Patents by Inventor Hee-Keun Lee

Hee-Keun 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: 20210296537
    Abstract: A display device includes: a substrate having a display area and a non-display area; and a pixel in each of a pixel area in the display area. Each of the pixels includes: an insulating layer on the substrate and having an opening; first and second electrodes on the insulating layer and spaced apart from each other; a plurality of light emitting elements in the opening; a first contact electrode electrically connecting one end of the light emitting elements and the first electrode to each other; a second contact electrode electrically connecting another end of the light emitting elements and the second electrode to each other; a first insulating pattern on the first contact electrode; and a second insulating pattern on the second contact electrode. The first insulating pattern and the second insulating pattern are on the same layer and spaced apart from each other.
    Type: Application
    Filed: November 13, 2020
    Publication date: September 23, 2021
    Inventors: Seung Min Lee, Jin Taek Kim, Baek Hyeon Lim, Jin Yeong Kim, Kyung Tae Chae, Jung Hwan Yi, Hee Keun Lee
  • Publication number: 20210265324
    Abstract: A light emitting device may include: a substrate including emission areas; a first electrode disposed on the substrate; a second electrode disposed on the substrate and spaced apart from the first electrode; light emitting elements disposed on the substrate, each of the light emitting elements including a first end and a second end in a longitudinal direction of the light emitting elements; a bank disposed in each of the emission areas and including openings in which portions of each of the unit emission areas are exposed; a first contact electrode that electrically connects the first electrode with the first end of each of the light emitting elements; and a second contact electrode that electrically connects the second electrode with the second end of each of the light emitting elements. At least one of the light emitting elements may be disposed in each of the openings.
    Type: Application
    Filed: January 18, 2019
    Publication date: August 26, 2021
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae Jin KONG, Hee Keun LEE, Xinxing LI, Hyun Min CHO, Dae Hyun KIM, Myeong Hee KIM, Veidhes BASRUR, Chang Il TAE
  • Publication number: 20210217739
    Abstract: A display device includes a first substrate including a first sub-pixel area, a second sub-pixel area, and a third sub-pixel area; a first sub-pixel including a first light emitting element disposed in the first sub-pixel area; a second sub-pixel including a second light emitting element disposed in the second sub-pixel area; a third sub-pixel including a third light emitting element disposed in the third sub-pixel area; and a bank disposed between the first sub-pixel, the second sub-pixel, and the third sub-pixel and enclosing an emission area of each of the first sub-pixel, the second sub-pixel, and the third sub-pixel. The bank includes a color bank including a color filter material that blocks light of colors emitted from the first light emitting element, the second light emitting element, and the third light emitting element.
    Type: Application
    Filed: February 27, 2019
    Publication date: July 15, 2021
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee Keun LEE, Tae Jin KONG, Dae Hyun KIM, Xinxing LI, Chang Il TAE
  • Publication number: 20210202451
    Abstract: A light emitting device includes first and second electrodes disposed on a substrate; an insulating layer disposed on the substrate and including a groove extending in a first direction intersecting with the first and the second electrodes, and first and second contact portions that expose areas of the first and the second electrodes; light emitting elements disposed in the groove between the first and the second electrodes, each including first and second ends electrically connected to the first and second electrodes, respectively; a first contact electrode electrically connected to the light emitting elements on the first ends, and electrically connected to the first electrode on the first contact portion; and a second contact electrode electrically connected to the light emitting elements on the second ends, and electrically connected to the second electrode on the second contact portion.
