Patents by Inventor Sung Eun BAEK
Sung Eun BAEK 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: 12660685Abstract: A display device includes a circuit board including a first circuit portion, a second circuit portion, and a third circuit portion, a first display panel on the first circuit portion, and configured to emit a first light, a second display panel on the second circuit portion, and configured to emit a second light, a third display panel on the third circuit portion, and configured to emit a third light, and an optical combiner configured to combine the first light, the second light, and the third light to output a light.Type: GrantFiled: May 3, 2022Date of Patent: June 16, 2026Assignee: Samsung Display Co., Ltd.Inventors: Sung Eun Baek, Jin Woo Choi, Joo Woan Cho, Sung Kook Park
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Patent number: 12628484Abstract: A display device includes light-emitting elements arranged on a circuit substrate, extending in a thickness direction of the circuit substrate, and including a first light-emitting element configured to emit a first light, and a second light-emitting element configured to emit a second light, and having a width that is less than a width of the first light-emitting element, a common electrode layer above the light-emitting elements, and a connection electrode layer between the first light-emitting element and the common electrode layer.Type: GrantFiled: May 23, 2022Date of Patent: May 12, 2026Assignee: Samsung Display Co., Ltd.Inventors: Jin Woo Choi, Sung Kook Park, Sung Eun Baek, Dae Ho Song
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Patent number: 12599046Abstract: An apparatus for fabricating a display panel includes: a fixing frame for fixing an outer circumference of a transfer film on which a plurality of light-emitting elements is arranged; an optical inspection member including a light source for irradiating light toward the transfer film and a light-receiving sensor in an optical path of the light source; and an elongation processing member for elongating a width of the transfer film toward an outer circumference thereof and for controlling a degree of elongation based on detection results by the optical inspection member. The light-emitting elements include first light-emitting elements and second light-emitting elements, and the second light-emitting elements include alignment keys on one side.Type: GrantFiled: August 3, 2023Date of Patent: April 7, 2026Assignee: Samsung Display Co., Ltd.Inventors: Sung Kook Park, Sang Hyun Lee, Sung Eun Baek, Tae Hee Lee
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Patent number: 12575245Abstract: A display device includes pixels that are arranged in a display area in a first direction and a second direction and that include first electrodes separated from each other and light emitting elements electrically connected to the first electrodes; second electrodes that are arranged separately from each other in the first direction and are electrically connected to the light emitting elements of the pixels arranged in the second direction; a first pad part including a first pad electrically connected to the first electrodes; and a second pad part including second pads electrically connected to different second electrodes among the second electrodes.Type: GrantFiled: June 1, 2022Date of Patent: March 10, 2026Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sung Eun Baek, Sung Kook Park, Ki Seong Seo, Hyung Il Jeon, Jin Woo Choi
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Patent number: 12575227Abstract: A display device includes a substrate, a partition wall on the substrate, a pixel electrode located at each of a plurality of light emitting areas partitioned by the partition wall on the substrate, a light emitting element on the pixel electrode in each of the plurality of light emitting areas and extending in a thickness direction of the substrate, a common electrode on the light emitting element and the partition wall, and a common connection electrode located between the substrate and the partition wall. The common electrode may be in contact with an upper surface of the common connection electrode that is not covered by the partition wall.Type: GrantFiled: March 17, 2022Date of Patent: March 10, 2026Assignee: Samsung Display Co., Ltd.Inventors: Jin Woo Choi, Min Woo Kim, Sung Kook Park, Jin Taek Park, Sung Eun Baek, Dae Ho Song, Hyung Il Jeon
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Patent number: 12564095Abstract: A display device and method for fabrication thereof are provided. The display device includes a first substrate, pixel electrodes on the first substrate, light emitting elements respectively on the pixel electrodes, and including first semiconductor layers, second semiconductor layers, active layers respectively between the first semiconductor layers and the second semiconductor layers, a first light emitting element including a first active layer of the active layers, a second light emitting element including a second active layer of the active layers that is different from the first active layer, a third light emitting element including a third active layer of the active layers that is different from the first and second active layers, and a fourth light emitting element including a fourth active layer of the active layers that is different from the first to third active layers, and a common electrode layer on the light emitting elements.Type: GrantFiled: May 16, 2022Date of Patent: February 24, 2026Assignee: Samsung Display Co., Ltd.Inventors: Jin Woo Choi, Min Woo Kim, Sung Kook Park, Sung Eun Baek, Hae Yun Choi
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Patent number: 12529896Abstract: A display device for providing includes a display part outputting display light for displaying an image, an optical part forming a path of the display light so that the image is displayed on a transparent lens, and sensing a change in the amount of light according to a user's touch on the path of the display light outputting light amount detection signals, and a controller analyzing changes in the magnitude of the light amount detection signals to sense the user's touch, and activating a user interface function based on sensing results.Type: GrantFiled: July 25, 2022Date of Patent: January 20, 2026Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sung Kook Park, Young Seok Seo, Sung Eun Baek, Tae Hee Lee, Jin Woo Choi
