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).

  • Patent number: 10854849
    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: July 23, 2018
    Date of Patent: December 1, 2020
    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: 20200348520
    Abstract: A display device includes a substrate, a first display element which is disposed on the substrate, and a plurality of diffraction patterns which are disposed on a path of light emitted from the first display element and arranged along a direction with a first period. when a width of a cross section of one of the plurality of diffraction patterns is defined as a first length, the first period and the first length satisfy Inequality (1): 0.4?d1/DP1?1,??(1) where DP1 is the first period, and d1 is the first length.
    Type: Application
    Filed: June 15, 2020
    Publication date: November 5, 2020
    Inventors: Sang Hwan CHO, So Young LEE, Sun Young JUNG, Chung Sock CHOI, Sun Mi KANG, Hyun Ho KIM, Cheol JANG, Sang Hyun HAN
  • Patent number: 10782529
    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: July 23, 2018
    Date of Patent: September 22, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chung Sock Choi, Hyun Ho Kim, So Young Lee, Sang Hwan Cho
  • Patent number: 10684481
    Abstract: A display device includes a substrate, a first display element which is disposed on the substrate, and a plurality of diffraction patterns which are disposed on a path of light emitted from the first display element and arranged along a direction with a first period. when a width of a cross section of one of the plurality of diffraction patterns is defined as a first length, the first period and the first length satisfy Inequality (1): 0.4?d1/DP1?1,??(1) where DP1 is the first period, and d1 is the first length.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: June 16, 2020
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventors: Sang Hwan Cho, So Young Lee, Sun Young Jung, Chung Sock Choi, Sun Mi Kang, Hyun Ho Kim, Cheol Jang, Sang Hyun Han
  • Patent number: 10673016
    Abstract: A display device includes: a substrate; a plurality of pixels on the substrate; an organic encapsulation layer covering a pixel area including at least one pixel; a first inorganic encapsulation layer on the organic encapsulation layer and having a first crack at a pixel area gap; and a second inorganic encapsulation layer on the first inorganic encapsulation layer and filling the first crack.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: June 2, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Oh June Kwon, Jin Koo Kang, Chung Sock Choi
  • Patent number: 10599000
    Abstract: The present disclosure provides a smart window including a first base layer and a second base layer positioned to face each other; a first conductive layer and a second conductive layer respectively positioned at inner surfaces of the first base layer and the second base layer; and an electrolyte layer interposed between the first conductive layer and the second conductive layer, wherein the first conductive layer includes a plurality of first nanostructures, and the second conductive layer includes a plurality of second nanostructures having a different average length from the plurality of first nanostructures.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: March 24, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Hwan Cho, Jong Lam Lee, Chung Sock Choi, So Young Lee, Sun Young Jung, Illhwan Lee, Ki Ryong Jeong
  • Publication number: 20190094541
    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: July 23, 2018
    Publication date: March 28, 2019
    Inventors: Chung Sock CHOI, Hyun Ho KIM, So Young LEE, Sang Hwan CHO
  • Publication number: 20190088904
    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: July 23, 2018
    Publication date: March 21, 2019
    Inventors: Sang Hwan CHO, Chung Sock CHOI, Hyun Ho KIM, So Young LEE, Cheol JANG, Sun Young JUNG
  • Patent number: 10181585
    Abstract: A display device includes a substrate, a first electrode, an organic light-emitting layer, a second electrode, a phase matching layer, and at least one light-absorbing layer. The substrate includes a plurality of pixel regions and a non-pixel region. The non-pixel region is arranged between adjacent pixel regions. The first electrode is arranged in each pixel region. The organic light-emitting layer is arranged on the first electrode. The second electrode is arranged on the organic light-emitting layer. The phase matching layer is arranged on the second electrode. The at least one light-absorbing layer is arranged on the phase matching layer. A thickness of the second electrode in the non-pixel region is different than a thickness of the second electrode in the pixel regions.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: January 15, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Doo Hwan Kim, Sang Hwan Cho, Chung Sock Choi
  • Publication number: 20180350883
    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: Application
    Filed: May 16, 2018
    Publication date: December 6, 2018
    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: 20180314067
    Abstract: A display device includes a substrate, a first display element which is disposed on the substrate, and a plurality of diffraction patterns which are disposed on a path of light emitted from the first display element and arranged along a direction with a first period. when a width of a cross section of one of the plurality of diffraction patterns is defined as a first length, the first period and the first length satisfy Inequality (1): 0.4?d1/DP1?1,??(1) where DP1 is the first period, and d1 is the first length.
    Type: Application
    Filed: March 29, 2018
    Publication date: November 1, 2018
    Inventors: Sang Hwan CHO, So Young LEE, Sun Young JUNG, Chung Sock CHOI, Sun Mi KANG, Hyun Ho KIM, Cheol JANG, Sang Hyun HAN
  • Publication number: 20180212188
    Abstract: A display device includes: a substrate; a plurality of pixels on the substrate; an organic encapsulation layer covering a pixel area including at least one pixel; a first inorganic encapsulation layer on the organic encapsulation layer and having a first crack at a pixel area gap; and a second inorganic encapsulation layer on the first inorganic encapsulation layer and filling the first crack.
