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: 10914988
    Abstract: A vertical alignment liquid crystal display includes a first substrate, a second substrate, a liquid crystal layer located between the first substrate and the second substrate, a first and a second passivation layers respectively located at inner sides of the first and the second substrates, a common electrode layer and a pixel electrode layer respectively located on the first and the second passivation layers. The liquid crystal layer includes liquid crystal molecules, auxiliary alignment agent and a polymer network penetrating the entire liquid crystal layer. The auxiliary alignment agent makes the liquid crystal molecules in the liquid crystal layer vertically aligned on the surfaces of the first and the second substrates. The polymer network stabilizes alignment of the liquid crystal molecules and enhances vertical alignment effect of the auxiliary alignment agent to the liquid crystal molecules.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: February 9, 2021
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xinhui Zhong, Yungjui Lee
  • Patent number: 10824017
    Abstract: Disclosed are a 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 and R is a linear or chain branched alkyl having 5-20 C atoms, wherein one or more CH2 in the alkyl is substituted with phenyl, cycloalkyl, —O—, —CONH—, —COO—, —O—CO—, —CO—, or —CH?CH— group, or one or more H atoms in the first group are substituted with F atom or Cl atom; a specific crosslink material may be one of Molecules of the thermal crosslink material crosslink together to form a polymer having a crosslinked network, and groups A and B can be anchored on a substrate surface. The branch R provides an effect of vertical alignment and can form alignment films.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: November 3, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Song Lan, Yungjui Lee
  • Patent number: 10824018
    Abstract: Disclosed are a 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 and R is a linear or chain branched alkyl having 5-20 C atoms, wherein one or more CH2 in the alkyl is substituted with phenyl, cycloalkyl, —O—, —CONH—, —COO—, —O—CO—, —CO—, or —CH?CH— group, or one or more H atoms in the first group are substituted with F atom or Cl atom; a specific crosslink material may be one of Molecules of the thermal crosslink material crosslink together to form a polymer having a crosslinked network, and groups A and B can be anchored on a substrate surface. The branch R provides an effect of vertical alignment and can form alignment films.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: November 3, 2020
    Assignee: Shenzhen China Star Optoelectonics Technology Co., Ltd.
    Inventors: Song Lan, Yungjui Lee
  • Patent number: 10775550
    Abstract: The present disclosure relates to an optical film configured on a top of a light guide plate. The optical film is made of quantum dot (QD) material, and the optical film is filled with a plurality of diffusion particles configured to uniformly distribute incident light toward different angles. As such, the backlight emitted from the backlight module may be uniform and may be emitted toward different angles, the color difference and the chromaticity of the display device from different viewing angles may be the same, and the performance of the display device may be improved.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: September 15, 2020
    Assignee: HUIZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jianyu Chang, Yungjui Lee, Yuchun Hsiao, Shengjer Changchien
  • Patent number: 10743424
    Abstract: The present invention provides a method for manufacturing a flexible array substrate. The method includes, first, successively forming an adhesive layer, a passivation layer, a back-side drive circuit, a planarization layer, a flexible backing plate, and a front-side drive circuit and a display circuit, in a stacked arrangement, on a rigid support plate and then peeling off the rigid support plate and the adhesive layer to form a flexible array substrate having a double-sided circuit structure. The entire process requires no steps of peeling, reversing, and then re-attaching of the flexible backing plate so that it is possible to avoid the issues of poor flatness and low yield resulting from improper or wrongful re-attachment of the flexible backing plate and thus, fabrication difficulty of a flexible array substrate having a double-sided circuit structure may be lowered down to thereby improve fabrication yield of the flexible array substrate.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: August 11, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Lixuan Chen, Yungjui Lee
  • Publication number: 20200033722
    Abstract: The present invention provides a manufacture method of a nano-imprint lithography template and a nano-imprint lithography template. In the manufacture method of the nano-imprint lithography template, first, the soft membrane having a nanowire gate structure is wrapped on the outer circumferential surface of the cylindric hard roller to form the nanowire gate structure film layer to obtain the temporary roller. Then, the low melting point solder alloy is utilized to form the structure hardened layer on the outer circumferential surface of the temporary roller along the nanowire gate structure of the nanowire gate structure film layer to obtain the nano-imprint lithography template having the nanowire gate structure. By forming the hard structure hardened layer on the soft nanowire gate structure for hardening the soft nanowire gate structure, the issue that the hardness of the micro structure material itself in the imprint procedure is not enough is overcame.
