Patents by Inventor Wonrae Kim
Wonrae Kim 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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Patent number: 12628500Abstract: An organic light emitting display panel and an organic light emitting display device including the panel are discussed. The organic light emitting display device can include a planarization layer disposed on a substrate, a first electrode disposed on a portion of an upper surface of the planarization layer, a protective pattern surrounding a portion of an upper surface and a side surface of the first electrode, a bank disposed to expose the portion of the upper surface of the first electrode and to be in contact with the portion of the upper surface of the planarization layer while surrounding the protective pattern, a light emitting layer disposed on the bank and disposed on the upper surface of the first electrode that does not overlap the bank, and a second electrode disposed on the light emitting layer. The display device is capable of preventing the first electrode from being contaminated by foreign substances.Type: GrantFiled: November 16, 2022Date of Patent: May 12, 2026Assignee: LG DISPLAY CO., LTD.Inventors: Wonrae Kim, SeongHan Hwang, JuHyuk Kim
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Publication number: 20260123189Abstract: A display device according to one or more examples includes a substrate, a display area including a plurality of sub-pixels, a non-display area outside the display area, a first electrode disposed in each of the plurality of sub-pixels on the substrate in the display area, and a bank disposed on the first electrode of the display area and located at a boundary between adjacent sub-pixels and overlapping a periphery of an upper surface of the first electrode, in which the bank includes a plurality of black-based particles having different diameters.Type: ApplicationFiled: October 24, 2025Publication date: April 30, 2026Applicant: LG Display Co., Ltd.Inventors: Wonrae KIM, Sunwoo KIM, Kyungkook JANG, Seonghan HWANG, Byunggwan HYUN
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Publication number: 20260090253Abstract: A display device according to one embodiment includes a substrate including a display area including a plurality of sub-pixels, and a non-display area surrounding the display area. A first electrode is disposed in each of the sub-pixels on the substrate, and a bank is disposed on the first electrode at boundaries between adjacent sub-pixels, overlapping the periphery of the first electrode's upper surface. An organic layer is on the first electrode and the bank, followed by a second electrode on the organic layer. A color filter is on the second electrode, and an optical member is on the color filter. The bank includes a black-based material to reduce external light reflection. The optical member includes a destructive interference layer and nano-patterns spaced apart from one another on the destructive interference layer to minimize reflectance and improve light management.Type: ApplicationFiled: July 23, 2025Publication date: March 26, 2026Applicant: LG Display Co., Ltd.Inventors: Byunggwan HYUN, Wonrae KIM, Jiyoon CHOI
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Patent number: 12575257Abstract: A transparent display apparatus is provided, which may improve visibility of an image with respect to external light. The transparent display apparatus comprises a substrate including a plurality of pixels, each of which has a light emission area and a transmissive area, and a reproducing plate disposed in parallel with the substrate, wherein the reproducing plate includes a plurality of reproducing portions at least partially overlapped with the transmissive area.Type: GrantFiled: November 9, 2022Date of Patent: March 10, 2026Assignee: LG Display Co., Ltd.Inventors: Wonrae Kim, Jungmin Yoon, SeungBum Lee, Seungcheol You
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Publication number: 20260068382Abstract: A display device can include a substrate defining an active area and a non-active area extending from the active area. A plurality of sub pixels can be disposed in the active area. The display device can further include a planarization layer disposed on the substrate, and a light emitting diode disposed on the planarization layer in each of the plurality of sub pixels. The light emitting diode includes a first electrode, an emission layer, and a second electrode which can be sequentially laminated. The planarization layer can include a base portion and a protrusion portion protruding from the base portion. The first electrode can be disposed on the base portion to enclose a side surface of the protrusion portion. The display device can have improved light extraction efficiency.Type: ApplicationFiled: July 23, 2025Publication date: March 5, 2026Applicant: LG Display Co., Ltd.Inventors: Wonrae KIM, ByungGwan HYUN, Jiyoon CHOI
