang CHENG, Yutong YAN, Dacheng ZHANG
  • Publication number: 20250014662
    Abstract: The disclosure provides a shift register unit, including: a sensing control circuit configured to write an active level signal to a sensing control node; a first sensing input circuit connected to a first pull-up back node and configured to write an active level signal to the first pull-up back node; a first display input circuit connected to a first pull-up node and configured to write an active level signal to the first pull-up node; a first switch circuit connected in series between the first pull-up node and the first pull-up back node and configured to control connection and disconnection between the first pull-up node and the first pull-up back node in response to control of a signal from a switch signal input terminal; and a first driving output circuit connected to the first pull-up back node and configured to write a signal to a first driving signal output terminal.
    Type: Application
    Filed: July 21, 2022
    Publication date: January 9, 2025
    Inventors: Xuehuan FENG, Dacheng ZHANG
  • Patent number: 12193297
    Abstract: Embodiments of the present disclosure provide a display panel and a display device. The display panel includes a base substrate, a plurality of pixel units and a plurality of gate line groups. At least one pixel unit includes a plurality of sub-pixels. At least one sub-pixel includes a sensing transistor and a driving transistor. Each gate line group includes a first gate line and a second gate line; for the first gate line and the second gate line corresponding to the sub-pixels in the same row, the positions of the sensing transistors are closer to the second gate lines, and the positions of the driving transistors are closer to the first gate line, For two sub-pixels close to each other and located in different pixel units in the same row, at least one signal line has a double-layer alignment structure, and the double-layer alignments are electrically connected with each other.
    Type: Grant
    Filed: October 23, 2023
    Date of Patent: January 7, 2025
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhongyuan Wu, Yongqian Li, Can Yuan, Zhidong Yuan, Meng Li, Dacheng Zhang, Lang Liu
  • Patent number: 12183278
    Abstract: A display substrate includes an underlay substrate and a plurality of pixel unit groups. The plurality of pixel unit groups are located in a display region of the underlay substrate. At least one pixel unit group includes a plurality of sub-pixel groups, wherein at least one sub-pixel group includes a pixel circuit. The pixel circuit includes a first sub-pixel circuit, a second sub-pixel circuit, and a light emitting control sub-circuit. The first sub-pixel circuit and the second sub-pixel circuit are both electrically connected to the light emitting control sub-circuit. The light emitting control sub-circuit is configured to control a first light emitting element electrically connected to the first sub-pixel circuit to emit light, and to control a second light emitting element electrically connected to the second sub-pixel circuit to emit light.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: December 31, 2024
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhidong Yuan, Yongqian Li, Dacheng Zhang, Jingbo Xu, Can Yuan
  • Patent number: 12185565
    Abstract: The present disclosure provides a display panel, a method for preparing the same, and a display device. The display panel includes: a display substrate, including a base substrate, a driving transistor embedded on the base substrate, and a first electrode layer located on the base substrate; an encapsulation protection structure located on the display substrate and surrounding a display area of the display substrate; a light emitting layer located on a surface of the first electrode layer away from the base substrate; a second electrode layer located on a surface of the light emitting layer away from the base substrate; and a first encapsulation layer located on a surface of the second electrode layer away from the base substrate.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: December 31, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kui Zhang, Li Liu, Pengcheng Lu, Yunlong Li, Dacheng Zhang
  • Patent number: 12171126
    Abstract: A display substrate, a manufacturing method thereof, and a display device are provided. The display substrate includes a base substrate, organic light-emitting elements, a data line, and an electrode line. The organic light-emitting element includes a first electrode, a light-emitting layer and a second electrode sequentially stacked; the data line is located between the base substrate and the organic light-emitting element; the electrode line is on the same layer as the data line and located in a region outside a light-emitting region of the organic light-emitting element. The display substrate further includes at least one connection portion, which is in the region outside the light-emitting region and is configured to connect the electrode line and the first electrode, the connection portion is spaced apart from the second electrode, and the light-emitting layer covers the second electrode and the at least one connection portion.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: December 17, 2024
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY GROUP CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ning Liu, Dacheng Zhang, Tong Wu, Jun Liu, Qinghe Wang, Yang Zhang, Bin Zhou, Liangchen Yan, Huadong Wang, Chongchong Liu, Jie Zhang
  • Publication number: 20240414955
    Abstract: A display panel includes a driving backplane, a first electrode layer, a pixel definition layer, a light-emitting layer and a second electrode. The first electrode layer is disposed on one side of the driving backplane and includes a plurality of first electrodes. The pixel definition layer is arranged on the side, same as the first electrode layer, of the driving backplane and being provided with a pixel opening exposing each of the first electrodes. The pixel definition layer is provided with a separation slot formed between adjacent ones of the first electrodes; and a first cut-off slot is provided on a sidewall of the pixel definition layer. The light-emitting layer covers the cut-off layer and the first electrode layer. The second electrode covers the light-emitting layer.
    Type: Application
    Filed: August 19, 2024
    Publication date: December 12, 2024
    Inventors: Shengji YANG, Xiaochuan Chen, Xue Dong, Hui Wang, Dacheng Zhang, Kuanta Huang, Pengcheng Lu, Zhiqiang Jiao