    Type: Application
    Filed: March 20, 2018
    Publication date: July 26, 2018
    Inventors: Oh June Kwon, Jin Koo Kang, Chung Sock Choi
  • Patent number: 10019121
    Abstract: Provided is a display device including: a display unit including a pixel and a non-pixel area; an encapsulation unit configured to seal the display unit; a touch sensing electrode at the non-pixel area on the encapsulation unit and provided with a plurality of first openings; and a reflection reducing unit at the pixel and the non-pixel area on the encapsulation unit and configured as a multilayer of a metal layer and a dielectric layer. The metal layer includes a non-pixel portion overlapping the touch sensing electrode and provided with a plurality of second openings.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: July 10, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chung Sock Choi, Sang Hwan Cho
  • Patent number: 9886113
    Abstract: A display device including a substrate having a display area including a plurality of pixels and a peripheral area positioned outside the display area, a sealant in the peripheral area, a first spacer on the sealant, an encapsulation substrate on the first spacer, and a touch sensor on the encapsulation substrate facing the display area.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: February 6, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chung Sock Choi, Seung Hun Kim, Seung Yong Song, Cheol Jang, Sang Hwan Cho
  • Patent number: 9880686
    Abstract: A touch screen panel includes first electrode patterns disposed in a first direction, first connection patterns electrically connecting the first electrode patterns, second electrode patterns disposed in a second direction intersecting the first direction and insulated from the first electrode patterns, insulating patterns disposed on the first connection patterns, and second connection patterns disposed on the insulating patterns and electrically connecting the second electrode patterns, in which at least one of the first electrode patterns, the first connection patterns, the second electrode patterns, and the second connection patterns include a first polymer layer including a conductive material infiltrated therein, and the insulating patterns comprise a second polymer layer comprising a dielectric material infiltrated therein.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: January 30, 2018
    Assignees: Samsung Display Co., Ltd., IUCF-HYU
    Inventors: Seung Hun Kim, Cheol Jang, Sang Hwan Cho, Chung Sock Choi, Myung Mo Sung
  • Publication number: 20170373282
    Abstract: A display device includes a substrate, a first electrode, an organic light-emitting layer, a second electrode, a phase matching layer, and at least one light-absorbing layer. The substrate includes a plurality of pixel regions and a non-pixel region. The non-pixel region is arranged between adjacent pixel regions. The first electrode is arranged in each pixel region. The organic light-emitting layer is arranged on the first electrode. The second electrode is arranged on the organic light-emitting layer. The phase matching layer is arranged on the second electrode. The at least one light-absorbing layer is arranged on the phase matching layer. A thickness of the second electrode in the non-pixel region is different than a thickness of the second electrode in the pixel regions.
    Type: Application
    Filed: June 27, 2017
    Publication date: December 28, 2017
    Inventors: Doo Hwan KIM, Sang Hwan CHO, Chung Sock CHOI
  • Publication number: 20170371220
    Abstract: The present disclosure provides a smart window including a first base layer and a second base layer positioned to face each other; a first conductive layer and a second conductive layer respectively positioned at inner surfaces of the first base layer and the second base layer; and an electrolyte layer interposed between the first conductive layer and the second conductive layer, wherein the first conductive layer includes a plurality of first nanostructures, and the second conductive layer includes a plurality of second nanostructures having a different average length from the plurality of first nanostructures.
    Type: Application
    Filed: February 16, 2017
    Publication date: December 28, 2017
    Inventors: Sang Hwan CHO, Jong Lam LEE, Chung Sock CHOI, So Young LEE, Sun Young JUNG, Illhwan LEE, Ki Ryong JEONG
  • Patent number: 9837639
    Abstract: According to one or more embodiments of the present invention, a display apparatus includes: a substrate; a display unit which is formed on the substrate and includes an emission area and a non-emission area; a first coating layer which is formed on the display unit and has an uneven area formed on the emission area; a first blocking layer which is formed on the non-emission area of the first coating layer; and a second blocking layer which is formed on the first blocking layer and prevents reflection of external light.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: December 5, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Ho Kim, Soo-Youn Kim, Seung-Yong Song, Sang-Hwan Cho, Jin-Koo Kang, Seung-Hun Kim, Cheol Jang, Chung-Sock Choi, Sang-Hyun Park
  • Patent number: 9733770
    Abstract: A touch sensing structure and display device including the same are disclosed. In one aspect, the display device includes a display panel including a light-emitting region and a non-light-emitting region and a touch sensor formed over the display panel and including a plurality of sensing patterns. The display device also includes a destructive interference unit formed over the display panel and overlapping the touch sensor. The destructive interference unit includes a plurality of dielectric layers and a plurality of metal layers that are alternately stacked. At least one of the metal layers includes a plurality of metal patterns that are separated from each other.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: August 15, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chung Sock Choi, Jin Koo Kang, Soo Youn Kim, Seung Hun Kim, Hyun Ho Kim, Seung Yong Song, Cheol Jang, Sang Hwan Cho, Sang Hyun Park
  • Patent number: 9698203
    Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the display includes a substrate and a display layer formed over the substrate and including a pixel area and a non-pixel area. The display also includes an upper thin layer formed over the display layer, wherein the upper thin layer comprises at least first and second conductive layers and a dielectric layer formed between the first and second conductive layers, wherein the second conductive layer is closer to the substrate than the first conductive layer, and wherein the first and second conductive layers are patterned as a touch electrode. The display further includes a light absorbing member at least partially overlapping the non-pixel area and not overlapping the pixel area.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: July 4, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Hwan Cho, Jin Koo Kang, Soo Youn Kim, Seung Hun Kim, Hyun Ho Kim, Seung Yong Song, Cheol Jang, Chung Sock Choi, Sang Hyun Park