Patents Assigned to Chengdu Vistar Optoelectronics Co., Ltd.
  • 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
  • Publication number: 20210193634
    Abstract: An epitaxial base plate including a base plate body; a plurality of bosses arranged on the base plate body in an array; a plurality of contact electrodes correspondingly disposed on tops of the bosses; a planarization layer covering the bosses and a region of the base plate body without being covered by the bosses. The planarization layer defines a plurality of first through holes corresponding to the bosses to expose plurality of contact electrodes via the plurality of first through holes; and a plurality of pads arranged on the planarization layer in an array and electrically connected to the corresponding contact electrodes via the first through holes. An area of a vertical projection of the pad on the base plate body is greater than an area of a vertical projection of the contact electrode on the base plate body.
    Type: Application
    Filed: March 4, 2021
    Publication date: June 24, 2021
    Applicant: Chengdu Vistar Optoelectronics Co., Ltd.
    Inventors: Enqing GUO, Rubo XING, Xiuqi HUANG
  • Publication number: 20210142729
    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: Application
    Filed: January 19, 2021
    Publication date: May 13, 2021
    Applicant: Chengdu Vistar Optoelectronics Co., Ltd.
    Inventor: Cuili GAI
  • Publication number: 20210143305
    Abstract: An LED unit, an LED display and a manufacturing method. The LED unit could include a light emitting body and a weighing element. The weighing element could be arranged on the light emitting body, such that when the LED unit is in assembly fluid, the LED unit could move in a predefined posture and along a predefined direction driven by the weighing element. With the above-mentioned implementation, the present disclosure could facilitate the mass transfer of LED units and enhance production efficiency.
    Type: Application
    Filed: January 20, 2021
    Publication date: May 13, 2021
    Applicant: Chengdu Vistar Optoelectronics Co., Ltd.
    Inventors: Enqing GUO, Lei MI, Rubo XING, Xiuqi HUANG
  • Publication number: 20210134649
    Abstract: A transfer device of micro-elements and manufacturing method thereof are provided in the present disclosure. The transfer device of micro-elements may comprise a vacuum chamber, a plurality of movable mass blocks and a plurality of electrode assemblies. The vacuum chamber may define a vacuum space and a plurality of through holes. The plurality of through holes can communicate the vacuum space with outside. The plurality of through holes can be configured to suck the micro-elements. The plurality of movable mass blocks may be arranged in the vacuum chamber. Each movable mass block may be arranged corresponding to a through hole. The plurality of electrode assemblies may be fixed in the vacuum chamber. Each electrode assembly can be arranged corresponding to a through hole.
    Type: Application
    Filed: January 8, 2021
    Publication date: May 6, 2021
    Applicant: Chengdu Vistar Optoelectronics Co., Ltd.
    Inventors: Bo CHEN, Rubo XING, Enqing GUO, Dong WEI, Xiaowei LI, Bo CHEN
  • Publication number: 20210135042
    Abstract: The present application provides a method for transferring micro light emitting diodes and a transferring device. The device includes: a first substrate, having at least one surface arranged with a plurality of first adhesive region for a plurality of micro light emitting diodes to adhere thereon; and a transferring substrate, having at least one surface arranged with a plurality of second adhesive regions for at least a portion of the micro light emitting diodes to adhere on and being configured to transfer the at least a portion of the micro light emitting diodes to a driving back plate.
    Type: Application
    Filed: January 8, 2021
    Publication date: May 6, 2021
    Applicant: Chengdu Vistar Optoelectronics Co., Ltd.
    Inventors: Dong WEI, Xiaolong YANG, Rubo XING, Huashan CHEN