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).
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Patent number: 12238969Abstract: 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: GrantFiled: February 26, 2021Date of Patent: February 25, 2025Assignees: 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
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Patent number: 12236885Abstract: 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: GrantFiled: November 18, 2022Date of Patent: February 25, 2025Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xuehuan Feng, Dacheng Zhang, Yongqian Li, Mingming Xie
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Patent number: 12232363Abstract: 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: GrantFiled: August 19, 2020Date of Patent: February 18, 2025Assignee: 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
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Publication number: 20250056977Abstract: 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: ApplicationFiled: October 31, 2024Publication date: February 13, 2025Inventors: Jingjing XU, Pan LI, Dacheng ZHANG
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Publication number: 20250056994Abstract: 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: ApplicationFiled: October 31, 2024Publication date: February 13, 2025Inventors: Zhongyuan WU, Yongqian LI, Can YUAN, Zhidong YUAN, Meng LI, Dacheng ZHANG, Lang LIU
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Publication number: 20250048871Abstract: 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: ApplicationFiled: October 18, 2024Publication date: February 6, 2025Inventors: Ning LIU, Dacheng ZHANG, Tong WU, Jun LIU, Qinghe WANG, Yang ZHANG, Bin ZHOU, Liangchen YAN, Huadong WANG, Chongchong LIU, Jie ZHANG
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Patent number: 12219795Abstract: 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: GrantFiled: March 27, 2020Date of Patent: February 4, 2025Assignee: BOE Technology Group Co., Ltd.Inventors: Qing Wang, Kuanta Huang, Xiaochuan Chen, Dacheng Zhang
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Patent number: 12219851Abstract: 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: GrantFiled: May 22, 2023Date of Patent: February 4, 2025Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Li Liu, Pengcheng Lu, Rongrong Shi, Yuanlan Tian, Junbo Wei, Dacheng Zhang
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Publication number: 20250037656Abstract: 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: ApplicationFiled: October 12, 2024Publication date: January 30, 2025Inventors: Zhidong YUAN, Yongqian LI, Dacheng ZHANG, Jingbo XU, Can YUAN
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Patent number: 12200989Abstract: 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: GrantFiled: April 12, 2021Date of Patent: January 14, 2025Assignees: 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
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Publication number: 20250015237Abstract: 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: ApplicationFiled: November 30, 2022Publication date: January 9, 2025Inventors: Weiting PENG, Qian WU, Wei WANG, Xianqin MENG, Fang CHENG, Yutong YAN, Dacheng ZHANG
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Publication number: 20250014662Abstract: 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: ApplicationFiled: July 21, 2022Publication date: January 9, 2025Inventors: Xuehuan FENG, Dacheng ZHANG
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Patent number: 12193297Abstract: 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: GrantFiled: October 23, 2023Date of Patent: January 7, 2025Assignees: 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
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Patent number: 12183278Abstract: 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: GrantFiled: July 21, 2021Date of Patent: December 31, 2024Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Zhidong Yuan, Yongqian Li, Dacheng Zhang, Jingbo Xu, Can Yuan
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Patent number: 12185565Abstract: 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: GrantFiled: March 31, 2020Date of Patent: December 31, 2024Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Kui Zhang, Li Liu, Pengcheng Lu, Yunlong Li, Dacheng Zhang
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Patent number: 12171126Abstract: 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: GrantFiled: March 31, 2021Date of Patent: December 17, 2024Assignees: 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
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Publication number: 20240414955Abstract: 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: ApplicationFiled: August 19, 2024Publication date: December 12, 2024Inventors: Shengji YANG, Xiaochuan Chen, Xue Dong, Hui Wang, Dacheng Zhang, Kuanta Huang, Pengcheng Lu, Zhiqiang Jiao
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Patent number: 12161036Abstract: A display substrate has a display area including a plurality of sub-display areas. The display substrate includes a base, a plurality of columns of pixels, a plurality of first and second power lines disposed on the base. At least two columns of pixels are disposed in each sub-display area, and each column of pixels includes at least three columns of sub-pixels. At least one first power line is disposed in each sub-display area and configured to provide a first power signal to all sub-pixels in a sub-display area. The second power lines are configured to provide second power signals to all sub-pixels. A plurality of columns of sub-pixels are disposed between any two adjacent power lines, and any first and second power lines are each arranged between two adjacent columns of sub-pixels emitting light of a first color and sub-pixels emitting light of a second color.Type: GrantFiled: November 17, 2020Date of Patent: December 3, 2024Assignee: Beijing BOE Technology Development Co., Ltd.Inventors: Pan Xu, Yongqian Li, Dacheng Zhang, Lang Liu
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Patent number: 12154494Abstract: A display substrate and a display device are provided. The display substrate includes a base substrate, a plurality of pixels, a plurality of gate lines and a plurality of data lines, wherein the base substrate has a plurality of transparent regions and a plurality of display regions; the pixels are on the base substrate and within the display regions; each pixel includes a plurality of sub pixels; the sub pixels of each pixel are divided into two rows of sub pixels; the gate lines and the data lines are on the base substrate; the sub pixels of a first pixel are connected with the same gate line; the gate line connected with the sub pixels of the first pixel is between the two rows of sub pixels of the first pixel; and the first pixel is any one of the plurality of pixels.Type: GrantFiled: May 13, 2021Date of Patent: November 26, 2024Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Meng Li, Yongqian Li, Chen Xu, Jingquan Wang, Dacheng Zhang, Yu Wang, Zhidong Yuan, Zhenhua Qiu
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Publication number: 20240386845Abstract: The present disclosure provides a signal selection circuit and a signal selection method of a display panel, and a display device. The display panel has N regions and includes pixel driving circuits and M gate driving circuits for providing M gate driving signals to the pixel driving circuits; each gate driving circuit includes N gate driving sub-circuits, each of which is configured to provide one gate driving signal to the pixel driving circuits in one region; M?2, N?2, and M and N are integers; the signal selection circuit includes: M frame start signal lines, each of which is configured to provide a frame start signal for one gate driving circuit; and a selection sub-circuit configured to output frame start signals written by the frame start signal lines to the gate driving sub-circuits corresponding to the regions of the display panel according to a preset sequence.Type: ApplicationFiled: June 29, 2022Publication date: November 21, 2024Inventors: Zhidong YUAN, Cheng XU, Dacheng ZHANG, Can YUAN, Xiuting LIU, Yongqian LI