    Type: Application
    Filed: February 20, 2019
    Publication date: July 1, 2021
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae Jin KONG, Dae Hyun KIM, Myeong Hee KIM, Veidhes BASRUR, Je Won YOO, Xinxing LI, Hee Keun LEE, Bek Hyun LIM, Hyun Min CHO, Chang Il TAE
  • Patent number: 11029563
    Abstract: A color conversion substrate for displaying a first color, a second color, and a third color may include a base substrate, a first light-blocker, a second light-blocker, a pattern layer, a first color converter, and a second color converter. The first light-blocker contacts a surface of the base substrate and may block first light of the third color. The second light-blocker contacts the surface of the base substrate and may block second light of the third color. The pattern layer is disposed on the first light-blocker and the second light-blocker and includes an optical pattern that includes protrusions. The first color converter overlaps the first light-blocker and may convert a first portion of incident light into light of the first color. The second color converter overlaps the second light-blocker and may convert a second portion of the incident light into light of the second color.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: June 8, 2021
    Inventors: Seung Jin Chu, Yeo Geon Yoon, Won Tae Kim, Hoon Kim, Hee Keun Lee
  • Publication number: 20210167253
    Abstract: A light emitting device includes first and second electrodes disposed on a substrate and spaced apart from each other; at least one light emitting diode disposed between the first and second electrodes; an insulating pattern overlapping an upper portion of the at least one light emitting diode and exposing first and second ends of the at least one light emitting diode; a first contact electrode electrically connecting the first end of the at least one light emitting diode to the first electrode; and a second contact electrode electrically connecting the second end of the at least one light emitting diode to the second electrode. The insulating pattern may completely overlap the first and second ends of the at least one light emitting diode in a plan view, and have a width reducing toward a lower portion of the insulating pattern.
    Type: Application
    Filed: January 17, 2019
    Publication date: June 3, 2021
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Veidhes BASRUR, Xinxing LI, Hee Keun LEE, Chang Il TAE, Tae Jin KONG, Myeong Hee KIM
  • Patent number: 11003005
    Abstract: A display apparatus includes a plurality of pixel units and each pixel unit includes a substrate, a first electrode, a second electrode, an image display part and a protective layer. The first electrode is formed on the substrate. The second electrode is formed over the first electrode while interposing a first insulating layer therebetween to define a TSC (tunnel-shaped cavity) extending in a first direction between the first and second electrodes. The image display part is provided in the TSC to display an image according to an electric field generated by the first and second electrodes. The protective layer covers the second electrode and seals the TSC. The display apparatus having the above structure is manufactured by forming the first electrode, a sacrificial layer and the second electrode and forming the image display part by removing the sacrificial layer.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: May 11, 2021
    Inventors: Yeun Tae Kim, Hee-Keun Lee, Pilsook Kwon, Sangil Kim, Nakcho Choi
  • Patent number: 10969619
    Abstract: A display device includes a display panel, a color conversion layer disposed on the display panel, and an adhesion member between the display panel and the color conversion layer. The color conversion layer includes a first conversion part configured to one of transmit a first color light and absorb first color light to emit second color light, a second conversion part configured to absorb the first color light to emit third color light, and a third conversion part configured to absorb the first color light to emit fourth color light, the first conversion part, the second conversion part, and the third conversion part are sequentially arranged in a first direction, the adhesion member is disposed on a bottom surface and a side surface of the first conversion part and attached to the display panel, and an air layer is defined between the display panel and the second and third conversion parts.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: April 6, 2021
    Inventors: Seung-jin Chu, Wontae Kim, Yeogeon Yoon, Hee-keun Lee
  • Patent number: 10955698
    Abstract: A color conversion panel includes a substrate that includes first to third pixel areas, a first color conversion layer on the substrate in the first pixel area that converts incident light into first color light, a second color conversion layer on the substrate in the second pixel area that converts the incident light into second color light, a first color filter layer between the substrate and the first color conversion layer that has the first color and blocks incident light not converted by the first color conversion layer, a second color filter layer between the substrate and the second color conversion layer that has a third color and blocks incident light not converted by the second color conversion layer, and a light shielding layer on the substrate between the second and the third pixel areas that has the first color.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: March 23, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee-Keun Lee, Yeogeon Yoon, Jangsoo Kim, Wontae Kim, Hoon Kim, Seung-Jin Chu