    Type: Application
    Filed: October 2, 2019
    Publication date: January 30, 2020
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Lixuan Chen, Yungjui Lee
  • Patent number: 10534232
    Abstract: A manufacturing method of an array substrate includes the steps of providing a base plate and forming a thin-film transistor (TFT) layer on the base plate; forming a quantum dot layer on the TFT layer; and forming a protective filter layer on the quantum dot layer to provide protection to the quantum dot layer. The protective filter layer also provides an effect of light filtering in order to prevent ultraviolet light or blue light from transmitting therethrough and allows light of red and green colors to pass.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: January 14, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xiaoping Cheng, Yungjui Lee
  • Patent number: 10475970
    Abstract: A micro LED display panel and a manufacturing method thereof are provided. The micro LED display panel includes: a substrate, a plurality of micro LEDs disposed on the substrate and arranged in an array, a transparent encapsulation layer covering the plurality of micro LEDs, and a quantum dot (QD) layer disposed on the encapsulation layer. By adding the QD layer on the encapsulation layer, the short wavelength light emitted by the micro LEDs excites the QD layer to emit light, so that the micro LEDs and the QD layer form the basic display units of the micro LED display panel to expand the gamut of micro LED display panel and improve display quality of the micro LED display panel.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: November 12, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Lixuan Chen, Yungjui Lee
  • Publication number: 20190293979
    Abstract: A manufacturing method of an array substrate includes the steps of providing a base plate and forming a thin-film transistor (TFT) layer on the base plate; forming a quantum dot layer on the TFT layer; and forming a protective filter layer on the quantum dot layer to provide protection to the quantum dot layer. The protective filter layer also provides an effect of light filtering in order to prevent ultraviolet light or blue light from transmitting therethrough and allows light of red and green colors to pass.
    Type: Application
    Filed: May 28, 2019
    Publication date: September 26, 2019
    Inventors: Xiaoping Cheng, Yungjui Lee
  • Publication number: 20190265404
    Abstract: The present disclosure relates to an optical film, configured on a top of a light guide plate, including: a diffusion sheet and an enhancement sheet configured on the diffusion sheet. At least one of the diffusion sheet and the enhancement sheet is doped with quantum dot (QD) material. As such, the emergent angle may be increased, and the viewing angle of the display device may be increased.
    Type: Application
    Filed: October 4, 2018
    Publication date: August 29, 2019
    Inventors: Jianyu CHANG, Yungjui LEE, Yuchun HSIAO, Shengjer CHANGCHIEN
  • Publication number: 20190265403
    Abstract: The present disclosure relates to an optical film configured on a top of a light guide plate. The optical film is made of quantum dot (QD) material, and the optical film is filled with a plurality of diffusion particles configured to uniformly distribute incident light toward different angles. As such, the backlight emitted from the backlight module may be uniform and may be emitted toward different angles, the color difference and the chromaticity of the display device from different viewing angles may be the same, and the performance of the display device may be improved.
