Patents by Inventor Jae-Beom Choi

Jae-Beom Choi 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: 20200372851
    Abstract: A scan driver includes a plurality of stages. An nth (n is a natural number) stage among the stages includes: a first and a second input circuit for controlling a voltage of a first node in response to a carry signal of a previous stage and a next stage, respectively; a first output circuit for outputting an nth carry signal corresponding to a carry clock signal in response to the voltage of the first node; a second output circuit for outputting an nth scan and an nth sensing signal corresponding to a scan and a sensing clock signal, respectively, in response to the voltage of the first node; and a sampling circuit for storing the carry signal of the previous stage in response to a first select signal, and for supplying a control voltage to the first node in response to a second select signal and the stored carry signal.
    Type: Application
    Filed: May 15, 2020
    Publication date: November 26, 2020
    Inventors: Kang Nam KIM, Sung Hoon LIM, Woo Geun LEE, Kyu Sik CHO, Jae Beom CHOI
  • Publication number: 20190319216
    Abstract: A display device includes a substrate including a display area in which a plurality of pixels is disposed, and a non-display area in a peripheral area of the display area; an insulating layer disposed on the substrate; a metal wiring disposed on the substrate; and a plurality of dummy patterns disposed in the non-display area of the substrate. The plurality of dummy patterns includes a plurality of first patterns including an insulating material and a plurality of second patterns including a metal material.
    Type: Application
    Filed: June 24, 2019
    Publication date: October 17, 2019
    Inventors: JONG-RYUK PARK, Keun Soo Lee, Sun Youl Lee, Yun-Mo Chung, Jae Beom Choi
  • Publication number: 20190198601
    Abstract: A capacitor includes an active layer, a gate insulation layer on the active layer, a gate electrode on the gate insulation layer, an interlayer insulating layer on the gate electrode, and a first electrode on the interlayer insulating layer and connected to the active layer through at least one contact hole.
    Type: Application
    Filed: February 27, 2019
    Publication date: June 27, 2019
    Inventors: Guang-Hai JIN, Jae-Beom CHOI, Se-Hun PARK, Jae-Seol CHO
  • Patent number: 10333102
    Abstract: A display device includes a substrate including a display area in which a plurality of pixels is disposed, and a non-display area near the display area; an insulating layer disposed on the substrate; a metal wiring disposed on the substrate; and a plurality of dummy patterns disposed in the non-display area of the substrate. The plurality of dummy patterns includes a plurality of first patterns including an insulating material and a plurality of second patterns including a metal material.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: June 25, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong-Ryuk Park, Keun Soo Lee, Sun Youl Lee, Yun-Mo Chung, Jae Beom Choi
  • Patent number: 10224384
    Abstract: A capacitor includes an active layer, a gate insulation layer on the active layer, a gate electrode on the gate insulation layer, an interlayer insulating layer on the gate electrode, and a first electrode on the interlayer insulating layer and connected to the active layer through at least one contact hole.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: March 5, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Guang-Hai Jin, Jae-Beom Choi, Se-Hun Park, Jae-Seol Cho
  • Patent number: 10191711
    Abstract: A multi-display apparatus may include a first display panel and a second display panel at least partially overlapping the first display panel. The first display panel may include a first display region in which a plurality of first pixels are disposed, and a first non-display region adjacent to the first display region. The second display panel may include a second display region in which a plurality of second pixels are disposed. The first non-display region may overlap the second display region, and first transmitting windows may be disposed in the first non-display region over the second pixels.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: January 29, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Beohm-Rock Choi, Jae-Beom Choi
  • Patent number: 10186563
    Abstract: An organic light emitting diode (OLED) display device and a method of manufacturing the same. The device includes a substrate, a thin film transistor (TFT) on the substrate and including an active layer, a gate electrode, a source electrode, and a drain electrode, a first pixel electrode coupled to one of the source and drain electrodes, a rough portion on the first pixel electrode, a second pixel electrode on the rough portion and having a rough pattern, an intermediate layer on the second pixel electrode including an organic emission layer (EML), and an opposing electrode on the intermediate layer.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: January 22, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seong-Hyun Jin, Jae-Hwan Oh, Yeoung-Jin Chang, Se-Hun Park, Won-Kyu Lee, Jae-Beom Choi
  • Patent number: 10163990
    Abstract: A display device includes a display panel, a camera module, and a heat sink plate. The display panel displays an image on a front surface, and includes a first substrate, a sub-pixel structure, and a reflection pattern. The display panel includes a plurality of pixel regions each having sub-pixel regions, a transparent region, and a reflection region surrounding the sub-pixel regions and the transparent region. The sub-pixel structure is disposed in the sub-pixel region. The second substrate is disposed on the sub-pixel structure. The reflection pattern is disposed on the second substrate, but not on the sub-pixel region and the transparent region. The camera module is disposed in a second surface on the display panel, and the second surface is opposite to the first surface. The heat sink plate is disposed between the display panel and the camera module, and has an opening that is aligned with the camera module.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: December 25, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yun-Mo Chung, Byung-Ik Kong, Byoung-Ki Kim, Ho-Jin Yoon, Dae-Woo Lee, Jae-Beom Choi
