Patents by Inventor Kyung-Tae Chae
Kyung-Tae Chae 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: 12191423Abstract: A display device includes: a substrate having a display area and a non-display area; and a pixel in each of a pixel area in the display area. Each of the pixels includes: an insulating layer on the substrate and having an opening; first and second electrodes on the insulating layer and spaced apart from each other; a plurality of light emitting elements in the opening; a first contact electrode electrically connecting one end of the light emitting elements and the first electrode to each other; a second contact electrode electrically connecting another end of the light emitting elements and the second electrode to each other; a first insulating pattern on the first contact electrode; and a second insulating pattern on the second contact electrode. The first insulating pattern and the second insulating pattern are on the same layer and spaced apart from each other.Type: GrantFiled: August 18, 2023Date of Patent: January 7, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seung Min Lee, Jin Taek Kim, Baek Hyeon Lim, Jin Yeong Kim, Kyung Tae Chae, Jung Hwan Yi, Hee Keun Lee
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Patent number: 12161027Abstract: A display device including: a substrate; a conductive layer on the substrate and including a first voltage line and a second voltage line extending in a first direction; a first electrode and a second electrode on the conductive layer, extending in the first direction, and spaced apart from each other; a plurality of light-emitting elements on the first electrode and the second electrode; and an electrode pattern on the conductive layer and separated from the first electrode. The electrode pattern overlaps the first voltage line in a thickness direction and directly contacts the first voltage line.Type: GrantFiled: April 21, 2021Date of Patent: December 3, 2024Assignee: Samsung Display Co., Ltd.Inventors: Ki Bum Kim, Kyung Tae Chae, Ki Nyeng Kang, Jin Taek Kim, Hyun Wook Lee
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Patent number: 12155021Abstract: A pixel includes a first insulating film disposed on a substrate, a light emitting element disposed on the first insulating film, a second insulating film disposed on the light emitting element to cover at least a portion of the light emitting element, a first contact electrode and a second contact electrode, each of the first and second contact electrodes including at least a portion disposed on the first insulating film and connected to the light emitting element, and an encapsulation layer including a photosensitive material.Type: GrantFiled: April 5, 2021Date of Patent: November 26, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyun Wook Lee, Ki Nyeng Kang, Ki Bum Kim, Jin Taek Kim, Kyung Tae Chae
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Patent number: 12094855Abstract: A pixel may include a pixel circuit layer including at least one transistor and a first electrode disposed on a substrate, and a first insulating layer disposed on the at least one transistor and the first electrode, and a display element layer disposed on the pixel circuit layer, the display element layer including a second electrode electrically connected to the at least one transistor, and a plurality of light emitting elements electrically connected to each of the first and second electrodes. The first electrode and the second electrode may be disposed on different layers and may be spaced apart from each other. The plurality of light emitting elements may overlap the first and second electrodes in a plan view and a cross-sectional view.Type: GrantFiled: March 24, 2021Date of Patent: September 17, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyun Wook Lee, Ki Nyeng Kang, Jin Taek Kim, Tae Woo Kim, Hee Keun Lee, Kyung Tae Chae
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Patent number: 12002790Abstract: A pixel includes a first electrode and a second electrode facing each other, an insulating layer on the first and second electrodes, a plurality of light-emitting elements located on the insulating layer between the first electrode and the second electrode, a first contact electrode electrically connected to the first electrode, and a second contact electrode electrically connected to the second electrode. Here, a first gap having a constant width in a first direction and a second gap having a width in the first direction that gradually changes along a second direction are located between the first electrode and the second electrode or between the first contact electrode and the second contact electrode.Type: GrantFiled: March 23, 2021Date of Patent: June 4, 2024Assignee: Samsung Display Co., Ltd.Inventors: Hee Keun Lee, Jin Taek Kim, Seung Min Lee, Jung Hwan Yi, Baek Hyeon Lim, Kyung Tae Chae
