Patents by Inventor Heejean PARK
Heejean PARK 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: 20240153460Abstract: A display device includes a display area and a peripheral area disposed adjacent to the display area, a display element arranged in the display area, a first semiconductor layer, a gate conductive layer, a first connection electrode layer, and a second connection electrode layer, sequentially arranged on a substrate, and a bias voltage supply line arranged in the peripheral area. The bias voltage supply line includes a top supply line and a bottom supply line arranged on different layers, and the top supply line and the second connection electrode layer are arranged on a same layer.Type: ApplicationFiled: November 6, 2023Publication date: May 9, 2024Applicant: Samsung Display Co., LTD.Inventors: Junhyun Park, Hyeongseok Kim, Heejean Park, Sunhwa Lee, Mukyung Jeon
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Publication number: 20240118758Abstract: A display device includes: a pixel including a light emitting element; a sensor including a sensing element and a sensor driving circuit; and a sensor driver to output a sensor scan signal to the sensor driving circuit. The sensor driver includes: a switching circuit connected between a first input terminal for receiving a first clock signal of a first operating frequency and a first clock node, and to output a first filtering clock signal of a second operating frequency to the first clock node in response to a first enable signal; and a driving circuit to output the sensor scan signal in response to the first filtering clock signal of the first clock node.Type: ApplicationFiled: August 7, 2023Publication date: April 11, 2024Inventors: HEERIM SONG, TAEGYUN KIM, HEEJEAN PARK, YUJIN LEE, CHEOL-GON LEE, MUKYUNG JEON
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Patent number: 11955078Abstract: A display device includes: a pixel driving circuit configured to drive the light emitting elements of pixels; and sensors including a light sensing element and a sensor driving circuit connected with the light sensing element and configured to output a sensing signal corresponding to a light, the sensor driving circuit including: a reset transistor including a first electrode configured to receive a reset signal, a second electrode connected with a first sensing node, and a third electrode configured to receive a reset control signal; an amplification transistor including a first electrode configured to receive a sensing driving voltage, a second electrode connected with a second sensing node, and a third electrode connected with the first sensing node; and an output transistor including a first electrode connected with the second sensing node, a second electrode connected with a sensing line, and a third electrode configured to receive an output control signal.Type: GrantFiled: August 15, 2022Date of Patent: April 9, 2024Assignee: Samsung Display Co., Ltd.Inventors: Heerim Song, Heejean Park, Yujin Lee, Cheol-Gon Lee, Mukyung Jeon
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Publication number: 20240065031Abstract: A light emitting display device that includes thin film transistors. Material for electrodes of the thin film transistors are chosen to allow for dehydrogenation of the underlying semiconductor pattern while allowing for high frequency driving without delay. Molybdenum is chosen to allow for dehydrogenation, and titanium on aluminum two-layered structure is chosen for low resistance and high-speed driving. The display includes a driving transistor and a switching transistor with a polycrystalline semiconductor layer and a transistor with an oxide semiconductor layer.Type: ApplicationFiled: May 24, 2023Publication date: February 22, 2024Applicant: Samsung Display Co., LTD.Inventors: Hyeong Seok KIM, Min Jae JEONG, Jun Hyun PARK, HEEJEAN PARK
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Publication number: 20240057398Abstract: The present disclosure relates to a display device, and one or more embodiments provides a display device including a substrate, a transistor above the substrate, a pixel electrode connected to the transistor, an extension electrode connected between the transistor and the pixel electrode, an additional capacitor electrode at a same layer as the extension electrode, overlapping the pixel electrode, and to which a constant voltage is applied, a light-emitting layer above the pixel electrode, and a common electrode above the light-emitting layer.Type: ApplicationFiled: June 29, 2023Publication date: February 15, 2024Inventors: Jun Hyun PARK, Hyeong Seok KIM, HEEJEAN PARK, Min Jae JEONG
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Publication number: 20240038148Abstract: A display device includes a substrate, a first active pattern above the substrate, a first gate layer above the first active pattern, and including a first capacitor electrode, a second gate layer above the first gate layer, and including a second capacitor electrode overlapping the first capacitor electrode, a second active pattern above the second gate layer, and including an extension portion above the second capacitor electrode, and a connection electrode above the second active pattern, and connecting the extension portion and the first capacitor electrode.Type: ApplicationFiled: July 18, 2023Publication date: February 1, 2024Inventors: JUNHYUN PARK, HYEONGSEOK KIM, HEEJEAN PARK, MINJAE JEONG, MUKYUNG JEON
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Publication number: 20240023390Abstract: A display panel includes a substrate including a first display area, a first side display area, a second side display area, and a corner display area, the corner display area being arranged between the first side display area and the second side display area and surrounding at least a portion of the first display area, a first wiring extending in a first direction in the first display area, a second wiring extending in a second direction in the first display area, a first corner wiring arranged in the corner display area and connected to the first wiring, a second corner wiring arranged in the corner display area and connected to the second wiring, and a pixel circuit arranged in the corner display area, where the first corner wiring and the second corner wiring extend in a first extension direction in the corner display area.Type: ApplicationFiled: June 15, 2023Publication date: January 18, 2024Inventors: Yujin LEE, Heejean PARK, Mukyung JEON
