Patents by Inventor Min-Oh Choi

Min-Oh Choi 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: 9746708
    Abstract: A liquid crystal display panel includes a first base substrate, a wire grid polarizer disposed on the first base substrate, a lyotropic chromonic liquid crystal polarizer disposed on the first base substrate, a second base substrate facing the first base substrate and a liquid crystal layer between the first base substrate and the second base substrate.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: August 29, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyeong-Ha Kim, Sang-Jae Kim, Hyoung-Joo Lee, Teck-Soo Kim, Min-Oh Choi, Seung-Beom Park
  • Patent number: 9348075
    Abstract: A method of manufacturing a polarizing plate includes fabricating a base film, dyeing the base film by using iodine, stretching the base film to form a polarizing film, firstly drying the polarizing film at a first temperature, and secondly drying the polarizing film while sequentially increasing a temperature from the first temperature to a second temperature higher than the first temperature. The polarizing plate and a liquid crystal display including the same are manufactured through the above method.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: May 24, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Duckjong Suh, Jeonguk Heo, Hee Wook Do, Jung-Hun Lee, Boo-Kan Ki, Min Oh Choi, Sang-Gu Lee
  • Publication number: 20150268509
    Abstract: A liquid crystal display includes: a liquid crystal panel which displays an image on a surface thereof; two polarizing films disposed on opposing surfaces of the liquid crystal panel, respectively; two compensation films disposed between the liquid crystal panel and the two polarizing films, respectively; two protective films disposed on outer surfaces of the two polarizing films, respectively, and an anti-glare layer disposed on the two protective film in a direction of displaying the image.
    Type: Application
    Filed: January 22, 2015
    Publication date: September 24, 2015
    Inventors: Kyeongha KIM, Min Oh CHOI, Boo-Kan KI, Hee Wook DO, SEUNGBEOM PARK, YongHwan SHIN
  • Patent number: 9116392
    Abstract: A liquid crystal display including a twisted nematic liquid crystal panel and first and second substrates with the twisted nematic liquid crystal panel arranged therebetween. A first biaxial retardation compensation film faces the first substrate and a second biaxial retardation compensation film faces the first biaxial retardation compensation film with the twisted nematic liquid crystal panel arranged therebetween.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: August 25, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min Oh Choi, Hee Wook Do, Duckjong Suh
  • Publication number: 20150234229
    Abstract: A liquid crystal display panel includes a first base substrate, a wire grid polarizer disposed on the first base substrate, a lyotropic chromonic liquid crystal polarizer disposed on the first base substrate, a second base substrate facing the first base substrate and a liquid crystal layer between the first base substrate and the second base substrate.
    Type: Application
    Filed: July 3, 2014
    Publication date: August 20, 2015
    Inventors: Kyeong-Ha KIM, Sang-Jae KIM, Hyoung-Joo LEE, Teck-Soo KIM, Min-Oh CHOI, Seung-Beom PARK
  • Patent number: 9052441
    Abstract: Disclosed is a dual layer prism sheet including two patterned prism sheets adhered to each other with an adhesive layer interposed therebetween. The adhesive layer includes a polymeric adhesive and a lubricant. A liquid crystal display including the dual layer prism sheet is also disclosed. Each pattern on the prism sheet is arranged to make a predetermined angle with a liquid crystal panel.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: June 9, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Hwan Hong, Jeong-Uk Heo, Ho-Yun Byun, Boo-Kan Ki, Min-Oh Choi
  • Publication number: 20150124201
    Abstract: A liquid crystal display comprises a liquid crystal panel, a polarizing film provided on at least one surface of the liquid crystal film and having a polarizing axis, and a compensation film provided between the liquid crystal panel and the polarizing plate.
