Patents by Inventor Baek-Kyun Jeon

Baek-Kyun Jeon 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: 10013945
    Abstract: Among data voltages applied to a plurality of pixels on a display panel, a first data voltage is shifted from a first original data voltage by a first value, a second data voltage is shifted from a second original data voltage by a second value, and a third data voltage is shifted from a third original data voltage by a third value to compensate for AC and DC afterimages. A common voltage generator provides an optimal common voltage for the third data voltage when the temperature of the liquid crystal panel assembly is lower than a reference temperature and provides an optimal common voltage for the first data voltage or the second data voltage when the temperature of the liquid crystal panel assembly is higher than or equal to the reference temperature. The first, second, and third values correspond to respective kickback voltages of the respective gray level data voltages.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: July 3, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Soo Jung, Suk Hoon Kang, Jong Hwan Jeon, In Ok Kim, Jun Woo Lee, Baek Kyun Jeon
  • Publication number: 20180130929
    Abstract: Provided are display device and method for fabricating the same. According to an aspect of the present disclosure, there is provided a display device comprising: a first substrate; at least one wavelength conversion layer disposed on the first substrate; a capping layer disposed on the wavelength conversion layer and comprising a porous layer; and a first polarizing layer disposed on the capping layer.
    Type: Application
    Filed: November 3, 2017
    Publication date: May 10, 2018
    Inventors: Young Gu KIM, Taek Joon LEE, Hye Lim JANG, Baek Kyun JEON, Jin Soo JUNG
  • Publication number: 20180127548
    Abstract: A photoalignment agent is provided. The photoalignment agent includes a copolymer of ii) at least one of a cyclobutanedianhydride (CBDA) and a cyclobutanedianhydride (CBDA) derivative, and ii) a diamine, and the diamine includes an electron donor group.
    Type: Application
    Filed: January 5, 2018
    Publication date: May 10, 2018
    Inventors: Suk Hoon KANG, Yeong Rong PARK, Mi Hwa LEE, Jun Woo LEE, Baek Kyun JEON
  • Patent number: 9952467
    Abstract: A liquid crystal display is provided. A photo-alignment layer thereof includes a polyimide and a crosslinker including an alkylene group (—CnH2n—, where n is a natural number) and a plurality of crosslinking end groups, wherein the plurality of crosslinking end groups include at least two types of end groups or end group derivatives, each type having a different available functional group.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: April 24, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Soo Jung, Suk Hoon Kang, Jong Hwan Jeon, In Ok Kim, Jun Woo Lee, Baek Kyun Jeon
  • Publication number: 20180107028
    Abstract: A display device including a first substrate, a pixel disposed on the first substrate and including first, second and third sub-pixel electrodes adjacent to each other, a second substrate spaced from the first substrate, a color conversion layer disposed on the second substrate and with a first wavelength conversion layer overlapping with the first sub pixel electrode and a second wavelength conversion layer overlapping with the second sub pixel electrode, a transmissive layer including a first sub-transmissive layer overlapping with the third sub-pixel electrode and a second sub-transmissive layer disposed between the first wavelength conversion layer and the second wavelength conversion layer, and a planarization layer disposed on the color conversion layer and the transmissive layer. Methods of manufacturing display devices having a flatter, planarization layer with reduced variations in thickness also is disclosed.
    Type: Application
    Filed: July 13, 2017
    Publication date: April 19, 2018
    Inventors: Jin Soo JUNG, Young Gu KIM, Taek Joon LEE, Hye Lim JANG, Baek Kyun JEON
  • Publication number: 20180095323
    Abstract: A display device includes a first substrate, a wavelength conversion layer disposed on the first substrate, an inorganic film disposed on the wavelength conversion layer, a flattening film disposed on the inorganic film, and a first polarizing layer disposed on the flattening film, where a difference between a coefficient of thermal expansion of the flattening film and a coefficient of thermal expansion of the inorganic film is about 50 ppm/K or less.
    Type: Application
    Filed: March 23, 2017
    Publication date: April 5, 2018
    Inventors: Young Gu KIM, Taek Joon LEE, Baek Kyun JEON, Jin Soo JUNG
  • Patent number: 9890249
    Abstract: A photoalignment agent is provided. The photoalignment agent includes a copolymer of ii) at least one of a cyclobutanedianhydride (CBDA) and a cyclobutanedianhydride (CBDA) derivative, and ii) a diamine, and the diamine includes an electron donor group.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: February 13, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Suk Hoon Kang, Yeong Rong Park, Mi Hwa Lee, Jun Woo Lee, Baek Kyun Jeon
  • Publication number: 20180033848
    Abstract: An organic light emitting diode (OLED) display includes a substrate, a thin film transistor on the substrate, an organic light emitting diode on the thin film transistor, and including a first electrode connected with the thin film transistor, and a black organic layer between the thin film transistor and the first electrode, and including a black protrusion spaced from the first electrode.
