Patents by Inventor Chung-Sock Choi

Chung-Sock 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: 20230403888
    Abstract: An emissive display device includes: a substrate; a transistor disposed on the substrate; an insulating layer disposed on the transistor; a connection electrode disposed on the insulating layer and electrically connected to the transistor; a first electrode of a light emitting element disposed on the insulating layer; a separation pattern layer including a first pattern layer disposed on the connection electrode and a second pattern layer disposed on the insulating layer; a pixel defining layer disposed on the insulating layer and the separation pattern layer and including an opening overlapping the connection electrode; and a second electrode of the light emitting element disposed on the pixel defining layer and connected to the connection electrode through the opening of the pixel defining layer.
    Type: Application
    Filed: June 12, 2023
    Publication date: December 14, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Pil Suk LEE, Yoo Min KO, Sun Ho KIM, Hye Won KIM, Ju Chan PARK, Chung Sock CHOI, Sung Jin HONG
  • Publication number: 20230360605
    Abstract: A gate driver includes: a signal generator configured to generate a gate signal, and output the gate signal to a first output terminal; and an inverted signal generator configured to generate an inverted gate signal based on the gate signal, and output the inverted gate signal to a second output terminal, wherein the inverted signal generator includes: a first transistor connected between a first node connected to the second output terminal and a first driving power supply terminal, and including a PMOS transistor; and a second transistor connected between the first node and a second driving power supply terminal, and including an NMOS transistor, and wherein a second node connected to the first output terminal is connected to a gate electrode of each of the first and second transistors.
    Type: Application
    Filed: February 24, 2023
    Publication date: November 9, 2023
    Inventors: SUNHO KIM, YOOMIN KO, Hyewon Kim, JUCHAN PARK, PILSUK LEE, CHUNG SOCK CHOI, SUNGJIN HONG
  • Patent number: 11800743
    Abstract: A display device includes a display panel including a light-emitting device to emit light; and an input sensor disposed on the display panel. The input sensor includes a first insulating layer disposed on the display panel; a first conductive layer disposed on the first insulating layer; a second insulating layer covering the first conductive layer; and a second conductive layer disposed on the second insulating layer. At least one of the first and second insulating layers includes a plurality of diffraction patterns arranged to diffract at least a portion of the light provided from the display panel.
    Type: Grant
    Filed: October 3, 2022
    Date of Patent: October 24, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chung Sock Choi, Sunmi Kang, Cheol Jang, Sunyoung Jung, Hyunho Kim, Sanghwan Cho
  • Publication number: 20230329050
    Abstract: A display device includes a substrate that includes a display area and a subsidiary area adjacent to the display area; a first pixel driving unit disposed in the display area; a light-emitting element disposed in the display area and connected to the first pixel driving unit; a plurality of sensor driving units disposed in the subsidiary area; and a plurality of photoelectric conversion elements disposed in the subsidiary area and connected to the plurality of sensor driving units, respectively.
    Type: Application
    Filed: January 23, 2023
    Publication date: October 12, 2023
    Inventors: MIN OH CHOI, Gun Hee Kim, Sun Ho Kim, Kwan Soo Bae, Dae Young Lee, Sung Chan Jo, Chung Sock Choi
  • Patent number: 11770949
    Abstract: A display device comprising: a substrate; a plurality of display elements disposed on the substrate; and a diffraction pattern layer disposed on a path of light emitted from the plurality of display elements. The diffraction pattern layer comprises a plurality of diffraction patterns which is disposed with a predetermined pitch, and the plurality of diffraction patterns do not overlap the plurality of display elements; and when a width of a cross section of each of the plurality of diffraction patterns is defined as a length of each diffraction pattern, the predetermined pitch and the length of each diffraction pattern satisfy the following inequation: 0.4?d1/DP1<1, where DP1 denotes the predetermined pitch, and d1 denotes the length of each diffraction pattern.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: September 26, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Hwan Cho, Chung Sock Choi, Hyun Ho Kim, So Young Lee, Cheol Jang, Sun Young Jung
  • Publication number: 20230206857
    Abstract: A display panel includes a first display area and a second display area. A plurality of base pixel parts are disposed in the second display area, and each base pixel part includes “k” first color light emitting elements. A controller receives image signals, and the image signals include first image signals corresponding to the first display area and second image signals corresponding to the second display area. The second image signals are divided into a plurality of base signal parts respectively corresponding to the plurality of base pixel parts, and each base signal part includes “m*n” first color image signals. The controller generates color image data by rendering “p” color image signals of “m*n” color image signals included in a corresponding base signal part and “(m*n)?p” referenced image signals included in a referenced signal part adjacent to the corresponding base signal part.
    Type: Application
    Filed: November 7, 2022
    Publication date: June 29, 2023
    Applicant: Samsung Display Co., Ltd.
