Patents by Inventor Dong-Eup Lee

Dong-Eup 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: 20240054940
    Abstract: A display device includes: a main display area and a sub-display area having a plurality of transmission parts; a plurality of main pixel electrodes; a plurality of sub-pixel electrodes and a plurality of dummy electrodes in the sub-display area, the dummy electrodes being electrically connected to any one of the main pixel electrodes; and a plurality of connection electrodes connecting any one of the plurality of main pixel electrodes and any one of the plurality of dummy pixel electrodes to each other, wherein the sub-display area includes a first sub-display area having the transmission parts and the sub-pixel electrodes and a second sub-display area having the sub-pixel electrodes and the dummy pixel electrodes, and at least portions of the plurality of connection electrodes are between the dummy pixel electrodes adjacent to each other or between the dummy pixel electrode and the main pixel electrode adjacent to the dummy pixel electrode.
    Type: Application
    Filed: August 1, 2023
    Publication date: February 15, 2024
    Inventors: Jun Young JO, Sang Won SEOK, Seung Woo SUNG, Na Ra ON, Dong Eup LEE, Yun Kyeong IN
  • Publication number: 20230196956
    Abstract: A method includes applying first different voltages to pixels included in a reference pixel column and pixels included in a pad adjacent pixel column electrically connected to a second pad adjacent to a first pad connected to the reference pixel column, and applying second different voltages to the pixels included in the reference pixel column and to pixels included in a line adjacent pixel column electrically connected to a second data line adjacent to a first data line connected to the reference pixel column.
    Type: Application
    Filed: October 27, 2022
    Publication date: June 22, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Dongsun LEE, Wonkyu KWAK, Dong Eup LEE, Dongsoo KIM, Seungwoo SUNG, Mincheol LEE
  • Patent number: 11610960
    Abstract: An organic light emitting diode display device includes a substrate, a pixel structure, a first circuit transistor, a first lower electrode, a first upper electrode, and a planarization layer. The substrate has a display area and a peripheral area including a first circuit area, a second circuit area, and a blocking area positioned between the first and second circuit areas. The pixel structure is in the display area on the substrate. The first circuit transistor is in the first circuit area on the substrate. The first lower electrode is in the blocking area on the substrate. The first upper electrode is on the first lower electrode, and the first upper electrode and the first lower electrode constitute a first capacitor. The planarization layer is on the substrate, and has a first opening that overlaps the first capacitor in the blocking area.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: March 21, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun Won Choi, Dong Eup Lee
  • Patent number: 11493552
    Abstract: A display panel test circuit includes a first transistor connected to a first data line and receiving a red lighting test signal, a second transistor connected to the first data line and receiving a blue lighting test signal, a third transistor connected to a second data line and receiving a first green lighting test signal, a fourth transistor connected to a third data line and receiving the red lighting test signal, a fifth transistor connected to the third data line and receiving the blue lighting test signal, a sixth transistor connected to a fourth data line and receiving a second green lighting test signal, a seventh transistor connected to the second data line and receiving a crack test signal, and an eighth transistor connected to the fourth data line and receiving the crack test signal. The display panel test circuit performs one or more tests on a display panel.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: November 8, 2022
    Inventors: Hwayoung Song, Seungwoo Sung, Dong Eup Lee, Seungji Cha, Kimyeong Eom, Kwangsae Lee
  • Publication number: 20220199744
    Abstract: A display device includes a first scan line spaced apart from a signal transmission region and a second scan line having a portion that is adjacent to the signal transmission region. The second scan line adjacent to the signal transmission region bypasses the signal transmission region. A compensation signal line connects one end of the second scan line and the other end thereof, and results in a decrease in a combined resistance of the second scan line.
    Type: Application
    Filed: September 17, 2021
    Publication date: June 23, 2022
    Inventors: Hyunji Cha, Dong Eup Lee, Hyunji Kang, Young-Soo Yoon, Yun-Kyeong In
  • Publication number: 20210286002
    Abstract: A display panel test circuit includes a first transistor connected to a first data line and receiving a red lighting test signal, a second transistor connected to the first data line and receiving a blue lighting test signal, a third transistor connected to a second data line and receiving a first green lighting test signal, a fourth transistor connected to a third data line and receiving the red lighting test signal, a fifth transistor connected to the third data line and receiving the blue lighting test signal, a sixth transistor connected to a fourth data line and receiving a second green lighting test signal, a seventh transistor connected to the second data line and receiving a crack test signal, and an eighth transistor connected to the fourth data line and receiving the crack test signal. The display panel test circuit performs one or more tests on a display panel.
