Patents by Inventor Hyun-Chol Bang

Hyun-Chol Bang 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: 10796636
    Abstract: A display device includes a first pixel region including a plurality of first pixels and a plurality of first gate control lines coupled to the first pixels, and a second pixel region spaced apart from the first pixel region. The second pixel region includes a plurality of second pixels and a plurality of second gate control lines coupled to the second pixels. The display device further includes a first non-pixel region disposed between the first pixel region and the second pixel region, and a first coupling line disposed in the first non-pixel region. The first coupling line commonly couples at least two first gate control lines and at least two second gate control lines.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: October 6, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Mi Hae Kim, Min Kyu Woo, Young Taeg Jung, Hyun Chol Bang, Sang Won Seok, Hwan Soo Jang, Ju Hee Hyeon
  • Publication number: 20200303488
    Abstract: An organic light emitting diode display includes a lower substrate, a sub-pixel structure, an upper substrate, a sealant, and a first power supply wire. The lower substrate has a display area, a peripheral area, and a pad area. The sub-pixel structure is disposed in the display area on the lower substrate. The upper substrate is disposed on the sub-pixel structure. The sealant is disposed in the peripheral area between the lower substrate and the upper substrate. The first power supply wire is disposed between the lower substrate and the sealant, and overlaps the lower substrate and the sealant. The first power supply wire includes a first protrusion protruding in a first direction that is a direction from the pad area to the display area in the first peripheral area.
    Type: Application
    Filed: February 19, 2020
    Publication date: September 24, 2020
    Inventors: BONGWON LEE, Yanghee KIM, HYUN-CHOL BANG, SUJIN LEE
  • Publication number: 20200279901
    Abstract: A display device includes signal lines and pixels connected thereto. A first pixel includes a first transistor including a first gate electrode, a first channel region overlapping the first gate electrode, a first source region, and a second drain region facing the first source region, with the first channel region interposed between the first source region and the second drain region. A third transistor includes a third gate electrode, a third channel region overlapping the third gate electrode, a third drain region connected to the first gate electrode, and a third source region facing the third drain region with the third channel region interposed between the third source region and the third drain region. A shielding part overlaps a boundary between the third source region and the third channel region and does not overlap a boundary between the third drain region and the third channel region.
    Type: Application
    Filed: May 18, 2020
    Publication date: September 3, 2020
    Inventors: JUN WON CHOI, DONG SOO KIM, HYUN-CHOL BANG, CHANG SOO PYON, JI-EUN LEE
  • Patent number: 10762852
    Abstract: A display device includes: a substrate including first and second display regions and first and second non-display regions; a plurality of first pixels in the first display region; a plurality of second pixels in the second display region; a plurality of first scan stage circuits in the first non-display region, the first scan stage circuits configured to provide a scan signal to the first pixels; a plurality of second scan stage circuits in the second non-display region, the second scan stage circuits configured to provide a scan signal to the second pixels; a plurality of dummy scan stage circuits in the second non-display region, the dummy scan stage circuits being between the second scan stage circuits; and a scan bridge line in the second non-display region, the scan bridge line connecting one second scan stage circuit among the second scan stage circuits and a dummy scan stage circuit adjacent thereto.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: September 1, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Taeg Jung, Hyun Chol Bang, Ju Hee Hyeon
  • Publication number: 20200243015
    Abstract: An organic light emitting diode display with improved aperture ratio includes: a substrate; first and second pixels disposed in a first row of the substrate and third and fourth pixels disposed in a second row adjacent to the first row and respectively disposed in the same columns as the first and second pixels; a scan line and a previous scan line applying a scan signal and a previous scan signal, respectively, to the pixel units; a data line and a driving voltage line applying a data signal and a driving voltage, respectively, to the pixel units; and a common initialization voltage line disposed between the first and second pixels and between the third and fourth pixels, commonly connected to the pixel units, and applying an initialization voltage. One common initialization contact hole connected to all pixels units and one initialization voltage line connected to the common initialization contact hole are surrounded by the pixel units.
