Patents by Inventor Dong Yoon Shin

Dong Yoon Shin 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: 9590189
    Abstract: Provided are a host material for a blue phosphor, and an organic thin film and an organic light-emitting device including the same. The host material for a blue phosphor is such that a carbazole compound is bonded around a central atom, wherein the central atom is a Group 14 element, and the carbazole compound bonded around the central atom is 3 or 4, wherein the carbazole compound. includes carbazole in which an alkyl group is substituted The host material for a blue phosphor has high triplet energy (ET) and excellent electrical mobility and thermal stability. As a result, the organic thin film, which includes the host material, and the organic light-emitting device, which includes the organic thin film, implement a deep blue color and have excellent luminous efficiency.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: March 7, 2017
    Assignee: Youl Chon Chemical Co., Ltd.
    Inventor: Dong Yoon Shin
  • Publication number: 20160209568
    Abstract: The present invention relates to a polarizing plate including a polarizer and a polyester film formed on an upper side of the polarizer, wherein the polyester film has a maximum thermal shrink angle of about 10° or less, and any one of a refractive index of x-axis direction nx at a wavelength of 550 nm and a refractive index of y-axis direction ny at a wavelength of 550 nm of about 1.65 or more; a method of preparing the polarizing plate; and a liquid crystal display apparatus comprising the polarizing plate.
    Type: Application
    Filed: August 12, 2014
    Publication date: July 21, 2016
    Inventors: Kwang Ho Shin, Eun Su Park, Dong Yoon Shin, Hae Ryong Chung
  • Patent number: 9383494
    Abstract: A polarizing plate includes a polarizer and at least one protective film on at least one side of the polarizer. The protective film has an in-plane retardation (Re) of greater than about 10,000 nm at a wavelength of 550 nm, as calculated by Re=(nx?ny)×d, wherein nx and ny are indexes of refraction in x-axis and y-axis directions of the protective film, respectively, and d is a thickness of the protective film.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: July 5, 2016
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Kwang Ho Shin, Dong Yoon Shin, Eun Su Park, Hae Ryong Chung, Eun Kyeong Seo
  • Patent number: 9358768
    Abstract: A polarizing plate, a method of preparing the same and a liquid crystal display apparatus including the same are disclosed. The polarizing plate includes a polarizer and a polyester film formed on a surface of the polarizer, wherein the polyester film has a ratio of an elongation ratio in a machine direction to an elongation ratio in a transverse direction of about 1:0.8 to about 1:1.2, an in-plane retardation (Re) of about 500 nm or less at a wavelength of 550 nm, and an out-of-plane retardation (Rth) of about 10,000 nm or less at a wavelength of 550 nm.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: June 7, 2016
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Kwang Ho Shin, Eun Su Park, Dong Yoon Shin, Jong Hyuk Eun, Hae Ryong Chung, Ae Kyoung Kim, Han Saem Kang, Han Su Kim, A Ra Jo
  • Publication number: 20160146980
    Abstract: A polarizing plate and a liquid crystal display including the polarizing plate include: a polarizer; and a surface protective film on a first surface of the polarizer, and the surface protective film includes a first protective film on the first surface of the polarizer, and a primer layer on at least one surface of the first protective film, a refractive index ratio of the first protective film to the primer layer satisfying the equation: 0.6<R1/R2<1.0, where R1 is an index of refraction of the primer layer, and R2 is an index of refraction of the first protective film, and the first protective film has an in-plane retardation (Re) of about 500 nm or less and an out-of-plane retardation (Rth) of about 10,000 nm or less at a wavelength of 550 nm.
    Type: Application
    Filed: November 25, 2015
    Publication date: May 26, 2016
    Inventors: Kwang Ho SHIN, Eun Su PARK, Dong Yoon SHIN
  • Patent number: 9291850
    Abstract: A polarizing plate includes a polarizer, a retardation film on a first side (e.g., a lower side) of the polarizer, and a protective film on a second side (e.g., an upper side) of the polarizer. The retardation film has an axis distortion angle between a fast axis of the retardation film and an absorption axis of the polarizer of about +0.03° to less than +0.2°. The protective film has an in-plane phase difference (Ro) of greater than about 10,000 nm and about 15,000 nm or less at a wavelength of 550 nm. A liquid crystal display apparatus includes the polarizing plate.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: March 22, 2016
    Assignee: CHEIL INDUSTRIES INC.
    Inventors: Ae Kyoung Kim, Han Saem Kang, Han Su Kim, Dong Yoon Shin, A Ra Jo, Hae Ryong Chung
  • Publication number: 20160062011
    Abstract: A polarizing plate includes a polarizer and a polyester film formed on an upper side of the polarizer. The polyester film has a ratio of MD elongation to TD elongation of about 1:6 to about 1:30. An angle between the transmission axis of the polarizer and the TD of the polyester film ranges from about ?7° to about +7°. In some embodiments, a liquid crystal display includes the polarizing plate. The polarizing plate and the liquid crystal display can reduce the occurrence of rainbow spots, realize a high degree of polarization, and exhibit little variation in the retardation and dimensions under high temperature/high humidity conditions.
