Patents by Inventor Rongrong Li

Rongrong Li 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).

  • Patent number: 11978399
    Abstract: A pixel drive circuit, a display panel and a display device. In the pixel drive circuit, a voltage-stabilization transistor is arranged, and the voltage-stabilization transistor is provided with two control ends, each of the two control ends forms a voltage-stabilization capacitor with the active layer, thereby a new capacitor is added on the basis of the original parasitic capacitor. The new capacitor has a relatively large capacitance value. The potential variation at the control end of the drive transistor depends on the parasitic capacitor of the drive transistor, the storage capacitor at the control end of the drive transistor, and the capacitance value of the new capacitor, when the capacitive coupling effect occurs, the voltage at the control end of the drive transistor can be jointly maintained by the above three capacitors, thereby improving the effect of voltage stabilization.
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: May 7, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Xiufeng Zhou, Xin Yuan, Rongrong Li
  • Publication number: 20240145486
    Abstract: The present disclosures provide a driving substrate and a display device. The driving substrate includes a base, a first metal layer and a second metal layer, and a connection layer. The first metal layer includes a first wiring and the second metal layer includes a second wiring. A part of the connection layer extends to the first through hole to form a first conductive hole and another part extends to second through hole to from a second conductive hole. A first conductive hole and a second conductive hole form a group of conductive connection holes. The current path formed by the first conductive hole passing through the connection layer to the corresponding second conductive hole is the intra-group current path, while the current path formed by the first conductive hole passing through the connection layer to the second conductive hole in any other group is the extra-group path.
    Type: Application
    Filed: June 13, 2023
    Publication date: May 2, 2024
    Inventors: Zeyao LI, Rongrong LI
  • Publication number: 20240136364
    Abstract: An array substrate and a method for manufacturing the same, and a display panel are provided. The array substrate includes a base substrate, gate lines, data lines, and multiple pixel units. The pixel unit includes a pixel electrode, a drive circuit, and a sharing electrode. The pixel electrode is electrically connected to the drive circuit. The drive circuit includes a first thin-film transistor, a second thin-film transistor, and a third thin-film transistor. A source of the third thin-film transistor is connected to a drain of the second thin-film transistor. A drain of the third thin-film transistor is connected to the sharing electrode. The sharing electrode includes a first sharing electrode and a second sharing electrode electrically connected to the first sharing electrode. The projection of the first sharing electrode on the base substrate at least partially overlaps the projection of the pixel electrode on the base substrate.
    Type: Application
    Filed: June 27, 2023
    Publication date: April 25, 2024
    Inventors: Shasha LI, Rongrong LI
  • Patent number: 11965805
    Abstract: A sampling device and method for evaluating ecological risk of soil in a high geological background area comprises an impact sampling mechanism, a soil layer stripping mechanism and an auxiliary support frame. The impact sampling mechanism comprises a sampling hopper with a downward opening. A connecting sliding rod is fixedly arranged on the top of the sampling hopper. An upper end of the connecting sliding rod is connected with an impact rod. The impact rod is internally provided with an impact hammer capable of reciprocating along an axis of the impact rod. The soil layer stripping mechanism comprises a stripping sliding cylinder in sliding fit with the connecting sliding rod, and a support disc. A plurality of stripping plates are connected to a lower side edge of the support disc in a sliding fit mode.
    Type: Grant
    Filed: June 13, 2023
    Date of Patent: April 23, 2024
    Assignees: Nanjing Institute of Environmental Sciences, MEE, Anhui Provincial Academy of Eco-Environmental Science Research
    Inventors: Rongrong Ying, Wenbing Ji, Caiyi Zhao, Bing Xia, Yuanyuan Lu, Xiaoyu Zhang, Zhewei Hu, Yanhong Feng, Qi Li, Aijing Yin, Hongfeng Chen
  • Patent number: 11967273
    Abstract: A control circuit, a drive device, and a display. The control circuit includes: a control unit and a detection unit. The detection unit is connected with a plurality of output voltage feedback terminals of a drive chip, and the detection unit is connected with the control unit. The detection unit is configured for providing a first voltage to the control unit when a voltage of at least one output voltage feedback terminal in the plurality of output voltage feedback terminals is detected, the first voltage being greater than a second voltage received by the control unit. The control unit is configured for controlling the drive chip to restart when the first voltage is greater than the second voltage.
