Patents Assigned to Chengdu Vistar Optoelectronics Co., Ltd.
  • Patent number: 11908385
    Abstract: A driving method includes row scanning circuit configured to output scanning signals to sub-pixels in the display panel for plurality of times within one frame and output the scanning signals to the sub-pixels in the display panel in plurality of sub-frames each time; a data processor is configured to receive a display data stream including the display data corresponding to the sub-pixels in the plurality of sub-frames, split the display data stream according to analog-bit display data and digital-bit display data, and output the split display data stream to a column scanning circuit; and the column scanning circuit is configured to generate corresponding data signals of bright-state analog data voltages according to the analog-bit display data and transmit corresponding data signals of dark-state digital data voltages or the corresponding data signals of bright-state analog data voltages to corresponding sub-pixels in the display panel according to the digital-bit display data.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: February 20, 2024
    Assignee: Chengdu Vistar Optoelectronics Co., Ltd.
    Inventor: Donghao Zhang
  • Patent number: 11804575
    Abstract: A manufacturing method of a display panel, a display panel, and a display apparatus. The manufacturing method includes: forming a plurality of backlight units on a process substrate; filling a partition between adjacent backlight units, where a height of the partition relative to the process substrate is greater than a height of the adjacent backlight units relative to the process substrate; preparing a filter layer on a surface of each of the plurality of backlight units away from the process substrate; stripping the backlight units with the filter layer on surfaces of the backlight units from the process substrate, and transferring to a target substrate; and packaging the target substrate.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: October 31, 2023
    Assignee: CHENGDU VISTAR OPTOELECTRONICS CO., LTD.
    Inventors: Yuchun Liu, Chih Yi Hung, Xianrui Qian, Yu Dou, Huimin Li, Chenggong Wang
  • Publication number: 20230197735
    Abstract: A driving back plate, a display panel, and a preparation method therefor. The driving back plate includes a plurality of pixel driving units. At least one of the pixel driving units includes a main electrode pair and at least one redundant electrode pair. A second electrode of the main electrode pair, a first electrode of the main electrode pair, a first electrode of a redundant electrode pair, and a second electrode of the redundant electrode pair are arranged sequentially in a first direction. At least one of the pixel driving units includes a connection line. The connection line includes a cutting portion. A signal on the connection line is configured to be input between the redundant electrode pair and the cutting portion.
    Type: Application
    Filed: February 16, 2023
    Publication date: June 22, 2023
    Applicant: CHENGDU VISTAR OPTOELECTRONICS CO., LTD.
    Inventors: Yan WANG, Fei HUANG, Jiye XIA, Cuicui SHENG, Xianrui QIAN, Chenggong WANG
  • Patent number: 11495712
    Abstract: The present application provides a light emitting device, a method for making the same and a display apparatus. The light emitting device includes: a driving backplane; at least one set of driving electrodes disposed on the driving backplane, each set of driving electrodes including a first driving electrode and a second driving electrode; an epitaxial layer located on a side of the at least one set of driving electrodes away from the driving backplane; and at least one set of metal electrodes located on a side of the epitaxial layer close to the driving backplane, each set of metal electrodes including a first metal electrode and a second metal electrode, the first metal electrode and the second metal electrode being respectively connected to a first driving electrode and a second driving electrode, and a filling material being disposed between the first metal electrode and the second metal electrode.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: November 8, 2022
    Assignee: Chengdu Vistar Optoelectronics Co., Ltd.
    Inventors: Dong Wei, Xiaolong Yang, Rubo Xing, Xiaowei Li, Enqing Guo, Xuna Li
  • Patent number: 11430932
    Abstract: The present disclosure relates to a driving backplane, a micro-LED display panel and a micro-LED display device. The driving backplane, includes a plurality of pixel units arranged in an array, each of the pixel units comprising: an anode lead; a cathode lead at a side of the anode lead; and at least two pairs of electrodes, each pair of electrodes of the at least two pairs of electrodes including an anode and a cathode oppositely disposed, the anode being electrically connected to the anode lead, and the cathode being electrically connected to the cathode lead. In the course of using the foregoing driving backplane of the micro-LED display panel, it is only necessary to solder an LED chip on one pair of electrodes of the at least two pairs of electrodes.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: August 30, 2022
    Assignee: CHENGDU VISTAR OPTOELECTRONICS CO., LTD.
