Patents by Inventor Yong-Su Lee

Yong-Su Lee 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: 20200258966
    Abstract: An organic light emitting diode display includes a first thin film transistor of which a channel is formed in a polycrystalline transistor, a second thin film transistor of which a channel is formed in an oxide semiconductor layer, an organic light emitting diode electrically connected to the first thin film transistor, a storage capacitor having a first electrode and a second electrode, wherein the second electrode of the storage capacitor is electrically connected to a gate electrode of the first thin film transistor, and an overlapping layer overlapping the oxide semiconductor layer in a plan view and receiving a positive voltage. The oxide semiconductor layer is positioned higher than the gate electrode of the first thin film transistor and the second electrode of the storage capacitor.
    Type: Application
    Filed: September 19, 2019
    Publication date: August 13, 2020
    Inventors: MYOUNG GEUN CHA, SANG GUN CHOI, SANG SUB KIM, JI YEONG SHIN, YONG SU LEE, KI SEOK CHOI
  • Patent number: 10734526
    Abstract: A display device includes: a flexible substrate; a semiconductor layer on the flexible substrate; a passivation layer on the semiconductor layer; an alignment member layer on the passivation, the alignment member layer including a first alignment member and a second alignment member in a same layer; a first insulation layer on the alignment member layer and the passivation layer; a gate electrode on the first insulation layer; a second insulation layer on the first insulation layer and the gate electrode; and a source electrode and a drain electrode on the second insulation layer and spaced apart from each other, wherein the first alignment member and the second alignment member are spaced apart from each other with the gate electrode therebetween.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: August 4, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong Chan Lee, Kyoung Won Lee, Woong Hee Jeong, Yong Su Lee
  • Patent number: 10715797
    Abstract: The present invention relates to a device for testing an angle of view of a camera. The present invention may comprise: a first light source which is arranged to face an image sensor, and has a first width and a second width longer than the first width; and a second light source and a third light source which are disposed on both sides of the image sensor in the direction of the first width, respectively. The present invention can inhibit an interference of the light source or a bracket supporting the light source by reducing the number of light sources. In addition, since it is possible to measure the angle of view of a camera by reducing the light sources, the present invention can reduce the manufacturing costs of a device for testing an angle of view of a camera.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: July 14, 2020
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Dae Sang Ryu, Kyoung Chan Park, Yong Su Lee, Hyung Seok Lim
  • Patent number: 10658398
    Abstract: A display device includes a substrate, a buffer layer on the substrate, a first semiconductor layer of a first transistor on the buffer layer, a first insulating layer disposed on the first semiconductor layer, a first gate electrode of the first transistor on the first insulating layer, a second insulating layer on the first gate electrode, and a second semiconductor layer of a second transistor disposed on the second insulating layer. A difference between a first distance between a lower side of the buffer layer and an upper side of the second insulating layer and a second distance between an upper side of the first semiconductor layer and an upper side of the second insulating layer is 420 to 520 angstroms.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: May 19, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong Chan Lee, Woong Hee Jeong, Tae Hoon Yang, Yong Su Lee
  • Publication number: 20200135831
    Abstract: An organic light emitting diode display includes a substrate, an overlap layer on the substrate, a semiconductor layer on the overlap layer, a first gate conductor on the semiconductor layer, a second gate conductor on the first gate conductor, a data conductor on the second gate conductor, a driving transistor on the overlap layer, and an organic light emitting diode connected with the driving transistor. The driving transistor includes, in the semiconductor layer, a first electrode, a second electrode, with a channel therebetween. A gate electrode of the first gate conductor overlaps the channel. The overlap layer overlaps the channel of the driving transistor and at least a portion of the first electrode. A storage line of the second gate conductor receives a driving voltage through a driving voltage line in the data conductor. The overlap layer receives a constant voltage.
    Type: Application
    Filed: October 23, 2019
    Publication date: April 30, 2020
    Inventors: Joon Woo BAE, Mee Jae KANG, Thanh Tien NGUYEN, Kyoung Won LEE, Yong Su LEE, Jae Seob LEE, Gyoo Chul JO, Myoung Geun CHA
  • Publication number: 20200111855
    Abstract: An organic light emitting diode display according to an exemplary embodiment includes: a substrate; a first buffer layer on the substrate; a first semiconductor layer on the first buffer layer; a first gate insulating layer on the first semiconductor layer; a first gate electrode and a blocking layer on the first gate insulating layer; a second buffer layer on the first gate electrode; a second semiconductor layer on the second buffer layer; a second gate insulating layer on the second semiconductor layer; and a second gate electrode on the second gate insulating layer.