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Patent number: 11871598Abstract: A display device and a manufacturing method thereof are provided. A display device includes: a substrate; a first electrode and a second electrode on the substrate, the first electrode and the second electrode being arranged on a same layer to be spaced apart from each other; a first insulating layer on the first electrode and the second electrode; and a light emitting element on the first insulating layer. The first insulating layer includes a groove concave toward the substrate, and the light emitting element is in the groove.Type: GrantFiled: May 10, 2021Date of Patent: January 9, 2024Assignee: Samsung Display Co., Ltd.Inventors: Baek Hyeon Lim, Jin Taek Kim, Seung Min Lee, Jung Hwan Yi, Hee Keun Lee, Kyung Tae Chae
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Patent number: 11870025Abstract: A display device includes a first substrate, a wire pad in a pad area, first banks in a display area, electrodes on the first banks, a pad electrode base layer on the wire pad, having a greater width than the wire pad, and covering sides of the wire pad, a first insulating layer covering parts of the electrodes and part of the pad electrode base layer, light-emitting elements on the first insulating layer in the display area, respective ends of the light-emitting elements being on different electrodes, contact electrodes on the electrodes and contacting first ends of the light-emitting elements, and a pad electrode upper layer on the first insulating layer in the pad area and directly contacting the pad electrode base layer, wherein the pad electrode base layer includes the same material as the electrodes, and the pad electrode upper layer includes the same material as the contact electrodes.Type: GrantFiled: June 13, 2022Date of Patent: January 9, 2024Assignee: Samsung Display Co., Ltd.Inventors: Jin Taek Kim, Seung Min Lee, Jung Hwan Yi, Hee Keun Lee, Bek Hyun Lim, Kyung Tae Chae
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Publication number: 20230395755Abstract: A display device includes: a substrate having a display area and a non-display area; and a pixel in each of a pixel area in the display area. Each of the pixels includes: an insulating layer on the substrate and having an opening; first and second electrodes on the insulating layer and spaced apart from each other; a plurality of light emitting elements in the opening; a first contact electrode electrically connecting one end of the light emitting elements and the first electrode to each other; a second contact electrode electrically connecting another end of the light emitting elements and the second electrode to each other; a first insulating pattern on the first contact electrode; and a second insulating pattern on the second contact electrode. The first insulating pattern and the second insulating pattern are on the same layer and spaced apart from each other.Type: ApplicationFiled: August 18, 2023Publication date: December 7, 2023Inventors: Seung Min LEE, Jin Taek KIM, Baek Hyeon LIM, Jin Yeong KIM, Kyung Tae CHAE, Jung Hwan YI, Hee Keun LEE
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Publication number: 20230352639Abstract: A display device includes a substrate including a plurality of pixels, a first electrode and a second electrode disposed on the substrate and spaced apart from each other, an insulating reflective layer disposed on the first electrode and the second electrode, and a plurality of light emitting elements disposed between the first electrode and the second electrode and electrically connected to the first electrode and the second electrode, wherein the insulating reflective layer includes a plurality of first layers and the plurality of second layers having different refractive indexes, and the the plurality of first layers and the the plurality of second layers are alternately stacked with each other.Type: ApplicationFiled: July 8, 2021Publication date: November 2, 2023Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Jung Hwan YI, Jin Taek KIM, Yong Sub SHIM, Seung Min LEE, Hee Keun LEE, Baek Hyeon LIM, Kyung Tae CHAE, Hae Ju YUN, Seung Jin CHU
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Patent number: 11742460Abstract: A display device includes: a substrate having a display area and a non-display area; and a pixel in each of a pixel area in the display area. Each of the pixels includes: an insulating layer on the substrate and having an opening; first and second electrodes on the insulating layer and spaced apart from each other; a plurality of light emitting elements in the opening; a first contact electrode electrically connecting one end of the light emitting elements and the first electrode to each other; a second contact electrode electrically connecting another end of the light emitting elements and the second electrode to each other; a first insulating pattern on the first contact electrode; and a second insulating pattern on the second contact electrode. The first insulating pattern and the second insulating pattern are on the same layer and spaced apart from each other.Type: GrantFiled: November 13, 2020Date of Patent: August 29, 2023Assignee: Samsung Display Co., Ltd.Inventors: Seung Min Lee, Jin Taek Kim, Baek Hyeon Lim, Jin Yeong Kim, Kyung Tae Chae, Jung Hwan Yi, Hee Keun Lee
