Patents by Inventor Yucheng CHAN

Yucheng CHAN 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).

  • Patent number: 10446410
    Abstract: Embodiments of the present invention provide a method of processing a surface of a polysilicon and a method of processing a surface of a substrate assembly. The method of processing a surface of a polysilicon includes forming a material film on the surface of the polysilicon; and processing, by using a chemico-mechanical polishing technology, the surface of the polysilicon on which the material film is formed. The material film is selected such that the polysilicon is preferentially removed in a polishing process.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: October 15, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaoyong Lu, Chunping Long, Chien Hung Liu, Yucheng Chan, Xiaolong Li, Zheng Liu
  • Patent number: 10429412
    Abstract: A test circuit, a test method, an array substrate and a manufacturing method thereof are provided. The test circuit includes a plurality of to-be-tested units and plurality of test electrodes connected to the to-be-tested units. The plurality of to-be-tested units are arranged in a matrix. At least one of the test electrodes is multiplexed by the plurality of to-be-tested units in a row direction and at least one of the test electrodes is multiplexed by the plurality of to-be-tested units in a column direction.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: October 1, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yucheng Chan, Dong Li, Bin Zhang
  • Publication number: 20190157454
    Abstract: Disclosed are a thin film transistor and a manufacture method thereof. The thin film transistor according to the embodiments of the present disclosure comprises: a base substrate; an active layer composed of polysilicon on the base substrate; and a first gate insulating layer having a preset intrinsic tensile stress on the active layer.
    Type: Application
    Filed: May 28, 2018
    Publication date: May 23, 2019
    Inventors: Dong Li, Yucheng Chan
  • Patent number: 10243004
    Abstract: Disclosed are a low-temperature polycrystalline silicon thin film transistor (LTPS TFT), a method for fabricating the same, an array substrate, a display panel, and a display device. The LTPS TFT includes an active layer, a source, a drain, a gate, and a gate insulating layer which are arranged on a substrate. The gate insulating layer is arranged between the active layer and the gate, and a graphene oxide layer which is arranged between the active layer and the gate insulating layer. Since the graphene oxide layer is arranged between the active layer and the gate insulating layer, the interface between the active layer and the gate insulating layer of polycrystalline (P-Si) has a reduced roughness and interfacial defect density, and a pre-cleaning process is not necessary for the gate insulating layer.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: March 26, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shuai Zhang, Yucheng Chan
  • Patent number: 10224252
    Abstract: A method for fabricating an array substrate, an array substrate, and a display device are disclosed. The method includes forming a whole layer of opaque film on a substrate; treating the film to form a transparent region and an opaque region in the film, wherein the opaque region corresponds with a channel region of an active layer; and forming a thin film transistor on the film which has been treated. In the method, prior to forming the thin film transistor, the whole layer of opaque film is formed to comprise the transparent region and the opaque region. When other films are deposited on the whole layer of film, no difference in height occurs, and this further avoids various defects due to difference in height.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: March 5, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Bin Zhang, Chienhung Liu, Yucheng Chan, Xuefei Sun, Zhanfeng Cao
  • Patent number: 10197877
    Abstract: An array substrate includes multiple pattern layers disposed in a display region and a test unit disposed in a non-display region, the test unit includes at least one of a test component and a test transistor. The test component includes a test block pattern and a test line pattern; the test block pattern is disposed in the same layer as one layer of the multiple pattern layers, the test line pattern is disposed in the same layer as one layer of the multiple pattern layers, and the test block pattern and the test line pattern are disposed in different layers; the orthographic projection of the test line pattern on the array substrate surrounds the periphery of the orthographic projection of the test block pattern on the array substrate; and the test block pattern or the test line pattern is connected to the test transistor.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: February 5, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yucheng Chan, Shuai Zhang
  • Publication number: 20180374762
    Abstract: A method for fabricating an array substrate, an array substrate, and a display device are disclosed. The method includes forming a whole layer of opaque film on a substrate; treating the film to form a transparent region and an opaque region in the film, wherein the opaque region corresponds with a channel region of an active layer; and forming a thin film transistor on the film which has been treated. In the method, prior to forming the thin film transistor, the whole layer of opaque film is formed to comprise the transparent region and the opaque region. When other films are deposited on the whole layer of film, no difference in height occurs, and this further avoids various defects due to difference in height.
