Patents by Inventor Weili Zhao

Weili Zhao 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: 20160357038
    Abstract: A curved liquid crystal display panel and a curved liquid crystal display device are disclosed. The curved liquid crystal display panel comprises: two substrates curved towards a same direction with liquid crystals filled therebetween to form a curved liquid crystal layer; and a transparent layer covering an outer surface of a glass of at least one of the substrates, a stress-optical coefficient of the glass of the substrate and a stress-optical coefficient of the transparent layer at a same side of the liquid crystal layer have opposite signs, wherein the outer surface of the glass of the substrate is a surface of the glass of the substrate away from the liquid crystals. The curved liquid crystal display device comprises the curved liquid crystal display panel. The optical rotation effects of the glass of the substrate and the transparent layer located at the same side of the liquid crystal layer are opposite from each other, optical delay thereof are counteracted by each other.
    Type: Application
    Filed: May 8, 2015
    Publication date: December 8, 2016
    Inventors: Weili Zhao, Jae-Geon You
  • Patent number: 9500918
    Abstract: The invention provides a display substrate and a display device, and can solve the problems that, in the existing display technology, the driving voltage required for driving the blue-phase liquid crystal is higher, and there is large difficulty for manufacturing the wall-like electrodes and poor feasibility of process if the wall-like electrodes are used for driving. A display substrate of the invention comprises a base, and a first electrode and a second electrode arranged on the base, the first electrode having a closed ring shape, the second electrode being arranged in the ring shape of the first electrode, and a height of the second electrode being larger than that of the first electrode. A display device of the invention comprises the above display substrate, a first substrate opposite to the display substrate, and a blue-phase liquid crystal layer between the first substrate and the display substrate.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: November 22, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Weili Zhao
  • Publication number: 20160259199
    Abstract: A flexible display panel, comprising: a first flexible substrate and a second flexible substrate cell-aligned to each other; a blue phase liquid crystal layer disposed between the first flexible substrate and the second flexible substrate and strip electrodes arranged on the second flexible substrate at a side close to the blue phase liquid crystal layer at intervals; a reflective layer disposed on the second flexible substrate at a side far away from the blue phase liquid crystal layer; and a ¼ wave plate and a polarizer successively arranged on the first flexible substrate at a side far away from the blue phase liquid crystal layer, with an included angle between a light transmitting axis of the polarizer and an optical axis of the ¼ wave plate being 45° and an included angle between each of the strip electrodes and the optical axis of the ¼ wave plate being 90°.
    Type: Application
    Filed: October 21, 2014
    Publication date: September 8, 2016
    Inventor: Weili ZHAO
  • Patent number: 9323118
    Abstract: Disclosed is a display device, comprising: two liquid crystal cells connected together and facing in opposite directions, each liquid crystal cell includes a substrate, a pixel electrode, a common electrode, and a cholesteric liquid crystal layer filled between the pixel electrode and the common electrode, the polarization properties of the filled cholesteric liquid crystals are opposite to each other. In the present invention, the two cholesteric liquid crystal cells are connected together, such that transparent display as well as double-side display can be achieved by using the reflective, polarizing and full stable performance of the cholesteric liquid crystals as well as by controlling voltage to switch two cholesteric liquid crystal cells between a plane orientation and a vertical orientation. In addition, with this technology, no polarizer is used and light absorption is removed, thus, the transmission rate of the display device is improved.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: April 26, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Weili Zhao
  • Publication number: 20160026014
    Abstract: The present invention provides a liquid crystal display device, the liquid crystal display device comprising an upper polarizer, a lower polarizer and a first liquid crystal cell arranged between the upper polarizer and the lower polarizer, wherein a second liquid crystal cell is further arranged between the upper polarizer and the first liquid crystal cell, the second liquid crystal cell comprising a first electrode, a second electrode and a first liquid crystal layer arranged between the first electrode and the second electrode, the first liquid crystal layer being a blue phase liquid crystal layer, the first electrode and the second electrode being used for forming a vertical electric field. The present invention can realize switching between a wide view mode and a narrow view mode of the liquid crystal display device.
