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: 20190378881
    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: Application
    Filed: November 29, 2018
    Publication date: December 12, 2019
    Inventors: Won Tae KIM, Tae Jin KONG, Hee-Keun LEE, Seung-Jin CHU
  • Publication number: 20190310522
    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: Application
    Filed: October 15, 2018
    Publication date: October 10, 2019
    Inventors: Seung Jin CHU, Yeo Geon YOON, Won Tae KIM, Hoon KIM, Hee Keun LEE
  • Publication number: 20190258109
    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: February 13, 2019
    Publication date: August 22, 2019
    Inventors: Seung-jin CHU, Hoon KIM, Wontae KIM, Yeogeon YOON, Hee-keun LEE
  • Publication number: 20190243200
    Abstract: A display device includes a display panel and a light source configured to provide a first color light to the display panel. The display panel includes a first display substrate (DS), a second DS facing the first DS, a column spacer disposed between the first and second DSs, and a liquid crystal layer filled between the first and second DSs. The first DS includes: a first base substrate (FBS); a thin film transistor (TFT) disposed on the FBS, the TFT including a gate electrode, first and second electrodes, and an activation layer; a first insulation layer (IL) covering the TFT and disposed on the FBS; and a second IL disposed on the first IL and including an opening exposing a first portion of the first IL overlapping the activation layer. The column spacer is disposed on the first portion to cover the activation layer and shield the first color light.
    Type: Application
    Filed: February 6, 2019
    Publication date: August 8, 2019
    Inventors: Keunwoo Park, Yeogeon Yoon, Hee-keun Lee, Taejin Kong, Wontae Kim, Seok-joon Hong
  • Publication number: 20190235311
    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: Application
    Filed: September 4, 2018
    Publication date: August 1, 2019
    Inventors: HEE-KEUN LEE, YEOGEON YOON, JANGSOO KIM, WONTAE KIM, HOON KIM, SEUNG-JIN CHU
  • Publication number: 20190079352
    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: Application
    Filed: September 6, 2018
    Publication date: March 14, 2019
    Inventors: Keunwoo PARK, Taejin KONG, Yeogeon YOON, Hee-keun LEE
  • Patent number: 10109244
    Abstract: A display device includes a substrate and pixels arranged on the substrate in a matrix form. The substrate includes a display area in which the pixels are arranged and a non-display area disposed adjacent to a side of the display area. Each pixel includes a cover layer that extends in a row direction that includes a sidewall portion connected to the substrate and a cover portion spaced apart from the substrate and connected to the sidewall portion to define a tunnel-shaped cavity on the substrate. A width of the sidewall portion between adjacent pixels is less than a width of the sidewall portion disposed at an outermost position, and the cover layer seals one side of the tunnel-shaped cavity in the pixels arranged in a first row and a last row.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: October 23, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yeun Tae Kim, Hee-Keun Lee, Jaekeun Lim
  • Publication number: 20180269362
    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: Application
    Filed: November 29, 2017
    Publication date: September 20, 2018
    Inventors: Hee-Keun Lee, Taejin Kong, Hoon Kim, Keunwoo Park
  • Patent number: 10036918
    Abstract: The inventive concept relates to a light unit and a diffuser separated from the light source at a predetermined distance and having a cylindrical structure, and a cylindrical structure display device including the same.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: July 31, 2018
    Assignee: Samsung Display Co., ltd.
    Inventors: Seon Uk Lee, Nam Seok Roh, Woo Jae Lee, Hee-Keun Lee, Don Chan Cho
  • Publication number: 20180107049
    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: Application
    Filed: December 15, 2017
    Publication date: April 19, 2018
    Inventors: Yeun Tae KIM, Hee-Keun LEE, Pilsook KWON, Sangil KIM, Nakcho CHOI
  • Patent number: 9939670
    Abstract: The present invention relates to a display device capable of more stably forming a horizontal electric field. A display device according to an exemplary embodiment of the present invention includes a substrate; a thin film transistor disposed on the substrate; a microcavity having a first side, a second side opposite to the first side, and an upper surface extending between the first side and the second side; a pixel electrode connected to the thin film transistor and positioned along the first side; a common electrode extending along the second side; a roof layer covering the pixel electrode, the common electrode, and the upper surface of the microcavity; and a liquid crystal layer disposed in the microcavity.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: April 10, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Eun Hee Han, Hee-Keun Lee
  • Patent number: 9910305
    Abstract: A method for manufacturing a liquid crystal display according to an exemplary embodiment of the present invention includes: forming a polymer thin film layer on a substrate; forming a thin film transistor (TFT) substrate on the polymer thin film layer; forming a thin film transistor array on the thin film transistor substrate; forming an upper polarizing plate on the thin film transistor substrate on which the thin film transistor array is formed; applying a laser to the polymer thin film layer to remove a portion of the polymer thin film layer and the substrate; attaching an adhesive layer onto a rear surface of the polymer thin film layer from which the substrate is separated; and attaching the polymer thin film layer onto which the adhesive layer is attached and a lower polarizing plate together.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: March 6, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myung Hwan Kim, Myeong Hee Kim, Dae Ho Lee, Hee-Keun Lee
  • Publication number: 20180059469
    Abstract: A curved display device may include a first substrate on which a plurality of scan lines are disposed to extend in a first direction; a first pixel unit disposed over the scan lines and including first, second and third sub-pixel electrodes, which are adjacent to one another in a second direction that is different from the first direction; a second substrate facing the first substrate; and a color conversion layer disposed on the second substrate and including first and second wavelength conversion layers, which overlap with the first and second sub-pixel electrodes, respectively. Each of the first, second and third sub-pixel electrodes may have long sides, which extend in the first direction, and short sides, which extend in the second direction, and each of the first and second wavelength conversion layers may include wavelength conversion materials.