    Type: Application
    Filed: August 27, 2015
    Publication date: March 3, 2016
    Inventors: Kwang Ho Shin, Dong Yoon Shin, Yeon Ju Jung, Hae Ryong Chung
  • Publication number: 20160062012
    Abstract: A polarizing plate includes a polarizer, and a polyester film formed on one or both surfaces of the polarizer. The polyester film has a tensile strength ratio of about 3 or greater, as calculated by Equation 4, and an orientation displacement (°) of about ?5° to about +5° with respect to a transverse direction (slow axis) of the polyester film at a wavelength of 550 nm. A liquid crystal display apparatus includes the polarizing plate. Tensile strength ratio=TD tensile strength/MD tensile strength.
    Type: Application
    Filed: September 1, 2015
    Publication date: March 3, 2016
    Inventors: Kwang Ho Shin, Eun Su Park, Dong Yoon Shin, Hae Ryong Chung
  • Publication number: 20160026022
    Abstract: An LCD module includes an LCD panel, and a polarizing plate formed on each of the upper and lower surfaces of the LCD panel. The polarizing plate includes a polarizer and a polyester film formed on at least one surface of the polarizer. The polyester film has a difference between the index of refraction in the x-axis direction and the index of refraction in the z-axis direction (nx?nz) of about 0.1 to about 0.18, where nx and nz are the indices of refraction in the x-axis and z-axis directions, respectively, at a wavelength of 550 nm. The LCD module has a CR 45° and a CR 135° of about 1.0% or greater.
    Type: Application
    Filed: July 10, 2015
    Publication date: January 28, 2016
    Inventors: Yeon Ju Jung, Ae Kyoung Kim, Han Su Kim, Kwang Ho Shin, Dong Yoon Shin
  • Publication number: 20160018564
    Abstract: A polarizing plate includes a polarizer and a polyester film formed on at least one surface of the polarizer. The polyester film includes a polyester base film and a primer layer formed on at least one surface of the polyester base film. The polyester film contains about 0.1 wt % to about 5 wt % of a UV absorbent. In addition, a liquid crystal display includes the polarizing plate. A method of fabricating a polarizing plate includes preparing a multilayer film containing about 0.1 wt % to about 5 wt % of a UV absorbent, stretching the multilayer film to about 2 to about 10 times its initial length in a transverse direction (TD) to prepare a polyester film, and attaching the polyester film to at least one surface of a polarizer. The multilayer film comprises a polyester base film and a primer layer on at least one surface of the polyester base film.
    Type: Application
    Filed: July 20, 2015
    Publication date: January 21, 2016
    Inventors: Kwang Ho Shin, Eun Su Park, Dong Yoon Shin, Hae Ryong Chung
  • Patent number: 9187672
    Abstract: A hard coating film may include a cured product of a polyester polyol modified hyperbranched (meth)acrylate represented by Formula 1:
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: November 17, 2015
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Sang Shin Kim, Dong Yoon Shin, Hae Ryong Chung
  • Patent number: 9081145
    Abstract: A polarizing plate includes a polarizer, a first protective film attached to one side of the polarizer, and a second protective film attached to another side of the polarizer. A ratio between coefficients of thermal expansion of the first and second protective films, measured in a transverse direction (TD) at a temperature from about 25° C. to about 120° C., ranges from about 0.5 to about 2. A ratio between coefficients of thermal expansion of the first and second protective films measured in a machine direction (MD) at a temperature from about 25° C. to about 120° C. ranges from about 0.5 to about 2.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: July 14, 2015
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Eun Su Park, Kwang Ho Shin, Dong Yoon Shin, Eun Kyeong Seo, Hae Ryong Chung
  • Patent number: 8932688
    Abstract: A polarizing plate includes a polarizer; and a protective film attached to at least one side of the polarizer via an adhesive layer. The adhesive layer is formed of a water-based adhesive including a polyvinyl alcohol resin, a zirconium compound, and an imine crosslinking agent. The polarizing plate has a variation in light transmittance (|B?A|) from 0% to about 0.25% at wavelengths from 400 nm to 780 nm, where A is an average value of initial light transmittance of the polarizing plate at wavelengths from 400 nm to 780 nm, and B is an average value of light transmittance of the polarizing plate at wavelengths from 400 nm to 780 nm measured after the polarizing plate has been dipped in water of 25° C. for 3 hours, followed by drying at 25° C. for 2 hours.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: January 13, 2015
    Assignee: Cheil Industries, Inc.
