Patents Assigned to HKC CORPORATION LIMITED
  • Patent number: 11967282
    Abstract: A display panel and a display device, related to the field of display technology. The display panel includes a first sub-pixel, a first pixel circuit, a second sub-pixel and a second pixel circuit. The first sub-pixel and the second sub-pixel have the same luminous color. When the display panel is configured to display a same frame of image, the first sub-pixel is driven by the first pixel circuit to emit light, or the second sub-pixel is driven by the second pixel circuit to emit light. In this case, when multiple frames of images are continuously displayed by the display panel, the first sub-pixel and the second sub-pixel can emit light alternately, such that the service life of the display panel can be prolonged, and the performance and competitiveness of the product can be improved.
    Type: Grant
    Filed: July 20, 2023
    Date of Patent: April 23, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Liao Xu, Baohong Kang
  • Patent number: 11967281
    Abstract: Disclosed are a driving circuit, a driving method, and a display panel. The method includes: turning on the first thin film transistor to control the voltage of the first node to be an initialization voltage; then controlling the voltage of the second node to be a threshold voltage based on the respective voltage difference between the initialization voltage and the turned-on second and the fourth thin film transistor; turning on the third thin film transistor to compensate the threshold voltage to obtain a driving voltage; turning on the fifth thin film transistor to access the driving current by the driving voltage, the driving current is controlled to pass through the turned-on sixth thin film transistor to drive the light-emitting diode.
    Type: Grant
    Filed: June 21, 2023
    Date of Patent: April 23, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Renjie Zhou, Baohong Kang
  • Patent number: 11967275
    Abstract: A light-emitting drive circuit, which includes cascaded N light-emitting drive sub-circuits, and an n-th light-emitting drive sub-circuit, includes: a first pull-up control sub-circuit configured to pull up a potential of a first node to a first potential in a trigger phase; a first pull-down control sub-circuit configured to pull down the potential of the first node to a second potential in an output phase and pull up the potential of the first node to a third potential in a reset phase; a pull-up sub-circuit configured to pull up an n-th stage light-emitting drive signal to a high potential; a second pull-down control sub-circuit configured to pull up a potential of a second node to a fourth potential in the output phase; and a pull-down sub-circuit configured to pull down the n-th stage light-emitting drive signal to a low potential.
    Type: Grant
    Filed: July 14, 2023
    Date of Patent: April 23, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Xiufeng Zhou, Xin Yuan, Haijiang Yuan
  • Patent number: 11967283
    Abstract: A pixel drive circuit, including a data input circuit, an energy storage circuit, a light-emitting control circuit, a first switch circuit, a second switch circuit and a third switch circuit. An end of the first switch circuit is connected with a control end of the light-emitting control circuit, and another end of the first switch circuit is connected with an input of the light-emitting control circuit that is connected to a power supply. An end of the second switch circuit is connected with an output of the data input circuit, and another end of the second switch circuit is grounded, and an output of the light-emitting control circuit is connected to an anode of a light-emitting device. The first switch circuit and the second switch circuit are switched on in a reset phase, and the third switch circuit is switched on in a light-emitting phase.
    Type: Grant
    Filed: July 26, 2023
    Date of Patent: April 23, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Renjie Zhou, Haoxuan Zheng
  • 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
  • Patent number: 11961440
    Abstract: A method for driving a display device is provided. The method includes: obtaining a refresh frequency of a current frame image; adjusting a common voltage of all pixels in a second vertical blank interval to control a difference value between a root mean square of voltage differences between common voltages and pixel voltages of the pixels in a first vertical blank interval when a reference frame image is displayed, and a root mean square of voltage differences between common voltages and pixel voltages of the pixels in the second vertical blank interval when a current frame image is displayed to be within a preset-voltage-difference-range, such that the difference in decrease levels of potentials of the pixels at different refresh frequencies are greatly reduced, the screen brightness displayed on the display device at different refresh frequencies tend to be consistent, and a screen flicker phenomenon is further improved.
    Type: Grant
    Filed: August 1, 2022
    Date of Patent: April 16, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Zeyao Li, Haijiang Yuan
  • Patent number: 11961482
    Abstract: A pixel circuit and a pixel drive method. The pixel circuit includes at least two sub-pixel drive sub-circuits, the sub-pixel drive sub-circuits include an input component, a compensation component, a drive component, a first light-emitting control component and a first light-emitting element, the input component is configured to receive a data voltage signal and a first scan signal. The compensation component is configured to receive a second scan signal. The first light-emitting control component is configured to receive a power supply signal and a first control signal. An output of the drive component in the plurality of sub-pixel drive sub-circuits is coupled to an output of a first reset sub-circuit, and the first reset sub-circuit is configured to receive an initial voltage signal and a third scan signal.