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Publication number: 20230389391Abstract: A display device in which an active area and a peripheral area adjacent to the active area are defined includes a base layer, a circuit layer disposed on the base layer, and an element layer disposed on the circuit layer and including a light emitting element and a light receiving element. The circuit layer includes a pixel driving circuit connected to the light emitting element, a sensor driving circuit connected to the light receiving element, a plurality of reset voltage wirings disposed in the active area and that provide a reset voltage to the sensor driving circuit, and a reset voltage reinforcement wiring disposed in the peripheral area, connected to the plurality of reset voltage wirings, and extending in a first direction.Type: ApplicationFiled: March 1, 2023Publication date: November 30, 2023Inventors: HEERIM SONG, HEEJEAN PARK, CHEOL-GON LEE, MUKYUNG JEON
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Publication number: 20230368566Abstract: A display device includes a base layer and a pixel layer that is disposed on the base layer and that includes a plurality of reference pixel units and a plurality of sensors. Each of the plurality of reference pixel units includes a first light emitting element, a second light emitting element, and a third light emitting element. Each of the plurality of sensors includes a light sensing element disposed between two second light emitting elements adjacent to each other in a first direction and disposed between the first and third light emitting elements in a second direction intersecting the first direction. The second light emitting element has a different shape from the first and third light emitting elements, and the light sensing element has a different shape from the first and third light emitting elements.Type: ApplicationFiled: February 27, 2023Publication date: November 16, 2023Applicant: Samsung Display Co., Ltd.Inventors: HEERIM SONG, HEEJEAN PARK, YUJIN LEE, CHEOL-GON LEE, MUKYUNG JEON
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Publication number: 20230363239Abstract: A display device includes a light emitting element, a pixel circuit disposed below the light emitting element and electrically connected to the light emitting element, a first light receiving element disposed adjacent to the light emitting element, a sensing circuit disposed below the first light receiving element and electrically connected to the first light receiving element, a second light receiving element spaced apart from the first light receiving element and electrically connected to the sensing circuit and adjacent to the light emitting element, and a dummy circuit pattern disposed below the second light receiving element.Type: ApplicationFiled: March 1, 2023Publication date: November 9, 2023Inventors: Heerim SONG, Heejean PARK, Yujin LEE, Cheol-Gon LEE
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Publication number: 20230345767Abstract: A display device includes: a base layer; a circuit layer on the base layer; and an element layer on the circuit layer and comprising a plurality of light emitting elements and a plurality of light receiving elements, the element layer including: a pixel definition layer having a light emitting opening defined therethrough to correspond to the light emitting elements and a light receiving opening defined therethrough to correspond to the light receiving elements; a disconnected spacer layer adjacent to the light receiving opening on the pixel definition layer; and a common layer commonly in the light emitting elements and the light receiving elements and partially disconnected around the light receiving elements due to the disconnected spacer layer.Type: ApplicationFiled: February 16, 2023Publication date: October 26, 2023Inventors: HEERIM SONG, MUKYUNG JEON, HEEJEAN PARK
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Publication number: 20230326404Abstract: A display device includes: a base layer; a plurality of scan lines configured to sequentially receive scan signals, the plurality of scan lines being on the base layer; a plurality of pixels on the base layer and connected to each of the plurality of scan lines; a plurality of sensing control lines configured to simultaneously receive sensing control signals, the sensing control lines being on the base layer; and a plurality of sensors on the base layer and connected to respective ones of the sensing control lines, wherein the scan line and the sensing control line are on the same layer.Type: ApplicationFiled: January 27, 2023Publication date: October 12, 2023Inventors: HEEJEAN PARK, HEERIM SONG, YUJIN LEE, CHEOL-GON LEE, MUKYUNG JEON
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Publication number: 20230326233Abstract: Disclosed is a display device including a base layer and a pixel layer that is disposed on the base layer and that includes a plurality of pixels and a plurality of sensors. Each of the plurality of pixels includes a light emitting element and a pixel drive circuit connected to the light emitting element to control driving of the light emitting element. Each of the plurality of sensors includes a light sensing unit including a plurality of light sensing elements, a sensor drive circuit that is connected to at least two light sensing elements and that outputs a sensing signal in response to light, and a routing wire that electrically connects the at least two light sensing elements to each other.Type: ApplicationFiled: January 17, 2023Publication date: October 12, 2023Inventors: HEERIM SONG, HEEJEAN PARK, YUJIN LEE, CHEOL-GON LEE, MUKYUNG JEON
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Publication number: 20230320161Abstract: A display device includes a base layer, and a pixel layer including a reference pixel unit and sensor. The reference pixel unit includes first and second light emitting elements emitting a first color light. The sensor includes a light detection element disposed corresponding to the reference pixel unit, and a sensor driving circuit electrically connected to the light detection element. Each of the first and second light emitting elements includes an anode electrode, and a light emitting layer. The light emitting layer of the first light emitting element has the same size as the light emitting layer of the second light emitting element, and the anode electrode of the first light emitting element has a size that is different from that of the anode electrode of the second light emitting element.Type: ApplicationFiled: February 21, 2023Publication date: October 5, 2023Inventors: CHEOL-GON LEE, Heejean PARK, Heerim SONG, Yujin LEE, Mukyung JEON
