Patents by Inventor Kwang-Chul Jung

Kwang-Chul Jung 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: 11778875
    Abstract: A display device includes a base substrate including: a display region including a pixel, and a pad region defining an end surface of the base substrate which is furthest from the display region and exposed outside the display panel; an insulating layer in the display region and the pad region; and in the pad region: a signal pad electrically connected to the pixel and to a dummy pad; the insulating layer covering the signal pad and the dummy pad and defining an end surface of the insulating layer which is furthest from the display region and exposed outside the display panel; and a first opening in the insulating layer which exposes the signal pad outside the insulating layer and outside the display panel. In the pad region, the end surfaces of the base substrate and the insulating layer together define an inclined edge of the display panel.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: October 3, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwang-Chul Jung, Youngrae Kim, Dong-Yoon So, Kyungmin Park, Samho Ihm, Yongjun Jo
  • Publication number: 20230247876
    Abstract: A display device includes: a substrate; a plurality of transistors disposed on the substrate; an initialization voltage line disposed on the substrate and including a first initialization voltage line that extends in a first direction, and a second initialization voltage line that extends in a second direction; and a driving voltage line disposed on the substrate and extending in the second direction, wherein each of the first initialization voltage line and the driving voltage line is connected to at least one of the plurality of transistors, and the second initialization voltage line and the driving voltage line overlap each other.
    Type: Application
    Filed: March 29, 2023
    Publication date: August 3, 2023
    Inventors: Mi Na KIM, Seul Bee LEE, Kwang-Chul JUNG, Yong Jun JO
  • Patent number: 11621314
    Abstract: A display device includes: a substrate; a plurality of transistors disposed on the substrate; an initialization voltage line disposed on the substrate and including a first initialization voltage line that extends in a first direction, and a second initialization voltage line that extends in a second direction; and a driving voltage line disposed on the substrate and extending in the second direction, wherein each of the first initialization voltage line and the driving voltage line is connected to at least one of the plurality of transistors, and the second initialization voltage line and the driving voltage line overlap each other.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: April 4, 2023
    Inventors: Mi Na Kim, Seul Bee Lee, Kwang-Chul Jung, Yong Jun Jo
  • Patent number: 11482163
    Abstract: A display device includes scan lines disposed in a first direction; data lines disposed in a second direction substantially perpendicular to the first direction; and unit pixel regions adjacent to the scan lines and the data lines, each unit pixel region including sub-pixels. A portion of an opening region of at least one of the sub-pixels overlaps a unit pixel region adjacent to a unit pixel region corresponding to the at least one of the sub-pixels, and a side of the opening region of the at least one of the sub-pixels extends in a third direction inclined with respect to each of the first direction and the second direction.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: October 25, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Koo Chung, Dong Soo Kim, Taek Ju Jung, Seong Min Kim, Kyung Soo Jang, Kwang Chul Jung, Kyung Hyun Choi
  • Publication number: 20220336569
    Abstract: A display device includes a substrate including sub-pixel circuit areas that are arranged in m rows and n columns, where m and n are positive integers, first gate lines extending in a row direction, data lines extending in a column direction, initialization power lines extending in the row direction, including first power lines disposed in sub-pixel circuit areas of odd rows and receiving a first initialization voltage and second power lines disposed in sub-pixel circuit areas of even rows and receiving a second initialization voltage, and transmission lines extending in the column direction, including first transmission lines disposed in sub-pixel circuit areas of odd columns and receiving the first initialization voltage from the first power lines and second transmission lines disposed in sub-pixel circuit areas of even columns and receiving the second initialization voltage from the second power lines.
    Type: Application
    Filed: February 28, 2022
    Publication date: October 20, 2022
    Inventors: JUN-YONG AN, MIN JEONG KIM, HYUNGJUN PARK, NUREE UM, KWANG-CHUL JUNG
  • Publication number: 20220293695
    Abstract: A display device may include a pixel circuit in a display area including a rounded corner portion, a scan driving circuit in a peripheral area surrounding the display area, and configured to provide a scan signal to the pixel circuit, a fan-out line between the pixel circuit and the scan driving circuit in the peripheral area adjacent to the corner portion, and configured to provide a pixel data signal to the pixel circuit, and a repair circuit between the scan driving circuit and the fan-out line in the peripheral area adjacent to the corner portion.
