Patents by Inventor Hyeon Bum LEE

Hyeon Bum 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).

  • Patent number: 11121187
    Abstract: An OLED display according to an exemplary embodiment includes: a substrate that includes a display area and a non-display area; a pixel circuit that is disposed in the display area; organic light emitting diodes and barrier ribs that are disposed on the pixel circuit; an encapsulation layer that covers the pixel circuit, the organic light emitting diodes, and the barrier ribs; and a color filter that is disposed on the encapsulation layer, wherein the encapsulation layer comprises an edge area that is adjacent to the non-display area in the display area and a center area not directly adjacent to the non-display area and having the edge area disposed therebetween, the color filter comprises a first color filter, a second color filter, a third color filter, and color filter overlapped portions where the first color filter, the second color filter, and the third color filter are overlapped, and the color filter overlapped portions are disposed in areas where the barrier ribs are disposed, and a thickness of the
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: September 14, 2021
    Inventors: Hyeon Bum Lee, Jin Ho Ju
  • Publication number: 20210273145
    Abstract: A display device includes a circuit element layer disposed on a substrate; a first insulation layer disposed on the circuit element layer; a first conductor pattern disposed on the first insulation layer; a second insulation layer disposed on the first conductor pattern; a second conductor pattern disposed on the second insulation layer; a third insulation layer disposed on the second conductor pattern; an electrode of a light emitting diode disposed on the third insulation layer; and a pixel defining layer disposed on the third insulation layer and including an opening that overlaps the electrode of the light emitting diode. The opening overlaps the first conductor pattern, and in a plan view, an area of the opening matches an area of the first conductor pattern or is disposed inside the area of the first conductor pattern.
    Type: Application
    Filed: October 13, 2020
    Publication date: September 2, 2021
    Applicant: Samsung Display Co., LTD.
    Inventor: Hyeon Bum LEE
  • Publication number: 20210242423
    Abstract: A display device includes a first layer having a display area including pixels and a non-display area surrounding the display area; a second layer disposed on the first layer and including an intermediate inorganic film and an intermediate organic film; a third layer disposed on the second layer and including display elements; a first dam structure disposed outside an edge of the intermediate organic film and extending along the edge of the intermediate organic film; a fourth layer including first and second encapsulation inorganic films; a fifth layer in disposed on the fourth layer; a sixth layer disposed on the fifth layer and including a light blocking layer, a plurality of color filters, and a seventh layer covering the light blocking layer and the plurality of color filters; and a second dam structure disposed on the non-display area and defining a boundary of the seventh layer.
    Type: Application
    Filed: February 2, 2021
    Publication date: August 5, 2021
    Inventor: Hyeon Bum LEE
  • Publication number: 20210242283
    Abstract: A display device includes a base substrate having a main area, a sub-area, and a bending area. The main area includes pixels that each include a thin film transistor having a semiconductor layer, a gate electrode, a source electrode and a drain electrode. The display device includes a first insulating layer, a first conductive layer and a second insulating layer. The bending area includes a bending organic layer in a bending open portion. A second conductive layer is disposed on the second insulating layer and includes a source connection electrode. An encapsulation layer covers a light emitting element disposed on the second conductive layer for each of the pixels. A touch layer and a color filter layer are disposed on the encapsulation layer. The color filter layer includes a plurality of first color patterns overlapping the source connection electrode in the bending area that are separated from each other.