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Publication number: 20230187584Abstract: Provided is a display device. The display device comprises: a first substrate; a first electrode and a second electrode arranged spaced apart from each other on the first substrate; a plurality of light-emitting diodes arranged on the first electrode and the second electrode; a plurality of contact electrodes arranged on the first electrode or the second electrode and being in contact with the light-emitting diodes, wherein the contact electrodes comprise a first contact electrode arranged on the first electrode, a second contact electrode arranged on the second electrode, a third contact electrode facing the first contact electrode in a second direction, and a fourth contact electrode facing the second contact electrode in the second direction, and include an electrode connection unit connected to the third contact electrode and the fourth contact electrode and arranged to surround the second contact electrode.Type: ApplicationFiled: July 28, 2020Publication date: June 15, 2023Inventors: Jin Taek KIM, Seung Min LEE, Jung Hwan YI, Hee Keun LEE, Bek Hyun LIM, Kyung Tae CHAE
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Publication number: 20220310895Abstract: A display device includes a first substrate, a wire pad in a pad area, first banks in a display area, electrodes on the first banks, a pad electrode base layer on the wire pad, having a greater width than the wire pad, and covering sides of the wire pad, a first insulating layer covering parts of the electrodes and part of the pad electrode base layer, light-emitting elements on the first insulating layer in the display area, respective ends of the light-emitting elements being on different electrodes, contact electrodes on the electrodes and contacting first ends of the light-emitting elements, and a pad electrode upper layer on the first insulating layer in the pad area and directly contacting the pad electrode base layer, wherein the pad electrode base layer includes the same material as the electrodes, and the pad electrode upper layer includes the same material as the contact electrodes.Type: ApplicationFiled: June 13, 2022Publication date: September 29, 2022Inventors: Jin Taek KIM, Seung Min LEE, Jung Hwan YI, Hee Keun LEE, Bek Hyun LIM, Kyung Tae CHAE
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Publication number: 20220199682Abstract: Display device includes a first substrate; an active material layer on the first substrate and including a channel area, a first doped area on one side of the channel area, and a second doped area on another side of the channel area; a gate insulating layer on the active material layer; a first conductive layer on the gate insulating layer and including a gate electrode overlapping the channel area and a signal application electrode; a second conductive layer including a first electrode electrically connected to the first doped area, a second electrode electrically connected to the second doped area, and a third electrode electrically connected to the signal application electrode; a light emitting element; and a third conductive layer on the light emitting element, the third conductive layer including a first contact electrode electrically connected to the second electrode, and a second contact electrode electrically connected to the third electrode.Type: ApplicationFiled: December 16, 2021Publication date: June 23, 2022Inventors: Hyun Wook LEE, Seung Min LEE, Tae Woo KIM, Kyung Tae CHAE, Jung Eun HONG
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Patent number: 11362250Abstract: A display device includes a first substrate, a wire pad in a pad area, first banks in a display area, electrodes on the first banks, a pad electrode base layer on the wire pad, having a greater width than the wire pad, and covering sides of the wire pad, a first insulating layer covering parts of the electrodes and part of the pad electrode base layer, light-emitting elements on the first insulating layer in the display area, respective ends of the light-emitting elements being on different electrodes, contact electrodes on the electrodes and contacting first ends of the light-emitting elements, and a pad electrode upper layer on the first insulating layer in the pad area and directly contacting the pad electrode base layer, wherein the pad electrode base layer includes the same material as the electrodes, and the pad electrode upper layer includes the same material as the contact electrodes.Type: GrantFiled: October 23, 2020Date of Patent: June 14, 2022Assignee: Samsung Display Co., Ltd.Inventors: Jin Taek Kim, Seung Min Lee, Jung Hwan Yi, Hee Keun Lee, Bek Hyun Lim, Kyung Tae Chae
