Patents by Inventor Yungjui LEE

Yungjui LEE 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: 9921432
    Abstract: The invention provides a manufacturing method for VA type LCD panel. The manufacturing method of the present invention adds a photo-initiator and a polymeric monomer to LC material, and uses UV light to irradiate through a mask so that the polymeric monomer polymerizes in accordance with the mask pattern to form polymer protrusions on the array substrate side to achieve the effect similar to protrusion or slit. The method is applicable for the LC molecules to form the pre-tilt angle so that the LC molecules in the panel are lined up along the normal direction. The method is simple, eliminates ITO etching process on the array substrate side, and reduces costs.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: March 20, 2018
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Song Lan, Xiaolong Ma, Yungjui Lee, Xiufen Zhu
  • Publication number: 20180074354
    Abstract: A flexible liquid crystal panel includes a first and a second flexible substrates opposite to each other, a first and a second flat layers arranged on inner sides of the first and second flexible substrates respectively, a color filter layer arranged between the second flexible substrate and the second flat layer, a spacing retaining wall formed on the second flat layer, seal glue coated on a side of the spacing retaining wall adjacent to the first flexible substrate, and liquid crystal filled between the first and second flat layers. The spacing retaining wall includes a plurality of transverse parts parallel with one another and extending transversely and a plurality of longitudinal parts parallel with one another and extending longitudinally. The transverse parts and the longitudinal parts intersect one another to separate a plurality of sub pixels and define and delimit closed areas in which the liquid crystal is filled.
    Type: Application
    Filed: November 25, 2017
    Publication date: March 15, 2018
    Applicant: Shenzhen China Star Optoelectronics Technology Co. , Ltd.
    Inventors: Yungjui LEE, Xinhui ZHONG
  • Publication number: 20180057746
    Abstract: The present invention provides a self alignment liquid crystal medium composition and a liquid crystal display panel. The self alignment liquid crystal medium composition includes two or more additives, and the two or more additives are selected from a first additive and a second additive; both the molecule structures of the first additive and the second additive comprise two parts, the head group and the tail group. The main function of the head groups of the first additive and the second additive is for being anchored on the substrate with the intermolecular force, and the main function of the tail group R is similar to the function of the PI branch to vertically align the liquid crystal molecules in the steric hindrance manner. With collocation of various additives, the easily gathering property of the additive containing inorganic silicon can be improved to promote the substrate anchoring function of the additive containing organic group.
    Type: Application
    Filed: February 26, 2016
    Publication date: March 1, 2018
    Inventors: Song Lan, Yungjui Lee, 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
  • Publication number: 20180045991
    Abstract: Disclosed are thermal crosslink material, a manufacture method of a liquid crystal display panel and a liquid crystal display panel. A structural formula of the thermal crosslink material is wherein A is B is R is a linear or chain branched alkyl having 5-20 C atoms, and a first group obtained after some CH2 group in the alkyl is replaced by phenyl cycloalkyl, —O—, —CONH—, —COO—, —O—CO—, —CO— or —CH?CH— group, or a second group obtained after the alkyl and some H atom in the first group are replaced by F atom or Cl atom; the crosslinking reaction can be generated among the molecules of the thermal crosslink material to form polymer having crosslinked network, and the head groups A and B can be anchored on the substrate surface, and the branch R can act the result of vertical alignment, and thus to form the alignment films.
    Type: Application
    Filed: February 26, 2016
    Publication date: February 15, 2018
    Inventors: Song Lan, Yungjui Lee
  • Publication number: 20180046035
    Abstract: The present invention provides a manufacture method of a liquid crystal display panel. The graphene/PEDOT:PSS composite transparent conductive films replace the traditional ITO transparent conductive films, and a polar material is mixed in the liquid crystal compound of the liquid crystal display panel. The structural formula of the polar material is A-B, wherein the main function of the head group A is to create the larger intermolecular force between the polar material and the graphene/PEDOT:PSS composite transparent conductive films, and the main function of the tail group B is similar with the function of the PI branch to vertically align the liquid crystal molecules in the steric hindrance manner to act the effect of the vertical alignment; i.e. the polar material can generate a larger intermolecular force with the graphene/PEDOT:PSS composite transparent conductive films, and is vertically aligned on the TFT substrate and the CF substrate.
