Patents by Inventor Changjun Lu

Changjun Lu 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: 20240388046
    Abstract: The present disclosure provides a plug-in mechanism of an LED display device and the LED display device. The plug-in mechanism of the LED display device comprises a first plug-in assembly and a second plug-in assembly which are matched with each other, wherein the first plug-in assembly comprises a first seat body, a first power supply plug-in part, a first signal plug-in part, a first driving component, a second driving component and a function switching component; the first driving component is movably arranged on the first seat body and drives the first power supply plug-in part to move; the second driving component is movably arranged on the first seat body and drives the first signal plug-in part to move; the second plug-in assembly comprises a second seat body, a second power supply plug-in part, a second signal plug-in part and a pushing part; and when the function switching component is located at a first working position, the function switching component can drive the driving part to move.
    Type: Application
    Filed: December 29, 2023
    Publication date: November 21, 2024
    Inventors: Dingfang WANG, Changjun LU, Zhiyong LIU
  • Publication number: 20240387782
    Abstract: The disclosure provides an edge locking apparatus of a Light Emitting Diode (LED) display screen and the LED display screen. The edge locking apparatus of the LED display screen includes an edge locking structure. The edge locking structure includes a lock seat, a lock cylinder, a rotating piece, a first driving piece and a second driving piece. The lock cylinder is movably arranged in the lock seat, and the lock cylinder includes a cylinder body part, and a lock pin, a first rotating part, an avoiding part and a second rotating part which are sequentially arranged on the cylinder body part at intervals. The cylinder body part is provided with a retracting position enabling the lock pin to retract into the lock seat, an inserting position enabling the lock pin to extend out of the lock seat and a locking position enabling the lock pin to rotate by a preset angle relative to the inserting position.
    Type: Application
    Filed: December 29, 2023
    Publication date: November 21, 2024
    Inventors: Dingfang WANG, Changjun LU, Zhiyong LIU
  • Publication number: 20240215427
    Abstract: The disclosure provides a perovskite patterned film and a preparation method and application thereof. The preparation method comprises the following steps: coating a PbX2 precursor on a substrate, and annealing to obtain a PbX2 film substrate; coating AY salt on the nano stamp with the pattern, and annealing to obtain an AY film nano stamp; carrying out nanoimprinting to obtain an APb(X,Y)3 perovskite patterned film. According to the method, the perovskite pattern is accurately constructed on the PbX2 substrate in a mode of combining contact imprinting and ion diffusion, the PbX2/perovskite/PbX2 coplanar surface smooth thin film is obtained, the perovskite pattern serves as an active area, the rest PbX2 naturally serves as a wide-band-gap insulation/inert isolation material, the residual rate of the thin film is low, and the yield is greatly improved.
    Type: Application
    Filed: December 7, 2023
    Publication date: June 27, 2024
    Inventors: Xiaoyu YANG, Li MA, Changjun LU
  • Publication number: 20240128411
    Abstract: Disclosed are a target LED chip with a reflective layer and a manufacturing method. The method comprises providing a target substrate to a bottom of an initial LED chip, to obtain a first LED chip; depositing a first target liquid onto a top surface of the first LED chip to form a target protective layer, so as to obtain a second LED chip; etching the second LED chip from the target protective layer, to obtain a third LED chip; treating the third LED chip according to a first target method to form reflective layers, so as to obtain a fourth LED chip; and removing top reflective layers, second side wall reflective layers and first sub-protective layers of the plurality of second LED sub-units, to obtain the target LED chip comprising the plurality of target LED sub-units and the target substrate.
    Type: Application
    Filed: October 12, 2023
    Publication date: April 18, 2024
    Inventors: Xiaoyu YANG, Li MA, Changjun LU
  • Publication number: 20230216009
    Abstract: The disclosure provides an LED chip assembly, an LED display apparatus and a processing method of the LED chip assembly.
    Type: Application
    Filed: December 22, 2022
    Publication date: July 6, 2023
    Inventors: Changjun LU, Li MA
  • Publication number: 20230215347
    Abstract: Disclosed are an image display control method and apparatus, and an image display device. The method includes: a refresh rate of a display screen is acquired; display time of a target image on a predetermined time axis is adjusted according to the refresh rate, so as to obtain adjusted display time, wherein the predetermined time axis is a refresh cycle of each frame of the target image when the display screen is at a target refresh rate; and according to the adjusted display time, the display screen is controlled to display the target image. According to the present disclosure, the technical problem of visual crosstalk when a Light Emitting Diode (LED) display screen displays a dynamic image is solved.
    Type: Application
    Filed: December 27, 2022
    Publication date: July 6, 2023
    Inventors: Weilin LEI, Changjun LU
  • Patent number: 10437197
    Abstract: Three-Dimensional (3D) display device and method are disclosed. The device can include: a Light-Emitting Diode (LED) display, configured to display an image; a light path control structure including a multilayer pinhole type structure, configured to control emitting directions of light paths of the image to form 3D light field information, wherein multiple groups of pinhole arrays are arranged on each layer of the pinhole type structure; and a holographic function screen, configured to perform diffusion imaging on the 3D light field information to form a 3D image, wherein the LED display, the light path control structure and the holographic function screen are sequentially configured. The technical problems of the related art are solved.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: October 8, 2019
    Assignee: LEYARD OPTOELECTRONIC CO., LTD.