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Publication number: 20220102422Abstract: A display device according to one embodiment of the present disclosure includes: a base layer including a display area; a circuit layer including a conductive pattern in a pixel area of the display area; a first insulating film on the circuit layer, the first insulating film being opened in a contact portion on the conductive pattern; a reflective film on the first insulating film and including a first opening that corresponds to the contact portion; a second insulating film on the reflective film and including a second opening overlapping the first opening; and a display layer on the second insulating film, connected to the conductive pattern through the contact portion, and including a first electrode, a second electrode, and a light-emitting element overlapping the reflective film, wherein, in the contact portion, the reflective film has a wider opening than the second insulating film.Type: ApplicationFiled: September 28, 2021Publication date: March 31, 2022Inventors: Hyun Wook Lee, Kyung Tae Chae, Ki Bum Kim, Jin Taek Kim
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Publication number: 20210407970Abstract: A pixel may include a pixel circuit layer including at least one transistor and a first electrode disposed on a substrate, and a first insulating layer disposed on the at least one transistor and the first electrode, and a display element layer disposed on the pixel circuit layer, the display element layer including a second electrode electrically connected to the at least one transistor, and a plurality of light emitting elements electrically connected to each of the first and second electrodes. The first electrode and the second electrode may be disposed on different layers and may be spaced apart from each other. The plurality of light emitting elements may overlap the first and second electrodes in a plan view and a cross-sectional view.Type: ApplicationFiled: March 24, 2021Publication date: December 30, 2021Applicant: Samsung Display Co., LTD.Inventors: Hyun Wook LEE, Ki Nyeng KANG, Jin Taek KIM, Tae Woo KIM, Hee Keun LEE, Kyung Tae CHAE
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Publication number: 20210384169Abstract: A pixel includes a first electrode and a second electrode facing each other, an insulating layer on the first and second electrodes, a plurality of light-emitting elements located on the insulating layer between the first electrode and the second electrode, a first contact electrode electrically connected to the first electrode, and a second contact electrode electrically connected to the second electrode. Here, a first gap having a constant width in a first direction and a second gap having a width in the first direction that gradually changes along a second direction are located between the first electrode and the second electrode or between the first contact electrode and the second contact electrode.Type: ApplicationFiled: March 23, 2021Publication date: December 9, 2021Inventors: Hee Keun LEE, Jin Taek KIM, Seung Min LEE, Jung Hwan YI, Baek Hyeon LIM, Kyung Tae CHAE
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Publication number: 20210376210Abstract: A pixel includes a first insulating film disposed on a substrate, a light emitting element disposed on the first insulating film, a second insulating film disposed on the light emitting element to cover at least a portion of the light emitting element, a first contact electrode and a second contact electrode, each of the first and second contact electrodes including at least a portion disposed on the first insulating film and connected to the light emitting element, and an encapsulation layer including a photosensitive material.Type: ApplicationFiled: April 5, 2021Publication date: December 2, 2021Applicant: Samsung Display Co., LTD.Inventors: Hyun Wook LEE, Ki Nyeng KANG, Ki Bum KIM, Jin Taek KIM, Kyung Tae CHAE
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Publication number: 20210367183Abstract: A display device and a manufacturing method thereof are provided. A display device includes: a substrate; a first electrode and a second electrode on the substrate, the first electrode and the second electrode being arranged on a same layer to be spaced apart from each other; a first insulating layer on the first electrode and the second electrode; and a light emitting element on the first insulating layer. The first insulating layer includes a groove concave toward the substrate, and the light emitting element is in the groove.Type: ApplicationFiled: May 10, 2021Publication date: November 25, 2021Inventors: Baek Hyeon LIM, Jin Taek KIM, Seung Min LEE, Jung Hwan YI, Hee Keun LEE, Kyung Tae CHAE
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Publication number: 20210367024Abstract: A display device including: a substrate; a conductive layer on the substrate and including a first voltage line and a second voltage line extending in a first direction; a first electrode and a second electrode on the conductive layer, extending in the first direction, and spaced apart from each other; a plurality of light-emitting elements on the first electrode and the second electrode; and an electrode pattern on the conductive layer and separated from the first electrode. The electrode pattern overlaps the first voltage line in a thickness direction and directly contacts the first voltage line.Type: ApplicationFiled: April 21, 2021Publication date: November 25, 2021Inventors: Ki Bum KIM, Kyung Tae CHAE, Ki Nyeng KANG, Jin Taek KIM, Hyun Wook LEE