    Type: Application
    Filed: February 26, 2016
    Publication date: February 15, 2018
    Inventors: Song Lan, Yungjui Lee, Tao Hu
  • Patent number: 9891474
    Abstract: The present invention provides a flexible liquid crystal panel and a manufacture method thereof.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: February 13, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Yungjui Lee, Xinhui Zhong
  • Publication number: 20180039122
    Abstract: The present invention provides a method for manufacturing a patterned electrode and a liquid crystal display panel and a manufacturing method thereof. The method for manufacturing a patterned electrode includes the following steps: Step 1: mixing a graphene aqueous solution and a PEDOT:PSS solution at a predetermined ratio to form a graphene/PEDOT:PSS mixture solution; Step 2: mixing the graphene/PEDOT:PSS mixture solution and photoresist at a predetermined ratio, followed by stirring, to form graphene/PEDOT:PSS photoresist that has electrical conduction capability; Step 3: providing a substrate and coating the graphene/PEDOT:PSS photoresist formed in Step 2 on the substrate, followed by exposure, development, and baking to form a patterned electrode. Compared to a conventional process of manufacturing an ITO electrode, the present invention can simplify the manufacturing process of a patterned electrode and lower down the manufacturing cost of the patterned electrode.
    Type: Application
    Filed: December 23, 2015
    Publication date: February 8, 2018
    Inventors: Yungjui Lee, Haijun Wang, Tao Hu
  • Publication number: 20180030352
    Abstract: The disclosure provides a reactive perpendicular aligned material, a liquid crystal display panel, and a method for aligning liquid crystals, a general structural formula of the reactive perpendicular aligned material is A-Z—R, A is —CH?CH—COOH; Z is where n?1; R represents a linear chained or a branched chained alkyl group with 5˜20 C atoms, a CH2 group in the alkyl group is substituted by a phenyl group, a naphthenic base, —CONH—, —COO—, —O—CO—, —S—, —CO— or —CH?CH—, or a F atom or a Cl atom substitutes for a H atom in the alkyl group.
    Type: Application
    Filed: December 24, 2015
    Publication date: February 1, 2018
    Inventors: Song Lan, Xiaolong Ma, Yungjui Lee
  • Patent number: 9857623
    Abstract: The present invention provides a reflective flexible liquid crystal display, which includes: an upper flexible substrate (1), a lower flexible substrate (3) arranged opposite to the upper flexible substrate (1), a layer of liquid crystal (5) filled between the upper flexible substrate (1) and the lower flexible substrate (3), a circular polarization sheet (7) arranged on an upper surface of the upper flexible substrate (1), and a flexible light guide plate (9) arranged on an upper surface of the circular polarization sheet (7). The upper flexible substrate (1) and the flexible light guide plate (9) are both transparent and the lower flexible substrate (3) includes a reflector layer (37) formed thereon. The reflective flexible liquid crystal display has a simple structure, allowing the liquid crystal display to be applied to flexible displaying.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: January 2, 2018
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xinhui Zhong, Yungjui Lee
  • Publication number: 20170338290
    Abstract: Disclosed is a WOLED display device, including a substrate (10), a TFT array layer (20) located on the substrate (10), a light purification layer (60) located on the TFT array layer (20), a color filter layer (40) located on the light purification layer (60) and a WOLED (30) located on the color filter layer (40). The color filter layer (40) includes red, green, blue light resist units (41, 42, 43) which are aligned in array. The red, green, blue light resist units (41, 42, 43) filtrate white light to respectively form red, green, blue light, and the light purification layer (60) selectively absorbs the red, green, blue light to decrease half band widths thereof to promote the light filtering effect of the color filter layer (40), and light purity of the three primary colors of red, green, and blue are high to show a wider color gamut.
    Type: Application
    Filed: June 15, 2016
    Publication date: November 23, 2017
    Inventors: Hong Liu, Yungjui Lee, Hsiaohsien Chen
  • Patent number: 9816013
    Abstract: The present disclosure provides a method for preparing a carbon nanotube conductive ball and a method for preparing a carbon nanotube ball conductive adhesive. The method for preparing the carbon nanotube conductive ball integrates the advantages of stability of polymer microsphere and SiO2 microsphere, and high conductivity of carbon nanotube, by applying polymer microsphere or SiO2 microsphere as matrix, and plating carbon nanotube material to obtain the spherical carbon nanotube conductive ball. The method is simple, low equipment requirements, abundant raw materials, low cost, and high efficiency, the particle size of the carbon nanotube conductive ball is controllable, the material stability and conductivity of the carbon nanotube conductive ball are excellent.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: November 14, 2017
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xia Zhang, Yungjui Lee, Tao Hu
  • Publication number: 20170283665
    Abstract: A conductive adhesive includes spherical graphene and an epoxy gel system that includes epoxy, a hardener, and an accelerant. A mass ratio of the epoxy gel system to the spherical graphene is 100:2-30. The epoxy of the epoxy gel system is one of one of bisphenol A epoxy resins E44, bisphenol A epoxy resins E51, bisphenol A epoxy resins E54, bisphenol A epoxy resins EPON826, and bisphenol A epoxy resins EPON828, and an amount of the epoxy to the epoxy gel system is 80 wt % to 95 wt %. The hardener is one of hexahydrophthalic anhydride, tetrahydrophthalic anhydride, succinic dihydrazide, adipic acid dihydrazide, dicyandiamide, and phenylenediamine, and an amount of the hardener to the epoxy gel system is 1 wt % to 12 wt %. The accelerant is one of 2-ethyl-4-methylimidazole, imidazole, 2-methylimidazole, and triethylamine, and an amount of the accelerant to the epoxy system is 0.3 wt % to 5 wt %.
