Patents by Inventor Huifeng Wang

Huifeng Wang 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: 20190229152
    Abstract: An organic light-emitting diode display panel and a manufacturing method therefor, and a display apparatus are provided. The orange light-emitting diode display panel comprises: a base substrate; an anode and an auxiliary electrode arranged on the base substrate, wherein the anode and the auxiliary electrode are insulated from each other, a pixel definition layer arranged on the anode and the auxiliary electrode, wherein the pixel definition layer has a pixel opening region exposing the anode and a via exposing the auxiliary electrode; and the luminescent layer and a cathode sequentially arranged on the pixel definition layer, wherein the cathode is electrically connected to the auxiliary electrode arranged in the via.
    Type: Application
    Filed: January 31, 2018
    Publication date: July 25, 2019
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Huifeng WANG
  • Publication number: 20190181195
    Abstract: The present disclosure relates to a pixel isolation bank and a method of manufacturing the same. A pixel isolation bank, comprising a first lyophobic layer located at a predetermined height of the pixel isolation bank.
    Type: Application
    Filed: May 30, 2018
    Publication date: June 13, 2019
    Inventors: Huifeng WANG, Jing GAN
  • Publication number: 20190148468
    Abstract: A pixel defining layer and a production method thereof, a display panel and a production method thereof, and a display apparatus are all provided. The pixel defining layer has a first lyophilic layer, a first lyophobic layer on the first lyophilic layer, a second lyophilic layer on the first lyophobic layer, and a second lyophobic layer on the second lyophilic layer.
    Type: Application
    Filed: May 23, 2018
    Publication date: May 16, 2019
    Inventors: Wenbin Jia, HuiFeng Wang, Xiang Wan, Changjun Jiang, Li Sun
  • Patent number: 10276796
    Abstract: Disclosed is an ejection volume compensation method of an inkjet printer for manufacturing an organic electroluminescent device pixel. The inkjet printer includes a plurality of nozzles and is configured to perform a plurality of print processes for the same pixel location. A target ejection volume for the next print process is selected so that an average of the target ejection volume and an actual ejection volume for the previous print process is equal to an ideal ejection volume. Also disclosed are an ejection volume compensation device for use with the inkjet printer, an inkjet printing device, and a non-transitory machine readable medium.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: April 30, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Huifeng Wang
  • Publication number: 20190123116
    Abstract: A substrate, a method of preparing the substrate and a display device are provided. The substrate includes: a base substrate; a pixel defining layer on the base substrate, the pixel defining layer defining a plurality of opening regions arranged in an array, each of the plurality of opening regions having a plurality of sidewalls; and a barrier structure attached to at least one sidewall of at least one opening region. A distance from an upper surface of the barrier structure to the base substrate is less than a distance from an upper surface of the pixel defining layer to the base substrate, and at least a part of surfaces of the barrier structure are lyophobic.
    Type: Application
    Filed: May 9, 2018
    Publication date: April 25, 2019
    Inventors: Huifeng Wang, Jing Gan
  • Publication number: 20190103452
    Abstract: A method of fabricating a substrate includes forming a planarization layer, and forming the planarization layer includes: forming a first planarization sub-layer on a base substrate on which a patterned film layer has been formed. A surface of the first planarization sub-layer facing away from the base substrate has a plurality of depressed portions. Forming the planarization layer further includes: forming a second planarization sub-layer at multiple depressed portions of the plurality of the depressed portions to obtain the planarization layer including the first planarization sub-layer and the second planarization sub-layer. A flatness of a surface of the planarization layer is higher than a flatness of the surface of the first planarization sub-layer.
    Type: Application
    Filed: October 1, 2018
    Publication date: April 4, 2019
    Inventors: Wenbin JIA, Huifeng WANG, Chinlung LIAO, Feifei ZHU, Xiang WAN
  • Publication number: 20190074330
    Abstract: This disclosure provides a display substrate, a display panel, and a method for fabricating the display substrate. The display substrate includes: an underlying substrate; a plurality of sub-pixel areas arranged in an array on a surface of the underlying substrate; and an isolating layer arranged on the surface of the underlying substrate, wherein the isolating layer includes a surrounding dam arranged on a periphery of the plurality of sub-pixel areas, and a plurality of separating dams arranged in parallel on an inner side of the surrounding dam, end portions of the separating dams are spaced from the surrounding dam, and the plurality of sub-pixel areas are separated by the separating dams into a plurality of channels.
