Patents by Inventor Beohm-Rock Choi

Beohm-Rock 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).

  • Patent number: 12349556
    Abstract: A light emitting display device includes a substrate, an organic layer, a conductor, an anode, and a pixel definition layer. The organic layer overlaps the substrate and has a connection opening. The conductor is positioned between the substrate and the organic layer. The anode is positioned on the organic layer and is partially positioned inside the connection opening. The pixel definition layer exposes an exposed portion of the anode. The organic layer has a halftone exposure portion and a neighboring portion. The halftone exposure portion overlaps the exposed portion of the anode and overlaps the conductor. The neighboring portion neighbors the halftone exposure portion. A face of the halftone exposure portion and a face of the neighboring portion are spaced from the substrate by a first distance and a second distance, respectively. A difference between the first distance and the second distance is 30 nm or less.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: July 1, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun Hee Lee, Beohm Rock Choi, Jun Hyuk Woo, Choong Youl Im, Seong Min Cho
  • Publication number: 20250209847
    Abstract: A display device may include a sensor layer, a substrate, a pixel layer, and a black matrix. The sensor layer may include photo sensors. The substrate may be positioned on the sensor layer. The pixel layer may be positioned on the substrate and may include pixels. The substrate may be positioned between the sensor layer and the pixel layer. The pixels may include pixel electrodes. The black matrix may be positioned on the pixel layer, may include first-set openings respectively overlapping with the pixel electrodes, and may include second-set openings not overlapping with any pixel electrodes of the display device in a direction perpendicular to the substrate. The pixel layer may be positioned between the substrate and the black matrix.
    Type: Application
    Filed: March 10, 2025
    Publication date: June 26, 2025
    Inventors: Gee Bum KIM, Jae Ik LIM, Tae Hoon YANG, Dae Young LEE, Seong Min CHO, Beohm Rock CHOI
  • Patent number: 12340716
    Abstract: A display device including a substrate; a first electrode on the substrate; a partitioning wall on the first electrode that includes a first opening that overlaps the first electrode; a touch detection electrode on the partitioning wall; a low refractive layer on the partitioning wall and the touch detection electrode, the low refractive layer including a second opening that overlaps the first opening; and a high refractive layer on the low refractive layer. Planar shapes of the first opening and the second opening are polygons, each including a series of sides, and a distance between one side of the first opening and the second opening is different than another side of the first opening and the second opening in a plan view.
    Type: Grant
    Filed: March 6, 2023
    Date of Patent: June 24, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kang Wook Heo, Beohm Rock Choi, Hae Young Yun, Jung-Hyun Cho, Won Hak Choi
  • Publication number: 20250176361
    Abstract: A light emitting display device includes: a substrate, a plurality of anodes located on the substrate; a pixel defining layer defining a plurality of first openings overlapping the plurality of anodes, respectively; a plurality of light emitting layers located within the plurality of first openings of the pixel defining layer, respectively; a cathode disposed on the plurality of light emitting layers and the pixel defining layer; an encapsulation layer located on the cathode; and a plurality of color filters corresponding to different colors and located on the encapsulation layer. The plurality of color filters define a plurality of second openings in each of which only one color filter of the color filters is located, and include a light blocking area in which at least two color filters of the color filters are overlapped in a plan view, and the first opening or the second opening has an oval shape.