    Type: Application
    Filed: August 23, 2017
    Publication date: March 1, 2018
    Inventors: Jang Il KIM, Keun Woo PARK, Su Wan WOO, Yeo Geon YOON, Hee Keun LEE
  • Patent number: 9846323
    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: April 18, 2011
    Date of Patent: December 19, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yeun Tae Kim, Hee-Keun Lee, Pilsook Kwon, Sangil Kim, Nakcho Choi
  • Patent number: 9798209
    Abstract: A display device according to an exemplary embodiment includes: a substrate, a thin film transistor on the substrate, a pixel electrode connected to the thin film transistor, a common electrode on the pixel electrode to be spaced apart from the pixel electrode while a plurality of microcavities are interposed between the common electrode and the pixel electrode, a roof layer on the common electrode, an alignment layer on the pixel electrode and beneath the common electrode and including a photosensitive material, a liquid crystal layer filling the microcavities, and an encapsulation layer on the roof layer to seal the microcavities.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: October 24, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seon Uk Lee, Nam Seok Roh, Hee-Keun Lee, Seok-Joon Hong
  • Patent number: 9772516
    Abstract: A liquid crystal display is provided that includes: a substrate; a thin film transistor disposed on the substrate; a protection layer disposed on the thin film transistor; a first electrode and a second electrode disposed on the protection layer; an alignment layer disposed on the second electrode; and a roof layer facing the second electrode, wherein a plurality of microcavities are formed between the second electrode and the roof layer, the microcavities include a liquid crystal material, and the alignment layer includes a photo-alignment material.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: September 26, 2017
    Assignee: Samsung Display Co., ltd.
    Inventors: Hee-Keun Lee, Suk Hoon Kang, Sang Il Kim, Yeun Tae Kim, Dong Youb Oh, Mi Hwa Lee, Woo Jae Lee, Jun Woo Lee
  • Publication number: 20170242289
    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: Application
    Filed: May 5, 2017
    Publication date: August 24, 2017
    Inventors: Hee-Keun LEE, Jung Wook LEE, Yeun Tae KIM, Hae Ju YUN
  • Publication number: 20170168355
    Abstract: A liquid crystal display according to an exemplary embodiment of the inventive concept includes: a first alignment layer disposed on a first substrate; a second substrate facing the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate; and a second alignment layer disposed between the liquid crystal layer and the second substrate, wherein a surface of at least one of the first alignment layer and the second alignment layer may be provided with a plurality of grooves, and a width of each the grooves may be in a range of about 0.05 to about 20.00 ?m.
    Type: Application
    Filed: August 8, 2016
    Publication date: June 15, 2017
    Inventors: Hee-Keun LEE, Myeong Hee KIM, Han Joon YOO, Dae Ho LEE
  • Patent number: 9671633
    Abstract: There is provided a display device including a substrate, a black matrix disposed on one side of the substrate, a thin film transistor disposed on the other side of the substrate, a common electrode and a pixel electrode disposed on the thin film transistor and overlapping with each other with an insulating layer disposed therebetween, a roof layer formed to be spaced apart from the pixel electrode and the common electrode with a microcavity disposed therebetween, including a supporting member, and having an injection hole through which a portion of the microcavity is exposed, a liquid crystal layer filling the microcavity, and an overcoat formed on the roof layer so as to cover the injection hole and sealing the microcavity.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: June 6, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dae Ho Lee, Seong Gyu Kwon, Hee Keun Lee
  • Patent number: 9664937
    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: August 8, 2013
    Date of Patent: May 30, 2017
    Assignee: Samsung Display Co., LTD.
    Inventors: Hee-Keun Lee, Jung Wook Lee, Yeun Tae Kim, Hae Ju Yun