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).
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Publication number: 20250191536Abstract: A display device includes: a display panel comprising a pixel, wherein the pixel includes: a light emitting element comprising an anode connected with a first power line and a cathode; a first transistor connected between the cathode and a second power line and configured to operate based on a potential of a first node; a second transistor connected between the first node and a data line and configured to receive a first scan signal; a third transistor connected between the first node and a reference voltage line and configured to receive a second scan signal; and a fourth transistor connected between the first transistor and the first power line.Type: ApplicationFiled: December 3, 2024Publication date: June 12, 2025Inventors: SUNHO KIM, MINWOO BYUN, CHAEHAN HYUN, JI-HYUN KA, WONKYU KWAK, YOOMIN KO, Hyewon KIM, JUCHAN PARK, PILSUK LEE, CHUNG SOCK CHOI, SUNGJIN HONG
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Publication number: 20250176367Abstract: A display device includes a base layer, a driving element layer including a transistor, insulating layers, and a driving connection part electrically connected to the transistor, a light emitting element layer including a pixel defining layer in which a light emitting opening and a through-hole that does not overlap the light emitting opening are defined, a light emitting element located in the light emitting opening, and a separator located on the pixel defining layer, and a conductive pattern located below the separator and including a contact part in the through-hole, and an extension part connected to the contact part and located on a top surface of the pixel defining layer. The light emitting element includes an anode on the driving element layer, an intermediate layer on the anode, and a cathode on the intermediate layer, and the contact part is electrically connected to the driving connection part.Type: ApplicationFiled: November 7, 2024Publication date: May 29, 2025Inventors: JUCHAN PARK, YOOMIN KO, SUNHO KIM, Hyewon KIM, Yerim SON, PILSUK LEE, CHUNG SOCK CHOI, SUNGJIN HONG
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Publication number: 20250174187Abstract: Provided is a display panel including a driving element layer having a pixel driver, a light-emitting element disposed on the driving element layer and having a first electrode, an intermediate layer disposed on the first electrode and having at least a light-emitting layer, and a second electrode disposed on the intermediate layer, a pixel-defining layer disposed on the driving element layer and having an opening exposing at least a portion of the first electrode, a connection electrode disposed on the pixel-defining layer and electrically connected to the pixel driver and the second electrode, and a separator disposed on the pixel-defining layer. In a contact region adjacent to the separator, a lower surface of the second electrode is in contact with an upper surface of the connection electrode.Type: ApplicationFiled: September 11, 2024Publication date: May 29, 2025Applicant: Samsung Display Co., Ltd.Inventors: JUCHAN PARK, SUNHO KIM, CHUNG SOCK CHOI, PILSUK LEE, SUNGJIN HONG
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Publication number: 20250176384Abstract: A display panel includes: a driving element layer including: a first pixel driver including a first conductive pattern; and a second pixel driver including a second conductive pattern; a light emitting element on the driving element layer, and including a first electrode, an intermediate layer on the first electrode, and a second electrode on the intermediate layer; a connection electrode on the driving element layer, and electrically connected with the first pixel driver and the second electrode; and a metal layer between the second conductive pattern and the connection electrode in a cross-sectional view.Type: ApplicationFiled: October 31, 2024Publication date: May 29, 2025Inventors: SUNHO KIM, YOOMIN KO, Hyewon KIM, JUCHAN PARK, PILSUK LEE, CHUNG SOCK CHOI, SUNGJIN HONG
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Publication number: 20250151545Abstract: Provided are a display device and a method for fabricating the same. The display device includes a circuit layer having a first semiconductor layer; a first gate insulating layer covering the first semiconductor layer; a first gate conductive layer on the first gate insulating layer; a second gate insulating layer covering the first gate conductive layer; a second gate conductive layer on the second gate insulating layer; a first interlayer insulating layer covering the second gate conductive layer; and a second semiconductor layer on the first interlayer insulating layer. The second gate conductive layer comprises a first power line. The first gate conductive layer includes a first capacitor electrode that overlaps a part of the first power line. The second semiconductor layer includes a first capacitor auxiliary electrode electrically connected to the first capacitor electrode.Type: ApplicationFiled: June 12, 2024Publication date: May 8, 2025Inventors: Sun Ho KIM, Yoo Min KO, Ju Chan PARK, Pil Suk LEE, Chung Sock CHOI
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Patent number: 12294015Abstract: A display device includes a first display area and a second display area; a first pixel circuit part positioned on the first display area; a first light-emitting element electrically connected to the first pixel circuit part; a second pixel circuit part positioned in the second display area; second light-emitting elements electrically connected to the second pixel circuit part; and a driving circuit part electrically connected to the first pixel circuit part and the second pixel circuit part and overlapping the second light-emitting elements in a plan view.Type: GrantFiled: April 18, 2022Date of Patent: May 6, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ju Chan Park, Sun Ho Kim, Ja Eun Lee, Pil Suk Lee, Chung Sock Choi