    Type: Application
    Filed: May 8, 2014
    Publication date: May 7, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Boo-Kan KI, Kyeongha KIM, Min Oh CHOI, Seungbeom PARK, YongHwan SHIN
  • Patent number: 9019438
    Abstract: A 3D image display apparatus featuring a new polarization system is introduced which minimizes crosstalk between stereoimages. The polarization system includes a shutter panel that shifts the phase of an incident light, a polarizing film disposed between the shutter panel and an observer, a first retardation film disposed between the shutter panel and the polarizing film, a second retardation film disposed between the polarizing film and the first retardation film to correspond to the left eye of the observer, and a third retardation film disposed between the polarizing film and the first retardation film to correspond to the right eye of the observer.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: April 28, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Gu Lee, Hee Wook Do, Tecksoo Kim, Seungbeom Park, DuckJong Suh, Min Oh Choi
  • Patent number: 9001283
    Abstract: Provided is a shutter panel including a first substrate on which a plurality of electric field forming electrodes are parallel to each other, a second substrate opposed to the first substrate, and a liquid crystal layer disposed on the first and second substrates. Each of the electric field forming electrodes has both side surfaces facing the adjacent electric field forming electrodes, and both side surfaces are provided with protrusion parts protruding toward the adjacent electric field forming electrodes.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: April 7, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min Oh Choi, Hee Wook Do, Seungbeom Park, Sang-Gu Lee, Seunghan Jo
  • Publication number: 20150085227
    Abstract: A display crystal display includes a liquid crystal display panel, a polarizing plate disposed on at least one surface of the liquid crystal display panel, and a retardation layer disposed between the liquid crystal display panel and the polarizing plate.
    Type: Application
    Filed: April 16, 2014
    Publication date: March 26, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Min Oh CHOI, Boo-Kan KI, Kyeongha KIM, Seungbeom PARK, YongHwan SHIN
  • Patent number: 8958034
    Abstract: A liquid crystal display includes a liquid crystal panel, a polarizing plate on a surface of the liquid crystal panel and having a polarizing axis; and a compensation film between the liquid crystal panel and the polarizing plate, and having an optical axis at which light passes through the compensation film. When a surface of the compensation film is referred to as a x-y plane, a plane passing through an x-axis and vertical to the optical axis of the compensation film is referred to as an x-y? plane. A first retardation value (Ro?) of the compensation film is (nx?ny?)d, and a second retardation value (Rth?) is [(nx+ny?)/2?nz?]d, and the first and second retardation values (Ro?) and (Rth?) satisfy the following Formula of 0.92?Rth?/Ro??4.75, where ‘n’ denotes a refractive index and ‘d’ denotes a thickness of the compensation film in a z-axis direction.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: February 17, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min Oh Choi, Hee Wook Do, Kyeongha Kim, Duckjong Suh, Tecksoo Kim, Seungbeom Park, Sang-Gu Lee
  • Patent number: 8836874
    Abstract: A three-dimensional image display apparatus includes a display panel configured to display an image and a shutter panel configured to separate the image into a left-eye image and a right-eye image. The shutter panel includes a first thin-film substrate disposed adjacent to the display panel, a second thin-film substrate facing the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The first substrate is disposed between the second substrate and the display panel.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: September 16, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee Wook Do, Seungbeom Park, Duckjong Suh, Sang-Gu Lee, Jieun Jang, Min Oh Choi
  • Publication number: 20140198282
    Abstract: A polarizer includes a polyvinyl alcohol (PVA) layer, a supporting layer, and a compensation layer. The supporting layer is disposed on the PVA layer. The supporting layer includes a cyclic olefin polymer (COP). The compensation layer is disposed on the supporting layer. The compensation layer includes discotic liquid crystal. The refractive index of the supporting layer is between 1.49 and 1.55. The refractive index of the compensation layer is between 1.50 and 1.60.
    Type: Application
    Filed: December 13, 2013
    Publication date: July 17, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Min Oh CHOI, Hee Wook DO, Boo-Kan KI, Kyeong Ha KIM, Teck Soo KIM, Sang-Gu LEE
  • Publication number: 20140125924
    Abstract: A liquid crystal display includes a liquid crystal panel, a polarizing plate on a surface of the liquid crystal panel and having a polarizing axis; and a compensation film between the liquid crystal panel and the polarizing plate, and having an optical axis at which light passes through the compensation film. When a surface of the compensation film is referred to as a x-y plane, a plane passing through an x-axis and vertical to the optical axis of the compensation film is referred to as an x-y? plane. A first retardation value (Ro?) of the compensation film is (nx?ny?)d, and a second retardation value (Rth?) is [(nx+ny?)/2?nz?]d, and the first and second retardation values (Ro?) and (Rth?) satisfy the following Formula of 0.92?Rth?/Ro??4.75, where ‘n’ denotes a refractive index and ‘d’ denotes a thickness of the compensation film in a z-axis direction.