    Type: Application
    Filed: June 14, 2017
    Publication date: December 27, 2018
    Inventors: Bin ZHANG, Chienhung LIU, Yucheng CHAN, Xuefei SUN, Zhanfeng CAO
  • Publication number: 20180284153
    Abstract: A test circuit, a test method, an array substrate and a manufacturing method thereof are provided. The test circuit includes a plurality of to-be-tested units and plurality of test electrodes connected to the to-be-tested units. The plurality of to-be-tested units are arranged in a matrix. At least one of the test electrodes is multiplexed by the plurality of to-be-tested units in a row direction and at least one of the test electrodes is multiplexed by the plurality of to-be-tested units in a column direction.
    Type: Application
    Filed: December 14, 2017
    Publication date: October 4, 2018
    Inventors: Yucheng Chan, Dong Li, Bin Zhang
  • Publication number: 20180212011
    Abstract: The present disclosure provides an array substrate, its manufacturing method, and a display apparatus. The array substrate includes a monocrystalline silicon layer and an array circuit layer. The array circuit layer is disposed over the monocrystalline silicon layer. The array circuit layer comprises a scan drive circuit, a data drive circuit, and a plurality of pixel circuits. The scan drive circuit and the data drive circuit are configured to respectively control a plurality of scan lines and a plurality of data lines to in turn drive a plurality of pixels. Each of the plurality of pixel circuits is configured to drive one of the plurality of pixels to emit light under control of at least one of the plurality of scan lines and at least one of the plurality of data lines; and the scan drive circuit, the data drive circuit, and the plurality of pixel circuits comprise a plurality of thin film transistors (TFTs), each having an active region disposed in the monocrystalline silicon layer.
    Type: Application
    Filed: October 13, 2016
    Publication date: July 26, 2018
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventors: Weilin LAI, Yucheng CHAN, Jianbang HUANG
  • Publication number: 20180107080
    Abstract: An array substrate, includes multiple pattern layers disposed in a display region and a test unit disposed in a non-display region, the test unit includes at least one of a test component and a test transistor. The test component includes a test block pattern and a test line pattern; the test block pattern is disposed in the same layer as one layer of the multiple pattern layers, the test line pattern is disposed in the same layer as one layer of the multiple pattern layers, and the test block pattern and the test line pattern are disposed in different layers; the orthographic projection of the test line pattern on the array substrate surrounds the periphery of the orthographic projection of the test block pattern on the array substrate; and the test block pattern or the test line pattern is connected to the test transistor.
    Type: Application
    Filed: September 9, 2016
    Publication date: April 19, 2018
    Applicant: Boe Technology Group Co., Ltd.
    Inventors: Yucheng Chan, Shuai Zhang
  • Patent number: 9893131
    Abstract: The present application discloses an array substrate having a plurality of semiconductor elements and a plurality of test electrodes. Each of the plurality of semiconductor elements comprises a plurality of terminals, each of which is electrically connected to a different test electrode. At least one of the plurality of test electrodes is electrically connected to at least two different semiconductor elements.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: February 13, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yucheng Chan, Shuai Zhang
  • Patent number: 9893165
    Abstract: Embodiments of the present invention disclose a manufacturing method for an array substrate and corresponding manufacturing device, which belong to the technical field of metal oxide semiconductor.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: February 13, 2018
    Assignee: Boe Technology Group Co., Ltd.
    Inventors: Jianbang Huang, Yucheng Chan, Chienhung Liu
  • Publication number: 20170365623
    Abstract: Disclosed are a low-temperature polycrystalline silicon thin film transistor (LTPS TFT), a method for fabricating the same, an array substrate, a display panel, and a display device. The LTPS TFT includes an active layer, a source, a drain, a gate, and a gate insulating layer which are arranged on a substrate. The gate insulating layer is arranged between the active layer and the gate, and a graphene oxide layer which is arranged between the active layer and the gate insulating layer. Since the graphene oxide layer is arranged between the active layer and the gate insulating layer, the interface between the active layer and the gate insulating layer of polycrystalline (P-Si) has a reduced roughness and interfacial defect density, and a pre-cleaning process is not necessary for the gate insulating layer.