    Type: Application
    Filed: August 24, 2018
    Publication date: August 29, 2019
    Inventors: Jianyu CHANG, Yungjui LEE, Yuchun HSIAO, Shengjer CHANGCHIEN
  • Patent number: 10371999
    Abstract: A manufacturing method of an array substrate includes the steps of providing a base plate and forming a thin-film transistor (TFT) layer on the base plate; forming a quantum dot layer on the TFT layer; and forming a protective filter layer on the quantum dot layer to provide protection to the quantum dot layer. The protective filter layer also provides an effect of light filtering in order to prevent ultraviolet light or blue light from transmitting therethrough.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: August 6, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xiaoping Cheng, Yungjui Lee
  • Publication number: 20190204636
    Abstract: Disclosed are a 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 and R is a linear or chain branched alkyl having 5-20 C atoms, wherein one or more CH2 in the alkyl is substituted with phenyl cycloalkyl, —O—, —CONH—, —COO—, —O—CO—, —CO—, or —CH?CH— group, or one or more H atoms in the first group are substituted with F atom or CI atom; a specific crosslink material may be one of Molecules of the thermal crosslink material crosslink together to form a polymer having a crosslinked network, and groups A and B can be anchored on a substrate surface. The branch R provides an effect of vertical alignment and can form alignment films.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 4, 2019
    Inventors: Song Lan, Yungjui Lee
  • Publication number: 20190204635
    Abstract: Disclosed are a 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 and R is a linear or chain branched alkyl having 5-20 C atoms, wherein one or more CH2 in the alkyl is substituted with phenyl cycloalkyl, —O—, —CONH—, —COO—, —O—CO—, —CO—, or —CH?CH— group, or one or more H atoms in the first group are substituted with F atom or Cl atom; a specific crosslink material may be one of Molecules of the thermal crosslink material crosslink together to form a polymer having a crosslinked network, and groups A and B can be anchored on a substrate surface. The branch R provides an effect of vertical alignment and can form alignment films.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 4, 2019
    Inventors: Song Lan, Yungjui Lee
  • Patent number: 10308874
    Abstract: The liquid crystal material of the disclosure includes liquid crystal molecules, polymerizable monomers and a vertical alignment agent, wherein the polymerizable monomers and the vertical alignment agent can be polymerized under ultraviolet irradiation to form a polymer, while the polymer deposits on a substrate to form a polymer film capable of replacing the PI alignment film; so that an alignment process of the liquid crystal is simplified, and a cost is economized. The method of fabricating the liquid crystal display panel of the disclosure eliminates the fabricating process of the alignment film.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: June 4, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Song Lan, Yungjui Lee
  • Patent number: 10303001
    Abstract: Disclosed are a 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 and R is a linear or chain branched alkyl having 5-20 C atoms, wherein one or more CH2 in the alkyl is substituted with phenyl cycloalkyl, —O—, —CONH—, —COO—, —O—CO—, —CO— or —CH?CH— group, or one or more H atoms in the first group are substituted with F atom or Cl atom; a specific crosslink material may be one of Molecules of the thermal crosslink material crosslink together to forma polymer having a crosslinked network, and groups A and B can be anchored on a substrate surface The branch R provides an effect of vertical alignment and can form alignment films.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: May 28, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Song Lan, Yungjui Lee
  • Patent number: 10288946
    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: Grant
    Filed: November 25, 2017
    Date of Patent: May 14, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Yungjui Lee, Xinhui Zhong
  • Publication number: 20190140017
    Abstract: A Micro LED color display device is provided, which uses a second blue LED (B2) with a short wavelength to excite a green-color-conversion layer (G) to replace a green LED (P2) in green sub-pixels. The second blue LED (B2) itself is more stable, the chromaticity of the green color is controlled by controlling the accuracy of the coating thickness of the green-color-conversion layer (G). The accuracy of the coating thickness is easily controlled than the specification of the green LED, and hence, the chromaticity uniformity is better, the stability of the green color is easy to control, and the display quality is improved.
    Type: Application
    Filed: January 8, 2019
    Publication date: May 9, 2019
    Inventors: Lixuan Chen, Yungjui Lee
  • Patent number: 10209552
    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: Grant
    Filed: December 28, 2015
    Date of Patent: February 19, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Song Lan, Yungjui Lee, Ji Li, Xiaolong Ma
  • Publication number: 20190023988
    Abstract: A vertical alignment liquid crystal display includes a first substrate, a second substrate, a liquid crystal layer located between the first substrate and the second substrate, a first and a second passivation layers respectively located at inner sides of the first and the second substrates, a common electrode layer and a pixel electrode layer respectively located on the first and the second passivation layers. The liquid crystal layer includes liquid crystal molecules, auxiliary alignment agent and a polymer network penetrating the entire liquid crystal layer. The auxiliary alignment agent makes the liquid crystal molecules in the liquid crystal layer vertically aligned on the surfaces of the first and the second substrates. The polymer network stabilizes alignment of the liquid crystal molecules and enhances vertical alignment effect of the auxiliary alignment agent to the liquid crystal molecules.
    Type: Application
    Filed: September 12, 2018
    Publication date: January 24, 2019
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Xinhui ZHONG, Yungjui LEE