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).

  • Patent number: 9704927
    Abstract: Disclosed is an organic electroluminescent display panel, which includes a plurality of RGBW subpixel units, wherein each R subpixel unit includes 4 R subpixel elements, each G subpixel unit includes 4 G subpixel elements, each B subpixel unit includes 4 B subpixel elements, each W subpixel unit includes 4 W subpixel elements, and two adjacent subpixel units emit light in different colors, respectively. The R subpixel element, the G subpixel element, the B subpixel element and the W subpixel element form a pixel region of the display panel.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: July 11, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Huifeng Wang
  • Patent number: 9640589
    Abstract: The invention provides an organic electroluminescent display panel and a display device. The organic electroluminescent display panel of the invention includes a substrate, and a plurality of sub-pixel units of the same shape formed on the substrate, each sub-pixel unit including 6 sub-pixel elements of the same color, the geometric shape of each sub-pixel element being such that the center of the sub-pixel unit where it is located is taken as a vertex; the sub-pixel units are in 3 colors, any two adjacent sub-pixel units being different in color; the connecting lines of the centers of every two adjacent sub-pixel units among 3 sub-pixel units adjacent to each other form an equilateral triangle, 3 sub-pixel elements defined by that equilateral triangle form one pixel unit.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: May 2, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Huifeng Wang
  • Publication number: 20170104042
    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: Application
    Filed: July 22, 2015
    Publication date: April 13, 2017
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Huifeng WANG, Ze LIU
  • Publication number: 20170092707
    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: Application
    Filed: April 15, 2016
    Publication date: March 30, 2017
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Huifeng WANG
  • Publication number: 20160365531
    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: Application
    Filed: June 30, 2015
    Publication date: December 15, 2016
    Inventors: Chunjing Hu, Huifeng Wang
  • Publication number: 20160359112
    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: Application
    Filed: April 21, 2015
    Publication date: December 8, 2016
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Huifeng WANG, Ze LIU
  • Patent number: 9508933
    Abstract: A method for manufacturing an organic light-emitting diode (OLED) device includes: forming auxiliary electrodes (2) on a resin layer (1) of an OLED substrate; forming a gas generation layer (4) on the auxiliary electrodes (2); forming an organic light-emitting layer (6) on the gas generation layer (4); placing a receptor substrate (12) on the organic light-emitting layer (6) and scanning auxiliary electrode regions (22) by laser, so that the gas generation layer (4) is decomposed under laser irradiation to release gas, and hence the organic light-emitting layer (6) in the auxiliary electrode regions (22) is transferred to the receptor substrate (12); removing the receptor substrate (12); and forming a cathode (7) on the auxiliary electrodes. The manufacturing process can effectively reduce poor contact between the auxiliary electrodes and the cathode.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: November 29, 2016
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Huifeng Wang
  • Patent number: 9466650
    Abstract: Embodiments of the present invention provide a display panel with a pixel defining layer and a manufacturing method of the pixel defining layer, and the display panel with the pixel defining layer comprises: a substrate; a plurality of pixel regions, arranged on the substrate in a matrix form; the pixel defining layer, disposed on the substrate and comprising: a plurality of openings; a pixel divider, surrounding each of the plurality of openings and defining the plurality of pixel regions, wherein a sidewall of the pixel divider for defining each of the pixel regions is formed so that a slope angle of an upper portion is larger than that of a lower portion thereof.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: October 11, 2016
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Huifeng Wang, Ze Liu
  • Publication number: 20160284766
    Abstract: The invention provides an organic electroluminescent display panel and a display device. The organic electroluminescent display panel of the invention includes a substrate, and a plurality of sub-pixel units of the same shape formed on the substrate, each sub-pixel unit including 6 sub-pixel elements of the same color, the geometric shape of each sub-pixel element being such that the center of the sub-pixel unit where it is located is taken as a vertex; the sub-pixel units are in 3 colors, any two adjacent sub-pixel units being deferent in color; the connecting lines of the centers of every two adjacent sub-pixel units among 3 sub-pixel units adjacent to each other form an equilateral triangle, 3 sub-pixel elements defined by that equilateral triangle form one pixel unit.