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Publication number: 20250143123Abstract: A display panel including a driving device layer including a pixel driver, a light emitting device disposed on the driving device layer and including a first electrode, an intermediate layer disposed on the first electrode, and a second electrode disposed on the intermediate layer, a pixel defining film disposed on the driving device layer and defining an opening through which at least a portion of the first electrode may be exposed, and a connection electrode disposed on the pixel defining film and electrically connected to the pixel driver and the second electrode, wherein the intermediate layer includes a functional layer having a first area and a light emitting layer having a second area that may be smaller than the first area.Type: ApplicationFiled: October 22, 2024Publication date: May 1, 2025Applicant: Samsung Display Co., Ltd.Inventors: YOOMIN KO, SUNHO KIM, JUCHAN PARK, Hyewon KIM, Yerim SON, PILSUK LEE, CHUNG SOCK CHOI, SUNGJIN HONG
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Publication number: 20250081754Abstract: A display device includes: a base layer; a light emitting element on the base layer, and including a first electrode, an intermediate layer on the first electrode, and a second electrode on the intermediate layer; a pixel definition film on the first electrode, and having a light emitting opening exposing a portion of the first electrode; a separator on the pixel definition film, and disconnecting the second electrode; and an encapsulation layer on the pixel definition film, and including: a first encapsulation layer including a first sub-layer covering the separator, a second sub-layer on the first sub-layer, and a third sub-layer on the second sub-layer; a second encapsulation layer on the first encapsulation layer, and including an organic material; and a third encapsulation layer on the second encapsulation layer, and including an inorganic material. At least one of the first sub-layer or the second sub-layer includes an organic material.Type: ApplicationFiled: November 19, 2024Publication date: March 6, 2025Inventors: SUNHO KIM, YOOMIN KO, Hyewon KIM, JUCHAN PARK, PILSUK LEE, CHUNG SOCK CHOI, SUNGJIN HONG
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Patent number: 12239001Abstract: A display device includes a display area including a first display area and a second display area adjacent to each other; a driving circuit, at least part of the driving circuit being disposed in the second display area; first pixel circuit units disposed in the first display area; first light emitting elements disposed in the first display area and electrically connected to the first pixel circuit units; second pixel circuit units disposed in the second display area; second light emitting elements disposed in the second display area and two or more of the second light emitting elements are electrically connected to a second pixel circuit unit; and a light blocking layer overlapping at least one of the second light emitting elements in a plan view.Type: GrantFiled: July 28, 2022Date of Patent: February 25, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Chung Sock Choi, Sun Ho Kim, Hye Won Kim, Sun Hee Lee
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Patent number: 12223910Abstract: A display panel includes a transistor, a light emitting device electrically connected to the transistor, a connection wiring electrically connecting the transistor to the light emitting device and including side surfaces, a capping pattern disposed on the transistor and contacting at least a side surface among side surfaces, an upper insulating layer disposed on the transistor and including a first opening that overlaps the at least the side surface, and a pixel definition layer disposed on the upper insulating layer and covering the first opening of the upper insulating layer.Type: GrantFiled: October 20, 2023Date of Patent: February 11, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyewon Kim, Sungjin Hong, Yoomin Ko, Sunho Kim, Juchan Park, Pilsuk Lee, Chung Sock Choi
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Publication number: 20250035934Abstract: 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 ? d ? 1 / DP ? 1 ? 1 , ( 1 ) where DP1 is the first period, and d1 is the first length.Type: ApplicationFiled: October 14, 2024Publication date: January 30, 2025Inventors: Sang Hwan CHO, So Young LEE, Sun Young JUNG, Chung Sock CHOI, Sun Mi KANG, Hyun Ho KIM, Cheol JANG, Sang Hyun HAN
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Patent number: 12185613Abstract: A display device includes a display panel including a light-emitting device to emit light; and an input sensor disposed on the display panel. The input sensor includes a first insulating layer disposed on the display panel; a first conductive layer disposed on the first insulating layer; a second insulating layer covering the first conductive layer; and a second conductive layer disposed on the second insulating layer. At least one of the first and second insulating layers includes a plurality of diffraction patterns arranged to diffract at least a portion of the light provided from the display panel.Type: GrantFiled: September 25, 2023Date of Patent: December 31, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Chung Sock Choi, Sunmi Kang, Cheol Jang, Sunyoung Jung, Hyunho Kim, Sanghwan Cho
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Publication number: 20240381701Abstract: A display device includes light emitting devices each including a first electrode, a second electrode, and an intermediate layer disposed between the first electrode and the second electrode and including a light emitting layer, a pixel definition layer provided with light emitting openings, each of the plurality of light emitting openings to overlap the light emitting layer of a corresponding one of the plurality of the light emitting devices, a separator disposed on the pixel definition layer and provided with division openings to respectively overlap the light emitting openings, and a spacer disposed on the pixel definition layer. The second electrode of each of the light emitting devices may be electrically separated from each other by the separator, and the spacer may overlap a portion of the separator in a plan view.Type: ApplicationFiled: April 3, 2024Publication date: November 14, 2024Applicant: Samsung Display Co., Ltd.Inventors: JUCHAN PARK, SUNHO KIM, YOOMIN KO, Hyewon KIM, Yerim SON, CHUNG SOCK CHOI