    Type: Application
    Filed: November 1, 2016
    Publication date: December 21, 2017
    Inventors: Shuai ZHANG, Yucheng CHAN
  • Patent number: 9847357
    Abstract: The present invention belongs to the field of display technology and provides a thin film transistor and a manufacturing method thereof, an array substrate and a display device. The thin film transistor comprises a gate, a source, a drain and a plurality of insulating layers, wherein at least one insulating layer comprises a Group VB metal oxide. Since the insulting layer is formed by using the Group VB metal oxide which has high dielectric constant, the thickness of the insulating layer can be reduced and the thin film transistor can be miniaturized.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: December 19, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yucheng Chan, Chienhung Liu
  • Publication number: 20170301741
    Abstract: The present application discloses an array substrate having a plurality of semiconductor elements and a plurality of test electrodes. Each of the plurality of semiconductor elements comprises a plurality of terminals, each of which is electrically connected to a different test electrode. At least one of the plurality of test electrodes is electrically connected to at least two different semiconductor elements.
    Type: Application
    Filed: October 13, 2016
    Publication date: October 19, 2017
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yucheng Chan, Shuai Zhang
  • Publication number: 20170271171
    Abstract: Embodiments of the present invention provide a method of processing a surface of a polysilicon and a method of processing a surface of a substrate assembly. The method of processing a surface of a polysilicon includes forming a material film on the surface of the polysilicon; and processing, by using a chemico-mechanical polishing technology, the surface of the polysilicon on which the material film is formed. The material film is selected such that the polysilicon is preferentially removed in a polishing process.
    Type: Application
    Filed: March 7, 2016
    Publication date: September 21, 2017
    Inventors: Xiaoyong Lu, Chunping Long, Chien Hung Liu, Yucheng Chan, Xiaolong Li, Zheng Liu
  • Publication number: 20170236705
    Abstract: The present application provides a low temperature poly-silicon thin film, a low temperature poly-silicon thin film transistor and manufacturing methods thereof, and a display device. The manufacturing method of a low temperature poly-silicon thin film comprises steps of: forming an amorphous silicon thin film on a base; and performing a laser annealing process on the amorphous silicon thin film by using a mask plate to form a low temperature poly-silicon thin film, wherein the mask plate includes a transmissive region and a shielding region surrounding the transmissive region, and two sides of the shielding region adjacent to the transmissive region are in concave-convex shapes. Performance of the low temperature poly-silicon thin film formed by the manufacturing method of a low temperature poly-silicon thin film in the present application is enhanced.
    Type: Application
    Filed: January 22, 2016
    Publication date: August 17, 2017
    Inventors: Dong LI, Xiaoyong LU, Xiaolong LI, Zheng LIU, Shuai ZHANG, Yucheng CHAN, Chienhung LIU, Chunping LONG
  • Publication number: 20170125546
    Abstract: Embodiments of the present invention disclose a manufacturing method for an array substrate and corresponding manufacturing device, which belong to the technical field of metal oxide semiconductor.
    Type: Application
    Filed: August 24, 2015
    Publication date: May 4, 2017
    Applicant: Boe Technology Group Co., Ltd.
    Inventors: Jianbang Huang, Yucheng Chan, Chienhung Liu
  • Publication number: 20160365360
    Abstract: The present disclosure discloses a smoothing device, a smoothing method, a thin film transistor, a display substrate and a display device. The smoothing device comprises a cavity, a plasma generating component, a magnetic field generating component, an electric field generating component and a carrier located within the cavity. The plasmas generated by the plasma generating component are subjected to the Lorentz force parallel to the surface of the object to be smoothed under the effect of the magnetic field generated by the magnetic field generating component, and subjected to an electric field force in the direction perpendicular to the surface of the object to be smoothed and pointing to the object to be smoothed under the effect of the electric field generated by the electric field generating component.
    Type: Application
    Filed: April 11, 2016
    Publication date: December 15, 2016
    Inventors: Xiaolong LI, Huijuan ZHANG, Xiaoyong LU, Zheng LIU, Yucheng CHAN, Chunping LONG
  • Publication number: 20160329356
    Abstract: The present invention belongs to the field of display technology and provides a thin film transistor and a manufacturing method thereof, an array substrate and a display device. The thin film transistor comprises a gate, a source, a drain and a plurality of insulating layers, wherein at least one insulating layer comprises a Group VB metal oxide. Since the insulting layer is formed by using the Group VB metal oxide which has high dielectric constant, the thickness of the insulating layer can be reduced and the thin film transistor can be miniaturized.
    Type: Application
    Filed: March 30, 2016
    Publication date: November 10, 2016
    Inventors: Yucheng CHAN, Chienhung LIU