    Type: Application
    Filed: April 5, 2013
    Publication date: May 8, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Min Oh CHOI, Hee Wook DO, Kyeongha KIM, Duckjong SUH, Tecksoo KIM, Seungbeom PARK, Sang-Gu LEE
  • Publication number: 20130229605
    Abstract: A compensation film for a liquid crystal display having a characteristic that R0 is about 40 nm-60 nm, Rth is about 140 nm-170 nm, ? is about 15°-19°, and the supporting film of the compensation film has a positive dispersion characteristic with respect to the wavelength.
    Type: Application
    Filed: July 2, 2012
    Publication date: September 5, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hee Wook DO, Min Oh CHOI, Sang-Gu LEE, Teck Soo KIM, Duck Jong SUH, Min Hwa LEE, Hyoung Joo LEE
  • Publication number: 20130141654
    Abstract: A 3D image display apparatus featuring a new polarization system is introduced which minimizes crosstalk between stereoimages. The polarization system includes a shutter panel that shifts the phase of an incident light, a polarizing film disposed between the shutter panel and an observer, a first retardation film disposed between the shutter panel and the polarizing film, a second retardation film disposed between the polarizing film and the first retardation film to correspond to the left eye of the observer, and a third retardation film disposed between the polarizing film and the first retardation film to correspond to the right eye of the observer.
    Type: Application
    Filed: May 4, 2012
    Publication date: June 6, 2013
    Inventors: Sang-Gu LEE, Hee Wook Do, Tecksoo Kim, Seungbeom Park, Duck Jong Suh, Min Oh Choi
  • Publication number: 20130050597
    Abstract: A three-dimensional image display apparatus includes a display panel configured to display an image and a shutter panel configured to separate the image into a left-eye image and a right-eye image. The shutter panel includes a first thin-film substrate disposed adjacent to the display panel, a second thin-film substrate facing the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The first substrate is disposed between the second substrate and the display panel.
    Type: Application
    Filed: July 6, 2012
    Publication date: February 28, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee Wook DO, Seungbeom PARK, Duckjong SUH, Sang-Gu LEE, Jieun JANG, Min Oh CHOI
  • Publication number: 20130021562
    Abstract: A liquid crystal display including a twisted nematic liquid crystal panel and first and second substrates with the twisted nematic liquid crystal panel arranged therebetween. A first biaxial retardation compensation film faces the first substrate and a second biaxial retardation compensation film faces the first biaxial retardation compensation film with the twisted nematic liquid crystal panel arranged therebetween.
    Type: Application
    Filed: April 2, 2012
    Publication date: January 24, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min Oh CHOI, Hee Wook DO, Duckjong SUH
  • Publication number: 20130010359
    Abstract: A polarization system including a first polarization film, a second polarization film, and a first retardation film disposed between the first and second polarization films. The first polarization film is disposed between a user and a light irradiator and the second polarization film is disposed between the first polarization film and the light irradiator. In addition, the first retardation film retards a phase of the light passing through the first polarization film. Thus, the polarization system allows the user to watch a 3D image without being related to the user's posture. A second retardation film may also be disposed between the first polarization film and the first retardation film.
    Type: Application
    Filed: March 27, 2012
    Publication date: January 10, 2013
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hee Wook DO, Seungbeom Park, Duckjong Suh, Sang-Gu Lee, Yongkyu Jang, Min Oh Choi
  • Publication number: 20120249939
    Abstract: A liquid crystal device includes a twisted nematic liquid crystal panel and first and second retardation films disposed on the top and bottom sides of the twisted nematic liquid crystal panel. A retardation compensation range angle between an axis of the first retardation film and an axis of the second retardation film is smaller than a twist range angle between a first twist axis representing the average of twist angles of lower liquid crystals and a second twist axis representing the average of twist angles of upper liquid crystals in a plan view of the liquid crystal display device.
    Type: Application
    Filed: January 17, 2012
    Publication date: October 4, 2012
    Inventors: Hee Wook DO, Duckjong Suh, Jung-Hun Lee, Boo-Kan Ki, Min Oh Choi, Sang-Gu Lee