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Publication number: 20240373680Abstract: A display device includes: a base layer; a light emitting element on the base layer, and including a first electrode, an intermediate layer on the first electrode, and a second electrode on the intermediate layer; a pixel definition film on the first electrode, and having a light emitting opening exposing a portion of the first electrode; a separator on the pixel definition film, and disconnecting the second electrode; and an encapsulation layer on the pixel definition film, and including: a first encapsulation layer including a first sub-layer covering the separator, a second sub-layer on the first sub-layer, and a third sub-layer on the second sub-layer; a second encapsulation layer on the first encapsulation layer, and including an organic material; and a third encapsulation layer on the second encapsulation layer, and including an inorganic material. At least one of the first sub-layer or the second sub-layer includes an organic material.Type: ApplicationFiled: March 18, 2024Publication date: November 7, 2024Inventors: SUNHO KIM, YOOMIN KO, Hyewon KIM, JUCHAN PARK, PILSUK LEE, CHUNG SOCK CHOI, SUNGJIN HONG
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Publication number: 20240357860Abstract: A display panel includes: a base substrate; a thin film transistor layer on the base substrate and including: a lower metal layer configured to receive a low potential voltage; a pixel circuit including at least one transistor; and a sensor circuit electrically connected to the lower metal layer; and an element layer on the thin film transistor layer having a light emitting element including: a first pixel electrode electrically connected to the pixel circuit; a second pixel electrode configured to receive the low potential voltage; and a light receiving element electrically connected to the sensor circuit and configured to receive the low potential voltage from the lower metal layer.Type: ApplicationFiled: January 18, 2024Publication date: October 24, 2024Inventors: Byung Han YOO, Chung Sock CHOI, Jung Woo PARK, Gun Hee KIM, Dae Young LEE
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Patent number: 12125443Abstract: A display panel includes a first display area and a second display area. A plurality of base pixel parts are disposed in the second display area, and each base pixel part includes “k” first color light emitting elements. A controller receives image signals, and the image signals include first image signals corresponding to the first display area and second image signals corresponding to the second display area. The second image signals are divided into a plurality of base signal parts respectively corresponding to the plurality of base pixel parts, and each base signal part includes “m*n” first color image signals. The controller generates color image data by rendering “p” color image signals of “m*n” color image signals included in a corresponding base signal part and “(m*n)?p” referenced image signals included in a referenced signal part adjacent to the corresponding base signal part.Type: GrantFiled: November 7, 2022Date of Patent: October 22, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sungjin Hong, Chung Sock Choi, Hyewon Kim, Yoomin Ko, Sunho Kim, Juchan Park, Pilsuk Lee
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Patent number: 12117613Abstract: 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: GrantFiled: June 15, 2020Date of Patent: October 15, 2024Assignee: 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
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Publication number: 20240324358Abstract: A display panel is provided. The display panel includes a light emitting portion including an anode, a cathode, and an organic layer disposed between the anode and the cathode and that emits light. The display panel further includes a pixel driver electrically connected to the light emitting portion, and including a first transistor, a connection wire disposed on a layer different than the first transistor, and electrically connecting the light emitting portion and the pixel driver, and a conductive pattern disposed between the first transistor and the light emitting portion. The conductive pattern overlaps at least a portion of the anode and at least a portion of a gate of the first transistor in a plan view.Type: ApplicationFiled: March 15, 2024Publication date: September 26, 2024Applicant: Samsung Display Co., Ltd.Inventors: PILSUK LEE, YOOMIN KO, SUNHO KIM, Hyewon KIM, JUCHAN PARK, CHUNG SOCK CHOI, SUNGJIN HONG
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Publication number: 20240324354Abstract: A display panel is disclosed that includes a light-emitting element including a first electrode, a second electrode, and an intermediate layer, a transistor electrically connected to the light-emitting element, a connection line including a driving connection part connected to the transistor and an emission connection part connected to the second electrode, a first organic layer arranged between the transistor and the connection line, a second organic layer arranged on the first organic layer and between the transistor and the light-emitting element, and a pixel defining layer arranged between the first electrode and the second electrode and having defined therein a first opening overlapping at least a portion of the first electrode and a second opening spaced apart from the first opening, wherein the second electrode includes one end connected to the emission connection part and another end spaced apart from the one end in a cross-sectional view.Type: ApplicationFiled: March 6, 2024Publication date: September 26, 2024Inventors: JUCHAN PARK, SUNHO KIM, CHUNG SOCK CHOI, JONGHEE PARK
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Patent number: 12080230Abstract: A display panel including a transistor, a light-emitting element including a first electrode, a light emitting layer disposed on the first electrode, and a second electrode disposed on the light emitting layer, the second electrode being electrically connected to the transistor, an insulating layer disposed between the transistor and the light-emitting element, and connection wiring.Type: GrantFiled: October 23, 2023Date of Patent: September 3, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Juchan Park, Yoomin Ko, Sunho Kim, Hyewon Kim, Pilsuk Lee, Chung Sock Choi, Sungjin Hong