    Type: Grant
    Filed: December 23, 2022
    Date of Patent: April 23, 2024
    Assignees: MIANYANG HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITED
    Inventors: Peiyang Lin, Honghai Liu, Xiaowei Han, Rongrong Li
  • Patent number: 11967296
    Abstract: In the field of liquid crystal display technology, a liquid crystal display device and a driving method thereof. The driving method includes steps of: detecting whether a light leakage has occurred in the liquid crystal display device; and adjusting a turn-off voltage output from a gate driver to a gate of a switch element to reduce an absolute value of a voltage difference between the turn-off voltage and a common voltage when the light leakage has occurred in the liquid crystal display device. In the embodiments, the phenomenon of light leakage at the dislocation caused by the dislocation between the color filter substrate and the array substrate when the liquid crystal display device is subjected to external pressure can be effectively improved, thereby improving the display effect of the liquid crystal display device.
    Type: Grant
    Filed: October 3, 2022
    Date of Patent: April 23, 2024
    Assignees: CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITED
    Inventors: Zeyao Li, Rongrong Li
  • Patent number: 11967646
    Abstract: Disclosed are a thin film transistor structure, a display panel and a display device. The thin film transistor structure includes a base, a source electrode, a drain electrode configured to connect to a pixel electrode and a grid electrode. The source electrode, the drain electrode and the grid electrode are provided on the base. and a channel is formed between the source electrode and the drain electrode. The thin film transistor structure further includes an insulating layer and a slow-release electrode. The insulating layer is provided on a side of the source electrode and the drain electrode, and filled in the channel. The slow-release electrode is provided in the insulating layer. At least a part of the slow-release electrode is provided inside the channel.
    Type: Grant
    Filed: June 1, 2023
    Date of Patent: April 23, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Keming Yang, Yizhen Xu, Chunhui Ren, Feng Jiang, Liu He, Qiang Leng, Rongrong Li
  • Publication number: 20240130202
    Abstract: A display panel includes an active area and a peripheral area surrounding the active area, and the display panel further includes: a substrate and a plurality of light emitting devices arranged on the substrate in array, wherein the plurality of light emitting devices are located at least in the active area; a conducting layer comprising a cathode ring and cathodes of the plurality of light emitting devices, wherein the cathode ring is located in the peripheral area, and the cathode ring surrounds the active area; and a lens layer located at a side of the light emitting devices away from the substrate, wherein the lens layer extends from the active area to the peripheral area; wherein an orthographic projection of the lens layer on the substrate is located within an area delineated by an outer contour of an orthographic projection of the cathode ring on the substrate.
    Type: Application
    Filed: October 18, 2022
    Publication date: April 18, 2024
    Applicants: Yunnan Invensight Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Chao Pu, Shengji Yang, Junyan Yang, Xiaochuan Chen, Kuanta Huang, Pengcheng Lu, Dachao Li, Rongrong Shi, Junbo Wei, Xiao Bai, Bo Yang
  • Patent number: 11955590
    Abstract: The present disclosure provides a display panel and a method for making the display panel. The method for making the display panel includes: providing a substrate; preparing a driving circuit layer on one side of the substrate; the driving circuit layer includes a binding layer, a display base and an array circuit layer which are stacked, and the binding layer is located between the display base and the substrate. Removing the substrate and the binding layer is exposed; binding the external control unit on the binding layer.
    Type: Grant
    Filed: December 28, 2022
    Date of Patent: April 9, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Zeyao Li, Rongrong Li
  • Publication number: 20240102891
    Abstract: A sampling device and method for evaluating ecological risk of soil in a high geological background area comprises an impact sampling mechanism, a soil layer stripping mechanism and an auxiliary support frame. The impact sampling mechanism comprises a sampling hopper with a downward opening. A connecting sliding rod is fixedly arranged on the top of the sampling hopper. An upper end of the connecting sliding rod is connected with an impact rod. The impact rod is internally provided with an impact hammer capable of reciprocating along an axis of the impact rod. The soil layer stripping mechanism comprises a stripping sliding cylinder in sliding fit with the connecting sliding rod, and a support disc. A plurality of stripping plates are connected to a lower side edge of the support disc in a sliding fit mode.