    Type: Application
    Filed: September 29, 2020
    Publication date: August 5, 2021
    Inventors: Hyeon Bum LEE, Beohm Rock CHOI, Jun Hyuk WOO
  • Patent number: 11069752
    Abstract: A display device and a manufacturing method which minimize a difference in touch sensitivity between regions of a display device are disclosed. The display includes a display area, a color filter area disposed over the display area, and a touch area disposed between the display area and the color filter area. The display area includes a substrate, an insulating layer disposed over the substrate, first and second electrodes, partition walls disposed between the insulating layer and the second electrode, an emission layer disposed in an opening formed by the first and second electrodes and adjacent partition walls, and a spacer disposed on at least one of the partition walls. The color filter area includes a first light blocking member disposed at a region overlapping the spacer and including at least two color filters stacked on each other.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: July 20, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Hyeon Bum Lee
  • Patent number: 11056546
    Abstract: A display device includes a display panel and a touch sensor on the display panel. The display panel includes: a base layer; a light emitting element having a first electrode on the base layer; a pixel defining layer including an opening region that exposes a portion of the first electrode of the light emitting element; and an encapsulation layer covering the light emitting element and the pixel defining layer. The touch sensor has: a first conductive pattern on the encapsulation layer; a color filter on the encapsulation layer to cover the first conductive pattern, the color filter including a first region including a lens part and overlaps the opening region of the pixel defining layer and a second region overlaps the pixel defining layer; a second conductive pattern on the second region of the color filter; and a black matrix on the second conductive pattern.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: July 6, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Whan Jung, Hyeon Bum Lee
  • Patent number: 11042237
    Abstract: A display device that includes a substrate and a bank layer disposed on the substrate. The bank layer defines an emission area and a non-emission area of a pixel. A spacer is disposed on a portion of the bank layer. A touch member is disposed above the spacer. At least one overcoat layer is disposed on the touch member. A dielectric constant of the at least one overcoat layer in a region overlapping the spacer in a thickness direction of the substrate is larger than a dielectric constant of the overcoat layer in a region that does not overlap the spacer in the thickness direction of the substrate.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: June 22, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyeon Bum Lee, Jin Whan Jung
  • Patent number: 10985229
    Abstract: A display device including a substrate, a source electrode and a drain electrode on the substrate, the source electrode and the drain electrode being spaced apart from each other, a first layer on the source electrode or the drain electrode, a second layer directly on the first layer, and a first electrode on the second layer. A step difference between a top of the first layer and a top of the drain electrode is 100 ? or less.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: April 20, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyeon Bum Lee, Hyoeng Ki Kim, Kyong Heon Lee, Dong Ki Lee, Eon Joo Lee, Jin Whan Jung
  • Patent number: 10916592
    Abstract: An organic light-emitting diode display device includes a substrate having a plurality of pixels; first electrodes disposed on the substrate, each of which is connected to a respective one of the pixels; organic emissive layers disposed on the first electrodes; a second electrode disposed on the organic emissive layers; a touch sensing unit disposed on the second electrode; and color filters disposed on the touch sensing unit, each of which is disposed above a respective one of the pixels.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: February 9, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eon Joo Lee, Hyoeng Ki Kim, Jun Hyuk Woo, Kwang Woo Park, Hyeon Bum Lee, Jin Whan Jung
  • Patent number: 10877587
    Abstract: A touch sensor includes a base layer including a sensing area and a non-sensing area, a plurality of touch electrodes disposed in the sensing area, a dummy electrode disposed between the touch electrodes, the dummy electrode including a plurality of dummy patterns spaced apart from each other, and an insulating layer disposed on the touch electrodes and the dummy electrode, in which the insulating layer includes at least one discontinuous pattern in an area disposed between adjacent dummy patterns.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: December 29, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyeon Bum Lee, Hyoeng Ki Kim
  • Patent number: 10868272
    Abstract: A display device includes a substrate, a thin film encapsulation layer, a cover layer, and a touch unit. The substrate includes a display area including pixels, and a non-display area disposed outside the display area. The thin film encapsulation layer is disposed on the substrate. The cover layer overlaps an edge of the thin film encapsulation layer such that the cover layer is disposed on an edge of the display area and in the non-display area. The touch unit is disposed on the thin film encapsulation layer and the cover layer. The cover layer includes a light blocking material.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: December 15, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventor: Hyeon Bum Lee
  • Publication number: 20200321406
    Abstract: A display device includes a display substrate including a flat main region including a plurality of pixels, a flat subsidiary region, and a bending region disposed between the flat main region and the flat subsidiary region; a first layer disposed on the display substrate, the first layer including a bending opening portion in the bending region exposing the bending region of the display substrate; a bending organic layer disposed on the bending region exposed by the bending opening portion of the first layer; a plurality of light-emitting elements disposed on the first layer in the pixels, respectively, wherein the plurality of light-emitting elements includes a plurality of color filters, respectively, and wherein the bending organic layer includes the same material as at least one of the color filters.
    Type: Application
    Filed: December 15, 2019
    Publication date: October 8, 2020
    Inventor: Hyeon Bum LEE
  • Patent number: 10782813
    Abstract: A display device may include: a substrate including an emission region and a non-emission region; at least one transistor disposed on the substrate; a display element layer including a light emitting element disposed to correspond to the emission region and a spacer disposed to correspond to the non-emission region; and a touch sensor disposed on the display element layer. The touch sensor may include a base layer including a sensing region and a non-sensing region, a plurality of touch electrodes provided in the sensing region, and an insulating pattern disposed to correspond to the spacer. The insulating pattern and the spacer may have the same thickness. Some of the touch electrodes may be disposed on the insulating pattern.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: September 22, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyeon Bum Lee, Hyoeng Ki Kim, Kwang Woo Park
  • Publication number: 20200295108
    Abstract: A display device including a substrate, a source electrode and a drain electrode on the substrate, the source electrode and the drain electrode being spaced apart from each other, a first layer on the source electrode or the drain electrode, a second layer directly on the first layer, and a first electrode on the second layer. A step difference between a top of the first layer and a top of the drain electrode is 100 ? or less.