  • Patent number: 10068989
    Abstract: A substrate for a display device is disclosed. In one aspect, the substrate includes an active layer that is formed on substantially the entire portion of the bottom substrate and comprises a first area and a second area with a higher carrier concentration than the first area. The substrate also includes a line overlapping with the first area and a contact electrode that electrically connects the line to the second area of the active layer.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: September 4, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Guang-Hai Jin, Jae-Beom Choi, Kwan-Wook Jung
  • Publication number: 20180122879
    Abstract: An organic light emitting diode (OLED) display device and a method of manufacturing the same. The device includes a substrate, a thin film transistor (TFT) on the substrate and including an active layer, a gate electrode, a source electrode, and a drain electrode, a first pixel electrode coupled to one of the source and drain electrodes, a rough portion on the first pixel electrode, a second pixel electrode on the rough portion and having a rough pattern, an intermediate layer on the second pixel electrode including an organic emission layer (EML), and an opposing electrode on the intermediate layer.
    Type: Application
    Filed: December 29, 2017
    Publication date: May 3, 2018
    Inventors: Seong-Hyun Jin, Jae-Hwan Oh, Yeoung-Jin Chang, Se-Hun Park, Won-Kyu Lee, Jae-Beom Choi
  • Patent number: 9929223
    Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the display includes a substrate, a switching transistor formed over the substrate, a driving transistor electrically connected to the switching transistor, and a pixel electrode electrically connected to the driving transistor. The display also includes a pixel definition layer covering the pixel electrode and having a pixel opening, an organic emission layer formed only in the pixel opening and connected to the pixel electrode, and a common electrode formed over the organic emission layer. The pixel definition layer is formed over the driving transistor.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: March 27, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Il Hun Seo, Chul Kyu Kang, Byoung Ki Kim, Young Jun Shin, Jae Beom Choi
  • Patent number: 9893135
    Abstract: An organic light emitting diode display includes: a substrate; a first thin film transistor including a first active region on the substrate; a second thin film transistor connected to the first thin film transistor and including a second active region spaced from the first active region; and a silicon layer on the substrate and including a plurality of polysilicon lines spaced from each other and extending in a first direction and a plurality of amorphous silicon lines between the adjacent polysilicon lines and extending in the first direction, wherein the first active region and the second active region are in different polysilicon lines of the plurality of polysilicon lines.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: February 13, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Guang Hai Jin, Jae Beom Choi
  • Patent number: 9859347
    Abstract: An organic light emitting diode (OLED) display device and a method of manufacturing the same. The device includes a substrate, a thin film transistor (TFT) on the substrate and including an active layer, a gate electrode, a source electrode, and a drain electrode, a first pixel electrode coupled to one of the source and drain electrodes, a rough portion on the first pixel electrode, a second pixel electrode on the rough portion and having a rough pattern, an intermediate layer on the second pixel electrode including an organic emission layer (EML), and an opposing electrode on the intermediate layer.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: January 2, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seong-Hyun Jin, Jae-Hwan Oh, Yeoung-Jin Chang, Se-Hun Park, Won-Kyu Lee, Jae-Beom Choi
  • Patent number: 9806136
    Abstract: An organic light emitting diode (OLED) display includes a light-emitting region including an organic emission layer and a non-light-emitting region neighboring the light-emitting region. The OLED display includes a first electrode positioned at the light-emitting region and including a plurality of division regions divided according to a virtual cutting line crossing the light-emitting region, an organic emission layer positioned on the first electrode, a second electrode positioned on the organic emission layer, a driving thin film transistor connected to the first electrode, and a plurality of input terminals positioned at the non-light-emitting region and respectively connecting between each of division regions and the driving thin film transistor.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: October 31, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Guang hai Jin, Jae-Beom Choi, Kwan-Wook Jung, June-Woo Lee, Moo-Jin Kim, Na-Young Kim
  • Publication number: 20170277219
    Abstract: A display device includes a display panel, a camera module, and a heat sink plate. The display panel displays an image on a front surface, and includes a first substrate, a sub-pixel structure, and a reflection pattern. The display panel includes a plurality of pixel regions each having sub-pixel regions, a transparent region, and a reflection region surrounding the sub-pixel regions and the transparent region. The sub-pixel structure is disposed in the sub-pixel region. The second substrate is disposed on the sub-pixel structure. The reflection pattern is disposed on the second substrate, but not on the sub-pixel region and the transparent region. The camera module is disposed in a second surface on the display panel, and the second surface is opposite to the first surface. The heat sink plate is disposed between the display panel and the camera module, and has an opening that is aligned with the camera module.