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: April 16, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Zhaoyang Lu, Haoxuan Zheng
  • Patent number: 11960181
    Abstract: Disclosed are an array substrate, a display panel and a display. The array substrate is provided with a thin film transistor and a gate driving circuit. A trigger signal input terminal of the gate driving circuit corresponds to an output terminal of the thin film transistor, a first insulating layer is provided between a first metal layer corresponding to the output terminal of the thin film transistor and a second metal layer corresponding to the trigger signal input terminal of the gate driving circuit. A projected area of the first metal layer on the first insulating layer is partially overlapped with a projected area of the second metal layer on the first insulating layer.
    Type: Grant
    Filed: June 14, 2023
    Date of Patent: April 16, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Hongyan Chang, Bing Han, Haijiang Yuan
  • Patent number: 11961439
    Abstract: A display panel, a driving method and a display device are disclosed. The display panel is divided into a first area and a second area arranged along a data line direction. Multiple sub-pixels corresponding to a same row of scan line are connected to data lines in one-to-one correspondence. In the first area and second area, each column of sub-pixels is arranged between two adjacent data lines, where the same column of sub-pixels includes multiple sub-pixel groups, each of which includes at least one sub-pixel. Among two adjacent data lines, one data line is connected with the sub-pixels in the odd groups, and the other is connected with the sub-pixels in the even groups. The sub-pixel groups in the first area and the corresponding sub-pixel groups in the second area are axially symmetrical with respect to a boundary line between the first area and the second area.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: April 16, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Jie Chen, Jianlei Li, Haijiang Yuan
  • Patent number: 11961852
    Abstract: Disclosed is a manufacture method of the array substrate, including: sequentially forming a gate, a gate insulating layer, an active layer, an ohmic contact layer and a metal layer on a substrate, forming a photoetching mask on the metal layer, where thickness of the photoetching mask in a half exposure area of the mask plate is from 2000 ? to 6000 ?; etching the metal layer, the ohmic contact layer and the active layer outside a covering area of the photoetching mask; ashing the photoetching mask for a preset time with an ashing reactant, wherein the ashing reactant comprises oxygen, and the preset time is from 70 seconds to 100 seconds; and sequentially etching the metal layer, the ohmic contact layer and the active layer based on the ashed photoetching mask, and forming a channel region of the array substrate. The present disclosure further discloses an array substrate, and a display panel.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: April 16, 2024
    Assignees: HKC CORPORATION LIMITED, CHUZHOU HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: En-Tsung Cho, Fengyun Yang, Yuming Xia, Je-Hao Hsu, Zhen Liu, Hejing Zhang, Wanfei Yong
  • Patent number: 11961467
    Abstract: A compensation circuit, a control chip, and a display device are provided to solve a problem of low luminance of OLED display panels due to an existence of drifting of threshold voltage of the OLED display panels. The compensation circuit is applied to a drive circuit which includes a first TFT, a second TFT, an OLED, and a capacitance. The compensation circuit includes a third TFT and a detection circuit. A control electrode of the third TFT is configured to be connected with a second electrode of the second TFT, a first electrode of the third TFT is configured to be connected with a control electrode of the second TFT. The detection circuit is configured to be turned off and turned on respectively when receiving two continuous voltage signals output from the second electrode of the third TFT.
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: April 16, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Renjie Zhou, Haijiang Yuan
  • Patent number: 11960113
    Abstract: A backlight module and a display device are disclosed. The backlight module includes a back plate, a light plate, and a plurality of lamp beads. The light plate is arranged opposite to the back plate. The plurality of lamp beads are arranged on a side of the light plate facing away from the back plate. The back plate includes a back plate body, at least one sunken groove, and a thermally conductive adhesive.
    Type: Grant
    Filed: December 26, 2022
    Date of Patent: April 16, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Xiaohui Yang, Baohong Kang
  • Publication number: 20240119879
    Abstract: A driving circuit and a driving device for a display panel, and the driving circuit for the display panel includes: a stretching circuit, a control circuit, a bootstrapping circuit, and an output circuit; the control circuit is respectively electrically connected with the stretching circuit, the bootstrapping circuit, and the output circuit, and the bootstrapping circuit is electrically connected with the output circuit. The stretching signal generated by the stretching circuit can enable the bootstrapping circuit to have enough time to be charged, and ensure that the output circuit can reach or exceed the preset potential when receiving the bootstrap signal, thereby the voltage being not stable when the gate driving signal is output is avoided, and the phenomenon that the gate driving signal is stopped in advance is avoided.