    Type: Application
    Filed: March 4, 2022
    Publication date: September 15, 2022
    Inventors: YONGJUN JO, KWANG-CHUL JUNG, MINA KIM, SEULBEE LEE
  • Patent number: 11444131
    Abstract: A display apparatus includes a display area extending in a first direction and a second direction, first to fourth sub-pixels, and a spacer. The first sub-pixel emits a first color light, and includes first and second sides extending in a third direction inclined at a predetermined angle with the first direction, and third and fourth sides extending in a fourth direction perpendicular to the third direction. The second sub-pixel emits a second color light, and is disposed adjacent to the second side of the first sub-pixel in the fourth direction. The third sub-pixel emits a third color light, and is disposed adjacent to the fourth side of the first sub-pixel in the third direction. The fourth sub-pixel emits the first color light, and is disposed adjacent to the second and third sub-pixels. The spacer is disposed between the first and second sub-pixels and between the third and fourth sub-pixels.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: September 13, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Mina Kim, Kwang-Chul Jung, Wonkyu Kwak, Dongsoo Kim, Jinkoo Chung, Yongjun Jo, Changsoo Pyon
  • Publication number: 20220069049
    Abstract: A display device includes: a substrate; a plurality of transistors disposed on the substrate; an initialization voltage line disposed on the substrate and including a first initialization voltage line that extends in a first direction, and a second initialization voltage line that extends in a second direction; and a driving voltage line disposed on the substrate and extending in the second direction, wherein each of the first initialization voltage line and the driving voltage line is connected to at least one of the plurality of transistors, and the second initialization voltage line and the driving voltage line overlap each other.
    Type: Application
    Filed: April 1, 2021
    Publication date: March 3, 2022
    Inventors: Mi Na KIM, Seul Bee LEE, Kwang-Chul JUNG, Yong Jun JO
  • Publication number: 20210383747
    Abstract: A display device includes scan lines disposed in a first direction; data lines disposed in a second direction substantially perpendicular to the first direction; and unit pixel regions adjacent to the scan lines and the data lines, each unit pixel region including sub-pixels. A portion of an opening region of at least one of the sub-pixels overlaps a unit pixel region adjacent to a unit pixel region corresponding to the at least one of the sub-pixels, and a side of the opening region of the at least one of the sub-pixels extends in a third direction inclined with respect to each of the first direction and the second direction.
    Type: Application
    Filed: August 23, 2021
    Publication date: December 9, 2021
    Applicant: Samsung Display Co., LTD.
    Inventors: Jin Koo CHUNG, Dong Soo KIM, Taek Ju JUNG, Seong Min KIM, Kyung Soo JANG, Kwang Chul JUNG, Kyung Hyun CHOI
  • Publication number: 20210313411
    Abstract: A display device includes a base substrate including: a display region including a pixel, and a pad region defining an end surface of the base substrate which is furthest from the display region and exposed outside the display panel; an insulating layer in the display region and the pad region; and in the pad region: a signal pad electrically connected to the pixel and to a dummy pad; the insulating layer covering the signal pad and the dummy pad and defining an end surface of the insulating layer which is furthest from the display region and exposed outside the display panel; and a first opening in the insulating layer which exposes the signal pad outside the insulating layer and outside the display panel. In the pad region, the end surfaces of the base substrate and the insulating layer together define an inclined edge of the display panel.