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Patent number: 11776474Abstract: A pixel includes a driving transistor, a switching transistor, and first and second capacitors. The gate of the driving transistor is disposed below a first insulating layer, and a first conductive pattern defining a first electrode of the first capacitor is disposed below the first insulating layer. A second conductive pattern defining a second electrode of the first capacitor and a first electrode of the second capacitor is disposed on the first insulating layer, a third conductive pattern defining a second electrode of the second capacitor is disposed on a second insulating layer covering the second conductive pattern, and the data line is disposed above the second insulating layer.Type: GrantFiled: March 23, 2022Date of Patent: October 3, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yujin Lee, Heejean Park, Heerim Song, Cheol-Gon Lee, Mukyung Jeon
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Patent number: 11716885Abstract: A display panel includes a substrate including a first display area, a first side display area, a second side display area, and a corner display area, the corner display area being arranged between the first side display area and the second side display area and surrounding at least a portion of the first display area, a first wiring extending in a first direction in the first display area, a second wiring extending in a second direction in the first display area, a first corner wiring arranged in the corner display area and connected to the first wiring, a second corner wiring arranged in the corner display area and connected to the second wiring, and a pixel circuit arranged in the corner display area, where the first corner wiring and the second corner wiring extend in a first extension direction in the corner display area.Type: GrantFiled: June 10, 2021Date of Patent: August 1, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yujin Lee, Heejean Park, Mukyung Jeon
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Patent number: 11706956Abstract: A display device with a reduced area of dead spaces and a low defect occurrence rate includes a substrate including a display area and a peripheral area; and a first insulating layer disposed over the peripheral area and including a first side surface portion, a second side surface portion, and at least one recess portion. The first side surface portion includes a side surface aligned with a side surface of the substrate, and the second side surface portion includes a side surface aligned with the side surface of the substrate and is spaced apart from the first side surface portion. A first pad is disposed on the first insulating layer, extends to an edge of the substrate, fills the at least one recess portion, and includes a front end surface aligned with the side surface of the substrate.Type: GrantFiled: August 31, 2020Date of Patent: July 18, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jinseon Kwak, Gyungsoon Park, Heejean Park
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Publication number: 20230122296Abstract: A display apparatus includes a first sub-pixel including a first pixel electrode; a second sub-pixel including a second pixel electrode; a 1st-1st vertical power line extending in a first direction passing through the first sub-pixel; a 1st-2nd vertical power line extending in the first direction passing through the second sub-pixel; a first horizontal power line, the first horizontal power line, and the 1st-1st vertical power line and the 1st-2nd vertical power line being disposed on different layers, extending in a second direction intersecting the first direction, and electrically connected to the 1st-1st vertical power line and the 1st-2nd vertical power line; and an opposite electrode disposed above the first pixel electrode and the second pixel electrode, being integral as a single body over the first sub-pixel and the second sub-pixel, and electrically connected to the 1st-1st vertical power line and the 1st-2nd vertical power line.Type: ApplicationFiled: May 12, 2022Publication date: April 20, 2023Applicant: Samsung Display Co., Ltd.Inventors: Heerim SONG, Heejean PARK, Yujin LEE, Cheolgon LEE, Mukyung JEON
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Publication number: 20230098891Abstract: A display device includes: a pixel driving circuit configured to drive the light emitting elements of pixels; and sensors including a light sensing element and a sensor driving circuit connected with the light sensing element and configured to output a sensing signal corresponding to a light, the sensor driving circuit including: a reset transistor including a first electrode configured to receive a reset signal, a second electrode connected with a first sensing node, and a third electrode configured to receive a reset control signal; an amplification transistor including a first electrode configured to receive a sensing driving voltage, a second electrode connected with a second sensing node, and a third electrode connected with the first sensing node; and an output transistor including a first electrode connected with the second sensing node, a second electrode connected with a sensing line, and a third electrode configured to receive an output control signal.Type: ApplicationFiled: August 15, 2022Publication date: March 30, 2023Inventors: HEERIM SONG, HEEJEAN PARK, YUJIN LEE, CHEOL-GON LEE, MUKYUNG JEON
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Publication number: 20220366849Abstract: A pixel includes a driving transistor, a switching transistor, and first and second capacitors. The gate of the driving transistor is disposed below a first insulating layer, and a first conductive pattern defining a first electrode of the first capacitor is disposed below the first insulating layer. A second conductive pattern defining a second electrode of the first capacitor and a first electrode of the second capacitor is disposed on the first insulating layer, a third conductive pattern defining a second electrode of the second capacitor is disposed on a second insulating layer covering the second conductive pattern, and the data line is disposed above the second insulating layer.Type: ApplicationFiled: March 23, 2022Publication date: November 17, 2022Inventors: YUJIN LEE, HEEJEAN PARK, HEERIM SONG, CHEOL-GON LEE, MUKYUNG JEON