    Inventors: Rubo Xing, Dong Wei, Xiaolong Yang, Qi Shan
  • Publication number: 20220270543
    Abstract: A driving method includes row scanning circuit configured to output scanning signals to sub-pixels in the display panel for plurality of times within one frame and output the scanning signals to the sub-pixels in the display panel in plurality of sub-frames each time; a data processor is configured to receive a display data stream including the display data corresponding to the sub-pixels in the plurality of sub-frames, split the display data stream according to analog-bit display data and digital-bit display data, and output the split display data stream to a column scanning circuit; and the column scanning circuit is configured to generate corresponding data signals of bright-state analog data voltages according to the analog-bit display data and transmit corresponding data signals of dark-state digital data voltages or the corresponding data signals of bright-state analog data voltages to corresponding sub-pixels in the display panel according to the digital-bit display data.
    Type: Application
    Filed: February 10, 2022
    Publication date: August 25, 2022
    Applicant: Chengdu Vistar Optoelectronics Co., Ltd.
    Inventor: Donghao ZHANG
  • Patent number: 11289547
    Abstract: The present application discloses a display panel. The display panel comprises a substrate and a plurality of pixel units disposed on the substrate, each of the plurality of pixel units comprises a plurality of sub-pixel units, each of the plurality of sub-pixel units comprises a light emitting layer, the plurality of sub-pixel units comprise at least one first type of sub-pixel unit, and the at least one first type of sub-pixel unit further comprises a first light processing layer, the first light processing layer comprises a light conversion layer and a light diffusion layer arranged as a laminated structure, and the first light processing layer is positioned at a side where a light emitting surface of the light emitting layer of the at least one first type of sub-pixel unit is located.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: March 29, 2022
    Assignee: CHENGDU VISTAR OPTOELECTRONICS CO., LTD.
    Inventors: Huashan Chen, Xiaolong Yang, Rubo Xing, Dong Wei, Jiantai Wang
  • Patent number: 11282436
    Abstract: A pixel circuit includes a storage device directly connected to a control line so that a light-emitting device may emit light under a control of a control signal from the control line. The pixel circuit further includes: a first transistor; a second transistor; and a third transistor. A control terminal of the first transistor is connected to a first scan line, a second terminal of the first transistor is connected to an output node, and a first terminal of the storage device is connected to the output node. A control terminal of the second transistor is connected to the output node. A control terminal of the third transistor is connected to a second scan line, a second terminal of the third transistor is connected to an anode of the light-emitting device, and a cathode of the light-emitting device is grounded.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: March 22, 2022
    Assignee: Chengdu Vistar Optoelectronics Co., Ltd.
    Inventor: Cuili Gai
  • Patent number: 11251345
    Abstract: The present disclosure provides a light conversion substrate and a manufacturing method thereof, and a display panel. The light conversion substrate may include a substrate having a first surface and a second surface arranged opposite to each other. A plurality of first grooves may be defined on the first surface of the substrate. A plurality of second grooves may be defined on the second surface of the substrate. The plurality of first grooves and the plurality of second grooves are arranged alternately. A first light conversion body may be arranged in each of the plurality of first grooves. A second light conversion body ma be arranged in each of the plurality of second grooves. In the present disclosure, light conversion materials may not interfere with each other during the manufacturing method, so that the present disclosure may be suitable for a display panel with high pixel density.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: February 15, 2022
    Assignee: CHENGDU VISTAR OPTOELECTRONICS CO., LTD.
    Inventors: Dong Wei, Xiaolong Yang, Jiantai Wang, Huashan Chen, Rubo Xing
  • Patent number: 11222594
    Abstract: A digital pixel driving circuit and a digital pixel driving method. The digital pixel driving circuit includes a pixel driving module, a display module, a storage module and a short-circuiting module. An output terminal of the pixel driving module is electrically connected to an input terminal of the display module, and a control terminal of the pixel driving module is electrically connected to any output terminal of the storage module. An input terminal of the short-circuiting module is electrically connected to the input terminal of the display module, an output terminal of the short-circuiting module is electrically connected to an output terminal of the display module, and a control terminal of the short-circuiting module is electrically connected to any output terminal of the storage module.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: January 11, 2022
    Assignee: CHENGDU VISTAR OPTOELECTRONICS CO., LTD.