    Type: Application
    Filed: April 14, 2020
    Publication date: July 30, 2020
    Inventors: Ju-Hee HYEON, Hyun-Chol BANG
  • Publication number: 20200227508
    Abstract: An exemplary embodiment of the present invention provides a display device including a first display area having a plurality of first pixel regions and a second display area having both a plurality of second pixel regions and a plurality of light transmissive regions. The second display area includes a plurality of scan lines. The second pixel region includes a plurality of pixel electrodes and a voltage line disposed on a same layer as the pixel electrodes. The voltage line overlaps the scan line to be parallel therewith in the light transmissive region.
    Type: Application
    Filed: January 10, 2020
    Publication date: July 16, 2020
    Inventors: Dong Wook Kim, Won Kyu Kwak, Jin Woo Park, Hyun-Chol Bang, Sun-Ja Kwon, Jeong Woo Park
  • Publication number: 20200211474
    Abstract: A display device includes: scan, control, and emission control signal lines, signals transmitted thereby being different from one another; data and driving voltage lines; a first transistor including a first gate electrode and first source and drain; a second transistor including a second gate electrode connected to a first scan line, a second source connected to a first data line, and a second drain connected to the first source; a light-emitting element; a control transistor including a control gate electrode connected to a first control line and between the driving voltage line and the first source or the light-emitting element and the first drain; and an emission control transistor in series between the light-emitting element and the control transistor, the control transistor and the first transistor, or the driving voltage line and the control transistor, and an emission control gate electrode connected to the emission control signal line.
    Type: Application
    Filed: December 23, 2019
    Publication date: July 2, 2020
    Inventors: Sung Hwan KIM, Chul Kyu KANG, Hyun-Chol BANG, Soo Hee OH, Dong Sun LEE
  • Publication number: 20200194730
    Abstract: A display device includes a window, an anti-reflector disposed under the window, the anti-reflector including: a first area having a first transmittance; and a second area having a second transmittance higher than the first transmittance, and a display panel disposed under the anti-reflector, the display panel including: a first display area having a first resolution; and a second display area having a second resolution lower than the first resolution. The second area overlaps with the second display area in a plan view.
    Type: Application
    Filed: December 18, 2019
    Publication date: June 18, 2020
    Inventors: Jinwoo PARK, Wonkyu KWAK, Dongwook KIM, Hyun-Chol BANG
  • Publication number: 20200161399
    Abstract: A display device including a display panel including a plurality of transistors and displaying an image on a front surface thereof; and a sensing module on a rear surface of the display panel, wherein the display panel includes a first region that overlaps the sensing module and a second region that does not overlap the sensing module, a W/L ratio of one of the transistors in the first region is greater than a W/L ratio of another of the transistors in the second region, the W/L ratio being obtained by dividing a width of a channel of the transistor by a length of the channel.
    Type: Application
    Filed: November 15, 2019
    Publication date: May 21, 2020
    Inventors: Jin Woo PARK, Won Kyu KWAK, Dong Wook KIM, Hyun-Chol BANG
  • Patent number: 10658448
    Abstract: A display device includes signal lines and pixels connected thereto. A first pixel includes a first transistor including a first gate electrode, a first channel region overlapping the first gate electrode, a first source region, and a second drain region facing the first source region, with the first channel region interposed between the first source region and the second drain region. A third transistor includes a third gate electrode, a third channel region overlapping the third gate electrode, a third drain region connected to the first gate electrode, and a third source region facing the third drain region with the third channel region interposed between the third source region and the third drain region. A shielding part overlaps a boundary between the third source region and the third channel region and does not overlap a boundary between the third drain region and the third channel region.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: May 19, 2020
    Assignee: SAMSUNG CO., LTD.
