Patents by Inventor Jae-Sic Lee

Jae-Sic 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: 20260087987
    Abstract: An electronic device includes a light emitting element, a data line, a pixel circuit, and a plurality of scan lines. The plurality of scan lines include an initializing scan line and a write scan line. The pixel circuit includes a first transistor including a first gate electrode, a second transistor including a second gate electrode receiving the write scan signal and connected to the data line, and a third transistor receiving the initializing scan signal and connected to the first gate electrode. The initializing scan line, the write scan line, and the first gate electrode are disposed on different layers from each other.
    Type: Application
    Filed: July 23, 2025
    Publication date: March 26, 2026
    Inventors: HYUNAE PARK, Minki YANG, JAE-SIC LEE
  • Publication number: 20250372037
    Abstract: A display device includes a first pixel connected to a first scan line which transmits a first scan signal and a first data line, a second pixel connected to the first scan line and a second data line, a data driver including an output buffer which outputs a data signal to an output line, and a demultiplexer including a first transistor connected between the first data line and the output line and turned-on in response to a first control signal, and a second transistor connected between the second data line and the output line and turned-on in response to a second control signal. A difference between a turn-on voltage level and a turn-off voltage level of each of the first and second control signals is less than a difference between a turn-on voltage level and a turn-off voltage level of the first scan signal.
    Type: Application
    Filed: March 14, 2025
    Publication date: December 4, 2025
    Applicant: Samsung Display Co., LTD.
    Inventors: MINJOO KIM, CHULKYU KANG, MINWOO BYUN, SEONI JEONG, JI-HYUN KA, WONKYU KWAK, KYONGHWAN OH, JAE-SIC LEE
  • Patent number: 11637164
    Abstract: A display device includes a display panel including pixels. One of the pixels includes a light emitting diode, a first capacitor connected between a power line receiving a power supply voltage and a first reference node, a first transistor connected between the power line and an anode of the light emitting diode, a second transistor connected between a data line and a first electrode of the first transistor, a third transistor including a plurality of sub-transistors connected between a second electrode of the first transistor and the first reference node in series, and a fourth transistor connected to a second reference node among a plurality of second reference nodes between the sub-transistors and receiving an initialization scan signal.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: April 25, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Wonkyu Kwak, Jae-Sic Lee, Wonse Lee, Jinhee Jang
  • Patent number: 11581393
    Abstract: An electronic apparatus includes a base substrate having a first region, a second region at least partially surrounded by the first region, and a display region at least partially surrounding the first region, a plurality of pixels disposed on the base substrate, each of which includes a transistor and a light emitting element connected to the transistor, a hole line connecting pixels with the second region interposed therebetween, and a hole pattern electrically insulated from the hole line, disposed in the first region, and at least partially surrounding the second region.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: February 14, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Wonkyu Kwak, Jinhee Jang, Jae-Sic Lee, Minchae Kwak, Byungsun Kim, Hansol Kim, Changsoo Pyon, Jae Yong Lee, Jae-Ho Choi
  • Patent number: 11302262
    Abstract: An organic light-emitting display device includes: a data driver configured to divide one frame into an odd-numbered sub-frame and an even-numbered sub-frame, to divide frame data for implementing the one frame into odd-numbered sub-frame data and even-numbered sub-frame data, to provide the odd-numbered sub-frame data to the data lines in the odd-numbered sub-frame, and to provide the even-numbered sub-frame data to the data lines in the even-numbered sub-frame; an odd-numbered scan driver electrically connected to odd-numbered scan lines to provide an odd-numbered scan signal to the odd-numbered scan lines in the odd-numbered sub-frame; an even-numbered scan driver electrically connected to even-numbered scan lines to provide an even-numbered scan signal to the even-numbered scan lines in the even-numbered sub-frame; an emission driver to provide an emission signal to emission line groups formed by grouping the emission lines by two adjacent emission lines in the odd-numbered sub-frame and the even-numbered
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: April 12, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hai-Jung In, Won Kyu Kwak, Jae-Sic Lee
  • Publication number: 20220069044
    Abstract: A display device includes a display panel including pixels. One of the pixels includes a light emitting diode, a first capacitor connected between a power line receiving a power supply voltage and a first reference node, a first transistor connected between the power line and an anode of the light emitting diode, a second transistor connected between a data line and a first electrode of the first transistor, a third transistor including a plurality of sub-transistors connected between a second electrode of the first transistor and the first reference node in series, and a fourth transistor connected to a second reference node among a plurality of second reference nodes between the sub-transistors and receiving an initialization scan signal.
    Type: Application
    Filed: May 19, 2021
    Publication date: March 3, 2022
    Inventors: WONKYU KWAK, JAE-SIC LEE, WONSE LEE, JINHEE JANG
  • Publication number: 20220037451
    Abstract: An electronic apparatus includes a base substrate having a first region, a second region at least partially surrounded by the first region, and a display region at least partially surrounding the first region, a plurality of pixels disposed on the base substrate, each of which includes a transistor and a light emitting element connected to the transistor, a hole line connecting pixels with the second region interposed therebetween, and a hole pattern electrically insulated from the hole line, disposed in the first region, and at least partially surrounding the second region.