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Publication number: 20260047278Abstract: Discussed is a display device including a substrate having a display area including a plurality of sub-pixels including, and a non-display area around the display area, an anode electrode disposed in each of the plurality of sub-pixels on the substrate in the display area, a bank disposed on the anode electrode in the display area, located at a boundary between adjacent sub-pixels, and overlapping a periphery of an upper surface of the anode electrode, an organic layer disposed on the anode electrode and the bank in the display area and disposed across the plurality of sub-pixels, and a dam on the substrate in the non-display area, in which the dam includes a same material as the bank, and a surface unevenness is formed on an upper surface of the bank in the display area.Type: ApplicationFiled: July 2, 2025Publication date: February 12, 2026Applicant: LG Display Co., Ltd.Inventors: Wonrae KIM, Seungbum LEE, Sunwoo KIM, Jiyoon CHOI
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Publication number: 20260040802Abstract: A display device according to one or more examples includes a substrate, a display area including a plurality of sub-pixels, a non-display area outside the display area, an anode electrode disposed in each of the sub-pixels on the substrate, a bank disposed on the anode electrode, located at a boundary between adjacent sub-pixels, and overlapping a periphery of an upper surface of the anode electrode, and an optical pattern disposed between the periphery of the upper surface of the anode electrode and the bank, wherein the bank includes a black-based material.Type: ApplicationFiled: June 6, 2025Publication date: February 5, 2026Applicant: LG Display Co., Ltd.Inventors: Seonghan HWANG, Seungbum LEE, Younghoon KIM, Wonrae KIM, Kyungkook JANG, Jiyoon CHOI
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Patent number: 12493013Abstract: According to an aspect of the present disclosure, a DNA analysis device includes a substrate; a photosensitive organic layer configured to be disposed on the substrate, and expanded or contracted by reacting to light; a pair of sensing electrodes disposed on the photosensitive organic layer, and spaced apart from each other with a nano gap; and a light irradiation unit configured to irradiate the light to the photosensitive organic layer, and when the photosensitive organic layer is deformed, the nano gap between the pair of sensing electrodes is varied. Accordingly, the nano gap is simply and precisely adjusted by using the photosensitive organic layer which reacts to light to enhance DNA analysis accuracy.Type: GrantFiled: June 21, 2023Date of Patent: December 9, 2025Assignee: LG Display Co., Ltd.Inventors: Wonrae Kim, MuSun Kwak, KyeongJin Kim
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Patent number: 12475734Abstract: A display apparatus according to an embodiment of the present disclosure includes: a panel which includes a light emitting area and at least one non-light emitting area; a light emitting device which is disposed in the light emitting area and includes a first electrode, a light emitting stack, and a second electrode; a light converter which partitions an opening of the light emitting area and includes a light conversion material; and a capping layer disposed on the second electrode. The light converter includes a light conversion layer and a light amplifier.Type: GrantFiled: May 21, 2021Date of Patent: November 18, 2025Assignee: LG Display Co., Ltd.Inventors: Wonrae Kim, Seungbum Lee, Younghoon Kim, Yoonsik Yang, Seungcheol You
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Patent number: 12439801Abstract: Embodiments of the present disclosure relate to a display device and a server. More specifically, there can be provided a display device which includes a light receiving transistor and a light receiving layer positioned in an active region, and provides an optical signal receiver in the active region, so that there is no need to secure a separate space for the optical signal receiver and high-speed optical communication is possible.Type: GrantFiled: August 2, 2022Date of Patent: October 7, 2025Assignee: LG DISPLAY CO., LTD.Inventors: Wonrae Kim, Yongchan Park, Seungcheol You, Dabin Kim
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Publication number: 20250221169Abstract: A display apparatus includes a substrate including a display area in which a plurality of pixels is defined and a non-display area which does not overlap the display area; a plurality of light emitting elements each including a first electrode, an emission layer, and a second electrode which are sequentially laminated on the substrate in the display area; and a bank disposed on the substrate and covering an edge of the first electrode, wherein at least a part of the bank includes a first bank layer being in contact with the edge of the first electrode and including an inner portion in a direction toward the first electrode with respect to a vertical line passing through a maximum height portion and an outer portion opposite to the inner portion; a second bank layer being in contact with the outer portion of the first bank layer; and a third bank layer disposed on the second bank layer, wherein the second bank layer is enclosed by at least one of the first bank layer and the third bank layer.Type: ApplicationFiled: June 6, 2024Publication date: July 3, 2025Applicant: LG DISPLAY CO., LTD.Inventors: Wonrae KIM, ByungGwan HYUN
