Patents by Inventor Sang-Jin Jeon

Sang-Jin 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: 11023201
    Abstract: An electronic device is provided. The electronic device includes a housing, a touchscreen display exposed through a first portion of the housing, a microphone disposed at a second portion of the housing, a speaker disposed at a third portion of the housing, a memory disposed inside the housing, a processor disposed inside the housing, and electrically connected to the display, the microphone, the speaker, and the memory. The memory is configured to store a plurality of application programs, each of which includes a graphic user interface (GUI).
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: June 1, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: In Jong Rhee, Ji Min Lee, Sang Ki Kang, Han Jun Ku, Sung Pa Park, Jang Seok Seo, In Wook Song, Won Ick Ahn, Kyoung Gu Woo, Ji Soo Yi, Chang Kyun Jeon, Ho Jun Jaygarl, Il Hwan Choi, Yoo Jin Hong, Ji Hyun Kim, Jae Yung Yeo
  • Publication number: 20210159302
    Abstract: A display device includes a display panel and a signal transmission film including a first extension portion, a second extension portion, and a first dummy pattern. The signal transmission film is connected to one side of the display panel. The first extension portion extends in a first direction, and a first contact hole is formed at a first side of the first extension portion. The second extension portion extends from the first side of the first extension portion in a second direction which is different from the first direction. The first dummy pattern is disposed adjacent to the first contact hole at the first side.
    Type: Application
    Filed: September 3, 2020
    Publication date: May 27, 2021
    Inventors: Sang Kyu CHOI, Su Jin JUNG, Yeong Bong KANG, Seong Sik AHN, Ki Chang LEE, Min Hyuk IM, Myoung-Ha JEON
  • Patent number: 11004376
    Abstract: A scan driver for a display device includes scan signal output circuits connected to each other through scan lines. Each scan signal output circuit includes: a drive circuit to apply a first drive signal to a first drive node, to apply a second drive signal to a second drive node, and to apply a connection signal to a connection signal output node based on i) an input signal which is one of either a scan start signal or a scan signal applied by another scan signal output circuit, ii) a clock signal, and iii) an on-level voltage; and a buffer circuit to receive the connection signal, the first drive signal, and the second drive signal from the drive circuit, and to output one of scan signals to one of the scan lines based on the first drive signal, the second drive signal, and the clock signal.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: May 11, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yang Hwa Choi, Sun Kwang Kim, Sang Jin Jeon
  • Patent number: 10976229
    Abstract: The present invention relates to a method for predicting the break-up possibility of a synthetic resin filament in a melt blowing process from the rheological properties of the synthetic resin. According to the present invention, a method that is capable of predicting the break-up possibility of the synthetic resin filament in the melt blowing process for preparing a filament using the synthetic resin in advance, through the measurement of the rheological properties of the synthetic resin, is provided.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: April 13, 2021
    Inventors: Hyun Sup Lee, Ki Soo Lee, Sang Jin Jeon, Sang Eun An, Myung Han Lee, Hee Kwang Park, Sang Eun Kim, Sang Hoon Lee
  • Publication number: 20210074786
    Abstract: A display device includes a substrate; an active pattern disposed on the substrate; a first insulating layer; a first conductive layer disposed on the first insulating layer and having a driving gate electrode; a second insulating layer; a second conductive layer disposed on the second insulating layer and having a first storage electrode; a third insulating layer; a third conductive layer disposed on the third insulating layer and having a second storage electrode; and a light-emitting element disposed on the third conductive layer, wherein the second storage electrode overlaps the first storage electrode via the third insulating layer to form a first capacitor, the first storage electrode overlaps the driving gate electrode via the second insulating layer to form a second capacitor, and the driving gate electrode, the first storage electrode, and the second storage electrode at least partially overlap each other.
    Type: Application
    Filed: November 20, 2020
    Publication date: March 11, 2021
    Inventors: Sang Jin Jeon, Cheol-Gon Lee, Sang-Uk Lim
  • Patent number: 10906998
    Abstract: The polypropylene copolymer according to the present invention has a low melting point and also is excellent in the low temperature heat sealing effect, transparency and strength, and the film prepared therefrom can be effectively used as a sealing layer of the non-stretched polypropylene-based film.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: February 2, 2021
    Assignee: LG Chem, Ltd.