    Inventors: Jun Won Choi, Dong Soo Kim, Hyun-Chol Bang, Chang Soo Pyon, Ji-Eun Lee
  • Publication number: 20200133040
    Abstract: A display device includes a first display area including a plurality of first pixel areas and a second display area including a plurality of second pixel areas and a plurality of light transmitting areas. Each of the plurality of first pixel areas includes at least one first pixel to display an image. Each of the plurality of second pixel areas includes at least one second pixel to display the image. The light transmitting area does not include a pixel capable of displaying the image and has higher light transmittance than the second pixel area. In the second display area, at least one of the plurality of light transmitting areas is between two second pixel areas adjacent in a first direction, and at least one of the plurality of light transmitting areas is between two second pixel areas adjacent in a second direction different from the first direction.
    Type: Application
    Filed: October 18, 2019
    Publication date: April 30, 2020
    Inventors: Hyun-Chol BANG, Won Kyu KWAK, Dong Wook KIM, Jin Woo PARK, Sun-Ja KWON
  • Publication number: 20200135814
    Abstract: A display device includes a display panel including a first region and a second region, and a sensing module on a rear side of the display panel. The first region includes a first pixel area to display an image. The second region includes a second pixel area to display the image and a transmission area to transmit light output by the sensing module. The second region overlaps the sensing module. The second pixel area overlaps a first layer that blocks light output by the sensing module. The transmission area does not overlap the first layer.
    Type: Application
    Filed: October 25, 2019
    Publication date: April 30, 2020
    Inventors: Jin Woo PARK, Won Kyu KWAK, Dong Wook KIM, Hyun-Chol BANG
  • Publication number: 20200124927
    Abstract: A display device includes a substrate including a first display area and a second display area. The first display area includes first pixel areas, each including one or more first pixels. The second display area includes second pixel areas including one or more second pixels and a light transmittance area having a higher light transmittance than the second pixel area. The first and second display areas include a common electrode that transmits a constant common voltage. The common electrode in the second display area includes patterned regions that correspond to a first light transmittance area included in the light transmittance area. A thickness of the common electrode in the patterned regions is smaller than a thickness of the common electrode in a region other than the patterned regions or equals zero. The patterned regions and the second pixel areas extend alternately along a first direction in the second display area.
    Type: Application
    Filed: October 18, 2019
    Publication date: April 23, 2020
    Inventors: Dong Wook KIM, Won Kyu KWAK, Jin Woo PARK, Hyun-Chol BANG
  • Patent number: 10621918
    Abstract: An organic light emitting diode display with improved aperture ratio includes: a substrate; first and second pixels disposed in a first row of the substrate and third and fourth pixels disposed in a second row adjacent to the first row and respectively disposed in the same columns as the first and second pixels; a scan line and a previous scan line applying a scan signal and a previous scan signal, respectively, to the pixel units; a data line and a driving voltage line applying a data signal and a driving voltage, respectively, to the pixel units; and a common initialization voltage line disposed between the first and second pixels and between the third and fourth pixels, commonly connected to the pixel units, and applying an initialization voltage. One common initialization contact hole connected to all pixels units and one initialization voltage line connected to the common initialization contact hole are surrounded by the pixel units.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: April 14, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ju-Hee Hyeon, Hyun-Chol Bang
  • Publication number: 20200111426
    Abstract: A display device is disclosed. In one aspect, the display device includes a data driver configured to generate an output signal corresponding to input image data, a signal divider configured to divide the output signal into a plurality of data signals, and provide the data signals to a plurality of pixels and a display unit including a matrix of pixels configured to receive the data signals. The signal divider includes a first via hole formed over a first source/drain wire configured to receive a driving voltage of each pixel, a second via hole formed over a second source/drain wire of the pixel and a pixel wire electrically connecting the first and second source/drain wires to each other respectively through the first via hole and the second via hole.