    Type: Application
    Filed: June 26, 2014
    Publication date: January 28, 2016
    Inventor: Weili Zhao
  • Publication number: 20160026023
    Abstract: A color film substrate, a display panel and a display device are provided. The color film substrate comprises: a flexible base substrate partitioned to a plurality of sub-regions based on a plurality of parallel lines that is paralleled with a setting central axis of the base substrate, the plurality of sub-regions having the same area as each other; and a plurality of photo spacers provided in each of the plurality of sub-regions. For any one of the plurality of sub-regions, each of the photo spacers in one of the plurality of sub-regions is configured such that a thickness of the display panel at a position corresponding to the photo spacers is increasingly changed under the same pressure force as a distance of said one of the plurality of sub-regions from the setting central axis increases. As a result, a thickness of a liquid crystal cell of the display panel can be maintained to be uniform when the display panel is bent.
    Type: Application
    Filed: August 26, 2014
    Publication date: January 28, 2016
    Inventors: Weili ZHAO, Guangxiong WU, Chang XIE
  • Publication number: 20160026025
    Abstract: The invention provides a display substrate and a display device, and can solve the problems that, in the existing display technology, the driving voltage required for driving the blue-phase liquid crystal is higher, and there is large difficulty for manufacturing the wall-like electrodes and poor feasibility of process if the wall-like electrodes are used for driving. A display substrate of the invention comprises a base, and a first electrode and a second electrode arranged on the base, the first electrode having a closed ring shape, the second electrode being arranged in the ring shape of the first electrode, and a height of the second electrode being larger than that of the first electrode. A display device of the invention comprises the above display substrate, a first substrate opposite to the display substrate, and a blue-phase liquid crystal layer between the first substrate and the display substrate.
    Type: Application
    Filed: July 30, 2014
    Publication date: January 28, 2016
    Inventor: Weili ZHAO
  • Patent number: 9244304
    Abstract: A display device and a manufacturing method thereof. The display device includes: an array substrate and a color film substrate which are disposed oppositely each other forming a cell, two-dimensionally arranged sub-pixel regions are correspondingly formed in the array substrate and the color film substrate respectively; wall-shaped electrodes, sandwiched between the array substrate and the color film substrate, the wall-shaped electrodes separate each row or line of the sub-pixels region to form a light ray transmission area and a light ray reflection area; and a liquid crystal layer, sandwiched between the array substrate and the color film substrate, and including liquid crystal in transmission area and liquid crystal in reflection area respectively filled in the light ray transmission area and the light ray reflection area, wherein light rays of the light ray transmission area and the light ray reflection area has the same optical path differences.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: January 26, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Weili Zhao
  • Patent number: 9217909
    Abstract: The present application discloses a display panel, comprising: a first substrate, a second substrate, and a blue phase liquid crystal layer interposed between the first substrate and the second substrate. The first substrate and the second substrate are adapted to generate an electric field in a first direction perpendicular to the display panel. An optical path diverting device is provided between the first substrate and the second substrate, the optical path diverting device is configured so that a light entering the blue phase liquid crystal layer in the first direction from the first substrate is diverted to propagate in the blue phase liquid crystal layer in a second direction parallel to the display panel, and then the light propagating in the second direction is diverted to pass through the blue phase liquid crystal layer and exit from the second substrate in the first direction.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: December 22, 2015
    Assignee: Boe Technology Group Co., Ltd
    Inventor: Weili Zhao
  • Publication number: 20150355455
    Abstract: The present invention relates to the display technical field and discloses specifically an electrowetting display apparatus, comprising: an electrowetting casing including a black oil layer to which an ultraviolet absorbing material is added; an ultraviolet light source arranged at a lower side of the electrowetting casing, for emitting ultraviolet (UV) light upwards; a colored fluorescent layer arranged at an upper side of the electrowetting casing. By means of the electrowetting display apparatus in the present invention, wherein the ultraviolet light source emits UV light, the ultraviolet absorbing material in the black oil layer absorbs the UV light when the black oil layer is spreaded, and the colored fluorescent layer displays colors when the black oil layer is applied electric power and then contracted, such that no colored membrane is necessary to achieve a colored display, an outstanding display effect can thus be realized.