  • Patent number: 10847685
    Abstract: A photoluminescence apparatus includes a base substrate, a first color conversion pattern disposed on the base substrate, and having a color conversion material, wherein a first stop pattern is formed at the first color conversion pattern, and a capping layer disposed on the first color conversion pattern for capping the first color conversion pattern, wherein a first hole overlapping the first color conversion pattern in a plan view is formed through the capping layer. The first stop pattern is disposed adjacent to the first hole in a plan view.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: November 24, 2020
    Inventors: Hee-Keun Lee, Taejin Kong, Hoon Kim, Keunwoo Park
  • Publication number: 20200326585
    Abstract: A display panel includes a first display substrate, a second display substrate. The second display substrate includes a substrate, a color conversion layer including a first conversion part configured to absorb light of a first color and to emit light of a second color, a second conversion part configured to absorb the light of the first color and to emit light of a third color, and a third conversion part configured to transmit the light of the first color, and a filter layer including a first filter overlapping with the first conversion part and having the second color, a second filter overlapping with the second conversion part and having the third color, a third filter overlapping with the third conversion part and having the first color, and an auxiliary filter overlapping with the second conversion part and configured to absorb the light of the first color.
    Type: Application
    Filed: June 24, 2020
    Publication date: October 15, 2020
    Inventors: Seung-jin CHU, Hoon KIM, Wontae KIM, Yeogeon YOON, Hee-keun LEE
  • Publication number: 20200273906
    Abstract: A display device includes at least one first and second electrodes extending in a first direction, at least one first and second light emitting elements disposed therebetween, a first contact electrode partially covering the first electrode and contacting a first end of the first light emitting element, a second contact electrode partially covering the second electrode and contacting a third end of the second light emitting element, and a third contact electrode disposed between the first and second contact electrodes and contacting a second end of the first light emitting element and a fourth end of the second light emitting element, in which a distance between the first and second electrodes is greater than a longitudinal length of at least one of the first and second light emitting elements, and the first and second light emitting elements are connected in series between the first and second electrodes.
    Type: Application
    Filed: January 14, 2019
    Publication date: August 27, 2020
    Inventors: Xin Xing LI, Tae Jin KONG, Hee Keun LEE, Hyun Min CHO, Chang II TAE
  • Patent number: 10747047
    Abstract: A display device includes: a light provider; a wavelength conversion layer above the light provider and including a first surface and sides; and a capping layer on the wavelength conversion layer and including a first area provided on the sides of the wavelength conversion layer and a second area provided on the first surface of the wavelength conversion layer, and the first area of the capping layer includes cracks.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: August 18, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee Keun Lee, Won Tae Kim, Yeo Geon Yoon, Seung Jin Chu
  • Patent number: 10707276
    Abstract: An exemplary embodiment of the present inventive concept provides a display device including: a thin film transistor panel comprising a display area and a peripheral area; and a color conversion panel overlapping the thin film transistor panel, wherein the color conversion panel includes: a substrate; a color conversion layer; a first organic layer disposed between the color conversion layer and the thin film transistor panel; a second organic layer disposed between the first organic layer and the thin film transistor panel; and a polarization layer disposed between the second organic layer and the thin film transistor panel, wherein the first organic layer overlaps the display area and the peripheral area, and the second organic layer overlaps the display area.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: July 7, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won Tae Kim, Tae Jin Kong, Hee-Keun Lee, Seung-Jin Chu
  • Patent number: 10698251