    Type: Application
    Filed: June 8, 2017
    Publication date: February 1, 2018
    Inventors: Jin-Soo Jung, Hyeok Jin Lee, Jun Woo Lee, Baek Kyun Jeon
  • Patent number: 9857634
    Abstract: A liquid crystal display includes a first substrate, a thin film transistor positioned on the first substrate, a first electrode connected to the thin film transistor, a second substrate facing the first substrate, a first alignment layer positioned on the first electrode and a second alignment layer positioned on the second substrate, and a liquid crystal layer positioned between the first substrate and the second substrate and including a liquid crystal molecule. At least one of the first alignment layer and the second alignment layer includes a copolymer of cyclobutanedianhydride (CBDA), a diamine, and a compound represented by Chemical Formula 2. In which X of Chemical Formula 2 represents —(CH2)m-O—(CH2)n—, and a sum of m and n is an odd number.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: January 2, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Bong Sung Seo, Suk Hoon Kang, Baek Kyun Jeon
  • Publication number: 20170371209
    Abstract: A photo alignment including a copolymer of a diamine and a dianhydride, wherein the copolymer includes a repeating unit including a first group derived from the diamine and a second group derived from the dianhydride, and wherein any one of the first group and the second group includes a photoreactive group and the other one of the first group and the second group includes at least one selected from a tert-butyl group, a tert-butoxy group, a tert-butyloxycarbonyl group, and a di-tert-butyloxycarbonyl group.
    Type: Application
    Filed: June 9, 2017
    Publication date: December 28, 2017
    Inventors: Jin-Soo JUNG, Suk Hoon KANG, Baek Kyun JEON
  • Publication number: 20170351146
    Abstract: A liquid crystal display includes: a first substrate, a second substrate overlapping the first substrate, a liquid crystal layer positioned between the first substrate and the second substrate and including a plurality of liquid crystal molecules, a first alignment layer positioned between the first substrate and the liquid crystal layer, a second alignment layer positioned between the second substrate and the liquid crystal layer, and a plurality of protrusions positioned at at least one of between the first alignment layer and the liquid crystal layer and between the second alignment layer and the liquid crystal layer, wherein at least one among the plurality of protrusions includes a polymer of a reactive mesogen, and the reactive mesogen is represented by Chemical Formula 1: Pa-A1-O?CH2?nO-A2-Pb??Chemical Formula 1
    Type: Application
    Filed: January 19, 2017
    Publication date: December 7, 2017
    Inventors: Hyeok Jin LEE, Oh Jeong KWON, Ka Eun KIM, Soo Dong KIM, Su Jin KIM, Jin Won KIM, Jae Bum CHO, Baek Kyun JEON
  • Patent number: 9829747
    Abstract: A liquid crystal display panel includes a first substrate, a second substrate, a first alignment layer, a second alignment layer and a liquid crystal layer. The second substrate faces the first substrate. The liquid crystal layer is disposed between the first alignment layer and the second alignment layer. The first alignment layer and the second alignment layer each include a polyimide compound polymerized by cyclobutane-1,2,3,4-tetracarboxylic dianhydride and cyclobutane-1,2,3,4-tetracarboxylic dianhydride derivative.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: November 28, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Suk-Hoon Kang, Yeong-Rong Park, Mi-Hwa Lee, Jun-Woo Lee, Bong-Sung Seo, Baek-Kyun Jeon
  • Patent number: 9809751
    Abstract: A liquid crystal photo-alignment agent includes a polyimide copolymer including a first structure unit represented by the described Chemical Formula 1 and a second structure unit represented by the described Chemical Formula 2, and, based on a 100 mole % sum total of the first structure unit and the second structure unit, the first structure unit is included in an amount of 70 to 95 mole % and the second structure unit is included in an amount of 5 to 30 mole %. A liquid crystal photo-alignment film may be manufactured using the same, and a liquid crystal display may include the liquid crystal photo-alignment film.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: November 7, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Suk Hoon Kang, Jin-Soo Jung, Jun Woo Lee, Jong Hwan Jeon, In Ok Kim, Baek Kyun Jeon
  • Publication number: 20170306235
    Abstract: An alignment layer composition including a copolymer of a dianhydride compound and a diamine compound, the copolymer including a repeating unit represented by chemical formula (1); and a repeating unit represented by chemical formula (2): wherein R1 is a tetravalent organic group derived from an alicyclic dianhydride or an aromatic dianhydride, and wherein R1 includes a phenyl ester group.
