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: 20180284926
    Abstract: A touch sensor may include a substrate and may include electrode units, first demultiplexers, second demultiplexers, and driving pads all located on the substrate. The electrode units each may include a plurality of electrode groups, the electrode groups each including a plurality of touch electrodes. The first demultiplexers each may include a plurality of sub-demultiplexers and each may be electrically connected to a corresponding one of the electrode units. Each of the sub-demultiplexers of a first demultiplexer may be electrically connected to a corresponding one of the electrode groups of a corresponding electrode unit. The second demultiplexers may be connected between the first demultiplexers and the driving pads.
    Type: Application
    Filed: March 29, 2018
    Publication date: October 4, 2018
    Inventors: Hwa Jeong Kim, Jae Sic Lee, Na Yun Kwak, Dong Hwan Kim, Seung Woo Sung, Min Kyu Woo, Min Ku Lee, Seong Jun Lee, Sang Jin Pak, Sang Hyun Jun
  • Publication number: 20180197482
    Abstract: A display device including a display area, first-group pixels and first-group scan lines in a first pixel area, second-group pixels and second-group scan lines in a second pixel area, third-group pixels and third-group scan lines in a third pixel area, a first scan driver to drive the first-group scan lines, a second scan driver to drive the second-group scan lines, and a third scan driver to drive the third-group scan lines, wherein the second scan driver sequentially drives the second-group scan lines during one frame period, and the first and third scan drivers alternately drive the first-group scan lines and the third-group scan lines while the second-group scan lines are driven, and wherein at least one of the first and third scan drivers repeatedly drives at least some of the first-group scan lines and the third-group scan lines two times or more during said one frame period.
    Type: Application
    Filed: January 8, 2018
    Publication date: July 12, 2018
    Inventors: Sang Moo CHOI, Min Kyu WOO, Jae Sic LEE
  • Publication number: 20180197481
    Abstract: A display device includes first pixels in a first pixel area, a first scan driver configured to supply first scan signals to first scan lines, second pixels in a second pixel area, a second scan driver configured to supply second scan signals to second scan lines, third pixels in a third pixel area, a third scan driver configured to supply third scan signals to third scan lines, and a timing controller configured to supply a first start signal to the first scan driver, a second start signal to the second scan driver, and a third start signal to the third scan driver, wherein an order in which the first, second, and third start signal are supplied in a first mode, and an order in which the first, second, and third start signal are supplied in a second mode that is different from the first mode, are different from each other.
    Type: Application
    Filed: January 8, 2018
    Publication date: July 12, 2018
    Inventors: Sang Moo CHOI, Min Woo BYUN, Chae Han HYUN, Min Kyu WOO, Jae Du NOH, Jae Sic LEE, Seung Yeon CHO
  • Publication number: 20180158409
    Abstract: A display device includes: a pixel unit including first pixels in a first pixel region, second pixels in a second pixel region, and third pixels in a third pixel region; a first scan driver configured to drive first scan lines coupled to the first pixels; a second scan driver configured to drive second scan lines coupled to the second pixels; and a third scan driver configured to drive third scan lines coupled to the third pixels, wherein the first scan driver, the second scan driver, and the third scan driver differently set a supply order of a scan signal supplied to the first scan lines, the second scan lines, and the third scan lines, corresponding to a first mode and a second mode different from the first mode.
    Type: Application
    Filed: December 7, 2017
    Publication date: June 7, 2018
    Inventors: Min Woo BYUN, Seung Yeon CHO, Jae Du NOH, Min Kyu WOO, Jae Sic LEE
  • Publication number: 20180158396
    Abstract: A display device includes a pixel unit including first pixels in a first pixel area, second pixels in a second pixel area, and third pixels in a third pixel area; a first scan driver including first multiplexers configured to operate in response to a first mode and a second mode different from the first mode, and to supply first scan signals to first scan lines connected to the first pixels; a second scan driver configured to supply second scan signals to second scan lines connected to the second pixels; and a third scan driver including second multiplexers configured to operate in response to the first mode and the second mode, and to supply third scan signals to third scan lines connected to the third pixels.