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Patent number: 12444725Abstract: A display device includes first pixel circuit unit, second pixel circuit unit, third pixel circuit unit, and fourth pixel circuit unit spaced from one another, first pixel electrode on the first pixel circuit unit, second pixel electrode on the second pixel circuit unit, third pixel electrode on the third pixel circuit unit, fourth pixel electrode on the fourth pixel circuit unit, first light-emitting element electrically connected to the first pixel electrode, the first light-emitting element configured to emit first light, second light-emitting element electrically connected to the second pixel electrode, the second light-emitting element configured to emit second light, and third light-emitting element electrically connected to the third pixel electrode, the third light-emitting element configured to emit third light. A length of the first light-emitting element in a first direction is greater than each of a length of the second and third light-emitting elements in the first direction.Type: GrantFiled: May 27, 2022Date of Patent: October 14, 2025Assignee: Samsung Display Co., Ltd.Inventors: Jin Woo Choi, Sung Kook Park, Sung Eun Baek, Byeong Hwa Choi
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Patent number: 12433070Abstract: A display device includes pixel electrodes disposed on a substrate, at least one light-emitting element disposed on each of the pixel electrodes, a planarization layer disposed on the pixel electrodes and filling a space between the at least one light-emitting element, and a common electrode disposed on the planarization layer and the at least one light-emitting element. Each of the light-emitting elements is arranged perpendicular to a top face of each of the pixel electrodes, at least one of the pixel electrodes includes a protrusion protruding toward an adjacent one of the pixel electrodes, and the protrusion overlaps the light-emitting element in a plan view.Type: GrantFiled: April 12, 2022Date of Patent: September 30, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jin Woo Choi, Min Woo Kim, Sung Kook Park, Sung Eun Baek, So Yeon Yoon
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Patent number: 12433122Abstract: A display device includes anode electrodes spaced apart from each other on a substrate, light emitting elements on the anode electrodes, mask layers on some of the light emitting elements, an insulating layer on the substrate and the anode electrodes and surrounding the light emitting elements, and a cathode electrode on the insulating layer and contacting some of the light emitting elements and the mask layers, the light emitting elements include first light emitting elements on a first anode electrode and emitting light of a first color, and second light emitting elements on the first anode electrode and emitting light of a second color, and third light emitting elements on the first anode electrode and emitting light of a third color, and the mask layer includes a first mask layer on the second light emitting elements, and a second mask layer on the third light emitting elements.Type: GrantFiled: July 1, 2022Date of Patent: September 30, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jin Woo Choi, Sung Kook Park, Sung Eun Baek, Ki Seong Seo, So Yeon Yoon, Hyung Il Jeon
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Patent number: 12426427Abstract: A display device includes a first substrate, a plurality of light-emitting elements on the first substrate and spaced from each other, wherein each of the plurality of light-emitting elements extends in a thickness direction of the first substrate, a common electrode on the first substrate and the plurality of light-emitting elements, a first insulating layer on the common electrode and the plurality of light-emitting elements, and a first reflective layer on side surfaces of the plurality of light-emitting elements with the first insulating layer therebetween, wherein the common electrode is in contact with a portion of the side surface of each of the plurality of light-emitting elements.Type: GrantFiled: February 11, 2022Date of Patent: September 23, 2025Assignee: Samsung Display Co., Ltd.Inventors: Jin Woo Choi, Min Woo Kim, Sung Kook Park, Jin Taek Park, Sung Eun Baek, Dae Ho Song, Hyung Il Jeon
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Patent number: 12418002Abstract: A display device includes a substrate, a pixel electrode disposed on the substrate, a bank covering an edge of the pixel electrode and defining a light-emitting area, a first organic layer disposed on the bank and non-overlapping the light-emitting area, a plurality of light-emitting elements arranged on the pixel electrode, where each of the plurality of light-emitting elements extends perpendicular to the pixel electrode, a planarization layer disposed on the pixel electrode, the bank and the first organic layer, where the planarization layer is filled between the plurality of light-emitting elements, and a common electrode disposed on the planarization layer and the plurality of light-emitting elements, where the first organic layer is disposed between the bank and the planarization layer, and overlaps the bank.Type: GrantFiled: January 6, 2022Date of Patent: September 16, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ki Seong Seo, Jin Woo Choi, Sung Eun Baek
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Patent number: 12402446Abstract: A display device includes a substrate, a first electrode disposed on the substrate, a bonding electrode disposed on the first electrode and electrically connected to the first electrode, a light emitting element disposed on the bonding electrode and including a first end contacting with the bonding electrode, and a second end disposed opposite to the first end in a longitudinal direction, a first insulating layer covering a side surface of the light emitting element and not covering the second end of the light emitting element such that the second end of the light emitting element is exposed, a second electrode covering the first insulating layer and the second end of the light emitting element, a first bank disposed on a portion of the second electrode, and a second bank disposed on the first bank, and the first bank and the second bank include metal.Type: GrantFiled: June 27, 2022Date of Patent: August 26, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyung Il Jeon, Min Woo Kim, Sung Kook Park, Sung Eun Baek, Ki Seong Seo, Jin Woo Choi