    Type: Application
    Filed: February 23, 2021
    Publication date: October 7, 2021
    Inventors: KWANG-CHUL JUNG, YOUNGRAE KIM, DONG-YOON SO, KYUNGMIN PARK, SAMHO IHM, YONGJUN JO
  • Publication number: 20210286456
    Abstract: A display device includes: a first substrate including a display area and a non-display area; a second substrate facing the first substrate; a sealing member disposed in the non-display area and coupling the first substrate to the second substrate; a sensing contact area disposed at an inner side of the sealing member; a sensing signal line disposed in the sensing contact area; a sensing contact pattern disposed in the sensing contact area and electrically connected to the sensing signal line; a control signal line disposed between the first substrate and the sensing signal line; and a shielding pattern disposed between the control signal line and the sensing signal line, the shielding pattern overlapping the control signal line or the sensing signal line.
    Type: Application
    Filed: January 13, 2021
    Publication date: September 16, 2021
    Inventors: Yong Jun JO, Kwang Chul JUNG, Dong Soo KIM, Mi Na KIM
  • Publication number: 20210241677
    Abstract: A display device includes scan lines disposed in a first direction; data lines disposed in a second direction substantially perpendicular to the first direction; and unit pixel regions adjacent to the scan lines and the data lines, each unit pixel region including sub-pixels. A portion of an opening region of at least one of the sub-pixels overlaps a unit pixel region adjacent to a unit pixel region corresponding to the at least one of the sub-pixels, and a side of the opening region of the at least one of the sub-pixels extends in a third direction inclined with respect to each of the first direction and the second direction.
    Type: Application
    Filed: September 1, 2020
    Publication date: August 5, 2021
    Applicant: Samsung Display Co., LTD.
    Inventors: Jin Koo CHUNG, Dong Soo KIM, Taek Ju JUNG, Seong Min KIM, Kyung Soo JANG, Kwang Chul JUNG, Kyung Hyun CHOI
  • Patent number: 11049913
    Abstract: A display device includes a substrate, a light emitting element located on the substrate, an encapsulation layer covering the light emitting element, a sensing electrode located on the encapsulation layer, a first sensing line including a first portion having a first thickness and a second portion having a second thickness, and a second sensing line extended from the sensing electrode. The second sensing line is in contact with the first portion of the first sensing line. The first thickness and the second thickness are substantially the same. The first portion is positioned higher than the second portion from the substrate.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: June 29, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jun Won Choi, Won Mi Hwang, Jun Young Min, Kwang Chul Jung
  • Patent number: 11048352
    Abstract: A display device includes a first substrate having a display area, a non-display area surrounding the display area, and a protruding area. A first sensing pad part is formed in the non-display area adjacent to the protruding area. A circuit element layer is positioned in the display area. A display element layer is positioned on the circuit element layer and includes a light-emitting layer and a second electrode on the light-emitting layer. A second substrate overlaps the first substrate and does not overlap the protruding area. A second sensing pad part is formed on the second substrate to overlap with the first sensing pad part. A sealing member is disposed along a border of the second substrate and attaches the first substrate to the second substrate. The first sensing pad part and the second sensing pad part are disposed between a border of the second electrode and the sealing member.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: June 29, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Soo Kim, Mi Na Kim, Kwang Chul Jung, Yong Jun Jo
  • Patent number: 10957264
    Abstract: A display apparatus with improved aperture ratio and light transmittance is presented. The apparatus has a pixel group that includes a first pixel including first and second sub-regions, a second pixel including third and fourth sub-regions, and a third pixel including fifth and sixth sub-regions. The first, second, and third pixels are sequentially arranged in a first direction and at least two sub-regions of the first, third, and fifth sub-regions have different widths in the first direction. The second, fourth, and sixth sub-regions are sequentially arranged in the first direction, and at least one sub-region of the second, fourth, and sixth sub-regions expands toward an adjacent sub-region in the first direction and has a width greater than a width of the other sub-regions of the second, fourth, and sixth sub-regions in the same pixel group.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: March 23, 2021
    Inventors: Sunhwa Lee, Kwang-chul Jung, Sang-Uk Lim
  • Publication number: 20210064169
    Abstract: A display device includes a first substrate having a display area, a non-display area surrounding the display area, and a protruding area. A first sensing pad part is formed in the non-display area adjacent to the protruding area. A circuit element layer is positioned in the display area. A display element layer is positioned on the circuit element layer and includes a light-emitting layer and a second electrode on the light-emitting layer. A second substrate overlaps the first substrate and does not overlap the protruding area. A second sensing pad part is formed on the second substrate to overlap with the first sensing pad part. A sealing member is disposed along a border of the second substrate and attaches the first substrate to the second substrate. The first sensing pad part and the second sensing pad part are disposed between a border of the second electrode and the sealing member.
