Patents by Inventor Kyung-jin JEON

Kyung-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).

  • Publication number: 20210036028
    Abstract: A display device includes a pixel connected to a scan line, and a data line crossing the scan line, wherein the pixel includes a light-emitting element, a driving transistor configured to control a driving current supplied to the light-emitting element according to a data voltage applied from the data line, and a first switching transistor configured to apply the data voltage of the data line to the driving transistor according to a scan signal that is applied to the scan line. The driving transistor includes a first active layer including an oxide semiconductor, and a first oxide layer disposed on the first active layer and including an oxide semiconductor. The first switching transistor includes a second active layer including an oxide semiconductor, and the first oxide layer is not disposed on the second active layer.
    Type: Application
    Filed: March 31, 2020
    Publication date: February 4, 2021
    Inventors: Myoung Hwa KIM, Joon Seok PARK, So Young KOO, Tae Sang KIM, Yeon Keon MOON, Geun Chul PARK, Jun Hyung LIM, Kyung Jin JEON
  • Publication number: 20210020110
    Abstract: A display device, includes: a pixel connected to a scan line and a data line crossing the scan line, wherein the pixel includes a light emitting element, a driving transistor configured to control a driving current supplied to the light emitting element according to a data voltage received from the data line, and a first switching transistor configured to apply the data voltage of the data line to the driving transistor according to a scan signal applied to the scan line; wherein the driving transistor includes a first active layer including an oxide semiconductor and a first oxide layer on the first active layer and including an oxide semiconductor; and wherein the first switching transistor includes a second active layer on the first active layer and including the same oxide semiconductor as the first oxide layer.
    Type: Application
    Filed: April 10, 2020
    Publication date: January 21, 2021
    Inventors: Joon Seok PARK, So Young KOO, Myoung Hwa KIM, Eok Su KIM, Tae Sang KIM, Hyung Jun KIM, Yeon Keon MOON, Geun Chul PARK, Jun Hyung LIM, Kyung Jin JEON, Hye Lim CHOI
  • Publication number: 20210020872
    Abstract: A display device includes pixels connected to scan lines and data lines intersecting the scan lines, wherein each of the pixels includes a light-emitting element, a driving transistor to control a driving current supplied to the light-emitting element according to a data voltage applied from the data lines, and a switching transistor to apply the data voltage of the data line to the driving transistor according to a scan signal applied from the scan lines. The driving transistor includes a first active layer having an oxide semiconductor and a first gate electrode below the first active layer. The switching transistor includes a second active layer having a same oxide semiconductor as the oxide semiconductor of the first active layer and a second gate electrode below the second active layer. At least one of the driving transistor and the switching transistor includes an oxide layer above each of the active layers.
    Type: Application
    Filed: April 1, 2020
    Publication date: January 21, 2021
    Inventors: Joon Seok PARK, Yeon Keon MOON, Myoung Hwa KIM, Tae Sang KIM, Hyung Jun KIM, Geun Chul PARK, Sang Woo SOHN, Jun Hyung LIM, Kyung Jin JEON, Hye Lim CHOI
  • Publication number: 20200402467
    Abstract: A display device includes pixels connected to scan lines and data lines intersecting the scan lines, wherein each of the pixels includes a light emitting element and a first transistor configured to control a driving current supplied to the light emitting element according to a data voltage applied from a respective data line of the data lines, the first transistor includes a first active layer including an oxide semiconductor containing indium (In), and a content of the indium in the oxide semiconductor of the first active layer is 70 at % or more.
    Type: Application
    Filed: April 15, 2020
    Publication date: December 24, 2020
    Applicant: Samsung Display Co., LTD.