    Inventors: Changjun Lu, Zhihao Wang, Le Yang, Boyang Liu
  • Patent number: 10311777
    Abstract: Disclosed are a control system and method for data transmission, and a chip array and a display. The control system for data transmission comprises: a chip array, comprising a plurality of rows of chip assemblies, wherein any row of chip assembly includes at least two chip sets, all chips in each chip set are cascaded with each other; and a controller, configured to receive display data, and generate, according to the display data, a plurality of sets of display signals corresponding to the plurality of rows of chip assemblies, wherein any set of display signal is divided into at least two sub-display signals corresponding to the at least two chip sets, any sub-display signal accesses to a signal input end of a first chip in a corresponding chip set. The control system and method for data transmission, and a chip array and a display solve the technical problem in the related art that electromagnetic radiation increases when a data transmission range is enlarged.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: June 4, 2019
    Assignee: LEYARD OPTOELECTRONIC CO., LTD.
    Inventors: Dong'an Huang, Changjun Lu, Shuo Zhang
  • Publication number: 20180356767
    Abstract: Some embodiments of the disclosure disclose a Three-Dimensional (3D) display device and method, wherein the device can include: a Light-Emitting Diode (LED) display, configured to display an image; a light path control structure including a multilayer pinhole type structure, configured to control emitting directions of light paths of the image to form 3D light field information, wherein multiple groups of pinhole arrays are arranged on each layer of the pinhole type structure; and a holographic function screen, configured to perform diffusion imaging on the 3D light field information to form a 3D image, wherein the LED display, the light path control structure and the holographic function screen are sequentially configured. According to some embodiments of the disclosure, the technical problems of the related art are solved.
    Type: Application
    Filed: January 15, 2018
    Publication date: December 13, 2018
    Inventors: Changjun LU, Zhihao WANG, Le YANG, Boyang LIU
  • Publication number: 20180293934
    Abstract: Disclosed are a control system and method for data transmission, and a chip array and a display. The control system for data transmission comprises: a chip array, comprising a plurality of rows of chip assemblies, wherein any row of chip assembly includes at least two chip sets, all chips in each chip set are cascaded with each other; and a controller, configured to receive display data, and generate, according to the display data, a plurality of sets of display signals corresponding to the plurality of rows of chip assemblies, wherein any set of display signal is divided into at least two sub-display signals corresponding to the at least two chip sets, any sub-display signal accesses to a signal input end of a first chip in a corresponding chip set. The control system and method for data transmission, and a chip array and a display solve the technical problem in the related art that electromagnetic radiation increases when a data transmission range is enlarged.
    Type: Application
    Filed: February 26, 2016
    Publication date: October 11, 2018
    Inventors: Dong'an Huang, Changjun Lu, Shuo Zhang
  • Patent number: 9762814
    Abstract: A data processing method and device for a Light emitting diode (LED) Television (TV), and an LED TV are disclosed, the data processing device includes: a signal processing chip configured to perform mode conversion on a received TV signal so as to obtain a first video signal of a preset mode; and a video processing chip connected to the signal processing chip and configured to perform clock synchronization processing on the first video signal so as to obtain a second video signal and output the second video signal to an LED display. The problem in the prior art that an LED TV can only display a TV signal of a single mode is solved, thereby achieving the effect that the LED TV can display videos of various modes and various formats.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: September 12, 2017
    Assignee: LEYARD OPTOELECTRONIC CO., LTD.
    Inventors: Weilin Lei, Changjun Lu, Longhu Zhang, Zheng Sun
  • Patent number: 9733401
    Abstract: An LED display device includes an LED display panel (1); and an encasing, arranged on one side of the LED display panel (1). The encasing includes a plurality of diffuser units (10); each diffuser unit (10) is adhered to the LED display panel (1); and, a locating structure is arranged between the diffuser unit (10) and the LED display panel (1) so as to limit an adhesion position of the diffuser unit (10) on the LED display panel (1). The LED display device has a small splicing gap and a better display effect.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: August 15, 2017
    Assignee: LEYARD OPTOELECTRONIC CO., LTD.
    Inventors: Longhu Zhang, Changjun Lu, Tong Pan
  • Patent number: 9679515
    Abstract: A Light-Emitting Diode (LED) driving circuit and a control system includes: a driving control circuit and a constant current channel group circuit, wherein the driving control circuit includes: a logic control circuit and a clock delay circuit; the logic control circuit is connected with the constant current channel group circuit, and is configured to control the ordered switching-on or switching-off of the constant current channel group circuit by virtue of a data control signal; and the clock delay circuit is connected with the logic control circuit, configured to acquire a timing control signal synchronous with the data control signal and output the timing control signal and integrated in the LED driving circuit.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: June 13, 2017
    Assignee: LEYARD OPTOELECTRONICS CO., LTD.