    Type: Application
    Filed: July 22, 2024
    Publication date: May 29, 2025
    Inventors: Kook Hyun CHOI, Soo-Hye RYU, Hong-Jo PARK, Jun Hee LEE, Beohm Rock CHOI
  • Patent number: 12295220
    Abstract: A display device includes a substrate, a transistor, an interlayer insulating layer, a first conductive line, a pixel electrode, a passivation layer, a common electrode, and a light emitting element layer. The transistor overlaps the substrate. The interlayer insulating layer overlaps the transistor and includes a first groove. The first conductive line is electrically connected to the transistor and is at least partially disposed inside the first groove. The pixel electrode is electrically connected to the transistor and overlaps the first conductive line. The passivation layer is disposed between the pixel electrode and the first conductive line and directly contacts at least one of the pixel electrode and the first conductive line. The common electrode overlaps the pixel electrode. The light emitting element layer is disposed between the common electrode and the pixel electrode.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: May 6, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun Hee Lee, Nak Cho Choi, Min Yeul Ryu, Dong Ki Lee, Choong Youl Im, Beohm Rock Choi
  • Publication number: 20250143133
    Abstract: A light emitting display device includes: a display panel includes: a display area and a component area surrounded by the display area and including a plurality of optical sensor areas, and an optical element located on a rear surface of the component area. The display area includes: a pixel defining layer defining an opening that overlaps an anode, a cathode covering the pixel defining layer, an encapsulation layer located on a top of the cathode, a color filter positioned on the encapsulation layer and overlapping the opening of the pixel defining layer. The color filter and the pixel defining layer each have an additional opening corresponding to the optical sensor area, and the additional opening of the color filter is narrower than the additional opening of the pixel defining layer, so that the pixel defining layer is obscured by the color filter in the optical sensor area.
    Type: Application
    Filed: June 21, 2024
    Publication date: May 1, 2025
    Inventors: Chan Young KIM, Seong Min CHO, Sang Woo KANG, Choong Youl IM, Kook Hyun CHOI, Beohm Rock CHOI, Seong-Yong HWANG
  • Publication number: 20250098320
    Abstract: A display device includes gate lines disposed on a substrate in a first direction, data lines disposed on the substrate in a second direction crossing the first direction, the data lines being insulated from the gate lines, a first insulating film disposed between the data lines, a second insulating film disposed on the data lines and the first insulating film, and a first electrode disposed on the second insulating film. The first insulating film does not overlap the data lines in a direction perpendicular to the substrate.
    Type: Application
    Filed: December 3, 2024
    Publication date: March 20, 2025
    Applicant: Samsung Display Co., Ltd.
    Inventors: Seong-Min KIM, Won Mo PARK, Jin Koo CHUNG, Kyung Soo JANG, Min Hyun JIN, Beohm Rock CHOI
  • Patent number: 12249174
    Abstract: A display device may include a sensor layer, a substrate, a pixel layer, and a black matrix. The sensor layer may include photo sensors. The substrate may be positioned on the sensor layer. The pixel layer may be positioned on the substrate and may include pixels. The substrate may be positioned between the sensor layer and the pixel layer. The pixels may include pixel electrodes. The black matrix may be positioned on the pixel layer, may include first-set openings respectively overlapping with the pixel electrodes, and may include second-set openings not overlapping with any pixel electrodes of the display device in a direction perpendicular to the substrate. The pixel layer may be positioned between the substrate and the black matrix.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: March 11, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gee Bum Kim, Jae Ik Lim, Tae Hoon Yang, Dae Young Lee, Seong Min Cho, Beohm Rock Choi
  • Publication number: 20250072266
    Abstract: A light emitting display device includes a substrate, an anode located on the substrate, a pixel defining layer located on the anode with a first opening defined therethrough to overlap the anode, a light emitting layer located within the first opening of the pixel defining layer, a cathode located on the light emitting layer and the pixel defining layer, an encapsulation layer located on the cathode, a scattering layer located on the encapsulation layer and including scattering particles, with a scattering layer opening defined therethrough to overlap the first opening in a plan view at least in part, and a light blocking layer located on the light blocking layer with a second opening defined therethrough to overlap the first opening in a plan view, where at least one selected from the first opening, the scattering layer opening, and the second opening has an oval shape.
    Type: Application
    Filed: May 17, 2024
    Publication date: February 27, 2025
    Inventors: Changwook KIM, Beohm Rock CHOI, Jun Hee LEE, Minjung ANN, Wang Jo LEE, Hyun Duck CHO, Kook Hyun CHOI, Yechan CHOI
  • Publication number: 20250072222
    Abstract: A light emitting display device includes a substrate, anodes disposed on the substrate, a pixel defining layer having first openings overlapping each of the anodes, light emitting layers each disposed within the first openings of the pixel defining layer, a cathode disposed on the light emitting layers and the pixel defining layer, an encapsulation layer disposed on the cathode, and a light blocking layer disposed on the encapsulation layer and including second openings each overlapping the first openings. One unit pixel includes two light emitting areas of a first color, one light emitting area of a second color, and one light emitting area of a third color. The light emitting areas of the first color have a diamond shape, the second color and the third color light emitting areas each have a rectangular shape, and at least one second opening has an oval shape.