    Abstract: A display panel includes a first display substrate, a second display substrate. The second display substrate includes a substrate, a color conversion layer including a first conversion part configured to absorb light of a first color and to emit light of a second color, a second conversion part configured to absorb the light of the first color and to emit light of a third color, and a third conversion part configured to transmit the light of the first color, and a filter layer including a first filter overlapping with the first conversion part and having the second color, a second filter overlapping with the second conversion part and having the third color, a third filter overlapping with the third conversion part and having the first color, and an auxiliary filter overlapping with the second conversion part and configured to absorb the light of the first color.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: June 30, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-jin Chu, Hoon Kim, Wontae Kim, Yeogeon Yoon, Hee-keun Lee
  • Patent number: 10606120
    Abstract: A display device includes: a liquid crystal layer disposed between a first substrate and a second substrate; a color conversion layer disposed between the first substrate and the second substrate and including a first light emitter configured to absorb first color light outputted from a light source and to emit second color light that is different from the first color light; a pixel electrode overlapping a display area; a first transistor connected to the pixel electrode; a driving circuit including a second transistor and providing a driving signal to the first transistor; a light blocking member disposed on the first substrate and overlapping the first transistor; and an polarizing layer disposed between the liquid crystal layer and the color conversion layer and including a wire grid pattern overlapping the display area and a reflection pattern extending from the wire grid pattern to overlap the non-display area.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: March 31, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Keunwoo Park, Taejin Kong, Yeogeon Yoon, Hee-keun Lee
  • Patent number: 10539838
    Abstract: A display device may include a substrate, a transistor, a pixel electrode, a roof layer, and a liquid crystal layer positioned in microcavities between the roof layer and the substrate. The roof layer may include a first roof portion and a second roof portion. The first roof portion may overlap the pixel electrode and may be directly connected to the second roof portion. The second roof portion may be positioned closer to the transistor than the first roof portion. A minimum distance between the substrate and the second roof portion may be less than a minimum distance between the substrate and the first roof portion.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: January 21, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee-Keun Lee, Myeong Hee Kim, Han Joon Yoo, Dae Ho Lee
  • Publication number: 20190391444
    Abstract: A display device includes a display panel, a color conversion layer disposed on the display panel, and an adhesion member between the display panel and the color conversion layer. The color conversion layer includes a first conversion part configured to one of transmit a first color light and absorb first color light to emit second color light, a second conversion part configured to absorb the first color light to emit third color light, and a third conversion part configured to absorb the first color light to emit fourth color light, the first conversion part, the second conversion part, and the third conversion part are sequentially arranged in a first direction, the adhesion member is disposed on a bottom surface and a side surface of the first conversion part and attached to the display panel, and an air layer is defined between the display panel and the second and third conversion parts.
    Type: Application
    Filed: March 27, 2019
    Publication date: December 26, 2019
    Inventors: Seung-jin CHU, Wontae KIM, Yeogeon YOON, Hee-keun LEE
  • Patent number: 10514567
    Abstract: A display panel with microcavities each having ends of asymmetric cross-sectional area. An exemplary display panel has a substrate; a pixel electrode formed on the substrate; a first black matrix and a second black matrix each disposed on the substrate; and a supporting member disposed on the substrate over the pixel electrode and the black matrix, the supporting member shaped so as to form a microcavity between the pixel electrode and the supporting member, the microcavity having an upper surface proximate to the supporting member and a lower surface opposite the upper surface. The microcavity has one end positioned over the first black matrix, and another end opposite the first end and positioned over the second black matrix; the lower surface of the microcavity has first and second channels disposed therein, the first channel positioned over the first black matrix, and the second channel positioned over the second black matrix.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: December 24, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee-Keun Lee, Jung Wook Lee, Yeun Tae Kim, Hae Ju Yun
  • Publication number: 20190377223
    Abstract: A display device includes: a light provider; a wavelength conversion layer above the light provider and including a first surface and sides; and a capping layer on the wavelength conversion layer and including a first area provided on the sides of the wavelength conversion layer and a second area provided on the first surface of the wavelength conversion layer, and the first area of the capping layer includes cracks.
    Type: Application
    Filed: January 14, 2019
    Publication date: December 12, 2019
    Inventors: Hee Keun LEE, Won Tae KIM, Yeo Geon YOON, Seung Jin CHU