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Patent number: 12394763Abstract: A display device includes light-emitting elements arranged on a circuit board, and extending in a thickness direction of the circuit board, wherein the light-emitting elements include a first light-emitting element configured to emit a first light, and a second light-emitting element configured to emit a second light, wherein the first light-emitting element and the second light-emitting element are on different layers, and wherein a width of the first light-emitting element is greater than a width of the second light-emitting element.Type: GrantFiled: July 26, 2022Date of Patent: August 19, 2025Assignee: Samsung Display Co., Ltd.Inventors: Jin Woo Choi, Min Woo Kim, Sung Kook Park, Sung Eun Baek
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Patent number: 12334485Abstract: A display device includes a substrate, a first light-emitting element, a second light-emitting element, and a third light-emitting element on the substrate, each of the first, second, and third light-emitting elements includes a first semiconductor layer, an active layer, a second semiconductor layer, and a third semiconductor layer, an opening formed in the second semiconductor layer and the third semiconductor layer of the third light-emitting element, and a wavelength conversion member located at the opening, wherein the first light-emitting element and the third light-emitting element are configured to emit first light, and the second light-emitting element is configured to emit second light, and the wavelength conversion member is configured to convert the first light from the third light-emitting element into third light.Type: GrantFiled: May 27, 2022Date of Patent: June 17, 2025Assignee: Samsung Display Co., Ltd.Inventors: Jin Woo Choi, Min Woo Kim, Sung Kook Park, Sung Eun Baek
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Patent number: 12256584Abstract: A display device includes a pixel, the pixel includes at least one light emitting element including a first end and a second end; a first electrode overlapping the at least one light emitting element and electrically connected to the first end of the at least one light emitting element; and a second electrode overlapping the at least one light emitting element and the first electrode and electrically connected to the second end of the at least one light emitting element, and the first electrode includes area electrodes divided according to a number and a position of area electrodes overlapping the at least one light emitting element.Type: GrantFiled: December 9, 2021Date of Patent: March 18, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hae Yun Choi, Sung Kook Park, Sung Eun Baek, Jin Woo Choi
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Publication number: 20250072171Abstract: A display device includes a pixel electrode disposed on a substrate and including a reflective electrode layer and an upper electrode layer, a contact electrode disposed on the pixel electrode, light-emitting elements disposed on the contact electrode and disposed perpendicular to the pixel electrode, a planarization layer disposed on the pixel electrode, the planarization layer filling a space between the light-emitting elements, and a common electrode disposed on the planarization layer and the light-emitting elements, and a size of the contact electrode is equal to a size of each of the light-emitting elements in a plan view, and the upper electrode layer is disposed on the reflective electrode layer and is in a polycrystalline phase.Type: ApplicationFiled: November 15, 2024Publication date: February 27, 2025Applicant: Samsung Display Co., Ltd.Inventors: Jin Woo CHOI, Sung Kook PARK, Sung Eun BAEK, Byung Choon YANG, So Yeon YOON
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Patent number: 12191340Abstract: A display device includes: a plurality of light emitting elements on a first substrate; a second substrate facing the first substrate; a partition wall on one surface of the second substrate facing the first substrate, and including a plurality of openings; a plurality of color filters in the plurality of openings; wavelength conversion layers on the plurality of color filters, respectively, and to convert wavelengths of light emitted from the plurality of light emitting elements; and an adhesive layer adhering the first substrate and the second substrate to each other. The partition wall includes a silicon single crystal.Type: GrantFiled: December 21, 2021Date of Patent: January 7, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Dae Ho Song, Sung Eun Baek, Ki Seong Seo, Byung Choon Yang, Tae Hee Lee, Byeong Hwa Choi
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Patent number: 12148861Abstract: A display device includes a pixel electrode disposed on a substrate and including a reflective electrode layer and an upper electrode layer, a contact electrode disposed on the pixel electrode, light-emitting elements disposed on the contact electrode and disposed perpendicular to the pixel electrode, a planarization layer disposed on the pixel electrode, the planarization layer filling a space between the light-emitting elements, and a common electrode disposed on the planarization layer and the light-emitting elements, and a size of the contact electrode is equal to a size of each of the light-emitting elements in a plan view, and the upper electrode layer is disposed on the reflective electrode layer and is in a polycrystalline phase.Type: GrantFiled: April 12, 2022Date of Patent: November 19, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jin Woo Choi, Sung Kook Park, Sung Eun Baek, Byung Choon Yang, So Yeon Yoon
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Publication number: 20240194653Abstract: An apparatus for fabricating a display panel includes: a fixing frame for fixing an outer circumference of a transfer film on which a plurality of light-emitting elements is arranged; an optical inspection member including a light source for irradiating light toward the transfer film and a light-receiving sensor in an optical path of the light source; and an elongation processing member for elongating a width of the transfer film toward an outer circumference thereof and for controlling a degree of elongation based on detection results by the optical inspection member. The light-emitting elements include first light-emitting elements and second light-emitting elements, and the second light-emitting elements include alignment keys on one side.Type: ApplicationFiled: August 3, 2023Publication date: June 13, 2024Inventors: Sung Kook PARK, Sang Hyun LEE, Sung Eun BAEK, Tae Hee LEE