    Type: Application
    Filed: June 13, 2023
    Publication date: March 28, 2024
    Applicants: Nanjing Institute of Environmental Sciences, MEE, Anhui Provincial Academy of Eco-Environmental Science Research
    Inventors: Rongrong YING, Wenbing JI, Caiyi ZHAO, Bing XIA, Yuanyuan LU, Xiaoyu ZHANG, Zhewei HU, Yanhong FENG, Qi LI, Aijing YIN, Hongfeng CHEN
  • Patent number: 11942020
    Abstract: Disclosed is a driving circuit including an input circuit, a first output circuit, a second output circuit and a pull-down circuit. Control terminals of the first output circuit and the second output circuit are connected with an output terminal of the input circuit and receive a control signal from the input circuit, and output terminals of the first output circuit and the second output circuit are connected with the pull-down circuit and receive a pull-down signal. Thus, two stages of driving signals output by one stage driving circuit is realized. As compared with the existing architecture under which the two stage driving circuit is needed to output two stages of driving signals, one input circuit and one pull-down circuit are removed. This application also discloses a four-stage driving circuit and a display panel. The number of used components is reduced, and the frame of the display product is narrowed.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: March 26, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Byung Hoon Kim, Zhaoyang Lu, Sahng Ik Jun, Rongrong Li
  • Publication number: 20240088298
    Abstract: Disclosed are a thin film transistor structure, a display panel and a display device. The thin film transistor structure includes a base, a source electrode, a drain electrode configured to connect to a pixel electrode and a grid electrode. The source electrode, the drain electrode and the grid electrode are provided on the base. and a channel is formed between the source electrode and the drain electrode. The thin film transistor structure further includes an insulating layer and a slow-release electrode. The insulating layer is provided on a side of the source electrode and the drain electrode, and filled in the channel. The slow-release electrode is provided in the insulating layer. At least a part of the slow-release electrode is provided inside the channel.
    Type: Application
    Filed: June 1, 2023
    Publication date: March 14, 2024
    Applicant: HKC CORPORATION LIMITED
    Inventors: Keming YANG, Yizhen XU, Chunhui REN, Feng JIANG, Liu HE, Qiang LENG, Rongrong LI
  • Publication number: 20240085748
    Abstract: The present disclosure provides a display device and a manufacturing method thereof. The display device includes a display module and a function module. The display module includes a first substrate and a plurality of light emitting units. The plurality of light emitting units are located on a side of the first substrate. A light emitting direction of the light emitting units are oriented towards the first substrate. The function module is located on a surface of the first substrate away from the light emitting units. The function module and the light emitting units share the first substrate. A surface of the function module close to the first substrate is in direct contact with the surface of the first substrate away from the light emitting units.
    Type: Application
    Filed: June 16, 2023
    Publication date: March 14, 2024
    Inventors: Hao HUANG, Rongrong LI
  • Publication number: 20240087344
    Abstract: A computer system obtains the image including one or more text areas, and generates a sequence of feature maps from the image based on a downsampling rate. Each feature map has a first dimension and a second dimension, and the feature maps include a first feature map and a second feature map. Each of the first and second dimensions of the first feature map has a respective size that is reduced to that of a respective dimension of the second feature map by the downsampling rate. The second feature map is upsampled by an upsampling rate using a local context-aware upsampling network. The upsampled second feature map is aggregated with the first feature map to generate an aggregated first feature map. The one or more text areas are identified in the image based on the aggregated first feature map.