    Type: Application
    Filed: September 29, 2014
    Publication date: December 10, 2015
    Inventor: Weili Zhao
  • Patent number: 9140893
    Abstract: The disclosure of the present invention relates to an electrowetting array substrate and a display device. The electrowetting array substrate comprises a plurality of pixel units. Each pixel unit comprises a common electrode layer, a pixel electrode layer, a hydrophobic dielectric layer provided between the two electrode layers, a non-polar liquid layer spreading on the hydrophobic dielectric layer, and an aqueous electrolyte layer provided between the non-polar liquid layer and the common electrode layer. a surface of the hydrophobic dielectric layer, on which the non-polar liquid layer spreads, is provided with a groove, and the pixel electrode layer is provided with a through hole the position of which corresponds to that of the groove. With such structure, the spread-contract path of the non-polar liquid can be shortened and thus the response rate can be improved. Furthermore, the non-polar liquid can be confined within the pixel unit.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: September 22, 2015
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Weili Zhao
  • Patent number: 9122109
    Abstract: An embodiment of the disclosed technology provides a blue phase liquid crystal display device, comprising: a lower polarizer; a thin film transistor substrate, formed above the lower polarizer; a color filter substrate, disposed above and opposite to the thin film transistor substrate; an upper polarizer, formed above the color filter substrate; a plurality of pixel electrodes, disposed on a surface of the thin film transistor substrate facing the color filter substrate and protruded toward the color filter substrate, wherein negative pixel electrodes and positive pixel electrodes are alternately disposed; a plurality of common electrodes, disposed on the color filter substrate; and a blue phase liquid crystal layer, provided between the thin film transistor substrate and the color filter substrate.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: September 1, 2015
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Weili Zhao, Jaegeon You
  • Patent number: 9102692
    Abstract: A method for treating cancer that includes administering a pharmaceutically effective amount of a composition containing a compound represented by formula (I) or a pharmacologically acceptable salt thereof. In the formula, A represents a 5- to 10-membered heteroaryl group, or a C6-10 aryl group; R1 and R2 independently represent H, OH, X, CN, NO2, a C1-4 haloalkyl group, a C1-6 alkyl group, or the like <R1 and R2 together form a (substituted) 3- to 10-membered heterocyclyl group or a (substituted) 5- to 10-membered heteroaryl group>; R3 represents H, a C1-5 alkyl group, a C6-10 aryl group, a C1-5 alkyl group, or a C1-4 haloalkyl group; and R4 represents H, X, a C1-3 alkyl group, a C1-4 haloalkyl group, OH, CN, NO2, or the like.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: August 11, 2015
    Assignees: Chugai Seiyaku Kabushiki Kaisha, F. Hoffmann-La Roche AG
    Inventors: Naoki Taka, Masayuki Ohmori, Kyoko Takami, Masayuki Matsushita, Tadakatsu Hayase, Ikumi Hyodo, Masami Kochi, Hiroki Nishii, Hirosato Ebiike, Yoshito Nakanishi, Toshiyuki Mio, Lisha Wang, Weili Zhao
  • Publication number: 20150212369
    Abstract: A transflective type liquid crystal display panel and a display using it are provided in order to solve the problem that there exists much difficulty in the making process of the upper substrate in the transflective type liquid crystal display panel.
    Type: Application
    Filed: June 13, 2013
    Publication date: July 30, 2015
    Inventor: Weili Zhao
  • Publication number: 20140315856
    Abstract: A method for treating cancer that includes administering a pharmaceutically effective amount of a composition containing a compound represented by formula (I) or a pharmacologically acceptable salt thereof. In the formula, A represents a 5- to 10-membered heteroaryl group, or a C6-10 aryl group; R1 and R2 independently represent H, OH, X, CN, NO2, a C1-4 haloalkyl group, a C1-6 alkyl group, or the like <R1 and R2 together form a (substituted) 3- to 10-membered heterocyclyl group or a (substituted) 5- to 10-membered heteroaryl group>; R3 represents H, a C1-5 alkyl group, a C6-10 aryl group, a C1-5 alkyl group, or a C1-4 haloalkyl group; and R4 represents H, X, a C1-3 alkyl group, a C1-4 haloalkyl group, OH, CN, NO2, or the like.