    Inventors: SUNGJIN HONG, CHUNG SOCK CHOI, Hyewon KIM, YOOMIN KO, SUNHO KIM, JUCHAN PARK, PILSUK LEE
  • Publication number: 20230200130
    Abstract: A display device includes a substrate including a first display area and a second display area; a first pixel circuit part disposed on the first display area of the substrate; a first light-emitting device connected to the first pixel circuit part; a second pixel circuit part disposed on the second display area of the substrate; a second light-emitting device connected to the second pixel circuit part; and a signal transfer wire that overlaps the second light-emitting device. The signal transfer wire includes subwires spaced apart from each other, and a bridge wire extending from the subwires.
    Type: Application
    Filed: August 25, 2022
    Publication date: June 22, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Sun Ho KIM, Kyung Hoe LEE, Kyung Hoon CHUNG, Ji-Sun KIM, Yoo Min KO, Hye Won KIM, Ju Chan PARK, Pil Suk LEE, Chung Sock CHOI, Sung Jin HONG
  • Publication number: 20230200158
    Abstract: A display device includes a substrate including a first display area; a peripheral area; and a second display area disposed between the first display area and the peripheral area; a first light-emitting device disposed on the first display area of the substrate; a second light-emitting device disposed on the second display area of the substrate; a driving circuit disposed on the second display area and the peripheral area of the substrate and overlapping the second light-emitting device in a plan view; a pattern portion disposed on the driving circuit; and a dam disposed on an outside of the pattern portion.
    Type: Application
    Filed: October 5, 2022
    Publication date: June 22, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Sun Ho KIM, Yoo Min KO, Ju Chan PARK, Pil Suk LEE, Hye Won KIM, Chung Sock CHOI, Sung Jin HONG
  • Publication number: 20230108247
    Abstract: A display device includes a display area including a first display area and a second display area adjacent to each other; a driving circuit, at least part of the driving circuit being disposed in the second display area; first pixel circuit units disposed in the first display area; first light emitting elements disposed in the first display area and electrically connected to the first pixel circuit units; second pixel circuit units disposed in the second display area; second light emitting elements disposed in the second display area and two or more of the second light emitting elements are electrically connected to a second pixel circuit unit; and a light blocking layer overlapping at least one of the second light emitting elements in a plan view.
    Type: Application
    Filed: July 28, 2022
    Publication date: April 6, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Chung Sock CHOI, Sun Ho KIM, Hye Won KIM, Sun Hee LEE
  • Publication number: 20230023465
    Abstract: A display device includes a display panel including a light-emitting device to emit light; and an input sensor disposed on the display panel. The input sensor includes a first insulating layer disposed on the display panel; a first conductive layer disposed on the first insulating layer; a second insulating layer covering the first conductive layer; and a second conductive layer disposed on the second insulating layer. At least one of the first and second insulating layers includes a plurality of diffraction patterns arranged to diffract at least a portion of the light provided from the display panel.
    Type: Application
    Filed: October 3, 2022
    Publication date: January 26, 2023
    Inventors: CHUNG SOCK CHOI, Sunmi Kang, Cheol Jang, Sunyoung Jung, Hyunho Kim, Sanghwan Cho
  • Publication number: 20230020926
    Abstract: A display device includes a first display area and a second display area; a first pixel circuit part positioned on the first display area; a first light-emitting element electrically connected to the first pixel circuit part; a second pixel circuit part positioned in the second display area; second light-emitting elements electrically connected to the second pixel circuit part; and a driving circuit part electrically connected to the first pixel circuit part and the second pixel circuit part and overlapping the second light-emitting elements in a plan view.
    Type: Application
    Filed: April 18, 2022
    Publication date: January 19, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Ju Chan PARK, Sun Ho KIM, Ja Eun LEE, Pil Suk LEE, Chung Sock CHOI
  • Patent number: 11525948
    Abstract: An optical sheet includes a first wedge layer having a first refractive index and including a wedge-shaped prism pattern including an inclined surface having an inclination angle with respect to a plane defined by a first direction and a second direction perpendicular to the first direction and a vertical surface extending in a third direction perpendicular to the first direction and the second direction, a second wedge layer disposed on the first wedge layer and having a second refractive index greater than the first refractive index, and a light blocking pattern disposed between the first wedge layer and the second wedge layer and including a first surface that contacts with the vertical surface and a second surface inclined to have the inclination angle with respect to the plane while contacting with the inclined surface.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: December 13, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Bokwang Song, Juhoon Kang, Chung Sock Choi, Youn Joon Kim, Jung Woo Park
  • Patent number: 11462718
    Abstract: A display device includes a display panel including a light-emitting device to emit light; and an input sensor disposed on the display panel. The input sensor includes a first insulating layer disposed on the display panel; a first conductive layer disposed on the first insulating layer; a second insulating layer covering the first conductive layer; and a second conductive layer disposed on the second insulating layer. At least one of the first and second insulating layers includes a plurality of diffraction patterns arranged to diffract at least a portion of the light provided from the display panel.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: October 4, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chung Sock Choi, Sunmi Kang, Cheol Jang, Sunyoung Jung, Hyunho Kim, Sanghwan Cho
  • Patent number: 11360312
    Abstract: A display device includes a display panel including a substrate and a plurality of display elements disposed on the substrate, and a diffraction panel including a plurality of diffraction patterns disposed on a path of light emitted from the plurality of display elements. The plurality of diffraction patterns are disposed in a first direction to have a first period, each of the plurality of diffraction patterns includes a first refractive layer, a second refractive layer disposed on the first refractive layer, and a third refractive layer disposed on the second refractive layer, and a refractive index of the second refractive layer is higher than a refractive index of the first refractive layer and a refractive index of the third refractive layer.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: June 14, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chung Sock Choi, Hyun Ho Kim, So Young Lee, Sang Hwan Cho
  • Publication number: 20220123264
    Abstract: A display device includes a display panel and a diffraction pattern layer. The display panel includes pixels. The diffraction pattern layer includes diffraction patterns arranged on the display panel and configured to diffract at least a portion of light from the pixels. The pixels include a first unit pixel and a second unit pixel. The diffraction patterns include first unit diffraction patterns and second unit diffraction patterns. The first unit diffraction patterns are arranged on the first unit pixel. The second unit diffraction patterns are arranged on the second unit pixel. The second unit diffraction patterns have a different planar arrangement than the first unit diffraction patterns.
