Patents by Inventor Chao Ma

Chao Ma 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: 10053626
    Abstract: The present provides a method of fabricating a polymer dispersed liquid crystal (PDLC) thin film. The method of fabricating the PDLC of the present application forms the first solution by mixing the liquid crystal and the graphene nanoparticles; prepares the prepolymer by using the citric acid and the 1,8-octanediol, or the citric acid, the 1,8-octanediol and the 1,8-octanediol; forms the second solution by dissolving the prepolymer in the anhydrous ethanol; then obtains the mixture prepolymer of the polymer dispersed liquid crystal and the graphene nanoparticles by mixing and uniformly stirring the first solution and the second solution; and obtains the PDLC thin film after the mixture prepolymer is polymerized for several days.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: August 21, 2018
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Chao Ma, Yungjui Lee
  • Publication number: 20180217450
    Abstract: Disclosed is a liquid crystal display device. The liquid crystal display device includes a plurality of pixel structures. Each pixel structure includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel. An area of the blue sub-pixel is greater than or equal to a sum of an area of the red sub-pixel and an area of the green sub-pixel. The disclosed liquid crystal display device has features of high exposure precision, high contrast, fast response, and high resolution.
    Type: Application
    Filed: January 20, 2017
    Publication date: August 2, 2018
    Applicant: Shenzhen China Star Optoelectronics Technology Co. , Ltd.
    Inventors: Chao Ma, Hsiao Hsien Chen
  • Patent number: 10036923
    Abstract: An ultra-slim bezel display panel includes a plurality of light blocking walls formed on a peripheral area of a TFT substrate and a plurality of light blocking walls and a plurality grooves formed on a peripheral area of the CF substrate. The heights of the light blocking walls and the widths of the grooves are determined by taking an additional jet quantity resulting from precision error of a machine into consideration so that, through calculation, the laid sizes of the light blocking walls and the grooves can be correctly determined to prevent, during coating of Pl liquid on the TFT substrate and the CF substrate, the Pl liquid coated on an outer circumference of an active area from flowing backward into the active area. The light blocking walls that are provided on the TFT substrate and have different heights are formed through exposure with a half-tone mask.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: July 31, 2018
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Chao Ma
  • Patent number: 10036915
    Abstract: The present invention provides a method for manufacturing a PDLC display device and a PDLC display device. The method for manufacturing a PDLC display device according to the present invention provides a black matrix and a base plate that collectively delimit a plurality of pixel cavities and fills a mixture of PDLC and red QDs, a mixture of PDLC and green QDs, and PDLC respectively into the plurality of pixel cavities to form a PDLC substrate, which is laminated with an array substrate, and installed with a blue light backlight module, so as to form a PDLC display device. Light leakage and color mixture can be eliminated and processes related to alignment layers and polarizers can be saved to thereby increase the manufacturing efficiency and lower the manufacturing cost.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: July 31, 2018
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Chao Ma, Yungjui Lee, Xiaolong Ma
  • Publication number: 20180197273
    Abstract: An electronic device and associated method place a sticker near a facial region in a digital image. The method detects 2D positions of facial features from a 2D digital image, and calculates a projection matrix from a predetermined 3D reference model having predefined facial feature points that correspond to the 2D detected facial features. The method then selects a digital sticker, and for each corner of the selected digital sticker, uses the projection matrix to transform 3D positions of the corner to corresponding positions on the 2D digital image. The method calculates a refinement matrix defining a correlation of each corner of the selected digital sticker to anchor points in the 2D digital image. Using the refinement matrix, the method calculates updated projected 2D positions and displays the selected sticker on the 2D digital image based on the updated projected 2D positions for each corner point.
    Type: Application
    Filed: December 27, 2017
    Publication date: July 12, 2018
    Inventors: Hao-Ping Hung, Chih-Chao Ma
  • Patent number: 9977284
    Abstract: The present invention provides a display panel and a manufacture method thereof, of which the structure of the display panel is simple, and the manufacture cost is low, and meanwhile, the great display quality is possessed. The manufacture method of the display panel according to the present invention combines the polymer dispersed liquid crystal and the quantum dots, and modifies the structure of traditional upper, lower substrates to acquire a new type display panel. In comparison with the manufacture process of the traditional display panel, the manufacture or addition of the color filter, the alignment films and polarizers are eliminated, and the manufacture process is simple, and the manufacture cost is low, and meanwhile, the display result of the manufactured display panel is new and special, and five display effects of red, green, blue, white, and blur-opaque are provided and the great display quality is possessed.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: May 22, 2018
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Chao Ma
  • Publication number: 20180120651
    Abstract: An ultra-slim bezel display panel includes a plurality of light blocking walls formed on a peripheral area of a TFT substrate and a plurality of light blocking walls and a plurality grooves formed on a peripheral area of the CF substrate. The heights of the light blocking walls and the widths of the grooves are determined by taking an additional jet quantity resulting from precision error of a machine into consideration so that, through calculation, the laid sizes of the light blocking walls and the grooves can be correctly determined to prevent, during coating of Pl liquid on the TFT substrate and the CF substrate, the Pl liquid coated on an outer circumference of an active area from flowing backward into the active area. The light blocking walls that are provided on the TFT substrate and have different heights are formed through exposure with a half-tone mask.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 3, 2018
    Inventor: Chao Ma
  • Patent number: 9939689
    Abstract: A design method for a curved display panel and a curved display device are is provided. The curved display panel comprises a curved thin film transistor array substrate, a liquid crystal layer, a curved color filter substrate, and a spacer assembly. The spacer assembly is used to maintain a predetermined distance between the curved thin film transistor array substrate and the curved color filter substrate. A display defect caused by an uneven cell thickness of the curved display panel is avoided.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: April 10, 2018
    Assignee: Shenzhen China Star Optoelectronics Co., Ltd.
