Patents Assigned to HKC CORPORATION LIMITED
  • Patent number: 11947157
    Abstract: Disclosed are a backlight module and a display device. The backlight module includes a plurality of lamp boards and a backplane. The backplane has a lamp board installation side. The lamp boards are spliced at the lamp board installation side to form a light-emitting area. A fastener is provided between two adjacent lamp boards and has a first end and an opposite second end. The first end has a first connecting structure, and two opposite sides of the second end are respectively provided with a first limit portion and a second limit portion. A second connecting structure corresponding to the first connecting structure is arranged on the lamp board installation side. The fastener is connected and fixed on the lamp board installation side through the first connecting structure and the second connecting structure. The first and second limit portions are respectively abutted against sides of the two adjacent lamp boards.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: April 2, 2024
    Assignees: HKC CORPORATION LIMITED, BEIHAI HKC OPTOELECTRONICS TECHNOLOGY C0., LTD.
    Inventors: Taixin Cao, Hsu Kang Lo, Haoxuan Zheng
  • Patent number: 11948511
    Abstract: A pixel driving circuit includes: a switching transistor, an energy storage capacitor, and a driving transistor. The data voltage is charged to the energy storage capacitor when the switching transistor is conducted. When the switching transistor is switched off, the energy storage capacitor discharges to the driving transistor, allowing the driving transistor to output a driving current to the light-emitting unit to drive the light-emitting unit to emit light. The control module is connected in series with the driving transistor. In a process of the driving transistor outputting the driving current to the light-emitting unit, the control module detects a value of the driving current and is disconnected when the value of the driving current exceeds a preset current range.
    Type: Grant
    Filed: December 29, 2022
    Date of Patent: April 2, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Renjie Zhou, Haijiang Yuan
  • Patent number: 11942054
    Abstract: A driving method of a display device and a display device are disclosed, the driving method including: detecting current pixel inversion mode; determining pixel polarities and first data signals for a next frame based on pixel polarities of a current frame and the inversion mode; determining whether the next frame is an overload image based on pixel bright-or-dark values and grayscale values corresponding to the next frame and those corresponding to the overload image; when the next frame is an overload image, modifying a pixel polarity order corresponding to the first data signals, and generating and outputting second data signals to drive the display device to display the next frame; otherwise outputting the first data signals to drive the display device to display the next frame. The pixel polarities corresponding to the first data signals are in a different order than those corresponding to the second data signals.
    Type: Grant
    Filed: December 26, 2022
    Date of Patent: March 26, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Zhenghui Yuan, Tao Fan, Haijiang Yuan
  • Patent number: 11942044
    Abstract: A pixel compensation method includes determining an actual driving digital voltage of each organic light-emitting sub-pixel in a detection row; performing mean value calculation based on the actual driving digital voltage of each organic light-emitting sub-pixel in the detection row to determine an average driving digital voltage corresponding to the detection row; calculating a voltage difference between the actual driving digital voltage of the organic light-emitting sub-pixel in the detection row and the average driving digital voltage, and counting the voltage differences to form a voltage difference set; and outputting a corresponding data compensation analog voltage to the organic light-emitting sub-pixel in the detection row when an absolute value of a maximum voltage difference in the voltage difference set is greater than or equal to a target threshold. The pixel compensation method of this disclosure can improve the uneven display and improve the display effect.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: March 26, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Xueyong Huang, Haoxuan Zheng
  • Patent number: 11940699
    Abstract: Disclosed is an array substrate and a liquid crystal display panel including a display area and a non-display area at the periphery of the display area. The array substrate is provided with a plurality of conductive bonding pads distributed at intervals in the non-display area, in which the conductive bonding pad includes a first metal layer, an insulating layer and a conductive layer sequentially formed on a base substrate, in which the insulating layer is provided with a plurality of vias to electrically connect the conductive layer to the first common electrode, in which the via is provided in a slit shape and is disposed at a predetermined angle from a first direction in which the non-display area surrounds the display area.
    Type: Grant
    Filed: December 29, 2022
    Date of Patent: March 26, 2024
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yanna Yang, Haijiang Yuan
  • 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
  • Patent number: 11942038
    Abstract: Disclosed are a pixel driving circuit, a pixel driving method and a display panel. The pixel driving circuit includes the first thin film transistor, the second thin film transistor, the third thin film transistor, the fourth thin film transistor, the fifth thin film transistor, the sixth thin film transistor and the capacitor. The pixel driving circuit can be regarded as a 3 T0.5C circuit structure, so that two adjacent light-emitting devices on the same column can share a pixel driving circuit, and the threshold voltage of the driving thin film transistor and a voltage drop of the supply voltage can be compensated, thus the influence of the threshold voltage defect of the driving thin film transistor and the voltage drop of the supply voltage on the current flowing through the light-emitting device can be eliminated, to improve the display uniformity of the self-light-emitting display panel.
    Type: Grant
    Filed: June 1, 2023
    Date of Patent: March 26, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Tao Fan, Haijiang Yuan
  • Patent number: 11942036
    Abstract: A pixel circuit includes a light-emitting element, a capacitor structure, a driving transistor, and first to fourth switching elements. The first switching element connects a data line for providing a data signal to a first terminal of the capacitor structure in response to a first scan signal. The second switching element connects a first terminal of the driving transistor to a control terminal of the driving transistor and a second terminal of the capacitor structure respectively in response to a second scan signal. The third switching element connects a second terminal of the driving transistor to a first terminal of the light-emitting element in response to a third scan signal. The fourth switching element connects a first power signal terminal to the first terminal of the driving transistor in response to a fourth scan signal.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: March 26, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Renjie Zhou, Haijiang Yuan
  • Patent number: 11942039
    Abstract: A pixel driving circuit comprises a driving transistor, a storage capacitor, a trigger, a first response switch and a second response switch. The driving transistor has a first terminal connected to a power source, a second terminal connected to a light emitting unit, and a control terminal connected to the storage capacitor, and a second terminal of the storage capacitor is connected to the power source. The first response switch has a first terminal connected to a data line, a control terminal connected to a scan line, a second terminal connected to the first terminal of the storage capacitor, an input terminal of the trigger is connected to the scan line. The second response switch has a first terminal connected to the second terminal of the drive transistor, a second terminal connected to an initial voltage terminal, and a control terminal connected to an output terminal of the trigger.