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Publication number: 20250207028Abstract: A display device includes a glass substrate having a red sub-pixel area, a green sub-pixel area and a blue sub-pixel area, a thin-film transistor disposed on each of the red sub-pixel area, the green sub-pixel area and the blue sub-pixel area and including an oxide semiconductor, a planarization layer disposed on the thin-film transistor, an anode electrode disposed on the planarization layer and on each of the red sub-pixel area, the green sub-pixel area and the blue sub-pixel area, a bank disposed on the planarization layer to cover an edge of the anode electrode, a cathode electrode disposed on the anode electrode, an organic light-emitting layer disposed between the anode electrode and the cathode electrode and commonly extend across the red sub-pixel area, the green sub-pixel area and the blue sub-pixel area, an encapsulation layer including an inorganic layer and an organic layer, and a color filter layer.Type: ApplicationFiled: March 11, 2025Publication date: June 26, 2025Applicant: LG Display Co., Ltd.Inventors: Kyungkook JANG, Seungryong LEE, Wonrae KIM, Seungcheol YOU, Dabin KIM
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Patent number: 12302732Abstract: Discussed is a color filter structure for converting a wavelength of light emitted from a light-emissive element. The color filter structure includes a light-conversion layer containing a first resin and quantum dots dispersed in the first resin, wherein each quantum dot has a core/shell structure. The color filter structure further includes a light-absorbing layer stacked on the light-conversion layer, wherein the light-absorbing layer contains a second resin and semiconductor nano-particles dispersed in the second resin. The semiconductor nano-particles absorb light emitted from the light-emissive element. Accordingly, the color filter structure improves color purity and luminance of the emitted light.Type: GrantFiled: November 3, 2021Date of Patent: May 13, 2025Assignee: LG DISPLAY CO., LTD.Inventors: Kyungkook Jang, Seungryong Lee, Wonrae Kim, Seungcheol You, Dabin Kim
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Patent number: 12249617Abstract: A display apparatus includes a display panel on which a plurality of pixels are displayed, a plurality of signal lines to which a signal required to drive the display panel is supplied, and an electrostatic discharge circuit connected between each of the plurality of signal lines and the electrostatic discharge line, and the electrostatic discharge circuit includes first and second current paths between the signal line and the electrostatic discharge line, a first electrostatic discharge circuit connected to the first current path, including a plurality of first thin film transistors having a first gate electrode connected to the second current path and a second gate electrode connected to the first current path, and a second electrostatic discharge circuit connected to the second current path, including at least one second thin film transistor having a first gate electrode connected to the first current path and a second gate electrode connected to the first current path.Type: GrantFiled: November 17, 2021Date of Patent: March 11, 2025Assignee: LG Display Co., Ltd.Inventors: Seungcheol You, Wonrae Kim, SeungBum Lee
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Patent number: 12094919Abstract: A display device includes a substrate on which a plurality of sub-pixels are disposed, a first reflective layer disposed on the substrate, a plurality of LEDs disposed in each of the plurality of sub-pixels on the first reflective layer, a plurality of light conversion layers disposed between the first reflective layer and the plurality of LEDs, and a plurality of second reflective layers covering at least a portion of the plurality of LEDs. Light emitted from the plurality of LEDs is reflected by the plurality of second reflective layers, and light having a wavelength longer than that of the light emitted from the plurality of LEDs is emitted upwardly from the plurality of LEDs.Type: GrantFiled: November 23, 2021Date of Patent: September 17, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Wonrae Kim, SeungBum Lee, YoungHoon Kim, Yoonsik Yang