    Type: Application
    Filed: September 20, 2017
    Publication date: March 7, 2019
    Inventor: Huifeng WANG
  • Publication number: 20180333344
    Abstract: A composition for treating a keratin material, comprising at least one amino acid surfactant, at least one amphoteric or zwitterionic surfactant, at least one solid fatty acid, at least one starch phosphates, and at least one acrylic thickening polymer. The composition has an improved rinsing speed after application, and is stable over 2 months, with an improved foaming properties, such as density of foam, and foaming volume.
    Type: Application
    Filed: December 10, 2015
    Publication date: November 22, 2018
    Applicant: L'OREAL
    Inventors: Huifeng WANG, Yuchao CHEN
  • Patent number: 10121597
    Abstract: The present invention relates to a tantalum wire for anode lead of tantalum capacitors, characterized in that the cross section of the tantalum wire is approximate rectangular or regular rectangular. The present invention also relates to a process for manufacturing the tantalum wire, comprising the steps of: providing feedstock tantalum wire; subjecting the feedstock tantalum wire to heat treatment; subjecting the heat treated tantalum wire to surface pretreatment to form an oxide membrane on the surface-pretreated tantalum wire; rolling the surface-pretreated tantalum wire by lubricating with lubricant oil to make the cross section of the rolled tantalum wire being approximate rectangular or regular rectangular; subjecting the tantalum wire to final annealing.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: November 6, 2018
    Assignee: NINGXIA ORIENT TANTALUM INDUSTRY CO., LTD.
    Inventors: Bing Zhao, Linghui Du, Yongxu Xie, Qingfeng Wan, Huifeng Wang, Guohua Qiu
  • Patent number: 10115775
    Abstract: An OLED display device and manufacturing method thereof are provided. The method comprises: forming an array comprising first electrodes on a base substrate, with an area to which the first electrodes correspond being a display area; forming pixel defining layers respectively between the first electrodes so that a width of a cross section of each pixel defining layer is relatively larger at a middle portion and reduced gradually towards an upper portion and a lower portion; forming organic light-emitting layers respectively on the first electrodes between the pixel defining layers; and at least forming a second electrode which is at least provided on the organic light-emitting layers. The OLED display device made in this method can minimize the coffee ring effect of the organic light-emitting layers, avoid the layer-broken phenomenon occurring to the second electrode, and thus improve the display quality and save the material for the second electrode.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: October 30, 2018
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Huifeng Wang
  • Publication number: 20180233667
    Abstract: Disclosed is an ejection volume compensation method of an inkjet printer for manufacturing an organic electroluminescent device pixel. The inkjet printer includes a plurality of nozzles and is configured to perform a plurality of print processes for the same pixel location. A target ejection volume for the next print process is selected so that an average of the target ejection volume and an actual ejection volume for the previous print process is equal to an ideal ejection volume. Also disclosed are an ejection volume compensation device for use with the inkjet printer, an inkjet printing device, and a non-transitory machine readable medium.
    Type: Application
    Filed: June 16, 2017
    Publication date: August 16, 2018
    Inventor: Huifeng WANG
  • Patent number: 10050092
    Abstract: An array substrate, a manufacturing method thereof and a display device are disclosed. The array substrate includes a substrate (10) and first thin-film transistors (TFTs) (21) and first electrodes (40) formed on the substrate (10). The first TFT (21) includes a gate electrode (200), an active layer (202), a source electrode (205) and a drain electrode (204). The first electrode (40) is electrically connected with the drain electrode (204) of the first TFT (21), at least covers an area of the active layer (202) of the first TFT, not overlapped with the source electrode (205) and the drain electrode (204), and can absorb ultraviolet (UV) light. The array substrate can solve the problem of reducing the display performance of the display device as the performances degrade and even fail due to UV irradiation of the TFTs.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: August 14, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiangbo Chen, Can Wang, Huifeng Wang, Wenfeng Song
  • Patent number: 9972665
    Abstract: An organic light emitting diode display panel and a fabrication method thereof, a display device are provided, and the method includes: forming an anode layer (41) a light-emitting layer and a cathode layer on a substrate (40) and the method further includes: depositing a first pixel defining layer thin film (51) on the anode layer (41); depositing a second pixel defining layer thin film on the first pixel defining layer thin film (51), and forming a second pixel defining layer (61) by patterning the second pixel defining layer thin film through patterning process; and forming a first pixel defining layer (71) through dry etching and removing the first pixel defining layer thin film that is exposed; wherein the first pixel defining layer (71) has a lyophilic property and the second pixel defining layer (61) has a lyophobic property. A double-layer pixel defining layer prepared in the method is capable of reducing a mask plate, reducing the production cost, and improving the production efficiency.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: May 15, 2018
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Huifeng Wang, Ze Liu
  • Publication number: 20180116941
    Abstract: Disclosed is a composition for cleansing a keratin material, comprising, in an aqueous phase: a) at least one amino acid surfactant; b) calcium alginate, wherein the weight ration (a/b) of a) amino acid surfactant and b) calcium alginate is from 0.7 to 6.