    Type: Application
    Filed: October 15, 2021
    Publication date: April 21, 2022
    Inventors: Chung Sock CHOI, Sunyoung JUNG, Sunmi KANG, Juhoon KANG, Hyunho KIM, Hyungkeun PARK, Cheol JANG, Sanghwan CHO
  • Publication number: 20210126227
    Abstract: A display device includes a display panel including a light-emitting device to emit light; and an input sensor disposed on the display panel. The input sensor includes a first insulating layer disposed on the display panel; a first conductive layer disposed on the first insulating layer; a second insulating layer covering the first conductive layer; and a second conductive layer disposed on the second insulating layer. At least one of the first and second insulating layers includes a plurality of diffraction patterns arranged to diffract at least a portion of the light provided from the display panel.
    Type: Application
    Filed: October 7, 2020
    Publication date: April 29, 2021
    Inventors: Chung Sock Choi, Sunmi Kang, Cheol Jang, Sunyoung Jung, Hyunho Kim, Sanghwan Cho
  • Publication number: 20210080624
    Abstract: An optical sheet includes a first wedge layer having a first refractive index and including a wedge-shaped prism pattern including an inclined surface having an inclination angle with respect to a plane defined by a first direction and a second direction perpendicular to the first direction and a vertical surface extending in a third direction perpendicular to the first direction and the second direction, a second wedge layer disposed on the first wedge layer and having a second refractive index greater than the first refractive index, and a light blocking pattern disposed between the first wedge layer and the second wedge layer and including a first surface that contacts with the vertical surface and a second surface inclined to have the inclination angle with respect to the plane while contacting with the inclined surface.
    Type: Application
    Filed: August 18, 2020
    Publication date: March 18, 2021
    Inventors: Bokwang SONG, Juhoon KANG, Chung Sock CHOI, Youn Joon KIM, Jung Woo PARK
  • Publication number: 20210083228
    Abstract: A display device comprising: a substrate; a plurality of display elements disposed on the substrate; and a diffraction pattern layer disposed on a path of light emitted from the plurality of display elements. The diffraction pattern layer comprises a plurality of diffraction patterns which is disposed with a predetermined pitch, and the plurality of diffraction patterns do not overlap the plurality of display elements; and when a width of a cross section of each of the plurality of diffraction patterns is defined as a length of each diffraction pattern, the predetermined pitch and the length of each diffraction pattern satisfy the following inequation: 0.4?d1/DP1<1, where DP1 denotes the predetermined pitch, and d1 denotes the length of each diffraction pattern.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 18, 2021
    Inventors: Sang Hwan CHO, Chung Sock CHOI, Hyun Ho KIM, So Young LEE, Cheol JANG, Sun Young JUNG
  • Patent number: 10903284
    Abstract: A display device, including: a substrate; a first light-emitting element disposed on the substrate; an encapsulation layer disposed on the first light-emitting element; an input sensing layer disposed on the encapsulation layer; and a diffraction pattern layer disposed on the input sensing layer. The diffraction pattern layer may include a plurality of diffraction patterns arranged to have a first period in one direction.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: January 26, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: So Young Lee, Sun Mi Kang, Hyun Ho Kim, Cheol Jang, Sun Young Jung, Sang Hwan Cho, Chung Sock Choi, Sang Hyun Han
  • Publication number: 20200393684
    Abstract: A display device includes a display panel including a substrate and a plurality of display elements disposed on the substrate, and a diffraction panel including a plurality of diffraction patterns disposed on a path of light emitted from the plurality of display elements. The plurality of diffraction patterns are disposed in a first direction to have a first period, each of the plurality of diffraction patterns includes a first refractive layer, a second refractive layer disposed on the first refractive layer, and a third refractive layer disposed on the second refractive layer, and a refractive index of the second refractive layer is higher than a refractive index of the first refractive layer and a refractive index of the third refractive layer.
    Type: Application
    Filed: August 27, 2020
    Publication date: December 17, 2020
    Inventors: Chung Sock CHOI, Hyun Ho KIM, So Young LEE, Sang Hwan CHO