    Type: Application
    Filed: October 3, 2019
    Publication date: April 9, 2020
    Inventors: Joon Woo BAE, So Young KOO, Han Bit KIM, Thanh Tien NGUYEN, Kyoung Won LEE, Yong Su LEE, Jae Seob LEE, Gyoo Chul JO
  • Publication number: 20200105850
    Abstract: An exemplary embodiment of the present disclosure provides a display device including: a substrate; a semiconductor layer disposed on the substrate; a first transistor including a first gate electrode disposed on the semiconductor layer; a light-emitting diode connected with the first transistor; and a first layer disposed between the substrate and the semiconductor layer, wherein the semiconductor layer includes a first electrode, a second electrode, and a channel disposed between the first electrode and the second electrode, the channel includes an impurity, and the first layer overlaps the first transistor.
    Type: Application
    Filed: September 27, 2019
    Publication date: April 2, 2020
    Inventors: Mee Jae Kang, Joon Woo Bae, Thanh Tien Nguyen, Kyoung Won Lee, Yong Su Lee, Jae Seob Lee, Gyoo Chul Jo, Myoung Geun Cha
  • Publication number: 20190341440
    Abstract: A display device including: a substrate; a light emitting element on the substrate; a pixel circuit between the substrate and the light emitting element, wherein the pixel circuit is electrically connected to the light emitting element, and includes a plurality of transistors; and a conductive pattern including an electrode portion and a wiring portion for supplying a voltage to the electrode portion, wherein the electrode portion overlaps an active pattern of at least one transistor among the plurality of transistors, wherein the conductive pattern is disposed between the substrate and the active pattern, and wherein a thickness of the wiring portion is greater than a thickness of the electrode portion.
    Type: Application
    Filed: April 12, 2019
    Publication date: November 7, 2019
    Inventors: Myounggeun CHA, Sanggun CHOI, Jiyeong SHIN, Yong Su LEE
  • Publication number: 20190340978
    Abstract: A pixel unit of a display device including: an OLED; a first transistor including a first electrode connected to a first node, a second electrode connected to a second node, and a third electrode connected to a third node; a capacitor including a first electrode receiving a power voltage and a second electrode connected to the first node; a second transistor including a first electrode receiving a scan signal, a second electrode receiving a data voltage and a third electrode connected to the second node; a third transistor including a first electrode receiving the scan signal, a second electrode connected to the first node and a third electrode connected to the third node, wherein at least one of the first and third transistors includes a fourth electrode, the fourth electrode receives a compensation voltage when an operation temperature is above a preset temperature and is floated when the operation temperature is equal to or more than the preset temperature.
    Type: Application
    Filed: April 11, 2019
    Publication date: November 7, 2019
    Inventors: Myounggeun CHA, Sanggun CHOI, Jiyeong SHIN, Yong Su LEE
  • Publication number: 20190326560
    Abstract: A method for manufacturing a display device including forming a lower electrode on a substrate; depositing a first insulation layer thereon; forming a semiconductor layer that overlaps the lower electrode thereon; depositing a second insulation layer thereon; forming a gate electrode and an etching prevention layer that overlap the semiconductor layer thereon; depositing a third insulation layer thereon; forming a first conductor that overlaps the gate electrode thereon; depositing a fourth insulation layer thereon; forming a photosensitive film patterns thereon by depositing a photosensitive film and exposing and developing the photosensitive film such that portions of the photosensitive film are removed in a first area, a second area, and a third area; etching the third insulation layer using the patterns as an etching mask; etching the etching prevention layer by using the patterns as an etching mask; and etching the first insulation layer using the patterns as an etching mask.