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Publication number: 20240260420Abstract: A display apparatus can include a plurality of subpixels disposed on a substrate; a pattern portion disposed on the substrate, the pattern portion forming a concave area between at least two subpixels among the plurality of subpixels; and a reflective pattern partially overlapping with a portion of the pattern portion. Also, the plurality of subpixels include a light emission area and a non-light emission area adjacent to the light emission area, the reflective pattern being disposed in the non-light emission area, and the non-light emission area includes a first void located between the light emission area and the reflective pattern.Type: ApplicationFiled: November 22, 2023Publication date: August 1, 2024Applicant: LG Display Co., Ltd.Inventors: Inae CHOI, SeHong PARK, Wonrae KIM, Sejong SEONG, SeoHyun NAM
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Publication number: 20240251644Abstract: A display apparatus is provided, which may improve light extraction efficiency of light emitted from a light emitting element layer. The display apparatus comprises a substrate having a plurality of pixels having a plurality of subpixels, a pattern portion disposed on the substrate and formed to be concave between the plurality of subpixels, and a reflective portion on the pattern portion, wherein the plurality of subpixels include an overcoat layer having a first layer on the substrate and a light extraction portion adjacent to the reflective portion, having a plurality of concave portions formed on the first layer, an optimal radius RBEST of the concave portion satisfies RBEST=0.15 sin 4?(AR+0.05)+1.5noc+0.5m?0.59, wherein ‘?’ is a circumferential rate, AR is an aspect ratio of the concave portion, ‘noc’ is a refractive index of the first layer, and ‘m’ is a variable value according to a process of forming the plurality of concave portions.Type: ApplicationFiled: November 15, 2023Publication date: July 25, 2024Inventors: SeHong PARK, Wonrae KIM, Inae CHOI, Sejong SEONG, SeoHyun NAM
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Publication number: 20240251623Abstract: Discussed is a display apparatus including at least one pixel on a substrate and having a plurality of subpixels, a pattern portion disposed on the substrate and formed to be concave between the plurality of subpixels, and a reflective portion on the pattern portion. The plurality of subpixels include a first layer having a plurality of concave portions adjacent to the reflective portion and an organic light emitting layer having a lower organic layer on the first layer and a light emitting layer on the lower organic layer, and light efficiency of light emitted from the light emitting layer and output to the substrate through a concave portion of the plurality of concave portions is proportional to a thickness change value of the lower organic layer.Type: ApplicationFiled: November 28, 2023Publication date: July 25, 2024Applicant: LG Display Co., Ltd.Inventors: SeoHyun NAM, SeHong PARK, Wonrae KIM, Inae CHOI, Sejong SEONG
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Publication number: 20240224759Abstract: Discussed in an organic light emitting display apparatus, which can include a plurality of pixels on a substrate, each pixel including a plurality of subpixels, and each of the plurality of subpixels having an emission region, a planarization layer including a light extraction pattern, the light extraction pattern disposed at the emission region of each of the plurality of subpixels and including a plurality of concave portions; and a light emitting device layer on the light extraction pattern of each of the plurality of subpixels. The emission region of each of the plurality of subpixels includes a reference point disposed at a concave portion of the plurality of concave portions. The light extraction pattern of each of the plurality of subpixels has a rotation angle with respect to the reference point.Type: ApplicationFiled: December 19, 2023Publication date: July 4, 2024Applicant: LG Display Co., Ltd.Inventors: SeHong PARK, Wonrae KIM, WonSik LEE, Inae CHOI, Sejong SEONG
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Publication number: 20240224753Abstract: A display apparatus is provided, which may improve light extraction efficiency of light emitted from a light emitting element layer. The display apparatus comprises a substrate having a plurality of pixels, each of the plurality of pixels having a plurality of subpixels, a pattern portion disposed on the substrate, a reflective portion on the pattern portion, and a plurality of lines provided below the pattern portion, for driving the plurality of subpixels, wherein the plurality of subpixels include a light emission area and a non-light emission area adjacent to the light emission area, the non-light emission area includes a first area adjacent to the light emission area and a second area adjacent to the first area, and the first area is between the second area and the light emission area, and at least one of the plurality of lines is disposed to at least partially overlap the second area.Type: ApplicationFiled: September 19, 2023Publication date: July 4, 2024Inventors: Sejong SEONG, SeHong PARK, Wonrae KIM, Hyemin PARK, SeoHyun NAM