    Inventors: Chao Ma, Xiaolong Ma
  • Publication number: 20180052367
    Abstract: Provided are a vertical photo alignment method and a manufacture method of a liquid crystal display panel. In the vertical alignment method, the pixel region is designed to be a square, and the pixel region is divided into four sub regions of equal sizes, and the pattern units on the mask corresponding to the pixel regions comprises the photic region and the shading region. First, the mask is employed to implement UV light irradiation to one sub region according to the certain irradiation angle to obtain the alignment direction of the sub region, and then, the position of the mask and the irradiation direction of the linear UV light are maintained to be unchanged. By rotating the substrate, and linear UV light irradiation is implemented to the other three sub regions. Accordingly, the pixel region has four sub regions, of which the alignment directions are different from one another.
    Type: Application
    Filed: February 26, 2016
    Publication date: February 22, 2018
    Inventors: Chao Ma, Xiaolong Ma, Yungjui Lee
  • Patent number: 9885918
    Abstract: The present invention provides an ultra-slim bezel display panel, which includes a plurality of light blocking walls formed on a peripheral area of a TFT substrate and a plurality of light blocking walls and a plurality grooves formed on a peripheral area of the CF substrate, wherein the heights of the light blocking walls and the widths of the grooves are determined by taking an additional jet quantity resulting from precision error of a machine into consideration so that, through calculation, the laid sizes of the light blocking walls and the grooves can be correctly determined to prevent, during coating of PI liquid on the TFT substrate and the CF substrate, the PI liquid coated on an outer circumference of an active area from flowing backward into the active area and thus, improve the mura phenomenon occurring in the circumference of the active area and also, to use the light blocking walls on the inside and the outside of circumferential enclosure sealant to achieve an effect of maintaining a cell thickn
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: February 6, 2018
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Chao Ma
  • Publication number: 20170341137
    Abstract: A method for reducing deformation of the end face of a wheel blank, a trough is arranged at the junction of every two separate side dies on the blank rim end face of a cast blank, a trough is arranged in the middle of each single side die on the blank rim end face of the cast blank, 8 troughs are arranged in total, the depth of the troughs is 0.1-1 times the height of a locating lip, the lower limit of the width of the upper ends of the troughs is the height of the locating lip, the upper limit is 1/16 of the circumference of the wheel blank, the lower limit of the width of the lower ends of the troughs 1 is 0, and the upper limit is 1/16 of the circumference of the wheel blank.
    Type: Application
    Filed: April 28, 2017
    Publication date: November 30, 2017
    Applicant: CITIC Dicastal CO., LTD
    Inventors: Jianguo Zeng, Guofei Shi, Chao Ma, Hongyan Sun
  • Patent number: 9823504
    Abstract: The present invention provides a method for manufacturing a PDLC display device and a PDLC display device. The method for manufacturing a PDLC display device according to the present invention includes mixing PDLC with graphene nanoparticles to improve the response speed of the PDLC and reduce a driving voltage of the PDLC, and also combines QDs to make a novel high color saturation display device, which requires no alignment layer and polarizer, providing a simple manufacturing process, showing an innovated and unique displaying effect, demonstrating at least four displaying modes of red, green, blue, and indistinctness, and overcoming light leakage of pixels and color mixture occurring in an existing PDLC display device.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: November 21, 2017
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Chao Ma
  • Publication number: 20170329632
    Abstract: Disclosed a device scheduling method. A Task Description (TD) in a task queue is read and parsed, to acquire task information of a task corresponding to the TD; and when it is determined that the task has met a starting condition and the task is a task with a highest priority among tasks which currently meet the starting condition, a preset parameter is acquired according to the task information, and the parameter is configured to a device intended to complete the task. A task manager and a storage medium is also disclosed.