    Type: Application
    Filed: April 1, 2024
    Publication date: February 27, 2025
    Inventors: Kook Hyun CHOI, Changwook KIM, Changhyun BACK, Minjung ANN, Wang Jo LEE, Jun Hee LEE, Hyun Duck CHO, Beohm Rock CHOI, Yechan CHOI
  • Publication number: 20240373677
    Abstract: A display device may include: a substrate; a first electrode disposed on the substrate; a pixel defining layer including a pixel opening through which the first electrode is exposed; a second electrode disposed on the pixel defining layer and the first electrode; an encapsulation layer covering the second electrode; a color filter disposed on the encapsulation layer; and a light blocking component including a light opening overlapping the color filter. The pixel defining layer may include a first portion. At least a portion of the first portion may overlap an edge portion of the light blocking component. The first portion may be inclined.
    Type: Application
    Filed: November 27, 2023
    Publication date: November 7, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Jun Hee LEE, Yeong Ho LEE, Seong Yong HWANG, Choong Youl IM, Hyun Duck CHO, Beohm Rock CHOI
  • Patent number: 12114527
    Abstract: A display device includes a substrate, a first insulating layer on the substrate and including a flat upper surface, a first conductive layer on the substrate, the first conductive layer including first to third light blocking patterns separated from one another, a second insulating layer on the first conductive layer, and pixel electrodes on the second insulating layer. The pixel electrodes includes a first pixel electrode in a first color pixel and in the first light blocking pattern in a first direction in a plan view, and a second pixel electrode in a second color pixel and covering the second and third light blocking patterns in the first direction, the second insulating layer includes first and second areas respectively overlapping the first and second pixel electrodes, and each of the upper surfaces of the first and second areas includes a curved surface with a concave central portion.
    Type: Grant
    Filed: October 21, 2021
    Date of Patent: October 8, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Min Yeul Ryu, Dong Ki Lee, Jun Hee Lee, Choong Youl Im, Beohm Rock Choi, Nak Cho Choi
  • Publication number: 20240244891
    Abstract: A light emitting display device includes a substrate, a plurality of anodes on the substrate, a pixel defining layer having a plurality of first openings overlapping the anodes, a plurality of emission layers in the first openings of the pixel defining layer, a cathode formed on the emission layers and the pixel defining layer, an encapsulation layer on the cathode, and a light blocking layer on the encapsulation layer and having a plurality of second openings corresponding to the first openings, wherein the first openings and the second openings respectively have an oval shape in a plan view, and wherein long-axis angles of the second openings include at least five different angles.
    Type: Application
    Filed: November 14, 2023
    Publication date: July 18, 2024
    Inventors: Kook Hyun CHOI, Choong Youl IM, Ha Seok JEON, Beohm Rock CHOI, Seong-Yong HWANG
  • Publication number: 20240215413
    Abstract: An emissive display device includes a substrate. A first electrode is disposed on the substrate. A pixel defining layer has a first opening exposing the first electrode. A second electrode is disposed on both the pixel defining layer and the first electrode. An encapsulation layer at least partially covers the second electrode. A light blocking layer is disposed on the encapsulation layer and has a second opening. A color filter is disposed on the light blocking layer. A scattering layer is disposed within the second opening of the light blocking layer and includes a plurality of scattering particles. Particle density of the scattering particles has a value of 1 ea/mm3 or more and 10 ea/mm3 or less, and a diameter of the scattering particles is 0.1 ?m or more and 1.5 ?m or less.
    Type: Application
    Filed: October 6, 2023
    Publication date: June 27, 2024
    Inventors: Seong-Yong Hwang, Hyun Duck Cho, Kook Hyun Choi, Jun Hee Lee, Ji Hwang Lee, Choong Youl Im, Beohm Rock Choi
  • Publication number: 20240188397
    Abstract: Embodiments provide coating composition and a display device.