    Type: Application
    Filed: August 18, 2016
    Publication date: October 26, 2017
    Inventors: Jong Hwan JEON, Suk Hoon KANG, In Ok KIM, Baek Kyun JEON
  • Patent number: 9798190
    Abstract: A liquid crystal display including a first substrate, a thin film transistor disposed on the first substrate, a first electrode connected to the thin film transistor, and a first alignment layer disposed on the first electrode, wherein the first alignment layer includes polyimide and a capping group connected to a main chain end of the polyimide, and the capping group contains at least one of a first compound represented by the following Chemical Formula 1, and a second compound represented by the following Chemical Formula 2: A1 and A2 are, independently of each other, an aromatic compound having 4 to 20 carbon atoms or an aliphatic cyclic compound having 4 to 20 carbon atoms; and B1 and B2 are, independently of each other, a crosslinking reaction group containing an alkylene group (—CnH2n—, n is a natural number).
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: October 24, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun Woo Lee, Suk Hoon Kang, Jin-Soo Jung, Baek Kyun Jeon, Jong Hwan Jeon
  • Patent number: 9791783
    Abstract: An exposure apparatus including a substrate transporting unit configured to transport a substrate in a first direction, and including a first measuring part; and an exposure part disposed over the substrate transporting unit configured to irradiate the substrate with ultraviolet rays. The first measuring part is configured to measure an intensity of the ultraviolet rays before the substrate is irradiated.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: October 17, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Weon Hur, Hong-Yeon Lee, Baek-Kyun Jeon
  • Publication number: 20170283702
    Abstract: An alignment film composition includes a copolymer of a dianhydride-based compound and a diamine-based compound, and a cross-linker.
    Type: Application
    Filed: January 6, 2017
    Publication date: October 5, 2017
    Inventors: Suk Hoon KANG, Jong Hwan JEON, Jin Soo JUNG, In Ok KIM, Baek Kyun JEON
  • Patent number: 9758622
    Abstract: A photoalignment agent includes a polyimide and a capping terminal connected to a main chain end terminal of the polyimide. The capping terminal includes an alkylene group (—CmH2m—, m is a natural number) and a core stereo unit in a dendrimer format. A liquid crystal display includes a first substrate, a thin film transistor disposed on the first substrate, a first electrode connected to the thin film transistor, and a first alignment layer disposed on the first electrode. The first alignment layer includes a polyimide and a capping terminal connected to a main chain end terminal of the polyimide. The capping terminal includes an alkylene group (—CmH2m-, m is a natural number) and a core stereo unit in a dendrimer format.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: September 12, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Hwan Jeon, Suk Hoon Kang, Jin-Soo Jung, In Ok Kim, Jun Woo Lee, Baek Kyun Jeon
  • Patent number: 9753376
    Abstract: An exposure apparatus including a substrate transporting unit configured to transport a substrate in a first direction, and including a first measuring part; and an exposure part disposed over the substrate transporting unit configured to irradiate the substrate with ultraviolet rays. The first measuring part is configured to measure an intensity of the ultraviolet rays before the substrate is irradiated.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: September 5, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Weon Hur, Hong-Yeon Lee, Baek-Kyun Jeon
  • Publication number: 20170205668
    Abstract: A liquid crystal display device includes a substrate including a display area in which display pixels are arranged in a row direction and a column direction, a first dummy area, which is adjacent to a first side, in the row direction, of the display area, and a second dummy area, which is adjacent to a second side, in the row direction, of the display area, pixel electrodes on the substrate, the pixel electrodes including display pixel electrodes, which are respectively disposed in the display pixels, first dummy pixel electrodes, which are disposed in the first dummy area in the column direction, and second dummy pixel electrodes, which are disposed in the second dummy area in the column direction, and an alignment layer disposed on the pixel electrodes, where an average thickness of the alignment layer is larger in the first and second dummy areas than in the display area.
    Type: Application
    Filed: August 5, 2016
    Publication date: July 20, 2017
    Inventors: Young Gu KIM, Kyung Ho PARK, Su Ji PARK, Baek Kyun JEON, Min Sik JUNG