    Type: Application
    Filed: April 26, 2023
    Publication date: March 14, 2024
    Inventors: Jiachen LI, Rongrong LIU, Yuan LIN
  • Patent number: 11927847
    Abstract: A display panel and a display device are provided. The display panel includes a light-filtering layer, a color film substrate, a driving substrate, and a reflecting layer. The reflecting layer, the driving substrate, the light-filtering layer, and the color film substrate are stacked in sequence. The light-filtering layer includes a black matrix with multiple second openings, and each of the multiple second openings is filled with one light-filtering sub-pixel. The reflecting layer defines multiple first openings, and each of the multiple first openings is aligned with one second opening.
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: March 12, 2024
    Assignees: CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITED
    Inventors: Ye Wan, Rongrong Li
  • Patent number: 11929044
    Abstract: The disclosure provides a backlight module. The backlight module has a first light-emitting region and a second light-emitting region encircling the first light-emitting region. The backlight module further includes at least one first light-emitting module and at least one second light-emitting module, the at least one second light-emitting module is arranged on a peripheral side of the first light-emitting module, the at least one first light-emitting module is located in the first light-emitting region, and the at least one second light-emitting module is located in the second light-emitting region. The first light-emitting module includes multiple first light strings, the second light-emitting module includes multiple second light strings, and the multiple first light strings has a layout density greater than the multiple second light strings.
    Type: Grant
    Filed: June 28, 2023
    Date of Patent: March 12, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Bin Qiu, Rongrong Li
  • Patent number: 11922896
    Abstract: An array substrate is provided. The array substrate includes a first surface and a second surface opposite to the first surface. The array substrate further includes multiple first common lines and multiple second common lines. The multiple first common lines extend along a first direction and are arranged on the first surface at intervals of a first distance along a second direction, the multiple second common lines extend along the second direction and are arranged on the second surface at intervals of a second distance along the first direction. The first common line and the second common line are electrically connected to each other through the array substrate, and the first common line and the second common line are configured to transmit a common voltage to the pixel unit, the pixel unit is driven to display an image by the common voltage and the data signal.
    Type: Grant
    Filed: June 14, 2023
    Date of Patent: March 5, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Zhiwei Li, Rongrong Li
  • Patent number: 11923532
    Abstract: A pre-lithiated silicon-based anode includes a silicon-based anode, lithium disposed on a surface or in an interior of the silicon-based anode, and a protective coating on the surface of the silicon-based anode. The pre-lithiated silicon-based anode allows subsequent processing to be performed safely in the atmosphere.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: March 5, 2024
    Assignee: Robert Bosch GmbH
    Inventors: Rongrong Jiang, Jingjun Zhang, Yuqian Dou, Lei Wang, Chuanling Li, Yunhua Chen, Xiaogang Hao, Qiang Lu
  • Publication number: 20240071309
    Abstract: A drive circuit of a display panel and a display device are provided in the disclosure. The drive circuit includes a voltage output module. The voltage output module includes a voltage input terminal, a voltage output terminal, a detection module, and an isolation module. The voltage input terminal is configured to receive a voltage signal. The voltage output terminal is electrically coupled with the display panel. The detection module is electrically coupled with the voltage input terminal and configured to determine whether a voltage value of the voltage signal received at the voltage input terminal is greater than or equal to a preset voltage threshold. The detection module is configured to output a second control signal when the voltage value of the voltage signal is less than the preset voltage threshold.
    Type: Application
    Filed: December 29, 2022
    Publication date: February 29, 2024
    Inventors: Renjie ZHOU, Rongrong LI
  • Patent number: 11915662
    Abstract: A backlight module includes at least one drive light-emitting group. The drive light-emitting group includes a drive unit provided with plurality of signal transmission channels, a plurality of light-emitting units and a plurality of line groups. The signal transmission channel is connected to the light-emitting unit through the line group. The signal transmission channel, the line group and the light-emitting unit are arranged in one-to-one correspondence. The line group includes a main transmission line and a compensation line arranged in parallel. The compensation lines of the plurality of line groups are connected through a control switch group. When there is an abnormal signal transmission channel, the control switch group is enabled to control a compensation line corresponding to the abnormal signal transmission channel to be conducted with compensation line corresponding to at least one normal signal transmission channel.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: February 27, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Bin Qiu, Rongrong Li