    Type: Application
    Filed: November 29, 2018
    Publication date: October 24, 2019
    Inventors: Myoung Geun CHA, Sang Gun CHOI, Joon Woo BAE, Ji Yeong SHIN, Yong Su LEE
  • Patent number: 10453911
    Abstract: A display device includes first semiconductor pattern including a first channel portion, a first electrode connected to a driving voltage line, and a second electrode connected to a light emitting element, a first insulating, a first conductive layer including a first gate electrode, a second insulating layer, a second conductive layer including an initialization power line, a third insulating layer, an upper semiconductor layer including a second semiconductor pattern including a second channel portion, a third electrode, and a fourth electrode connected to the first gate electrode, and a third semiconductor pattern including a third channel portion, a fifth electrode connected to the third electrode, and a sixth electrode connected to the second electrode, a fourth insulating layer, and a third conductive layer including a scan line and a control signal line, wherein the upper semiconductor layer does not overlap the first gate electrode and the initialization power line.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: October 22, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myoung Geun Cha, Sang Gun Choi, Thanh Tien Nguyen, Kyoung Won Lee, Yong Su Lee, Joo Hye Jung
  • Publication number: 20190312147
    Abstract: A thin film transistor according to an exemplary embodiment of the present invention includes an oxide semiconductor. A source electrode and a drain electrode face each other. The source electrode and the drain electrode are positioned at two opposite sides, respectively, of the oxide semiconductor. A low conductive region is positioned between the source electrode or the drain electrode and the oxide semiconductor. An insulating layer is positioned on the oxide semiconductor and the low conductive region. A gate electrode is positioned on the insulating layer. The insulating layer covers the oxide semiconductor and the low conductive region. A carrier concentration of the low conductive region is lower than a carrier concentration of the source electrode or the drain electrode.
    Type: Application
    Filed: December 24, 2018
    Publication date: October 10, 2019
    Inventors: Yong Su Lee, Yoon Ho Khang, Dong Jo Kim, Hyun Jae Na, Sang Ho Park, Se Hwan Yu, Chong Sup Chang, Dae Ho Kim, Jae Neung Kim, Myoung Geun Cha, Sang Gab Kim, Yu-Gwang Jeong
  • Publication number: 20190305062
    Abstract: A display may include flexible substrate, a blocking layer on the flexible substrate, a pixel on the flexible substrate and the blocking layer, and a scan line, a data line, a driving voltage line, and an initialization voltage line connected to the pixel. The pixel may include an organic light emitting diode, a switching transistor connected to the scan line, and a driving transistor to apply a current to the organic light emitting diode. The blocking layer is in an area that overlaps the switching transistor on a plane, and between the switching transistor and the flexible substrate, and receives a voltage through a contact hole that exposes the blocking layer.
    Type: Application
    Filed: January 18, 2019
    Publication date: October 3, 2019
    Inventors: Seong Min WANG, Young-In HWANG, Yong Ho YANG, Yong Su LEE, Jae Seob LEE, Gyoo Chul JO
  • Publication number: 20190281283
    Abstract: The present invention relates to a device for testing an angle of view of a camera. The present invention may comprise: a first light source which is arranged to face an image sensor, and has a first width and a second width longer than the first width; and a second light source and a third light source which are disposed on both sides of the image sensor in the direction of the first width, respectively. The present invention can inhibit an interference of the light source or a bracket supporting the light source by reducing the number of light sources. In addition, since it is possible to measure the angle of view of a camera by reducing the light sources, the present invention can reduce the manufacturing costs of a device for testing an angle of view of a camera.
    Type: Application
    Filed: May 28, 2019
    Publication date: September 12, 2019
    Inventors: DAE SANG RYU, KYOUNG CHAN PARK, YONG SU LEE, HYUNG SEOK LIM
  • Patent number: 10349047
    Abstract: The present invention relates to a device for testing an angle of view of a camera. The present invention may comprise: a first light source which is arranged to face an image sensor, and has a first width and a second width longer than the first width; and a second light source and a third light source which are disposed on both sides of the image sensor in the direction of the first width, respectively. The present invention can inhibit an interference of the light source or a bracket supporting the light source by reducing the number of light sources. In addition, since it is possible to measure the angle of view of a camera by reducing the light sources, the present invention can reduce the manufacturing costs of a device for testing an angle of view of a camera.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: July 9, 2019
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Dae Sang Ryu, Kyoung Chan Park, Yong Su Lee, Hyung Seok Lim
  • Publication number: 20190115412
    Abstract: A display device includes first semiconductor pattern including a first channel portion, a first electrode connected to a driving voltage line, and a second electrode connected to a light emitting element, a first insulating, a first conductive layer including a first gate electrode, a second insulating layer, a second conductive layer including an initialization power line, a third insulating layer, an upper semiconductor layer including a second semiconductor pattern including a second channel portion, a third electrode, and a fourth electrode connected to the first gate electrode, and a third semiconductor pattern including a third channel portion, a fifth electrode connected to the third electrode, and a sixth electrode connected to the second electrode, a fourth insulating layer, and a third conductive layer including a scan line and a control signal line, wherein the upper semiconductor layer does not overlap the first gate electrode and the initialization power line.