    Type: Application
    Filed: March 3, 2021
    Publication date: September 16, 2021
    Inventors: HWAYOUNG SONG, SEUNGWOO SUNG, DONG EUP LEE, SEUNGJI CHA, KIMYEONG EOM, KWANGSAE LEE
  • Patent number: 11114014
    Abstract: A display device includes a display unit including first color subpixels, second color subpixels, and third color subpixels, a scan driver for applying scan signals to scan lines connected to the first color subpixels, the second color subpixels, and the third color subpixels, a switch circuit for selecting first data lines connected to the first color subpixels and the second color subpixels for a first section, and selecting second data lines connected to the third color subpixels for a second section after the first section, and a data driver for applying data signals corresponding to the third color subpixels to the switch circuit for a third section between the first section and the second section, and applying data signals corresponding to the first color subpixels and the second color subpixels to the switch circuit for a fourth section after the second section.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: September 7, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Eup Lee, Ji-Hyun Ka, Ki Myeong Eom
  • Publication number: 20210134925
    Abstract: An organic light emitting diode display device includes a substrate, a pixel structure, a first circuit transistor, a first lower electrode, a first upper electrode, and a planarization layer. The substrate has a display area and a peripheral area including a first circuit area, a second circuit area, and a blocking area positioned between the first and second circuit areas. The pixel structure is in the display area on the substrate. The first circuit transistor is in the first circuit area on the substrate. The first lower electrode is in the blocking area on the substrate. The first upper electrode is on the first lower electrode, and the first upper electrode and the first lower electrode constitute a first capacitor. The planarization layer is on the substrate, and has a first opening that overlaps the first capacitor in the blocking area.
    Type: Application
    Filed: July 29, 2020
    Publication date: May 6, 2021
    Inventors: Jun Won CHOI, Dong Eup LEE
  • Patent number: 10909909
    Abstract: A display device includes: a display panel including a gate line, an emission signal line, a data line, and a pixel coupled to the gate line, the emission signal line, and the data line; a gate driver configured to provide a gate signal to the gate line; an emission driver configured to provide an emission signal to the emission signal line; a data driver configured to provide a data signal to the data line; and a power supplier configured to provide the display panel with a power voltage for driving the pixel, wherein the emission driver is configured to start operating at a first time point in response to an emission enable signal provided from the data driver, and the gate driver is configured to start operating at a second time point in response to a gate enable signal provided from the data driver.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: February 2, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Eup Lee, Ki Myeong Eom, Ji Hyun Ka
  • Publication number: 20200286418
    Abstract: A display device includes a display unit including first color subpixels, second color subpixels, and third color subpixels, a scan driver for applying scan signals to scan lines connected to the first color subpixels, the second color subpixels, and the third color subpixels, a switch circuit for selecting first data lines connected to the first color subpixels and the second color subpixels for a first section, and selecting second data lines connected to the third color subpixels for a second section after the first section, and a data driver for applying data signals corresponding to the third color subpixels to the switch circuit for a third section between the first section and the second section, and applying data signals corresponding to the first color subpixels and the second color subpixels to the switch circuit for a fourth section after the second section.
    Type: Application
    Filed: March 3, 2020
    Publication date: September 10, 2020
    Inventors: DONG-EUP LEE, JI-HYUN KA, KI MYEONG EOM
  • Publication number: 20200175912
    Abstract: A display device includes: a display panel including a gate line, an emission signal line, a data line, and a pixel coupled to the gate line, the emission signal line, and the data line; a gate driver configured to provide a gate signal to the gate line; an emission driver configured to provide an emission signal to the emission signal line; a data driver configured to provide a data signal to the data line; and a power supplier configured to provide the display panel with a power voltage for driving the pixel, wherein the emission driver is configured to start operating at a first time point in response to an emission enable signal provided from the data driver, and the gate driver is configured to start operating at a second time point in response to a gate enable signal provided from the data driver.