    Inventors: Hye Lim CHOI, Yeon Keon MOON, Joon Seok PARK, Myoung Hwa KIM, Tae Sang KIM, Hyung Jun KIM, Geun Chul PARK, Kyung Jin JEON
  • Patent number: 10868049
    Abstract: A display device includes: a substrate including a display area and a non-display area; a gate driver disposed on the substrate in the non-display area and including a plurality of stages that generate a gate signal and output the gate signal to the display area; a switching transistor and a driving transistor disposed on the substrate in the display area; and a light emitting diode connected to the driving transistor, wherein each of the plurality of stages may include a plurality of transistors, wherein a channel layer of the driving transistor includes a first oxide semiconductor material, and a channel layer of the plurality of transistors included in each of the plurality of stages includes a second oxide semiconductor material, wherein the first oxide semiconductor material is different from the second oxide semiconductor material, and wherein the second oxide semiconductor material may include tin.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: December 15, 2020
    Inventors: Joon Seok Park, Tae Sang Kim, Yeon Keon Moon, Geun Chul Park, Jun Hyung Lim, Kyung Jin Jeon
  • Publication number: 20200361837
    Abstract: Provided is an n-heptane production method including: a step of distilling a feed containing C6?, C7, and C8+ hydrocarbon components, removing the C8+ and C6? hydrocarbon components, and separating the C7 hydrocarbon component; a step of adding the separated C7 hydrocarbon component to a hydrogenation apparatus and hydrogenating the separated C7 hydrocarbon component; a step of adding the hydrogenated C7 hydrocarbon component to a simulated moving bed (SMB) apparatus and separating the hydrogenated C7 hydrocarbon component into an extract containing n-heptane and a raffinate containing other components; and a step of distilling the extract and separating the n-heptane in an extract column, wherein a purity of the produced n-heptane is 98 wt % or higher.
    Type: Application
    Filed: April 16, 2020
    Publication date: November 19, 2020
    Inventors: Kyung Jin Jeon, Soo Kil Kang
  • Publication number: 20200343275
    Abstract: A display device and a method of manufacturing the same. The display device includes a pixel connected to a scan line and a data line intersecting the scan line, and a driving transistor and a switching transistor disposed in the pixel. The driving transistor includes a substrate, a first active layer disposed on the substrate, a first gate electrode disposed on the first active layer, and a second insulating film contacting the first gate electrode and the first gate electrode. The switching transistor includes a second active layer disposed on the substrate, a second gate electrode disposed on the second active layer, a first insulating film contacting the second active layer and the second gate electrode, and a second insulating film covering the first insulating film. The first insulating film and the second insulating film are made of different materials from each other.
    Type: Application
    Filed: March 13, 2020
    Publication date: October 29, 2020
    Applicant: Samsung Display Co., LTD.
    Inventors: Geun Chul PARK, Joon Seok PARK, Tae Sang KIM, Yeon Keon MOON, Jun Hyung LIM, Kyung Jin JEON
  • Publication number: 20200286927
    Abstract: A display device includes a plurality of pixels respectively coupled to scan lines and data lines intersecting the scan lines, wherein at least some of the pixels includes a driving transistor including a substrate, a first insulating layer disposed on the substrate, a first active layer disposed on the first insulating layer, a first gate electrode disposed on the first active layer, and a first source electrode and a first drain electrode electrically connected to the first active layer, the first drain electrode being spaced apart from the first source electrode by a first distance, and a switching transistor including a second gate electrode disposed between the substrate and the first insulating layer, a second active layer disposed on the same layer as the first active layer, and a second source electrode and a second drain electrode electrically connected to the second active layer, the second drain electrode being spaced apart from the second source electrode by a second distance different from the fi
    Type: Application
    Filed: February 5, 2020
    Publication date: September 10, 2020
    Inventors: Joon Seok Park, Tae Sang Kim, Yeon Keon Moon, Geun Chul Park, Jun Hyung Lim, Kyung Jin Jeon
  • Publication number: 20200098924
    Abstract: A transistor substrate may include: a substrate; an active pattern formed on the substrate, the active pattern including an oxide semiconductor that contains tin (Sn), and the active pattern including a source region, a drain region, and a channel region that is formed between the source region and the drain region; a source protective pattern formed on the source region; a drain protective pattern formed on the drain region; a gate electrode overlapping at least a portion of the channel region; an insulation interlayer covering the source protective pattern and the drain protective pattern; a source electrode formed on the insulation interlayer, the source electrode being in contact with the source protective pattern through a source contact hole that is formed in the insulation interlayer; and a drain electrode formed on the insulation interlayer, the drain electrode being in contact with the drain protective pattern through a drain contact hole that is formed in the insulation interlayer.