    Type: Application
    Filed: November 6, 2017
    Publication date: June 7, 2018
    Inventors: Jae Sic LEE, Min Woo BYUN, Jae Du NOH, Min Kyu WOO, Seung Yeon CHO
  • Publication number: 20180158393
    Abstract: A display device includes: first pixels at a first pixel area and connected to first scan lines; a first scan driver to supply first scan signals to the first scan lines; second pixels at a second pixel area and connected to second scan lines; a second scan driver to supply second scan signals to the second scan lines; third pixels at a third pixel area and connected to third scan lines; and a third scan driver to supply third scan signals to the third scan lines. In a first mode, each of the first scan signals has at least a portion having a first pulse width, and each of the second scan signals has at least a portion having a second pulse width different from the first pulse width.
    Type: Application
    Filed: November 1, 2017
    Publication date: June 7, 2018
    Inventors: Min Kyu Woo, Seung Kyu Lee, Jae Du Noh, Min Woo Byun, Jae Sic Lee, Seung Yeon Cho
  • Publication number: 20180075803
    Abstract: A display device includes a plurality of first pixels coupled to first scan lines and data lines and a plurality of second pixels coupled to second scan lines and the data lines. Each of the first scan lines receives 2i first scan signals during a frame period. Each of the second scan lines receives i second scan signals during the frame period, where i is a natural number.
    Type: Application
    Filed: June 13, 2017
    Publication date: March 15, 2018
    Inventors: Jae Sic LEE, Seung Yeon CHO, Sang Moo CHOI
  • 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
  • Patent number: 9349776
    Abstract: A display apparatus includes an array of pixels and dummy pixels. A plurality of first lines are connected to the pixels and the dummy pixels. A plurality of repair lines are connected to the dummy pixels and are selectively connected to the pixels. A plurality of second lines are connected to the pixels. At least one dummy line is connected to the dummy pixels. At least one dummy wiring is connected to the at least one dummy line and is selectively connected to one of the second lines.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: May 24, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Sic Lee, Ji-Hye Kim, Dong-Wook Kim, Tae-Gon Kim
  • Patent number: 9336708
    Abstract: An organic light emitting device includes a substrate including a display unit configured to display an image and a peripheral portion surrounding the display unit, a plurality of scan lines on the substrate and extending in a first direction, a plurality of data lines on the substrate and intersecting the scan lines in a second direction, a plurality of pixels at the display unit and connected to the scan lines and the data lines, a repair ring surrounding the display unit, a plurality of driving pads on the peripheral portion and connected to ends of the plurality of data lines, a pair of dummy driving pads on the peripheral portion and connected to ends of the repair ring, and a driving circuit configured to transmit a data signal to the plurality of driving pads and to the pair of dummy driving pads.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: May 10, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae Gon Kim, Jae-Sic Lee, Jin-Yup Kim, Ji Yong Park
  • Publication number: 20160078812
    Abstract: An organic light emitting display device includes: a data line and an auxiliary data line; a scan line disposed crossing the a data line and the auxiliary data line; a display pixel disposed where the data line and the scan line cross; an auxiliary pixel disposed where the auxiliary data line, and the scan line cross; and an auxiliary line connected to the auxiliary pixel, wherein the auxiliary pixel includes: a discharge transistor coupled to the auxiliary line and a first power voltage line to which a first power voltage is supplied; and a discharge transistor controller configured to switch the discharge transistor.
    Type: Application
    Filed: June 26, 2015
    Publication date: March 17, 2016
    Inventors: Jae-Sic LEE, Mi-Hae KIM
  • Patent number: 9269285
    Abstract: An array substrate includes a display area including a plurality of pixels coupled to a plurality of gate lines and a plurality of data lines; a data driving unit, coupled to a fan-out unit and configured to drive the data lines; a first switching circuit between the display area and the data driving unit and configured to control the data lines to share electric charges in an image display mode; and a second switching circuit coupled to the fan-out unit via a fuse unit and configured to be disconnected from the fan-out unit in the image display mode.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: February 23, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Sic Lee, Dong-Wook Kim, Chul-Ho Kim, Dong-Hoon Lee
  • Publication number: 20150287362
    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: March 12, 2015
    Publication date: October 8, 2015
    Inventors: Jae-Sic Lee, Seung-Kyu Lee