    Type: Application
    Filed: June 13, 2019
    Publication date: June 4, 2020
    Inventors: Dong Eup LEE, Ki Myeong EOM, Ji Hyun KA
  • Patent number: 9984635
    Abstract: Provided is a display device including a display panel having a display area including a plurality of pixel columns, the display device including: a first pixel column including i pixels (i is a natural number) from among the plurality of pixel columns; a second pixel column including j pixels (j is a different natural number than i) from among the plurality of pixel columns; a first data line connected to the i pixels in the first pixel column, and to k pixels (k is a smaller natural number than j) from among the j pixels in the second pixel column; a second data line connected to j minus k (j-k) pixels from among the j pixels in the second pixel column; and gate lines connected to pixels in the first pixel column and the second pixel column.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: May 29, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventor: Dong Eup Lee
  • Patent number: 9823770
    Abstract: A display apparatus comprises: a display panel configured to display an image; a touch panel disposed on the display panel; and a circuit board electrically connected to each of the display panel and the touch panel, the circuit board including a first surface and a second surface opposite the first surface. The circuit board includes: a first circuit portion including a first connection disposed in the first surface and electrically connected to the display panel; a second circuit portion including a second connection disposed in the second surface and electrically connected to the touch panel; and a bending portion configured to link the first circuit portion to the second circuit portion, and curving in a direction toward the first circuit portion.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: November 21, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Eup Lee, Minhyeng Lee
  • Patent number: 9754537
    Abstract: An organic light emitting display device includes a scan driver progressively supplying a scan signal to scan lines, a data driver supplying data signals to output lines of the data driver during a period in which the scan signal is supplied, and demultiplexers respectively coupled to the output lines of the data driver, and supplying the data signals to data lines, each demultiplexer including first switches, each first switch being coupled between an output line of the data driver and a data line among a first set of data lines, and a second switch coupled between a first initialization power source and a data line among a second set of data lines, wherein the first set of data lines includes the second set of data lines and at least one other data line.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: September 5, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Eup Lee, Hyoung-Sik Moon
  • Publication number: 20160117041
    Abstract: A display apparatus comprises: a display panel configured to display an image; a touch panel disposed on the display panel; and a circuit board electrically connected to each of the display panel and the touch panel, the circuit board including a first surface and a second surface opposite the first surface. The circuit board includes: a first circuit portion including a first connection disposed in the first surface and electrically connected to the display panel; a second circuit portion including a second connection disposed in the second surface and electrically connected to the touch panel; and a bending portion configured to link the first circuit portion to the second circuit portion, and curving in a direction toward the first circuit portion.
    Type: Application
    Filed: July 9, 2015
    Publication date: April 28, 2016
    Inventors: Dong Eup LEE, Minhyeng LEE
  • Publication number: 20150228702
    Abstract: Provided is a display device including a display panel having a display area including a plurality of pixel columns, the display device including: a first pixel column including i pixels (i is a natural number) from among the plurality of pixel columns; a second pixel column including j pixels (j is a different natural number than i) from among the plurality of pixel columns; a first data line connected to the i pixels in the first pixel column, and to k pixels (k is a smaller natural number than j) from among the j pixels in the second pixel column; a second data line connected to j minus k (j-k) pixels from among the j pixels in the second pixel column; and gate lines connected to pixels in the first pixel column and the second pixel column.
    Type: Application
    Filed: December 17, 2014
    Publication date: August 13, 2015
    Inventor: Dong Eup Lee
  • Patent number: 9007340
    Abstract: A display device includes a first substrate, a display unit located at the first substrate for displaying an image, a first pad unit coupled with the display unit and located at an end side of the first substrate in a first direction, and a second substrate on the first substrate and having an opening exposing the first pad unit, the second substrate including a protruding portion covering a portion of the first substrate and neighboring the opening in a second direction crossing the first direction, wherein the display unit is between the second substrate and the first substrate.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: April 14, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Dong-Eup Lee
  • Publication number: 20140146030
    Abstract: An organic light emitting display device includes a scan driver progressively supplying a scan signal to scan lines, a data driver supplying data signals to output lines of the data driver during a period in which the scan signal is supplied, and demultiplexers respectively coupled to the output lines of the data driver, and supplying the data signals to data lines, each demultiplexer including first switches, each first switch being coupled between an output line of the data driver and a data line among a first set of data lines, and a second switch coupled between a first initialization power source and a data line among a second set of data lines, wherein the first set of data lines includes the second set of data lines and at least one other data line.
    Type: Application
    Filed: July 5, 2013
    Publication date: May 29, 2014
    Inventors: Dong-Eup LEE, Hyoung-Sik MOON
  • Publication number: 20130335368
    Abstract: A display device includes a first substrate, a display unit located at the first substrate for displaying an image, a first pad unit coupled with the display unit and located at an end side of the first substrate in a first direction, and a second substrate on the first substrate and having an opening exposing the first pad unit, the second substrate including a protruding portion covering a portion of the first substrate and neighboring the opening in a second direction crossing the first direction, wherein the display unit is between the second substrate and the first substrate.
    Type: Application
    Filed: January 31, 2013
    Publication date: December 19, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventor: Dong-Eup Lee