    Type: Application
    Filed: July 22, 2015
    Publication date: May 3, 2018
    Applicant: L'OREAL
    Inventor: Huifeng WANG
  • Patent number: 9935287
    Abstract: Disclosed is an array substrate and a method for manufacturing the same and a display device. The array substrate comprises: a substrate; a first electrode layer formed on the substrate; a pixel defining layer formed on the first electrode layer and having an opening for exposing the first electrode layer; and an organic material functional layer formed on a region of the first electrode layer corresponding to the opening. The first electrode layer comprises: a first region located at a central portion of the first electrode layer; a second region located between a periphery of the first region and an inner side of the pixel defining layer, the second region being formed as a first arc structure protruding toward the substrate; and a third region located outside the second region and covered by the pixel defining layer. The thicknesses, at positions of respective films of the organic material functional layer in the display device, are uniform.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: April 3, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chunjing Hu, Huifeng Wang
  • Patent number: 9793508
    Abstract: Disclosed are an OLED display panel and an OLED display device. The OLED display panel includes an array substrate (21) which is covered by a cathode (211) and a color filter substrate (22) on which an auxiliary electrode (221) is formed. A contact structure is disposed between the color filter substrate (22) and the array substrate (21) to electrically connect the cathode (211) and the auxiliary electrode (221), and the contacting area between the contact structure and the array substrate (21) is greater than or equal to that between auxiliary electrode (221) and the contact structure. The OLED display panel avoids broken circuit between the auxiliary electrode and the cathode that tends to occur due to excessive pressure upon cell-assembling a top-emitting OLED display panel.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: October 17, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Huifeng Wang
  • Patent number: 9768382
    Abstract: The present disclosure relates to the field of display technology, and provides a display substrate, its manufacturing method, and a display device. Pixel partition walls of the display substrate include first pixel partition walls for defining first pixel regions and second pixel partition walls for defining second pixel regions. Each first pixel partition wall is of a height greater than each second pixel partition wall, and a plurality of adjacent second pixel regions is located at an identical first pixel region.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: September 19, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Huifeng Wang, Ze Liu
  • Patent number: 9741777
    Abstract: A bottom-emitting OLED display panel is provided. The bottom-emitting OLED display panel includes: a driving transistor disposed on a substrate; a protective layer covering the driving transistor; a planarization layer disposed on the protective layer; and a OLED device disposed on the planarization layer; and a reflective structure disposed between the protective layer and the planarization layer, the reflective structure is configured for reflecting light emitted from the OLED device and radiated on the reflective structure; a bottom surface of the reflective structure which is close to the protective layer at least covers a region occupied by the driving transistor.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: August 22, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Huifeng Wang
  • Patent number: 9722005
    Abstract: The present invention discloses a light-emitting device, array substrate, display device and manufacturing method of light-emitting device. The light-emitting device comprises a substrate and a pixel define layer provided on the substrate, the pixel define layer defines at least one pixel unit, each of which comprises a plurality of first electrodes, an organic layer provided on the plurality of first electrodes, and a second electrode provided on the organic layer. The light-emitting device, array substrate, display device and manufacturing method provided by the present invention can allow the formed film of the organic layer on the first electrodes to have good flatness and allow portions of the organic layer on different first electrodes to have substantially the same thickness, thus flatness and uniformity of the formed film of the organic layer in the light-emitting device is improved and further display quality of the light-emitting device is improved.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: August 1, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Huifeng Wang, Ze Liu, Gang Wang
  • Publication number: 20170213966
    Abstract: The present disclosure provides in some embodiments a method and a system for forming a film. The method includes forming ink droplets on a base substrate, wherein each of the ink droplets includes a first solvent and a film material dissolved in the first solvent, subjecting the ink droplets to a solvent homogenizing distribution process, and evaporating the first solvent in the ink droplets to form the film after the ink droplets have been subjected to the solvent homogenizing distribution process.
    Type: Application
    Filed: September 24, 2015
    Publication date: July 27, 2017
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Huifeng WANG, Ze LIU