    Type: Grant
    Filed: June 6, 2023
    Date of Patent: March 26, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Renjie Zhou, Haoxuan Zheng
  • Publication number: 20240094581
    Abstract: The disclosure relates to a display panel, a method of manufacturing a display panel, and a display device. The display panel includes a first polarizer, an array substrate and a color film substrate that are sequentially stacked. The array substrate includes a binding region. A first sealing adhesive is filled between the binding region and the first polarizer, covers an end of a flexible circuit board away from a mainboard, and covers the binding region, which avoids using a decorative member, reduces a wide frame of a fourth side of the display panel, and increases a real frameless display effect.
    Type: Application
    Filed: December 30, 2022
    Publication date: March 21, 2024
    Applicant: HKC CORPORATION LIMITED
    Inventors: Hailong HE, Haijiang YUAN
  • 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: 20240087524
    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: Application
    Filed: July 20, 2023
    Publication date: March 14, 2024
    Applicant: HKC CORPORATION LIMITED
    Inventors: Liao XU, Baohong Kang
  • Publication number: 20240087542
    Abstract: A driving method and a driving circuit for a display panel, and a display device. In the driving method, a binding-point voltage is first detected and a voltage difference between the binding-point voltage and a common-electrode voltage is obtained through a calculation. In case that the voltage difference between the binding-point voltage and the common-electrode voltage is smaller than a preset voltage difference, an existence of a problem of bright and dark lines on the display panel is indicated, the data voltage waveform has a ramp-up, and a charging rate of a blue pixel or a green pixel is insufficient, in this case, the binding-point voltage, i.e., a charging voltage of the red pixel is boosted to reduce a charging loss during a ramp-up process, and to increase the charging rate, so that the bright and dark lines of the display panel can be improved, thereby improving the display effect.
    Type: Application
    Filed: June 20, 2023
    Publication date: March 14, 2024
    Applicant: HKC CORPORATION LIMITED
    Inventors: Long ZHU, Haijiang YUAN
  • Publication number: 20240087521
    Abstract: Disclosed are a drive current regulating circuit, a color deviation correction method, a display device and a storage medium. The color deviation correction method includes: determining that the switching tube is turned on in the current regulating module in response to that a resistor in the current input module is turned on, and regulating the input voltage in response to that the switching tube is turned on to obtain a drive voltage, and outputting the drive voltage to a source of the first transistor in the current output module, and compensating for a drive current of the light-emitting diode in the current output module output from the first transistor, to correct a color deviation of the light-emitting diode.
    Type: Application
    Filed: June 9, 2023
    Publication date: March 14, 2024
    Applicant: HKC CORPORATION LIMITED
    Inventors: Renjie ZHOU, Baohong KANG
  • Publication number: 20240087522
    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: Application
    Filed: June 21, 2023
    Publication date: March 14, 2024
    Applicant: HKC CORPORATION LIMITED
    Inventors: Renjie ZHOU, Baohong KANG
  • Patent number: 11927843
    Abstract: A backlight module and a display device are disclosed. The backlight module includes a back plate and a plurality of light plates arranged on the back plate, where a seam is formed between adjacent light plates. The backlight module further includes a framework assembly that fixed to the back plate and arranged surrounding the light plates. At least a part of the framework assembly is disposed in the seam. A material of the framework assembly includes a reflective material.
    Type: Grant
    Filed: December 8, 2022
    Date of Patent: March 12, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Xiaolan Tong, Haijiang Yuan
  • 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: 11923489
    Abstract: A growth substrate and the display panel include a substrate, including chip growth regions arranged at intervals and in an array and a non-growth region located among chip growth regions. The growth substrate includes a refraction structure disposed on the substrate. An orthographic projection of the refraction structure on the substrate covers the non-growth region without overlapping with at least parts of the chip growth regions. The refraction structure is configured to refract light corresponding to the non-growth region to positions corresponding to the chip growth regions. The substrate has a first surface and a second surface and light emitting chips are grown in the chip growth regions of the first surface. The refraction structure is disposed on the second surface, an orthographic projection on the substrate covers the non-growth region, and one side, away from the substrate, of the refraction structure is a light incident side.
    Type: Grant
    Filed: June 8, 2023
    Date of Patent: March 5, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Yang Pu, Baohong Kang
  • Patent number: 11920764
    Abstract: Disclosed are a display apparatus and an in-vehicle display device. The display apparatus includes at least two display modules. The display modules are arranged in sequence along a first direction and includes at least one user front-view display module and at least one user side-view display module. A difference between a luminous angle of each user side-view display module and a viewing angle of the user side-view display module is within a preset difference range. The viewing angle is formed by a second direction and a normal direction of a corresponding display module, the second direction being from a point on the corresponding display module toward the user position; the luminous angle is formed by an emission direction and a normal direction of the corresponding display module; for each user side-view display module, an angle formed by the second direction and the emission direction is within a preset angle range.
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: March 5, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Guofei Ji, Haijiang Yuan