    Inventors: Eun Kyeong Seo, Dong Yoon Shin, Ae Kyoung Kim, A Ra Jo, So Hee Yu, Il Woong Baek, Min Jung Kim, Hae Ryong Chung
  • Publication number: 20140293197
    Abstract: A protective film for a polarizing plate includes a base film and a primer layer on one or both sides of the base film. The protective film has a transmittance of about 90% or greater at a wavelength of 550 nm, and a ratio of the refractive index (B) of the primer layer to the refractive index (A) of the base film of about 0.6 to about 1.0. The protective film exhibits good adhesiveness to the polarizer and improves the transmittance of the polarizing plate. A polarizing plate including the same, and a liquid crystal display including the same are also disclosed.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 2, 2014
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Kwang Ho Shin, Eun Su Park, Dong Yoon Shin, Hae Ryong Chung
  • Publication number: 20140231786
    Abstract: Disclosed is a blue phosphorescent organic light emitting device having a minimal lamination structure. The device includes an anode; an emitting layer formed on the anode and including a host and a dopant; an electron transport layer formed on the emitting layer; and a cathode formed on the electron transport layer. A difference between a work function of the anode and a high occupied molecular orbital (HOMO) energy level of the emitting layer is less than 1.0 eV, and a difference between a low occupied molecular orbital (LUMO) energy level of the emitting layer and an LUMO energy level of the electron transport layer is less than 1.0 eV.
    Type: Application
    Filed: June 29, 2012
    Publication date: August 21, 2014
    Applicant: YOUL CHON CHEMICAL CO., LTD.
    Inventor: Dong Yoon Shin
  • Publication number: 20140178706
    Abstract: A polarizing plate comprises a polarizer; and at least one optical film on at least one side of the polarizer, wherein the optical film comprises a polyester film, the polyester film has a shrinkage difference between a length shrinkage in a first diagonal direction and a length shrinkage in a second diagonal direction of ?0.1% to +0.1% with respect to either the mechanical direction (MD) or the transverse direction (TD) of the polyester film (as a reference direction). An optical display apparatus includes the polarizing plate.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 26, 2014
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Eun Su Park, Dong Yoon Shin, Pil Joo Kim, Kwang Ho Shin, Hae Ryong Chung
  • Publication number: 20140168757
    Abstract: An anti-glare film and a method of fabricating the same. The anti-glare film includes a transparent substrate, a photocurable resin layer stacked on one surface of the transparent substrate, and a plurality of amorphous patterns formed on a surface of the photocurable resin layer. The anti-glare film can provide excellent diffusion of light, exhibit excellent brightness without deterioration of transmittance, and provide excellent front brightness and visibility when applied to polarizing plates and display devices.
    Type: Application
    Filed: December 13, 2013
    Publication date: June 19, 2014
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Jin Woo Kim, Chul Jin Park, Dong Yoon Shin, Je Ha Woo, Jong Hyuk Eun, A Ra Jo
  • Publication number: 20140168767
    Abstract: A polarizing plate, a method of preparing the same and a liquid crystal display apparatus including the same are disclosed. The polarizing plate includes a polarizer and a polyester film formed on a surface of the polarizer, wherein the polyester film has a ratio of an elongation ratio in a machine direction to an elongation ratio in a transverse direction of about 1:0.8 to about 1:1.2, an in-plane retardation (Re) of about 500 nm or less at a wavelength of 550 nm, and an out-of-plane retardation (Rth) of about 10,000 nm or less at a wavelength of 550 nm.
    Type: Application
    Filed: December 16, 2013
    Publication date: June 19, 2014
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Kwang Ho Shin, Eun Su Park, Dong Yoon Shin, Jong Hyuk Eun, Hae Ryong Chung, Ae Kyoung Kim, Han Saem Kang, Han Su Kim, A Ra Jo
  • Publication number: 20140168579
    Abstract: A polarizing plate includes a polarizer, a retardation film on a first side (e.g., a lower side) of the polarizer, and a protective film on a second side (e.g., an upper side) of the polarizer. The retardation film has an axis distortion angle between a fast axis of the retardation film and an absorption axis of the polarizer of about +0.03° to less than +0.2°. The protective film has an in-plane phase difference (Ro) of greater than about 10,000 nm and about 15,000 nm or less at a wavelength of 550 nm. A liquid crystal display apparatus includes the polarizing plate.
    Type: Application
    Filed: December 16, 2013
    Publication date: June 19, 2014
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Ae Kyoung Kim, Han Saem Kang, Han Su Kim, Dong Yoon Shin, A Ra Jo, Hae Ryong Chung
  • Publication number: 20140159027
    Abstract: Provided are a host material for a blue phosphor, and an organic thin film and an organic light-emitting device including the same. The host material for a blue phosphor is such that a carbazole compound is bonded around a central atom, wherein the central atom is a Group 14 element, and the carbazole compound bonded around the central atom is 3 or 4, wherein the carbazole compound includes carbazole in which an alkyl group is substituted. The host material for a blue phosphor has high triplet energy (ET) and excellent electrical mobility and thermal stability. As a result, the organic thin film, which includes the host material, and the organic light-emitting device, which includes the organic thin film, implement a deep blue color and have excellent luminous efficiency.
    Type: Application
    Filed: July 13, 2012
    Publication date: June 12, 2014
    Applicant: YOUL CHON CHEMICAL CO., LTD.
    Inventor: Dong Yoon Shin