    Type: Application
    Filed: July 11, 2023
    Publication date: June 6, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Heung Shik PARK, El Ly GIL, Mi Ran JI, Beohm Rock CHOI
  • Publication number: 20240164146
    Abstract: A display device includes a first electrode disposed on a substrate; a pixel defining layer that has an opening exposing the first electrode; a second electrode disposed on the pixel defining layer and the first electrode; an encapsulation layer that covers the second electrode; a color filter disposed on the encapsulation layer; and an upper light blocking layer that has an upper opening corresponding to the color filter, wherein the upper light blocking layer overlaps an overlapping portion where adjacent color filters overlap each other in a plan view.
    Type: Application
    Filed: June 15, 2023
    Publication date: May 16, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Choong Youl IM, Ha Seok JEON, Hyun Duck CHO, Beohm Rock CHOI
  • Patent number: 11906830
    Abstract: A display device including a display panel having a first side including a display area configured to emit light and a second side opposite to the first side, a sensor having a first surface facing the display panel, a first adhesive layer disposed between the first surface of the sensor and the display panel, and a second adhesive layer disposed on a side surface of the sensor, in which the second adhesive layer and the first adhesive layer contact each other.
    Type: Grant
    Filed: November 4, 2022
    Date of Patent: February 20, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seong Min Wang, Beohm Rock Choi, Yong Ho Yang
  • Publication number: 20240049516
    Abstract: A light emitting display device includes: a substrate; an anode on the substrate; a pixel defining layer having an opening overlapping the anode; an emission layer in the opening of the pixel defining layer; a spacer on the pixel defining layer and having a step; a cathode formed in the emission layer, the pixel defining layer, and the spacer; an encapsulation layer on the cathode; and a light blocking layer on the encapsulation layer, wherein the spacer includes a first portion and a second portion that is lower than the first portion and is integrally formed with the first portion, and the first portion and the second portion of the spacer overlaps the light blocking layer in a plan view.
    Type: Application
    Filed: May 9, 2023
    Publication date: February 8, 2024
    Inventors: Jun Hee LEE, Yeong Ho LEE, Choong Youl IM, Hyun Duck CHO, Beohm Rock CHOI
  • Publication number: 20240040890
    Abstract: A display device includes pixel electrodes disposed on a substrate; a pixel defining layer disposed on the pixel electrodes that include pixel openings overlapping the pixel electrodes in a plan view, respectively; an encapsulation layer disposed on the pixel electrodes and the pixel defining layer; a sensing electrode disposed on the encapsulation layer; a first insulating layer disposed on the sensing electrode that has openings overlapping the pixel openings in a plan view, respectively; and a second insulating layer disposed on the first insulating layer that has a higher refractive index than a refractive index of the first insulating layer, and each of the openings of the first insulating layer includes at least one protruding extension, and protruding directions of the at least one protruding extension formed in each of the openings include at least eight directions.
    Type: Application
    Filed: March 23, 2023
    Publication date: February 1, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Jung-Hyun CHO, Gun Woo KO, Chi Wook AN, Beohm Rock CHOI
  • Publication number: 20240040848
    Abstract: A display device comprises pixel electrodes disposed on a substrate and spaced apart from one another, a pixel-defining film disposed on the substrate and including openings, which are spaced apart from one another and overlap the pixel electrodes, organic light-emitting layers disposed in the openings of the pixel-defining film, a common electrode disposed between the pixel-defining film and the organic light-emitting layers, an encapsulation layer disposed on the common electrode, a light-blocking layer disposed on the encapsulation layer and including holes, which overlap the openings and are spaced apart from one another, and color filters disposed in the holes of the light-blocking layer and overlapping the openings. Sides of each of the openings have concave-convex patterns including convex portions that protrude outwardly and concave portions that are inwardly depressed. The color filters are disposed to partially overlap one another on the light-blocking layer.
    Type: Application
    Filed: April 12, 2023
    Publication date: February 1, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: Seong Yong HWANG, Ji Hyun KIM, Chan Young KIM, Yeong Ho LEE, Jun Hee LEE, Choong Youl IM, Ha Seok JEON, Hyun Duck CHO, Kook Hyun CHOI, Beohm Rock CHOI