    Type: Application
    Filed: July 1, 2021
    Publication date: February 3, 2022
    Inventors: WONKYU KWAK, Jinhee Jang, Jae-Sic Lee, Minchae Kwak, Byungsun Kim, Hansol Kim, Changsoo Pyon, Jae Yong Lee, Jae-Ho Choi
  • Publication number: 20210166635
    Abstract: An organic light-emitting display device includes: a data driver configured to divide one frame into an odd-numbered sub-frame and an even-numbered sub-frame, to divide frame data for implementing the one frame into odd-numbered sub-frame data and even-numbered sub-frame data, to provide the odd-numbered sub-frame data to the data lines in the odd-numbered sub-frame, and to provide the even-numbered sub-frame data to the data lines in the even-numbered sub-frame; an odd-numbered scan driver electrically connected to odd-numbered scan lines to provide an odd-numbered scan signal to the odd-numbered scan lines in the odd-numbered sub-frame; an even-numbered scan driver electrically connected to even-numbered scan lines to provide an even-numbered scan signal to the even-numbered scan lines in the even-numbered sub-frame; an emission driver to provide an emission signal to emission line groups formed by grouping the emission lines by two adjacent emission lines in the odd-numbered sub-frame and the even-numbered
    Type: Application
    Filed: November 30, 2020
    Publication date: June 3, 2021
    Inventors: Hai-Jung IN, Won Kyu KWAK, Jae-Sic LEE
  • Patent number: 10410582
    Abstract: A display panel includes a displaying area including pixels, a non-displaying area including a dummy pixel, and a switching circuit to transfer a data signal to the dummy pixel in response to a control signal. The display panel may compensate for defective pixels located in different data lines using only one dummy pixel column and may minimize an area (e.g., a dead space) including the dummy pixel column by including a distributor buffering a signal of an output line and a switching circuit selecting/providing a portion of a signal of the output line to a dummy data line.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: September 10, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Sic Lee, Jung-Hoon Shim
  • Patent number: 10373566
    Abstract: An organic light emitting diode (OLED) display device includes a display panel including a plurality of pixel rows; a driving circuit configured to: provide a first display data to the plurality of pixel rows in a normal mode; provide a second display data including black data to the plurality of pixel rows in a dimming mode, in response to a mode signal; and decrease a second luminance of the display panel in the dimming mode to a level lower than a first luminance of the display panel in the normal mode; and a power supply configured to apply a lower power supply voltage and a high power supply voltage to the display panel, the power supply providing the mode signal.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: August 6, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Sic Lee, Jin-Woo Park
  • Patent number: 10170048
    Abstract: A pixel and an organic light-emitting diode (OLED) display having the same are disclosed. In one aspect, a pixel includes an OLED including an anode and a cathode and configured to emit light corresponding to data signals applied during first and second frame periods. Each of the first and second frame periods includes a first discharge period and a light-emitting period subsequent to the first discharge period. The pixel also includes a pixel circuit configured to control light emission of the OLED, apply a first voltage to the anode during the light-emitting period, apply a second voltage to the cathode, the second voltage having a voltage level less than that of the first voltage, and apply a third voltage to the anode so as to discharge the anode during the first discharge period. The second voltage has different voltage levels during the first and second frame periods.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: January 1, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Sic Lee, Seung-Kyu Lee
  • Patent number: 10121415
    Abstract: An OLED display according to an exemplary embodiment of the present disclosure includes: a substrate; a scan line on the substrate and configured to transmit a scan signal; a data line crossing the scan line and configured to transmit a data voltage; a driving voltage line crossing the scan line and configured to transmit a driving voltage, a portion of the driving voltage line being a second storage electrode; a switching transistor connected to the scan line and the data line; a driving transistor connected to the switching transistor and including a driving gate electrode; a driving connecting member connected to the driving gate electrode; a first storage electrode, the second storage electrode overlapping the first storage electrode; a shielding member connected to the second storage electrode and between the driving connecting member and the data line; and an organic light emitting diode connected to the driving transistor.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: November 6, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Sun Lee, Dong-Hwi Kim, Jae-Sic Lee
  • Publication number: 20180012542
    Abstract: A display panel includes a displaying area including pixels, a non-displaying area including a dummy pixel, and a switching circuit to transfer a data signal to the dummy pixel in response to a control signal. The display panel may compensate for defective pixels located in different data lines using only one dummy pixel column and may minimize an area (e.g., a dead space) including the dummy pixel column by including a distributor buffering a signal of an output line and a switching circuit selecting/providing a portion of a signal of the output line to a dummy data line.