    Type: Application
    Filed: September 12, 2016
    Publication date: September 28, 2017
    Inventors: Yun-Mo CHUNG, Byung-Ik KONG, Byoung-Ki KIM, Ho-Jin YOON, Dae-Woo LEE, Jae-Beom CHOI
  • Publication number: 20170263690
    Abstract: A display device includes a display panel including a flexible region and a low flexibility region, wherein the flexible region may include a first transistor including a first semiconductor layer and a first gate electrode, a first conductor connected to the first semiconductor layer, and a first interlayer insulating layer between the first transistor and the first conductor. The low flexibility region may include a second transistor including a second semiconductor layer and a second gate electrode, a second conductor connected to the second semiconductor layer, and a second interlayer insulating layer between the second transistor and the second conductor. The first interlayer insulating layer may include an organic insulating material, the second interlayer insulating layer includes an inorganic insulating material, and a ratio of channel width to channel length of the first transistor may be different from that of the second transistor.
    Type: Application
    Filed: February 24, 2017
    Publication date: September 14, 2017
    Inventors: June Woo Lee, Shin Moon Kang, Byoung Ki Kim, Hee Kyung Kim, Hyun Chul Son, Yun-Mo Chung, Jae Beom Choi
  • Patent number: 9711087
    Abstract: A pixel includes an organic light emitting diode (OLED), a first transistor, a first capacitor, a second capacitor, and a pixel circuit. The OLED includes a cathode electrode connected to a second power source. The first transistor is connected between a data line and a first node, and turns on when a scan signal is supplied to a scan line. The first capacitor is connected between the first node and a third power source. The second capacitor is connected between the first node and a fourth power source. The pixel circuit controls a current quantity flowing from a first power source to the second power source through the OLED based on a voltage of the first node.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: July 18, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Beom Choi, Kwang-Hae Kim, Seong-Hyun Jin, Young-Jin Chang
  • Patent number: 9711083
    Abstract: A display apparatus includes a plurality of sub-pixel groups. At least one of the sub-pixel groups includes a plurality of first sub-pixels to emit a first color of light, a plurality of second sub-pixels to emit a second color of light, and a dummy pixel between the first sub-pixels and the second sub-pixels. A first dummy driving transistor is connectable to one of the first sub-pixels and a second dummy driving transistor is connectable to one of the second sub-pixels.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: July 18, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Na-Young Kim, Ki-Nyeng Kang, Jung-In Lee, Jae-Beom Choi
  • Publication number: 20170177289
    Abstract: A multi-display apparatus may include a first display panel and a second display panel at least partially overlapping the first display panel. The first display panel may include a first display region in which a plurality of first pixels are disposed, and a first non-display region adjacent to the first display region. The second display panel may include a second display region in which a plurality of second pixels are disposed. The first non-display region may overlap the second display region, and first transmitting windows may be disposed in the first non-display region over the second pixels.
    Type: Application
    Filed: December 20, 2016
    Publication date: June 22, 2017
    Inventors: Beohm-Rock CHOI, Jae-Beom CHOI
  • Patent number: 9653525
    Abstract: A light emitting display device includes a substrate, a first electrode, a pixel defining layer, a light emitting layer, a second electrode, and a reflective pattern. The substrate includes a plurality of pixels, each including a top emission pixel in a first area and a bottom emission pixel in a second area. The first electrode is in the first area and the second area. The pixel defining layer includes pixel openings to expose the first electrode and reflective pattern openings between adjacent pixels. The light emitting layer is on the first electrode, and the second electrode is on the light emitting layer. The reflective pattern is in the reflective pattern opening and spaced from the second electrode in the first area.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: May 16, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se Hun Park, Yong Duck Son, Jae Hwan Oh, Ji Youn Lee, Young Jin Chang, Jae Beom Choi