    Type: Application
    Filed: April 28, 2015
    Publication date: November 16, 2017
    Inventors: Chao Ma, Jinsong Wang, Wenqiong Lin
  • Patent number: 9819836
    Abstract: A printing system is described. The printing system includes a printer having a control unit to perform color mapping from an input color space defined in a printer input profile to a printer color space defined in a printer output profile and a printing condition matching module to automatically determine a printer input profile based on a selection of one of a plurality of printing conditions, wherein a printer input profile corresponds to each of the plurality of printing conditions.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: November 14, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Yue Qiao, Chao Ma, Scott R. Johnson, Hong Li
  • Patent number: 9766508
    Abstract: The present invention provides a method for manufacturing a curved liquid crystal panel, which includes Step 1: pre-setting radii of curvature of a CF substrate and an array substrate of a curved liquid crystal panel; Step 2: preparing the CF substrate (1) and the array substrate (2), the CF substrate (1) and the array substrate (2) being both in the form of a flat panel, where in step (2), a spacing distance L2 between two adjacent data lines (21) and a spacing distance L1 of black matrixes (11) in a direction in which the data lines (21) is lined up are set to be different; Step 3: individually curving the CF substrate (1) and the array substrate (2) to reach the pre-set radii of curvature of Step 1; and Step 4: subjecting the curved CF substrate (1) and array substrate (2) to vacuum lamination through curved surface lamination to be laminated together to form a curved liquid crystal panel.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: September 19, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Chao Ma, Yungjui Lee
  • Publication number: 20170260454
    Abstract: The present provides a method of fabricating a PDLC thin film. The method of fabricating the PDLC of the present application forms the first solution by mixing the liquid crystal and the graphene nanoparticles; prepares the prepolymer by using the citric acid and the 1,8-octanediol, or the citric acid, the 1,8-octanediol and the 1,8-octanediol; forms the second solution by dissolving the prepolymer in the anhydrous ethanol; then obtains the mixture prepolymer of the polymer dispersed liquid crystal and the graphene nanoparticles by mixing and uniformly stirring the first solution and the second solution; and obtains the PDLC thin film after the mixture prepolymer is polymerized for several days.
    Type: Application
    Filed: December 24, 2015
    Publication date: September 14, 2017
    Inventors: Chao Ma, Yungjui Lee
  • Publication number: 20170261780
    Abstract: The present invention provides a method for manufacturing a PDLC display device and a PDLC display device. The method for manufacturing a PDLC display device according to the present invention includes mixing PDLC with graphene nanoparticles to improve the response speed of the PDLC and reduce a driving voltage of the PDLC, and also combines QDs to make a novel high color saturation display device, which requires no alignment layer and polarizer, providing a simple manufacturing process, showing an innovated and unique displaying effect, demonstrating at least four displaying modes of red, green, blue, and indistinctness, and overcoming light leakage of pixels and color mixture occurring in an existing PDLC display device.
    Type: Application
    Filed: December 24, 2015
    Publication date: September 14, 2017
    Inventor: Chao MA
  • Publication number: 20170261779
    Abstract: The present invention provides a method for manufacturing a PDLC display device and a PDLC display device. The method for manufacturing a PDLC display device according to the present invention provides a black matrix and a base plate that collectively delimit a plurality of pixel cavities and fills a mixture of PDLC and red QDs, a mixture of PDLC and green QDs, and PDLC respectively into the plurality of pixel cavities to form a PDLC substrate, which is laminated with an array substrate, and installed with a blue light backlight module, so as to form a PDLC display device. Light leakage and color mixture can be eliminated and processes related to alignment layers and polarizers can be saved to thereby increase the manufacturing efficiency and lower the manufacturing cost.
    Type: Application
    Filed: December 24, 2015
    Publication date: September 14, 2017
    Inventors: Chao Ma, Yungjui Lee, Xiaolong Ma
  • Publication number: 20170171432
    Abstract: A printing system is described. The printing system includes a printer having a control unit to perform color mapping from an input color space defined in a printer input profile to a printer color space defined in a printer output profile and a printing condition matching module to automatically determine a printer input profile based on a selection of one of a plurality of printing conditions, wherein a printer input profile corresponds to each of the plurality of printing conditions.
    Type: Application
    Filed: December 11, 2015
    Publication date: June 15, 2017
    Applicant: Ricoh Company, Ltd.
    Inventors: Yue Qiao, Chao Ma, Scott R. Johnson, Hong Li
  • Publication number: 20170146860
    Abstract: The present invention provides a display panel and a manufacture method thereof, of which the structure of the display panel is simple, and the manufacture cost is low, and meanwhile, the great display quality is possessed. The manufacture method of the display panel according to the present invention combines the polymer dispersed liquid crystal and the quantum dots, and modifies the structure of traditional upper, lower substrates to acquire a new type display panel. In comparison with the manufacture process of the traditional display panel, the manufacture or addition of the color filter, the alignment films and polarizers are eliminated, and the manufacture process is simple, and the manufacture cost is low, and meanwhile, the display result of the manufactured display panel is new and special, and five display effects of red, green, blue, white, and blur-opaque are provided and the great display quality is possessed.
    Type: Application
    Filed: August 24, 2015
    Publication date: May 25, 2017
    Inventor: Chao Ma