    Type: Application
    Filed: April 14, 2020
    Publication date: March 4, 2021
    Inventors: Dong Soo KIM, Mi Na Kim, Kwang Chul Jung, Yong Jun Jo
  • Publication number: 20210043697
    Abstract: A display apparatus includes a display area extending in a first direction and a second direction, first to fourth sub-pixels, and a spacer. The first sub-pixel emits a first color light, and includes first and second sides extending in a third direction inclined at a predetermined angle with the first direction, and third and fourth sides extending in a fourth direction perpendicular to the third direction. The second sub-pixel emits a second color light, and is disposed adjacent to the second side of the first sub-pixel in the fourth direction. The third sub-pixel emits a third color light, and is disposed adjacent to the fourth side of the first sub-pixel in the third direction. The fourth sub-pixel emits the first color light, and is disposed adjacent to the second and third sub-pixels. The spacer is disposed between the first and second sub-pixels and between the third and fourth sub-pixels.
    Type: Application
    Filed: July 17, 2020
    Publication date: February 11, 2021
    Inventors: Mina Kim, Kwang-Chul Jung, Wonkyu Kwak, Dongsoo Kim, Jinkoo Chung, Yongjun Jo, Changsoo Pyon
  • Publication number: 20200105840
    Abstract: A display device includes a substrate, a light emitting element located on the substrate, an encapsulation layer covering the light emitting element, a sensing electrode located on the encapsulation layer, a first sensing line including a first portion having a first thickness and a second portion having a second thickness, and a second sensing line extended from the sensing electrode. The second sensing line is in contact with the first portion of the first sensing line. The first thickness and the second thickness are substantially the same. The first portion is positioned higher than the second portion from the substrate.
    Type: Application
    Filed: May 24, 2019
    Publication date: April 2, 2020
    Inventors: JUN WON CHOI, WON MI HWANG, JUN YOUNG MIN, KWANG CHUL JUNG
  • Patent number: 10580362
    Abstract: A display device includes: first pixels in a first pixel region and connected to first scan lines; second pixels in a second pixel region that is located at a side of the first pixel region and has a width smaller than a width of the first pixel region, and connected to second scan lines; third pixels in a third pixel region that is spaced apart from the second pixel region and has a width smaller than the width of the first pixel region, and connected to third scan lines; a load matching unit in a peripheral region at an outside of the second pixel region and the third pixel region, and configured to match loads of the second scan lines and the third scan lines to that of the first scan lines; and a protection unit connected between the second and third pixels and the load matching unit.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: March 3, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong Sung Park, Min Woo Byun, Kwang Chul Jung, Hyun Joon Kim, Sung Yoon Kim, Hyun Suk Yang, Doo Youl Lee
  • Patent number: 10483341
    Abstract: A display device includes first pixels in a first pixel area and coupled with first scan lines, first scan stage circuits in a first peripheral area outside the first pixel area, and configured to supply a first scan signal to the first scan lines, second pixels in a second pixel area having a width that is less than a width of the first pixel area, and coupled with second scan lines, second scan stage circuits in a second peripheral area outside the second pixel area, and configured to generate a second scan signal, and first load matching units respectively between the second scan stage circuits, and configured to delay the second scan signal, and to supply the delayed second scan signal to the second scan lines.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: November 19, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang Chul Jung, Hyun Joon Kim, Sung Yoon Kim, Hyun Suk Yang, Doo Youl Lee