    Type: Application
    Filed: September 6, 2019
    Publication date: March 26, 2020
    Inventors: Tae Sang KIM, Joon Seok PARK, Kwang Suk KIM, Yeon Keon MOON, Geunchul PARK, Jun Hyung LIM, Kyung Jin JEON
  • Publication number: 20200075641
    Abstract: A display device includes: a substrate including a display area and a non-display area; a gate driver disposed on the substrate in the non-display area and including a plurality of stages that generate a gate signal and output the gate signal to the display area; a switching transistor and a driving transistor disposed on the substrate in the display area; and a light emitting diode connected to the driving transistor, wherein each of the plurality of stages may include a plurality of transistors, wherein a channel layer of the driving transistor includes a first oxide semiconductor material, and a channel layer of the plurality of transistors included in each of the plurality of stages includes a second oxide semiconductor material, wherein the first oxide semiconductor material is different from the second oxide semiconductor material, and wherein the second oxide semiconductor material may include tin.
    Type: Application
    Filed: August 1, 2019
    Publication date: March 5, 2020
    Inventors: Joon Seok PARK, Tae Sang KIM, Yeon Keon MOON, Geun Chul PARK, Jun Hyung LIM, Kyung Jin JEON
  • Publication number: 20200052056
    Abstract: An organic light emitting diode display device includes a substrate, a first oxide transistor, a second oxide transistor, and a sub-pixel structure. The substrate has a display region including a plurality of sub-pixel regions and a peripheral region located in a side of the display region. The first oxide transistor is disposed in the peripheral region on the substrate, and includes a first oxide semiconductor pattern that includes tin (Sn). The second oxide transistor is disposed in the sub-pixel regions each on the substrate, and includes a second oxide semiconductor pattern. The sub-pixel structure is disposed on the second oxide transistor.
    Type: Application
    Filed: August 13, 2019
    Publication date: February 13, 2020
    Inventors: Joon Seok PARK, Yeon Keon MOON, Kwang Suk KIM, Tae Sang KIM, Geunchul PARK, Kyung Jin JEON
  • Patent number: 9468066
    Abstract: A photo sensor-integrated tubular light emitting apparatus includes a cylindrical cover unit, a light-emitting module and a pair of sockets. The cylindrical cover unit includes a heat dissipation member and a cover. The cover has light-transmittance and is combined with the heat dissipation member. The light-emitting module is disposed in the cylindrical cover unit and has a plurality of arrayed light-emitting devices therein. The pair of sockets is combined with ends of the cylindrical cover unit. A photo sensor module is disposed in one of the pair of sockets. A driving voltage applied to the light-emitting module is adjusted based on an amount of light sensed by the photo sensor module.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: October 11, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoung-chul Park, Kyung-jin Jeon, Min-su Kim
  • Publication number: 20140225513
    Abstract: A photo sensor-integrated tubular light emitting apparatus includes a cylindrical cover unit, a light-emitting module and a pair of sockets. The cylindrical cover unit includes a heat dissipation member and a cover. The cover has light-transmittance and is combined with the heat dissipation member. The light-emitting module is disposed in the cylindrical cover unit and has a plurality of arrayed light-emitting devices therein. The pair of sockets is combined with ends of the cylindrical cover unit. A photo sensor module is disposed in one of the pair of sockets. A driving voltage applied to the light-emitting module is adjusted based on an amount of light sensed by the photo sensor module.
    Type: Application
    Filed: February 7, 2014
    Publication date: August 14, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoung-chul PARK, Kyung-jin JEON, Min-su KIM