    Type: Application
    Filed: June 19, 2017
    Publication date: January 11, 2018
    Inventors: Jae-Sic Lee, Jung-Hoon Shim
  • Publication number: 20160379569
    Abstract: A pixel and an organic light-emitting diode (OLED) display having the same are disclosed. In one aspect, a pixel includes an OLED including an anode and a cathode and configured to emit light corresponding to data signals applied during first and second frame periods. Each of the first and second frame periods includes a first discharge period and a light-emitting period subsequent to the first discharge period. The pixel also includes a pixel circuit configured to control light emission of the OLED, apply a first voltage to the anode during the light-emitting period, apply a second voltage to the cathode, the second voltage having a voltage level less than that of the first voltage, and apply a third voltage to the anode so as to discharge the anode during the first discharge period. The second voltage has different voltage levels during the first and second frame periods.
    Type: Application
    Filed: September 13, 2016
    Publication date: December 29, 2016
    Inventors: Jae-Sic Lee, Seung-Kyu Lee
  • Patent number: 9530519
    Abstract: A scan driver and a display device including the scan driver are provided. The scan driver is configured to drive a plurality of pixels with a plurality of gate signals and includes a plurality of stages, each of the stages including one or more regions, each of the regions including: a plurality of sub-drivers configured to generate ones of the gate signals and to transmit the ones of the gate signals to ones of the pixels; and a driver commonly coupled to the sub-drivers and configured to concurrently supply a common signal to each of the sub-drivers, the driver of one of the one or more regions being configured to receive the common signal of one of the one or more regions of a previous one of the stages during forward direction driving or of a next one of the stages during reverse direction driving.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: December 27, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Sic Lee, Hyun Lee
  • Patent number: 9460662
    Abstract: A pixel and an organic light-emitting diode (OLED) display having the same are disclosed. In one aspect, a pixel includes an OLED including an anode and a cathode and configured to emit light corresponding to data signals applied during first and second frame periods. Each of the first and second frame periods includes a first discharge period and a light-emitting period subsequent to the first discharge period. The pixel also includes a pixel circuit configured to control light emission of the OLED, apply a first voltage to the anode during the light-emitting period, apply a second voltage to the cathode, the second voltage having a voltage level less than that of the first voltage, and apply a third voltage to the anode so as to discharge the anode during the first discharge period. The second voltage has different voltage levels during the first and second frame periods.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: October 4, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Sic Lee, Seung-Kyu Lee
  • Publication number: 20160240146
    Abstract: An organic light emitting diode (OLED) display device includes a display panel including a plurality of pixel rows; a driving circuit configured to: provide a first display data to the plurality of pixel rows in a normal mode; provide a second display data including black data to the plurality of pixel rows in a dimming mode, in response to a mode signal; and decrease a second luminance of the display panel in the dimming mode to a level lower than a first luminance of the display panel in the normal mode; and a power supply configured to apply a lower power supply voltage and a high power supply voltage to the display panel, the power supply providing the mode signal.
    Type: Application
    Filed: July 24, 2015
    Publication date: August 18, 2016
    Inventors: Jae-Sic Lee, Jin-Woo Park
  • Patent number: 9412307
    Abstract: An organic light emitting diode (OLED) display includes a display unit including a plurality of pixels connected to a plurality of data lines, a plurality of scan lines, a plurality of initializing control lines, and a plurality of light emission control lines, a scan driver to output scan signals to the scan lines and initializing signals to the initializing control lines, and a data driver to output data signals to respective ones of the data lines. A first pixel and a second pixel may be commonly connected to a scan line and a data line. The scan driver may output at least one first initializing signal and at least one second initializing signal to the first pixel and second pixel, respectively. The scan signals and the first and the second initializing signals may be activated at different points in time.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: August 9, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sun-Ja Kwon, Jae-Sic Lee
  • Publication number: 20160210905
    Abstract: An OLED display according to an exemplary embodiment of the present disclosure includes: a substrate; a scan line on the substrate and configured to transmit a scan signal; a data line crossing the scan line and configured to transmit a data voltage; a driving voltage line crossing the scan line and configured to transmit a driving voltage, a portion of the driving voltage line being a second storage electrode; a switching transistor connected to the scan line and the data line; a driving transistor connected to the switching transistor and including a driving gate electrode; a driving connecting member connected to the driving gate electrode; a first storage electrode, the second storage electrode overlapping the first storage electrode; a shielding member connected to the second storage electrode and between the driving connecting member and the data line; and an organic light emitting diode connected to the driving transistor.
    Type: Application
    Filed: October 21, 2015
    Publication date: July 21, 2016
    Inventors: Dong Sun Lee, Dong-Hwi Kim, Jae-Sic Lee
  • Patent number: 9391125
    Abstract: An organic light emitting diode display includes a substrate having a display unit and a peripheral portion, scan lines in a first direction, data lines in a second direction, pixels in the display unit and having pixel circuit portions and organic light emitting diodes, first dummy lines in the display unit and extending in the first direction, at least one second dummy line in the peripheral portion and extending in the second direction, dummy circuit portions connected to a first dummy line and the at least one second dummy line, driving pads connected to end portions of the data lines, at least one dummy driving pad connected to an end portion of the at least one second dummy line, and a driving circuit configured to transmit a data signal to the driving pads and to the at least one dummy driving pad.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: July 12, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae Gon Kim, Se-Ho Kim, Jae-Sic Lee