    Type: Application
    Filed: July 21, 2014
    Publication date: September 29, 2016
    Inventor: Huifeng WANG
  • Publication number: 20160254455
    Abstract: A method for manufacturing an organic light-emitting diode (OLED) device includes: forming auxiliary electrodes (2) on a resin layer (1) of an OLED substrate; forming a gas generation layer (4) on the auxiliary electrodes (2); forming an organic light-emitting layer (6) on the gas generation layer (4); placing a receptor substrate (12) on the organic light-emitting layer (6) and scanning auxiliary electrode regions (22) by laser, so that the gas generation layer (4) is decomposed under laser irradiation to release gas, and hence the organic light-emitting layer (6) in the auxiliary electrode regions (22) is transferred to the receptor substrate (12); removing the receptor substrate (12); and forming a cathode (7) on the auxiliary electrodes. The manufacturing process can effectively reduce poor contact between the auxiliary electrodes and the cathode.
    Type: Application
    Filed: December 17, 2014
    Publication date: September 1, 2016
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Huifeng WANG
  • Publication number: 20160254331
    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: Application
    Filed: August 15, 2014
    Publication date: September 1, 2016
    Inventor: Huifeng WANG
  • Publication number: 20160197128
    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: Application
    Filed: April 16, 2015
    Publication date: July 7, 2016
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiangbo Chen, Can Wang, Huifeng Wang, Wenfeng Song
  • Publication number: 20160181566
    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: Application
    Filed: October 1, 2014
    Publication date: June 23, 2016
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Huifeng WANG
  • Publication number: 20160056218
    Abstract: Embodiments of the present invention provide a display panel with a pixel defining layer and a manufacturing method of the pixel defining layer, and the display panel with the pixel defining layer comprises: a substrate; a plurality of pixel regions, arranged on the substrate in a matrix form; the pixel defining layer, disposed on the substrate and comprising: a plurality of openings; a pixel divider, surrounding each of the plurality of openings and defining the plurality of pixel regions, wherein a sidewall of the pixel divider for defining each of the pixel regions is formed so that a slope angle of an upper portion is larger than that of a lower portion thereof.
    Type: Application
    Filed: November 6, 2014
    Publication date: February 25, 2016
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Huifeng WANG, Ze LIU
  • Publication number: 20160043150
    Abstract: There are provided an OLED pixel defining structure, a manufacturing method thereof and an array substrate. The OLED pixel defining structure includes a pixel defining layer, with a plurality of openings corresponding to sub-pixels of different colors being included in the pixel defining layer, each of the openings forming a sub-pixel defining zone of a corresponding color, wherein at least two sub-pixel defining zones of the same color are intercommunicated.
    Type: Application
    Filed: November 19, 2013
    Publication date: February 11, 2016
    Inventors: HUIFENG WANG, ZE LIU
  • Publication number: 20160039182
    Abstract: The present invention provides a bearing substrate used for carrying a flexible film of a flexible display device in the process of manufacturing the flexible display device. The bearing substrate comprises a substrate and a gas generation layer located on the substrate. In the process of manufacturing the flexible display device, the flexible film is located on the gas generation layer, and the material of the gas generation layer can be decomposed to generate gas. Correspondingly, the present invention further provides a manufacturing method of a flexible display device. In the present invention, after display elements on a flexible film have been manufactured, the flexible film can be separated from the substrate; meanwhile, in the present invention, both the stripping manner of flexible film and the separation force of stripping the flexible film from the substrate can be flexibly adjusted.
    Type: Application
    Filed: March 25, 2014
    Publication date: February 11, 2016
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Huifeng WANG
  • Publication number: 20160035494
    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: Application
    Filed: October 13, 2015
    Publication date: February 4, 2016
    Inventors: Bing Zhao, Linghui Du, Yongxu Xie, Qingfeng Wan, Huifeng Wang, Guohua Qiu
  • Publication number: 20160035802
    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: Application
    Filed: June 30, 2014
    Publication date: February 4, 2016
    Inventors: Huifeng WANG, Ze LIU, Gang WANG
  • Publication number: 20160013252
    Abstract: Disclosed is an organic electroluminescent display panel, which includes a plurality of RGBW subpixel units, wherein each R subpixel unit includes 4 R subpixel elements, each G subpixel unit includes 4 G subpixel elements, each B subpixel unit includes 4 B subpixel elements, each W subpixel unit includes 4 W subpixel elements, and two adjacent subpixel units emit light in different colors, respectively. The R subpixel element, the G subpixel element, the B subpixel element and the W subpixel element form a pixel region of the display panel.
    Type: Application
    Filed: June 13, 2014
    Publication date: January 14, 2016
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: HUIFENG WANG
  • Publication number: 20120300362
    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: Application
    Filed: May 21, 2009
    Publication date: November 29, 2012
    Applicant: Ningxia Orient Tantalum Industry Co., Ltd.
    Inventors: Bing Zhao, Linghui Du, Yongxu Xie, Quinfeng Wan, Huifeng Wang, Guohua Qiu