    Type: Application
    Filed: April 27, 2018
    Publication date: April 18, 2019
    Inventors: Myoung Geun CHA, Sang Gun CHOI, Thanh Tien NGUYEN, Kyoung Won LEE, Yong Su LEE, Joo Hye JUNG
  • Publication number: 20190096925
    Abstract: A display device includes a substrate, a buffer layer on the substrate, a first semiconductor layer of a first transistor on the buffer layer, a first insulating layer disposed on the first semiconductor layer, a first gate electrode of the first transistor on the first insulating layer, a second insulating layer on the first gate electrode, and a second semiconductor layer of a second transistor disposed on the second insulating layer. A difference between a first distance between a lower side of the buffer layer and an upper side of the second insulating layer and a second distance between an upper side of the first semiconductor layer and an upper side of the second insulating layer is 420 to 520 angstroms.
    Type: Application
    Filed: July 17, 2018
    Publication date: March 28, 2019
    Inventors: Jong Chan LEE, Woong Hee JEONG, Tae Hoon YANG, Yong Su LEE
  • Patent number: 10192992
    Abstract: A thin film transistor according to an exemplary embodiment of the present invention includes an oxide semiconductor. A source electrode and a drain electrode face each other. The source electrode and the drain electrode are positioned at two opposite sides, respectively, of the oxide semiconductor. A low conductive region is positioned between the source electrode or the drain electrode and the oxide semiconductor. An insulating layer is positioned on the oxide semiconductor and the low conductive region. A gate electrode is positioned on the insulating layer. The insulating layer covers the oxide semiconductor and the low conductive region. A carrier concentration of the low conductive region is lower than a carrier concentration of the source electrode or the drain electrode.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: January 29, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yong Su Lee, Yoon Ho Khang, Dong Jo Kim, Hyun Jae Na, Sang Ho Park, Se Hwan Yu, Chong Sup Chang, Dae Ho Kim, Jae Neung Kim, Myoung Geun Cha, Sang Gab Kim, Yu-Gwang Jeong
  • Patent number: 10071662
    Abstract: Disclosed herein is a hinge unit of a console armrest for a vehicle, which includes an upper bracket including an armrest installation part coupled to an armrest, and upper hinge parts formed at both sides of the armrest installation part, each having a first upper hinge hole, a lower bracket including a console installation part coupled to a console, and lower hinge parts formed at both sides of the console installation part, each having a first lower hinge hole, an upper bracket cover configured to surround at least a portion of each of the upper hinge parts and to have a second upper hinge hole formed at a position corresponding to the first upper hinge hole, and a lower bracket cover configured to surround at least a portion of each of the lower hinge parts and to have a second lower hinge hole.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: September 11, 2018
    Assignee: Seoyon E-Hwa Co., Ltd.
    Inventors: Bong Joo Choi, Yong Su Lee
  • Publication number: 20180249152
    Abstract: The present invention relates to a device for testing an angle of view of a camera. The present invention may comprise: a first light source which is arranged to face an image sensor, and has a first width and a second width longer than the first width; and a second light source and a third light source which are disposed on both sides of the image sensor in the direction of the first width, respectively. The present invention can prevent an interference of the light source or a bracket supporting the light source by reducing the number of light sources. In addition, since it is possible to measure the angle of view of a camera by reducing the light sources, the present invention can reduce the manufacturing costs of a device for testing an angle of view of a camera.
    Type: Application
    Filed: September 7, 2016
    Publication date: August 30, 2018
    Inventors: DAE SANG RYU, KYOUNG CHAN PARK, YONG SU LEE, HYUNG SEOK LIM