    Type: Application
    Filed: December 30, 2021
    Publication date: April 11, 2024
    Applicant: HKC CORPORATION LIMITED
    Inventors: Jing HE, Baohong KANG
  • Patent number: 11953792
    Abstract: The irregularly-shaped display panel comprises a plurality of pixel units arranged in an array and a shielding layer. some of the pixel units are shielded by the shielding layer to form irregularly-shaped pixel units, and each of the irregularly-shaped pixel unit at least comprises a first irregularly-shaped pixel unit; in the first irregularly-shaped pixel unit, the areas of opening regions of at least two sub-pixels shielded by the shielding layer are different, and the sub-pixel having a larger area of an opening region shielded by the shielding layer has a greater pixel pressure difference.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: April 9, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Li Lv, Tingting Shen, Yunyang Liu, Yuchun Xu, Guangchen Zhang, Zhiwei Li, Haijiang Yuan
  • 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
  • Patent number: 11955050
    Abstract: The transistor structure includes a transistor and a plurality of gate lines electrically connected to the transistor, wherein the transistor includes a semiconductor layer and a source and a drain that are disposed on the semiconductor layer, the source is connected to a source region of the semiconductor layer, and the drain is connected to a drain region of the semiconductor layer; and the transistor further includes a plurality of gates disposed corresponding to a channel region of the semiconductor layer, wherein the plurality of gates are spaced in a length direction of the source and the drain, and the plurality of gates are connected to the plurality of gate lines in a one-to-one correspondence. The technical solution of the present application can compensate and adjust the transistor after a working environment temperature changes, to avoid abnormal display.
    Type: Grant
    Filed: December 28, 2022
    Date of Patent: April 9, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Dujuan Yin, Haoxuan Zheng
  • Patent number: 11953717
    Abstract: Disclosed are a backplane assembly, a backlight module and a display. The backplane assembly includes a bottom backplane, an upper frame, a locking assembly, a bearing body and a first elastic member; the bottom backplane has a bottom wall, and the upper frame is arranged above the bottom backplane; the upper frame has opposite first and second sides; a connecting line from the first side to the second side is parallel to the bottom wall of the bottom backplane, and the first side is provided with a rotating shaft extending toward the bottom backplane.
    Type: Grant
    Filed: August 9, 2023
    Date of Patent: April 9, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Qinglin Chen, Haijiang Yuan
  • Patent number: 11953718
    Abstract: A display apparatus and a display method are provided. The display apparatus includes a display panel, a display film assembly, a privacy film assembly, and a light source. The display film assembly includes a first light guide plate and an optical film. The optical privacy film assembly includes a second light guide plate and a privacy film. The privacy film is configured to adjust divergent lights exiting the second light guide plate into privacy lights at a preset angle. The light source is configured to emit incident lights to be selectively irradiated to the first light guide plate or the second light guide plate, so that the display apparatus is able to switch between a normal display mode and a privacy display mode.
    Type: Grant
    Filed: December 28, 2022
    Date of Patent: April 9, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Li Wu, Baohong Kang
  • Patent number: 11955055
    Abstract: A display panel driving method includes: obtaining a target grayscale value of each pixel unit in picture data of a frame to be displayed; determining, based on the target grayscale value of the pixel unit in the picture data of the frame to be displayed, a target pixel unit row that needs luminance compensation in the frame to be displayed; and if a display panel is driven to display a picture of the frame to be displayed, when a non-target pixel unit row is scanned, outputting, through scanning lines corresponding to the non-target pixel unit row, scanning signals with turn-on voltages each equal to a first turn-on voltage; and when a target pixel unit row is scanned, outputting, through scanning lines corresponding to the target pixel unit row, scanning signals with turn-on voltages higher than the first turn-on voltage.
    Type: Grant
    Filed: August 25, 2023
    Date of Patent: April 9, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Peidi Huang, Tao Gu, Baohong Kang
  • Patent number: 11947224
    Abstract: A display panel is provided. The display panel includes a display region and a non-display region surrounding a periphery of the display region. The non-display region includes a multiple corner regions and multiple linear regions. The display panel further includes a first substrate, a second substrate, a liquid crystal layer, and a bezel assembly. The bezel assembly includes multiple support members and multiple sealant. At least one of the multiple support members is disposed in the corner region and the sealant is disposed in the linear region. The support member and the sealant bonds the first substrate and the second substrate. Two opposite ends of the sealant are respectively connected with one of the support members in two corner regions, and the liquid crystal layer is sealed between the first substrate and the second substrate. A display device having the display panel is also provided.
    Type: Grant
    Filed: June 14, 2023
    Date of Patent: April 2, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Jianying Zhang, Baohong Kang