    Type: Application
    Filed: June 6, 2014
    Publication date: October 23, 2014
    Applicants: F. HOFFMANN-LA ROCHE AG, CHUGAI SEIYAKU KABUSHIKI KAISHA
    Inventors: Naoki Taka, Masayuki Ohmori, Kyoko Takami, Masayuki Matsushita, Tadakatsu Hayase, Ikumi Hyodo, Masami Kochi, Hiroki Nishii, Hirosato Ebiike, Yoshito Nakanishi, Toshiyuki Mio, Lisha Wang, Weili Zhao
  • Patent number: 8829199
    Abstract: A compound represented by formula (I) or a pharmacologically acceptable salt thereof, which can inhibit a fibroblast growth factor receptor (FGFR) family kinase in cancer tissues. (In the formula, A represents a 5- to 10-membered heteroaryl group, or a C6-10 aryl group; R1 and R2 independently represent H, OH, X, CN, NO2, a C1-4 haloalkyl group, a C1-6 alkyl group, or the like <R1 and R2 together form a (substituted) 3- to 10-membered heterocyclyl group or a (substituted) 5- to 10-membered heteroaryl group>; R3 represents H, a C1-5 alkyl group, a C6-10 aryl group, a C1-5 alkyl group, or a C1-4 haloalkyl group; and R4 represents H, X, a C1-3 alkyl group, a C1-4 haloalkyl group, OH, CN, NO2, or the like.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: September 9, 2014
    Assignees: Chugai Seiyaku Kabushiki Kaisha, F. Hoffmann-La Roche AG
    Inventors: Naoki Taka, Masayuki Ohmori, Kyoko Takami, Masayuki Matsushita, Tadakatsu Hayase, Ikumi Hyodo, Masami Kochi, Hiroki Nishii, Hirosato Ebiike, Yoshito Nakanishi, Toshiyuki Mio, Lisha Wang, Weili Zhao
  • Publication number: 20140160407
    Abstract: The present application discloses a display panel, comprising: a first substrate, a second substrate, and a blue phase liquid crystal layer interposed between the first substrate and the second substrate. The first substrate and the second substrate are adapted to generate an electric field in a first direction perpendicular to the display panel. An optical path diverting device is provided between the first substrate and the second substrate, the optical path diverting device is configured so that a light entering the blue phase liquid crystal layer in the first direction from the first substrate is diverted to propagate in the blue phase liquid crystal layer in a second direction parallel to the display panel, and then the light propagating in the second direction is diverted to pass through the blue phase liquid crystal layer and exit from the second substrate in the first direction.
    Type: Application
    Filed: December 5, 2013
    Publication date: June 12, 2014
    Applicant: Boe Technology Group Co., Ltd.
    Inventor: Weili Zhao
  • Publication number: 20140152944
    Abstract: Disclosed is a display device, comprising: two liquid crystal cells connected together and facing in opposite directions, each liquid crystal cell includes a substrate, a pixel electrode, a common electrode, and a cholesteric liquid crystal layer filled between the pixel electrode and the common electrode, the polarization properties of the filled cholesteric liquid crystals are opposite to each other. In the present invention, the two cholesteric liquid crystal cells are connected together, such that transparent display as well as double-side display can be achieved by using the reflective, polarizing and full stable performance of the cholesteric liquid crystals as well as by controlling voltage to switch two cholesteric liquid crystal cells between a plane orientation and a vertical orientation. In addition, with this technology, no polarizer is used and light absorption is removed, thus, the transmission rate of the display device is improved.
    Type: Application
    Filed: December 2, 2013
    Publication date: June 5, 2014
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Weili Zhao
  • Publication number: 20140118669
    Abstract: A display device and a manufacturing method thereof. The display device includes: an array substrate and a color film substrate which are disposed oppositely each other forming a cell, two-dimensionally arranged sub-pixel regions are correspondingly formed in the array substrate and the color film substrate respectively; wall-shaped electrodes, sandwiched between the array substrate and the color film substrate, the wall-shaped electrodes separate each row or line of the sub-pixels region to form a light ray transmission area and a light ray reflection area; and a liquid crystal layer, sandwiched between the array substrate and the color film substrate, and including liquid crystal in transmission area and liquid crystal in reflection area respectively filled in the light ray transmission area and the light ray reflection area, wherein light rays of the light ray transmission area and the light ray reflection area has the same optical path differences.
    Type: Application
    Filed: November 9, 2012
    Publication date: May 1, 2014
    Inventor: Weili Zhao
  • Publication number: 20140063418
    Abstract: The disclosure discloses a viewing angle compensation element applied to a VA-LCD panel. The VA-LCD panel comprises a liquid crystal cell and an upper polarizer and a lower polarizer which are respectively disposed on the upper side and the lower side of the liquid crystal cell. The viewing angle compensation element comprises a negative C phase retardation compensation film and a biaxial phase retardation compensation film, wherein the negative C phase retardation compensation film(s) is arranged between the liquid crystal cell and one of the upper polarizer and the lower polarizer, and the biaxial phase retardation compensation film is arranged between the liquid crystal cell and the lower polarizer.
    Type: Application
    Filed: July 19, 2013
    Publication date: March 6, 2014
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Weili Zhao