    Inventor: Cuili Gai
  • Publication number: 20210359154
    Abstract: The bonding method of a micro-light emitting diode chip includes providing a backplane, and two solder columns are formed on electrodes of each chip bonding area of the backplane; forming a glue groove in the chip bonding area, forming a glue layer in the glue groove to make the glue layer cover tops of the solder columns; moving the chip to make positive and negative electrodes of the chip aligned with the two solder columns respectively; heating the backplane to make the glue layer melt into liquid glue; making positive and negative electrodes of the chip immersed in the liquid glue; after cooling to a room temperature, making the positive electrode and the negative electrode of the chip adhered to the two solder columns respectively; removing a transfer head; soldering the positive electrode and the solder column adhered together, and the negative electrode and the solder column adhered together.
    Type: Application
    Filed: July 29, 2021
    Publication date: November 18, 2021
    Applicant: Chengdu Vistar Optoelectronics Co., Ltd.
    Inventor: Xiaobiao DONG
  • Publication number: 20210341653
    Abstract: A color conversion component and a display device. The color conversion component includes a light conversion layer including a black matrix, color conversion layers and concave-convex structure layers; the black matrix has a plurality of through holes arranged in an array; the color conversion layers are located within at least a portion of the through holes and capable of emitting a light in a wavelength range different than that of an incident light; and the concave-convex structure layers are arranged at least correspondingly in each of the through holes accommodating the color conversion layers, and each concave-convex structure layer is located on a light incident side of the light conversion layer and has a concave-convex structure surface facing towards the respective color conversion layer.
    Type: Application
    Filed: July 14, 2021
    Publication date: November 4, 2021
    Applicant: Chengdu Vistar Optoelectronics Co., Ltd.
    Inventors: Tao WANG, Yang GU, Bo JIANG, Jingjing LI, Chenggong WANG
  • Patent number: 11139416
    Abstract: A method for manufacturing an LED display device and an LED display device are provided. The method includes following operations. An LED array substrate and a conversion plate are provided. The LED array substrate includes a driving layer, a plurality of LED chips arranged in an array on a side of the LED array substrate having the driving layer. The conversion plate includes a substrate and a plurality of light conversion blocks, the plurality of light conversion blocks are spaced apart from each other and arranged on the substrate. A side of the conversion plate having the light conversion blocks is adhered with a side of the LED array substrate having the LED chips correspondingly, such that the light conversion blocks are arranged on corresponded top surfaces of the LED chips. The substrate is removed.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: October 5, 2021
    Assignee: CHENGDU VISTAR OPTOELECTRONICS CO., LTD.
    Inventors: Dong Wei, Xiaolong Yang, Jiantai Wang, Huashan Chen
  • Publication number: 20210273024
    Abstract: A color conversion assembly, a display panel and a manufacturing method for the color conversion assembly. The color conversion assembly includes: a color conversion layer comprising isolation structures, a plurality of accommodating spaces enclosed by the isolation structures, openings in communication with the respective accommodating spaces, and light conversion units arranged in at least some of the accommodating spaces; and a Bragg filter layer comprising curved filters corresponding to the light conversion units. The curved filters are bent in a direction away from the light conversion units.
    Type: Application
    Filed: May 18, 2021
    Publication date: September 2, 2021
    Applicant: Chengdu Vistar Optoelectronics Co., Ltd.
    Inventor: Yan WANG
  • Patent number: 11107949
    Abstract: A light emitting diode (LED) display device includes a plurality of pixel units. Each of the plurality of pixel units includes a red subpixel, a green subpixel, and a blue subpixel. The red subpixel is arranged with a first LED chip, the green subpixel is arranged with a second LED chip, and the blue subpixel is arranged with a third LED chip. The first LED chip is a blue LED chip or a green LED chip. The second LED chip is the green LED chip. The third LED chip is the blue LED chip. The red subpixel is further arranged with a red light conversion block arranged on the first LED chip.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: August 31, 2021
    Assignee: CHENGDU VISTAR OPTOELECTRONICS CO., LTD.