    Inventors: Changjun Lu, Zhiyong Lui
  • Patent number: 9570036
    Abstract: A method and device for processing a video image are provided. The method comprises: receiving an original video image; adjusting a signal clock frequency of the original video image to acquire a processed video image; after a command signal input by a user is received, capturing the processed video image according to a preset size to acquire a video image corresponding to a display window of the preset size; and encoding the video image corresponding to the display window of the preset size to acquire an encoded video image.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: February 14, 2017
    Assignee: LEYARD OPTOELECTRONIC CO., LTD.
    Inventors: Weilin Lei, Changjun Lu
  • Publication number: 20170034450
    Abstract: The disclosure discloses a data processing method and device for a Light emitting diode (LED) Television (TV), and an LED TV, wherein the data processing device includes: a signal processing chip configured to perform mode conversion on a received TV signal so as to obtain a first video signal of a preset mode; and a video processing chip connected to the signal processing chip and configured to perform clock synchronization processing on the first video signal so as to obtain a second video signal and output the second video signal to an LED display. By means of the disclosure, the problem in the prior art that an LED TV can only display a TV signal of a single mode is solved, thereby achieving the effect that the LED TV can display videos of various modes and various formats.
    Type: Application
    Filed: April 23, 2014
    Publication date: February 2, 2017
    Inventors: Weilin LEI, Changjun LU, Longhu ZHANG, Zheng SUN
  • Publication number: 20170025376
    Abstract: A wafer circuit, including: a wafer (10), fixed on a substrate; an electrode (20), arranged on the wafer (10); a bonding pad (30), arranged on the substrate; and a plurality of bonding wires (40) with first ends all connected to the electrode (20) and second ends all connected to the bonding pad (30), wherein the plurality of bonding wires (40) are parallel bonding wires.
    Type: Application
    Filed: August 8, 2014
    Publication date: January 26, 2017
    Inventors: Changjun LU, Tong PAN, Jie YU
  • Publication number: 20160172340
    Abstract: A Light Emitting Diode (LED) display screen includes: an LED display screen substrate (200), an output end of the driving circuit includes: a first positive electrode (202) and a first negative electrode (204) and the first positive electrode (202) and the first negative electrode (204) are located on a first surface of the LED display screen substrate (200); an LED chip (210), located on the first surface, and the second surface is opposite to the first surface; a first jointing part (222) and a second jointing part (204). The LED display screen solves the technical problem in the related art that the minimum dot pitch of an LED display screen is excessively large due to a limited size of a support in a conventional encapsulated lamp bead.
    Type: Application
    Filed: July 14, 2014
    Publication date: June 16, 2016
    Applicant: LEYARD OPTOELECTRONIC CO., LTD.
    Inventors: Changjun LU, Jie YU, Zhiyong LIU, Tong PAN
  • Patent number: 9355589
    Abstract: A Light-Emitting Diode (LED) display includes: an LED display panel; and a display driving circuit, including a switching circuit and a control circuit, wherein the switching circuit comprises first and second switching sub-circuits; the first switching sub-circuit includes one or more field effect transistors; the second switching sub-circuit includes one or more field effect transistors; the control circuit includes a power supply control circuit connected with a third end of the switching circuit through a power supply control port. The switching circuit and the control circuit are integrated in the display driving circuit, and the two switching sub-circuits control the power supply of R/G/B LEDs in an LED particle array with M lines and N columns in the LED display panel respectively, so that the effects of small PCB area occupied by the control circuit, simple design, high refresh rate and low power consumption of the LED display are achieved.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: May 31, 2016
    Assignee: LEYARD OPTOELECTRONIC CO., LTD.
    Inventors: Changjun Lu, Zhiyong Liu
  • Publication number: 20150381975
    Abstract: The present invention provides a synchronous signal processing method and device for stereoscopic display of a spliced-screen body, and a spliced-screen body, wherein the spliced-screen body comprises a plurality of modular screens spliced with one another. The method comprises: selecting a first modular screen from a plurality of modular screens according to a preset rule; obtaining a synchronous signal for stereoscopic display through the first modular screen, wherein the synchronous signal is used for instructing the modular screens to perform synchronous display of video images; and transmitting the synchronous signal to the other modular screens through the first modular screen according to a preset rule.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 31, 2015
    Inventors: Weilin LEI, Changjun LU
  • Publication number: 20150355391
    Abstract: An LED display device includes an LED display panel (1); and an encasing, arranged on one side of the LED display panel (1). The encasing includes a plurality of diffuser units (10); each diffuser unit (10) is adhered to the LED display panel (1); and, a locating structure is arranged between the diffuser unit (10) and the LED display panel (1) so as to limit an adhesion position of the diffuser unit (10) on the LED display panel (1). The LED display device has a small splicing gap and a better display effect.
    Type: Application
    Filed: September 25, 2013
    Publication date: December 10, 2015
    Inventors: Longhu Zhang, Changjun Lu, Tong Pan