    Type: Application
    Filed: December 9, 2019
    Publication date: April 9, 2020
    Inventors: SEUNG WOO SUNG, HYUN-CHOL BANG
  • Publication number: 20200105849
    Abstract: A display device includes a substrate, pixels each including at least one transistor, a storage capacitor connected to the at least one transistor, and a light emitting element connected to the at least one transistor, scan lines connected to each of the pixels, a data line connected to each of the pixels, and a power line supplying a first power voltage to the light emitting element. The power line includes a first conductive pattern that extends in a first direction, and is provided on a first insulating interlayer, a second conductive pattern that extends in the first direction, is provided on a second insulating interlayer, and is connected to the first conductive pattern through a first contact hole, and a third conductive pattern that extends in a second direction, is provided on a third insulating interlayer, and is connected to the second conductive pattern through a second contact hole.
    Type: Application
    Filed: September 12, 2019
    Publication date: April 2, 2020
    Inventors: Kyung Hoon KIM, Won Kyu KWAK, Mi Hae KIM, Hyun Chol BANG, Ki Myeong EOM, Jae Sic LEE
  • Patent number: 10504449
    Abstract: A display device is disclosed. In one aspect, the display device includes a data driver configured to generate an output signal corresponding to input image data, a signal divider configured to divide the output signal into a plurality of data signals, and provide the data signals to a plurality of pixels and a display unit including a matrix of pixels configured to receive the data signals. The signal divider includes a first via hole formed over a first source/drain wire configured to receive a driving voltage of each pixel, a second via hole formed over a second source/drain wire of the pixel and a pixel wire electrically connecting the first and second source/drain wires to each other respectively through the first via hole and the second via hole.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: December 10, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Woo Sung, Hyun-Chol Bang
  • Publication number: 20190318693
    Abstract: A display device includes: a substrate including first and second display regions and first and second non-display regions; a plurality of first pixels in the first display region; a plurality of second pixels in the second display region; a plurality of first scan stage circuits in the first non-display region, the first scan stage circuits configured to provide a scan signal to the first pixels; a plurality of second scan stage circuits in the second non-display region, the second scan stage circuits configured to provide a scan signal to the second pixels; a plurality of dummy scan stage circuits in the second non-display region, the dummy scan stage circuits being between the second scan stage circuits; and a scan bridge line in the second non-display region, the scan bridge line connecting one second scan stage circuit among the second scan stage circuits and a dummy scan stage circuit adjacent thereto.
    Type: Application
    Filed: April 17, 2019
    Publication date: October 17, 2019
    Inventors: Young Taeg JUNG, Hyun Chol BANG, Ju Hee HYEON
  • Publication number: 20190288051
    Abstract: A display device includes signal lines and pixels connected thereto. A first pixel includes a first transistor including a first gate electrode, a first channel region overlapping the first gate electrode, a first source region, and a second drain region facing the first source region, with the first channel region interposed between the first source region and the second drain region. A third transistor includes a third gate electrode, a third channel region overlapping the third gate electrode, a third drain region connected to the first gate electrode, and a third source region facing the third drain region with the third channel region interposed between the third source region and the third drain region. A shielding part overlaps a boundary between the third source region and the third channel region and does not overlap a boundary between the third drain region and the third channel region.
    Type: Application
    Filed: May 24, 2019
    Publication date: September 19, 2019
    Inventors: Jun Won Choi, Dong Soo Kim, Hyun-Chol Bang, Chang Soo Pyon, Ji-Eun Lee
  • Publication number: 20190288053
    Abstract: A flat panel display includes a substrate including a display region and a non-display region disposed outside of the display region, a display unit disposed in the display region that displays an image, a plurality of first pads disposed in the non-display region that receive driving signals for driving the display unit, a plurality of second pads disposed in the non-display region that receive inspection signals for inspecting the display unit, a plurality of third pads disposed in the non-display region that receive alignment confirmation signals for confirming alignment, and a resistor coupled between at least two third pads of the plurality of third pads.
    Type: Application
    Filed: October 16, 2018
    Publication date: September 19, 2019
    Inventors: YOUNG TAEG JUNG, SEUNG KYU LEE, HYUN WOONG KIM, HYUN CHOL BANG