Patents by Inventor Jung-Hwan Yi
Jung-Hwan Yi 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: 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: 20230403887Abstract: A display device includes a first base substrate including a light-emitting area and a non-light-emitting area around the light-emitting area, a wavelength conversion pattern on the first base substrate in the light-emitting area, and a light-emitting element layer on the wavelength conversion pattern. The light-emitting element layer includes a pixel electrode including a first conductive pattern between the wavelength conversion pattern and the first base substrate, and a second conductive pattern on the wavelength conversion pattern and spaced apart from the first conductive pattern, an organic light-emitting layer on the second conductive pattern, and a common electrode on the organic light-emitting layer.Type: ApplicationFiled: August 28, 2023Publication date: December 14, 2023Applicant: Samsung Display Co., LTD.Inventors: Seung In BAEK, Gun Shik KIM, Mi Ra GWON, Young Jun YOO, Young Eun PARK, Jung Hwan YI, Su Jin CHOI, Youn Ho HAN, Jong Beom HONG
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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: 11756522Abstract: One aspect of the present disclosure relates to a noise masking method through variable masking sound level conversion, capable of adjusting an interval for changing a level of a masking sound for masking noise to an optimal interval so that the masking sound is not perceived as noise, by determining a fluctuation trend of a level of audible noise and adjusting the interval for changing the level of the masking sound for masking the noise into an optimal environment through a control unit.Type: GrantFiled: May 17, 2022Date of Patent: September 12, 2023Assignee: Aquris Co., LtdInventors: Jung-hwan Yi, Chan-goo Kang, Jong-Bo Kim
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Patent number: 11744114Abstract: A display device includes a first base substrate including a light-emitting area and a non-light-emitting area around the light-emitting area, a wavelength conversion pattern on the first base substrate in the light-emitting area, and a light-emitting element layer on the wavelength conversion pattern. The light-emitting element layer includes a pixel electrode including a first conductive pattern between the wavelength conversion pattern and the first base substrate, and a second conductive pattern on the wavelength conversion pattern and spaced apart from the first conductive pattern, an organic light-emitting layer on the second conductive pattern, and a common electrode on the organic light-emitting layer.Type: GrantFiled: October 1, 2020Date of Patent: August 29, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seung In Baek, Gun Shik Kim, Mi Ra Gwon, Young Jun Yoo, Young Eun Park, Jung Hwan Yi, Su Jin Choi, Youn Ho Han, Jong Beom Hong
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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: 20220375447Abstract: One aspect of the present disclosure relates to a noise masking method through variable masking sound level conversion, capable of adjusting an interval for changing a level of a masking sound for masking noise to an optimal interval so that the masking sound is not perceived as noise, by determining a fluctuation trend of a level of audible noise and adjusting the interval for changing the level of the masking sound for masking the noise into an optimal environment through a control unit.Type: ApplicationFiled: May 17, 2022Publication date: November 24, 2022Inventors: Jung-hwan YI, Chan-goo KANG, Jong-bo KIM
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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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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: 20220020734Abstract: A display device includes a first substrate; a first conductive pattern, a first voltage line and a second voltage line on the first substrate; an insulating layer on the first conductive pattern and the second voltage line; a plurality of first light-emitting elements on the insulating layer; a first electrode on the insulating layer and connected to the first conductive pattern, the first electrode overlapping the first voltage line; and a second electrode on the insulating layer and connected to the second voltage line, wherein the plurality of first light-emitting elements are in contact with the first electrode and the second electrode, and wherein a part of an upper surface of the first electrode that overlaps the first conductive pattern and a part of the upper surface of the first electrode that overlaps the first voltage line are located on the same plane.Type: ApplicationFiled: July 15, 2021Publication date: January 20, 2022Inventors: Bek Hyun LIM, Jung-Hwan YI, Hee Keun LEE
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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: 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: 20210313498Abstract: 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: October 23, 2020Publication date: October 7, 2021Inventors: Jin Taek KIM, Seung Min LEE, Jung Hwan YI, Hee Keun LEE, Bek Hyun LIM, Kyung Tae CHAE
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Publication number: 20210296537Abstract: 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: November 13, 2020Publication date: September 23, 2021Inventors: 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: 20210104586Abstract: A display device includes a first base substrate including a light-emitting area and a non-light-emitting area around the light-emitting area, a wavelength conversion pattern on the first base substrate in the light-emitting area, and a light-emitting element layer on the wavelength conversion pattern. The light-emitting element layer includes a pixel electrode including a first conductive pattern between the wavelength conversion pattern and the first base substrate, and a second conductive pattern on the wavelength conversion pattern and spaced apart from the first conductive pattern, an organic light-emitting layer on the second conductive pattern, and a common electrode on the organic light-emitting layer.Type: ApplicationFiled: October 1, 2020Publication date: April 8, 2021Applicant: Samsung Display Co., LTD.Inventors: Seung In BAEK, Gun Shik KIM, Mi Ra GWON, Young Jun YOO, Young Eun PARK, Jung Hwan YI, Su Jin CHOI, Youn Ho HAN, Jong Beom HONG
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Publication number: 20190317263Abstract: A liquid crystal display device includes a light guide plate, an optical film, a quantum dot film, a display panel, a light source unit, and an optical filter. The light guide plate includes a light incident surface and a light emission surface. The optical film is disposed in the light emission surface on the light guide plate, and has a first refractive index. The quantum dot film is disposed on the optical film. The display panel is disposed on the quantum dot film, and displays an image. The light source unit is spaced apart from the light incident surface of the light guide plate, and emits a light. The optical filter is disposed in the light incident surface such that the optical filter is spaced apart from the light source unit, and reflects a first light, which has an angle of incidence greater than a predetermined angle of incidence, among the light.Type: ApplicationFiled: April 9, 2019Publication date: October 17, 2019Inventors: Youn Ho Han, Seung In Baek, Jung Hwan Yi, Mi Ra Gwon, Young Eun Park, Su Jin Choi
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Patent number: 9864206Abstract: An optical modulation device includes a first electrode layer in which a plurality of electrodes are arranged and a second electrode layer, where the optical modulation device configures a Fresnel zone plate wherein groups of adjacent electrodes of the plurality of electrodes define zones of the Fresnel zone plate. A method of driving the optical modulation device includes applying a common voltage to the second electrode layer, applying starting voltages to the first electrode layer in a first step, applying lens voltages to the first electrode layer in a second step, where polarities of the lens voltages with respect to the common voltage are inverted for every zone, and an absolute difference between starting voltages applied to electrodes adjacent to a zone boundary in the first step is less than an absolute difference of the lens voltages applied to electrodes adjacent to a zone boundary in the second step.Type: GrantFiled: June 26, 2015Date of Patent: January 9, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jung Hwan Yi, Kyung Ho Jung