    Inventors: Kyung Seop Noh, Ji Ho Choi, Churl Young Park, Ki Soo Lee, Sang Jin Jeon, Hee Kwang Park, Won-Sang Lee, Ah Young Seo
  • Patent number: 10889667
    Abstract: The present invention relates to a polypropylene having excellent stiffness and achieving energy reduction during foaming.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: January 12, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Jin Hyun Park, Ji Ho Choi, Kyung Seop Noh, Sang Jin Jeon, Sang Eun An, Ra Yun Choi, In Sun Lee
  • Publication number: 20200410934
    Abstract: An OLED display device includes a pixel having a switching transistor turned on by a scan signal received from a scan line and which transmits a data signal received from a data line to a first node, a driving transistor connected between the first node and a second node and through which a driving current corresponding to the data signal flows, a storage capacitor including one end connected to a power supply and another end connected to a gate electrode of the driving transistor, an OLED emitting light by the driving current, and a light emission control transistor connected between the second node and an anode of the OLED and which is turned on by an light emission control signal and transmits the driving current to the OLED. The switching transistor may be an n-type transistor, and the light emission control transistor is a p-type transistor.
    Type: Application
    Filed: September 14, 2020
    Publication date: December 31, 2020
    Inventors: Sang Jin JEON, Sang-Uk LIM
  • Patent number: 10847595
    Abstract: A display device includes a substrate; an active pattern disposed on the substrate; a first insulating layer; a first conductive layer disposed on the first insulating layer and having a driving gate electrode; a second insulating layer; a second conductive layer disposed on the second insulating layer and having a first storage electrode; a third insulating layer; a third conductive layer disposed on the third insulating layer and having a second storage electrode; and a light-emitting element disposed on the third conductive layer, wherein the second storage electrode overlaps the first storage electrode via the third insulating layer to form a first capacitor, the first storage electrode overlaps the driving gate electrode via the second insulating layer to form a second capacitor, and the driving gate electrode, the first storage electrode, and the second storage electrode at least partially overlap each other.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: November 24, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Jin Jeon, Cheol-Gon Lee, Sang-Uk Lim
  • Patent number: 10815322
    Abstract: The present invention relates to a supported metallocene catalyst including a novel single metallocene compound having excellent polymerization activity, and a process for producing a polypropylene having excellent processability and broad molecular weight distribution using the same.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: October 27, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Jong Woo Park, Hye Kyung Lee, Byung Seok Kim, Sang Jin Jeon, Jae Youp Cheong, Hee Kwang Park
  • Patent number: 10777133
    Abstract: An OLED display device includes a pixel having a switching transistor turned on by a scan signal received from a scan line and which transmits a data signal received from a data line to a first node, a driving transistor connected between the first node and a second node and through which a driving current corresponding to the data signal flows, a storage capacitor including one end connected to a power supply and another end connected to a gate electrode of the driving transistor, an OLED emitting light by the driving current, and a light emission control transistor connected between the second node and an anode of the OLED and which is turned on by an light emission control signal and transmits the driving current to the OLED. The switching transistor may be an n-type transistor, and the light emission control transistor is a p-type transistor.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: September 15, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Jin Jeon, Sang-Uk Lim
  • Publication number: 20200258446
    Abstract: A scan driver includes two or more scan signal output circuits (SSOC), each being coupled to a first scan line (FSL) and a second scan line (SSL), and including a driving circuit, a first buffer circuit (FBC), and a second buffer circuit (SBC). The driving circuit applies a first driving signal (DS) to a first driving node (DN) and applies a second DS to a second DN based on an input signal, a clock signal (CS), a display-on signal, and an on-level voltage. The input signal is a scan start signal or a previous scan signal. The FBC outputs a sensing signal to the SSL based on the first DS, the second DS, an off-level voltage, and a sensing CS. The SBC outputs a scan signal to the FSL based on the first DS, the second DS, the off-level voltage, and a scan CS.
    Type: Application
    Filed: February 4, 2020
    Publication date: August 13, 2020
    Inventors: Yang Hwa CHOI, Sun Kwang KIM, Sang Jin JEON
  • Publication number: 20200239609
    Abstract: The present invention relates to homopolypropylene resin for non-woven fabric, and according to the present invention, by optimizing tacticity to 80% to 90%, having narrow molecular weight distribution of 2.4 or less, and fulfilling melt index of 20 g/10 min to 30 g/10 min, melting point of 145° C. or less, and residual stress rate of 0.05% or less, thereby optimizing modulus, high strength non-woven fabric that is softer than the existing products, and is not easily torn due to high tenacity, can be prepared.
    Type: Application
    Filed: November 8, 2018
    Publication date: July 30, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Hee Kwang Park, Byung Seok Kim, Kyung Seop Noh, Sang Jin Jeon, Seong Min Chae
  • Publication number: 20200223962
    Abstract: The present disclosure relates to a polypropylene for injection having a high content of ultra-high molecular weight and excellent rigidity, and a method for preparing the same.