    Type: Application
    Filed: June 22, 2017
    Publication date: October 5, 2017
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Yungjui LEE, Xia ZHANG, Ji LI, Yahui CHEN
  • Publication number: 20170269274
    Abstract: The present invention provides a method for manufacturing a quantum dot polarization plate. The method for manufacturing a quantum dot polarization plate according to the present invention forms a quantum dot layer and a polarization layer separately on different bases to respectively make a quantum dot film and a polarization film and then bonds the quantum dot film and the polarization film together to form a quantum dot polarization plate. The quantum dot polarization plate is not made through successive formations of films on the same base so that the quantum dot layer of the quantum dot polarization plate can be manufactured through a high-temperature process or a low-temperature process, thereby expanding the range of material section and manufacture for quantum dots. The quantum dot polarization plate manufactured with such process helps increase color gamut coverage of the display panel, but does not cause elimination of light polarization.
    Type: Application
    Filed: December 21, 2015
    Publication date: September 21, 2017
    Inventors: Xiaoping Cheng, Yungjui Lee
  • 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: 20170261778
    Abstract: The invention provides a PDLC display panel, manufacturing method thereof, and an LCD. The PDLC display panel comprises a PDLC layer, which comprising a plurality of red sub-pixel portions, green sub-pixel portions, and blue sub-pixel portions. The red, green and blue sub-pixel portion is a PDLC film having red, green and blue dye, respectively. The light passing through the red, green, and blue sub-pixel portions of the PDLC layer displays red, green and blue colors respectively. The PDLC display panel is simple in structure, on the premise to achieve color display, eliminating the upper and lower polarizers, polyimide (PI) alignment layer, CF layer and the black matrix, to achieve high light penetration rate and low manufacturing costs, as well as high backlight utilization with the use of quantum dot layer in the CF substrate.
    Type: Application
    Filed: December 28, 2015
    Publication date: September 14, 2017
    Inventors: Song Lan, Yungjui Lee, Ji Li, Xiaolong Ma
  • Publication number: 20170261818
    Abstract: The invention provides a manufacturing method for VA type LCD panel. The manufacturing method of the present invention adds a photo-initiator and a polymeric monomer to LC material, and uses UV light to irradiate through a mask so that the polymeric monomer polymerizes in accordance with the mask pattern to form polymer protrusions on the array substrate side to achieve the effect similar to protrusion or slit. The method is applicable for the LC molecules to form the pre-tilt angle so that the LC molecules in the panel are lined up along the normal direction. The method is simple, eliminates ITO etching process on the array substrate side, and reduces costs.
    Type: Application
    Filed: December 28, 2015
    Publication date: September 14, 2017
    Inventors: Song Lan, Xiaolong Ma, Yungjui Lee, Xiufen Zhu
  • Publication number: 20170261788
    Abstract: The present invention provides an array substrate and a manufacturing method thereof. The array substrate of the present invention includes: a base plate (1), a TFT layer (2) arranged on the base plate (1), a quantum dot layer (3) arranged on the TFT layer (2), and a protective filter layer (4) arranged on the quantum dot layer (3). The arrangement of the quantum dot layer (3) helps compensate the insufficiency of color displaying of an existing color filter layer and expands the range of color gamut. The arrangement of the protective filter layer (4) helps overcome the issues of poor efficiency and stability of the prior art quantum dot.
    Type: Application
    Filed: December 22, 2015
    Publication date: September 14, 2017
    Inventors: Xiaoping Cheng, Yungjui Lee
  • Publication number: 20170260426
    Abstract: The present disclosure provides a method for preparing a carbon nanotube conductive ball and a method for preparing a carbon nanotube ball conductive adhesive. The method for preparing the carbon nanotube conductive ball integrates the advantages of stability of polymer microsphere and SiO2 microsphere, and high conductivity of carbon nanotube, by applying polymer microsphere or SiO2 microsphere as matrix, and plating carbon nanotube material to obtain the spherical carbon nanotube conductive ball. The method is simple, low equipment requirements, abundant raw materials, low cost, and high efficiency, the particle size of the carbon nanotube conductive ball is controllable, the material stability and conductivity of the carbon nanotube conductive ball are excellent.
    Type: Application
    Filed: December 28, 2015
    Publication date: September 14, 2017
    Inventors: Xia Zhang, Yungjui Lee, Tao Hu