    Inventors: Dong Wei, Xiaolong Yang, Jiantai Wang, Huashan Chen, Rubo Xing
  • Publication number: 20210265535
    Abstract: A manufacturing method of a display panel, a display panel, and a display apparatus. The manufacturing method includes: forming a plurality of backlight units on a process substrate; filling a partition between adjacent backlight units, where a height of the partition relative to the process substrate is greater than a height of the adjacent backlight units relative to the process substrate; preparing a filter layer on a surface of each of the plurality of backlight units away from the process substrate; stripping the backlight units with the filter layer on surfaces of the backlight units from the process substrate, and transferring to a target substrate; and packaging the target substrate.
    Type: Application
    Filed: May 12, 2021
    Publication date: August 26, 2021
    Applicant: Chengdu Vistar Optoelectronics Co., Ltd.
    Inventors: Yuchun LIU, Chih Yi HUNG, Xianrui QIAN, Yu DOU, Huimin LI, Chenggong WANG
  • Patent number: 11081621
    Abstract: The present disclosure provides a display panel including a substrate; and a plurality of pixel units arranged on the substrate; wherein each of the plurality of pixel units includes a plurality of sub-pixel units including at least one first type of sub-pixel unit; each of the plurality of sub-pixel units includes a light emitting layer; the at least one first type of sub-pixel unit includes a first light processing layer; the first light processing layer includes at least a light diffusion material and a light conversion material mixed with each other; and the first light processing layer is located on a side of a light emitting surface of the light emitting layer at the at least one first type of sub-pixel unit. By the above-mentioned manner, the uniformity of light conversion by the light emitting layer may be improved, thereby the display effect of the display panel may be improved.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: August 3, 2021
    Assignee: CHENGDU VISTAR OPTOELECTRONICS CO., LTD.
    Inventors: Huashan Chen, Xiaolong Yang, Rubo Xing, Dong Wei, Jiantai Wang
  • Patent number: 11081632
    Abstract: The present disclosure relates to micro-LED chips, methods for manufacturing the same, and display devices. The micro-LED chip includes: a driving backplane including at least one first electrode, a groove being provided above the first electrode, and the first electrode being located at a bottom of the groove; the groove being filled with a conductive material, and the conductive material being obtained by curing a corresponding conductive ink; and a light emitting chip including at least one second electrode; and the first electrode is connected to the second electrode through the conductive material.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: August 3, 2021
    Assignee: CHENGDU VISTAR OPTOELECTRONICS CO., LTD.
    Inventors: Feng Zhai, Huimin Liu, Tao Wang
  • Publication number: 20210225258
    Abstract: A pixel circuit includes: a first transistor, a second transistor, a third transistor, a storage device and a light-emitting device. A control terminal of the first transistor is connected to a first scan line, a first terminal of the first transistor is connected to a data line, and a second terminal of the first transistor is connected to an output node A. A first terminal of the storage device is connected to the output node. A control terminal of the second transistor is connected to the output node. A control terminal of the third transistor is connected to a second scan line, a second terminal of the third transistor is connected to an anode of the light-emitting device, and a cathode of the light-emitting device is grounded.
    Type: Application
    Filed: April 5, 2021
    Publication date: July 22, 2021
    Applicant: Chengdu Vistar Optoelectronics Co., Ltd.
    Inventor: Cuili GAI
  • Publication number: 20210217928
    Abstract: The present application provides a light emitting device, a method for making the same and a display apparatus. The light emitting device includes: a driving backplane; at least one set of driving electrodes disposed on the driving backplane, each set of driving electrodes including a first driving electrode and a second driving electrode; an epitaxial layer located on a side of the at least one set of driving electrodes away from the driving backplane; and at least one set of metal electrodes located on a side of the epitaxial layer close to the driving backplane, each set of metal electrodes including a first metal electrode and a second metal electrode, the first metal electrode and the second metal electrode being respectively connected to a first driving electrode and a second driving electrode, and a filling material being disposed between the first metal electrode and the second metal electrode.
    Type: Application
    Filed: March 30, 2021
    Publication date: July 15, 2021
    Applicant: Chengdu Vistar Optoelectronics Co., Ltd.
    Inventors: Dong WEI, Xiaolong YANG, Rubo XING, Xiaowei LI, Enqing GUO, Xuna LI