    Type: Application
    Filed: November 1, 2018
    Publication date: July 16, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Seok Hwan Kim, Hyunsup Lee, Seong Min Chae, Taejin Kim, Dae Sik Hong, Sang Jin Jeon, Hee Kwang Park
  • Publication number: 20200207968
    Abstract: The present invention relates to a propylene-butene copolymer resin composition used for non-woven fabric, a method of preparing the same, and spunbond non-woven fabric manufactured using the composition, and particularly, by optimizing a content of 1-butene in a metallocene polypropylene resin composition to 0.5 to 5.0 wt %, while simultaneously optimizing both of a melt index and a residual stress ratio of the resin composition, has a merit of having a reduced modulus together with a high conversion rate to manufacture non-woven fabric which is softer than existing products while maintaining high strength.
    Type: Application
    Filed: July 11, 2018
    Publication date: July 2, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Hee Kwang Park, Kyung Seop Noh, Sang Jin Jeon, Hyunsup Lee, In Sun Lee, Jin Hyun Park, Changkwon Chung
  • Publication number: 20200202761
    Abstract: A scan driver for a display device includes scan signal output circuits connected to each other through scan lines. Each scan signal output circuit includes: a drive circuit to apply a first drive signal to a first drive node, to apply a second drive signal to a second drive node, and to apply a connection signal to a connection signal output node based on i) an input signal which is one of either a scan start signal or a scan signal applied by another scan signal output circuit, ii) a clock signal, and iii) an on-level voltage; and a buffer circuit to receive the connection signal, the first drive signal, and the second drive signal from the drive circuit, and to output one of scan signals to one of the scan lines based on the first drive signal, the second drive signal, and the clock signal.
    Type: Application
    Filed: November 11, 2019
    Publication date: June 25, 2020
    Inventors: Yang Hwa CHOI, Sun Kwang KIM, Sang Jin JEON
  • Publication number: 20200140583
    Abstract: The present invention provides a homopolypropylene having high strength and a low content of low molecular weights together with excellent processability, and a preparation method thereof.
    Type: Application
    Filed: October 1, 2018
    Publication date: May 7, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Taejin Kim, Seong Min Chae, Kyung Seop Noh, Sang Jin Jeon, In Yong Jung
  • Patent number: 10633467
    Abstract: The present invention provides a method for preparing an olefin polymer which can exhibit excellent isotacticity in a high yield and thus is suitable for use in reinforcing a long fiber, and a long fiber comprising an olefin polymer produced according to the above preparation method. In the preparation method, there can be provided an olefin polymer having excellent isotacticity in a high yield can be obtained by using a supported catalyst in which a transition metal compound having a specific structure is supported on a carrier together with two kinds of cocatalysts. In particular, the supported catalyst can exhibit high activity, excellent process stability and high hydrogen reactivity, thereby providing an olefin polymer having a high flow rate with a regular and excellent morphology. Such olefin polymer exhibits high processability while having excellent mechanical properties such as a tensile strength and a flexural strength, and thus are very useful as long fiber reinforced resins.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: April 28, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Kyung Seop Noh, Ki Soo Lee, Sang Jin Jeon, Sang Eun An, Ji Ho Choi, Jae Youp Cheong, Hee Kwang Park, Sang Hoon Lee
  • Patent number: 10604597
    Abstract: The present invention relates to a polypropylene which exhibits high transparency and has a very low level of generation of volatile organic compounds, which has a total volatile organic compounds (TVOC) value of 60 ?g/g or less, which is measured according to VDA 277 standardized by the German Automobile Industry Association by heating the polypropylene for 12 to 5 hours and converting all hydrocarbons detected per 1 g into an acetone content, and a haze value of 5% or less.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: March 31, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Ji Ho Choi, In Yong Jung, Kyung Seop Noh, Won-Sang Lee, Sang Jin Jeon, Sang Eun An, Sang Hoon Lee
  • Patent number: 10520781
    Abstract: The present invention relates to a liquid crystal display including: a lower electrode including a unit pixel electrode; an upper electrode including an upper unit electrode facing the unit pixel electrode; and a liquid crystal layer between the lower electrode and the upper electrode and including a plurality of liquid crystal molecules aligned approximately perpendicular to the surfaces of the lower electrode and the upper electrode in the absence of an electric field, wherein the unit pixel electrode includes a stem forming a boundary between a plurality of sub-regions and a plurality of minute branches extending in different directions in two different sub-regions, the upper unit electrode includes an opening facing the stem and extending parallel to the stem, any alignment aid to pretilt the liquid crystal molecules is absent, and a length of the minute branches is equal to or less than about 53 ?m.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: December 31, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang Wi Ryu, Cheol Shin, Hak Sun Chang, Ki Chul Shin, Jae-Soo Jang, Ka Eun Kim, Ho Kil Oh, Se Hyun Lee, Hyo Ju Jung, Sang Hyeon Song, Sang Jin Jeon