    Type: Application
    Filed: May 29, 2020
    Publication date: September 17, 2020
    Applicant: Samsung Display Co. Ltd.
    Inventors: Hyeon Bum LEE, Hyoeng Ki KIM, Kyong Heon LEE, Dong Ki LEE, Eon Joo LEE, Jin Whan JUNG
  • Publication number: 20200285337
    Abstract: A display device that includes a substrate and a bank layer disposed on the substrate. The bank layer defines an emission area and a non-emission area of a pixel. A spacer is disposed on a portion of the bank layer. A touch member is disposed above the spacer. At least one overcoat layer is disposed on the touch member. A dielectric constant of the at least one overcoat layer in a region overlapping the spacer in a thickness direction of the substrate is larger than a dielectric constant of the overcoat layer in a region that does not overlap the spacer in the thickness direction of the substrate.
    Type: Application
    Filed: December 16, 2019
    Publication date: September 10, 2020
    Inventors: HYEON BUM LEE, Jin Whan Jung
  • Publication number: 20200251528
    Abstract: A display device and a manufacturing method which minimize a difference in touch sensitivity between regions of a display device are disclosed. The display includes a display area, a color filter area disposed over the display area, and a touch area disposed between the display area and the color filter area. The display area includes a substrate, an insulating layer disposed over the substrate, first and second electrodes, partition walls disposed between the insulating layer and the second electrode, an emission layer disposed in an opening formed by the first and second electrodes and adjacent partition walls, and a spacer disposed on at least one of the partition walls. The color filter area includes a first light blocking member disposed at a region overlapping the spacer and including at least two color filters stacked on each other.
    Type: Application
    Filed: January 22, 2020
    Publication date: August 6, 2020
    Applicant: Samsung Display Co., LTD.
    Inventor: Hyeon Bum LEE
  • Patent number: 10672848
    Abstract: A display device including a substrate, a source electrode and a drain electrode on the substrate, the source electrode and the drain electrode being spaced apart from each other, a first planarization layer on the source electrode and the drain electrode, a second planarization layer on the first planarization layer, and a first electrode on the second planarization layer. A step difference between a top of the first planarization layer and a top of the drain electrode is 100 ? or less.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: June 2, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyeon Bum Lee, Hyoeng Ki Kim, Kyong Heon Lee, Dong Ki Lee, Eon Joo Lee, Jin Whan Jung
  • Patent number: 10644083
    Abstract: An input sensing unit includes a base including light-transmitting areas and non-light transmitting areas. A light absorbing pattern is provided corresponding to the non-light transmitting areas and is configured to absorb incident light. A sensing electrode overlaps the light absorbing pattern. The light absorbing pattern has an aperture for exposing a light-transmitting area of the light-transmitting areas. A boundary of the aperture and an outer boundary of the light-transmitting area are spaced apart from each other. The input sensing unit has improved viewing angle/luminance ratio and improved characteristics of reflective color.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: May 5, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyeon Bum Lee, Jeong Won Kim, Hyoeng Ki Kim, Jun Hyuk Woo, Dong Ki Lee, Eon Joo Lee, Jin Ho Ju
  • Publication number: 20200119113
    Abstract: An organic light emitting display device including a base layer; an insulating layer disposed on the base layer and including a flat region having a flat surface and a lens region having a concave or convex surface; a dam disposed on the insulating layer and defining an opening exposing the lens region; and a color filter disposed on the lens region of the insulating layer and filling the opening, The dam includes a sensing electrode.
    Type: Application
    Filed: April 15, 2019
    Publication date: April 16, 2020
    Inventors: Hyeon Bum Lee, Hyoeng Ki Kim, Jun Hyuk Woo, Kwang Woo Park
  • Publication number: 20200117304
    Abstract: A touch sensor includes a base layer including a sensing area and a non-sensing area, a plurality of touch electrodes disposed in the sensing area, a dummy electrode disposed between the touch electrodes, the dummy electrode including a plurality of dummy patterns spaced apart from each other, and an insulating layer disposed on the touch electrodes and the dummy electrode, in which the insulating layer includes at least one discontinuous pattern in an area disposed between adjacent dummy patterns.
    Type: Application
    Filed: July 31, 2019
    Publication date: April 16, 2020
    Inventors: Hyeon Bum LEE, Hyeong Ki Kim