Patents by Inventor Byung-Kook Choi
Byung-Kook Choi 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: 12295186Abstract: A display device includes a first electrode disposed on a substrate; a light emitting element disposed on the first electrode, the light emitting element being electrically connected to the first electrode; a second electrode disposed on the light emitting element, the second electrode being electrically connected to the light emitting element; a meta structure disposed on the second electrode, the meta structure overlapping the light emitting element; and a bank pattern disposed on the substrate, the bank pattern being spaced apart from the light emitting element.Type: GrantFiled: December 22, 2021Date of Patent: May 6, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Byung Choon Yang, Sung Kook Park, Dae Ho Song, Hyung Il Jeon, Joo Woan Cho, Jin Woo Choi
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Patent number: 12293998Abstract: A display device may include a plurality of light emitting elements on a substrate and arranged in a matrix form along a first arrangement direction and a second arrangement direction crossing the first arrangement direction, and a first sub pixel area and a second sub pixel area each overlapping at least a portion of the plurality of light emitting elements, spaced from each other in a first direction, and extending in a second direction crossing the first direction. The second direction and the first arrangement direction may be non-parallel to each other.Type: GrantFiled: December 16, 2021Date of Patent: May 6, 2025Assignee: Samsung Display Co., Ltd.Inventors: Jin Woo Choi, Byung Choon Yang, Min Woo Kim, Sung Kook Park, Hyung Il Jeon
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Publication number: 20250143083Abstract: The display device includes a substrate including a plurality of pixel areas; and a pixel in each of the plurality of pixel areas. The pixel may include a pixel circuit layer on the substrate and including at least one transistor; a first electrode on the pixel circuit layer and electrically connected to the transistor; a plurality of light emitting elements on the first electrode and electrically connected to the first electrode; a second electrode on the plurality of light emitting elements; and a light blocking pattern on the second electrode and including a plurality of openings corresponding to each of the plurality of light emitting elements. Here, each of the plurality of pixel areas may include an emission area corresponding to each of the plurality of openings and a non-emission area excluding the emission area.Type: ApplicationFiled: January 3, 2025Publication date: May 1, 2025Inventors: Jin Woo CHOI, Min Woo KIM, Sung Kook PARK, Dae Ho SONG, Byung Choon YANG, Hyung II JEON
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Patent number: 12255272Abstract: A display device includes a substrate, and a display element part on the substrate, and including a light emitting element configured to emit light in a display direction, and a bank pattern that protrudes in the display direction, wherein the bank pattern and the light emitting element include a same material.Type: GrantFiled: November 5, 2021Date of Patent: March 18, 2025Assignee: Samsung Display Co., Ltd.Inventors: Jin Woo Choi, Min Woo Kim, Sung Kook Park, Dae Ho Song, Byung Choon Yang, Hyung Il Jeon
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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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Publication number: 20250072173Abstract: A display device includes: a substrate; a transparent electrode on one surface of the substrate; a reflective electrode on the transparent electrode; a transistor on the reflective electrode; and a light emitting element between the transparent electrode and the reflective electrode. The transistor overlaps the light emitting element.Type: ApplicationFiled: November 8, 2024Publication date: February 27, 2025Inventors: Hyung Il JEON, Min Woo KIM, Sung Kook PARK, Dae Ho SONG, Byung Choon YANG, Jin Woo CHOI
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Patent number: 12219810Abstract: The display device includes a substrate including a plurality of pixel areas; and a pixel in each of the plurality of pixel areas. The pixel may include a pixel circuit layer on the substrate and including at least one transistor; a first electrode on the pixel circuit layer and electrically connected to the transistor; a plurality of light emitting elements on the first electrode and electrically connected to the first electrode; a second electrode on the plurality of light emitting elements; and a light blocking pattern on the second electrode and including a plurality of openings corresponding to each of the plurality of light emitting elements. Here, each of the plurality of pixel areas may include an emission area corresponding to each of the plurality of openings and a non-emission area excluding the emission area.Type: GrantFiled: November 8, 2021Date of Patent: February 4, 2025Assignee: Samsung Display Co., Ltd.Inventors: Jin Woo Choi, Min Woo Kim, Sung Kook Park, Dae Ho Song, Byung Choon Yang, Hyung Il Jeon
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Patent number: 10919270Abstract: Provided is a laminated glass, comprising: a soda lime glass; and a non-tempered alkali-free glass bonded to one surface of the soda lime glass, in which a thickness of the soda lime glass is larger than a thickness of the non-tempered alkali-free glass, and an elastic modulus of the non-tempered alkali-free glass is larger than an elastic modulus of the soda lime glass.Type: GrantFiled: April 25, 2017Date of Patent: February 16, 2021Assignee: LG CHEM, LTD.Inventors: Jun Hak Oh, Jae Hyuk Yoon, Chang Hee Lee, Byung Kook Choi
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Patent number: 10662107Abstract: Provided is glass with high temperature stability, a low coefficient of thermal expansion and a high mechanical strength, a light guide plate including the glass to replace the conventional PMMA and metal frame, and fabricating methods thereof. The glass according to the present disclosure is borosilicate glass containing 75˜85 wt % of SiO2, 5˜15 wt % of B2O3, 0˜5 wt % of Al2O3, R2O 1˜7 wt % where R is at least one of Li, Na and K, and <0.005 wt % of Fe2O3 and having the redox ratio 0.5 or more. This glass maintains luminance and has an excellent color difference reduction effect when used in a light guide plate.Type: GrantFiled: April 18, 2017Date of Patent: May 26, 2020Assignee: LG CHEM, LTD.Inventors: Du-Sun Hwang, Hyun-Jin Shim, Chang-Hee Lee, Byung-Kook Choi, Jun-Bo Choi
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Patent number: 10611672Abstract: Provided is glass with high temperature stability, a low coefficient of thermal expansion and a high mechanical strength, a light guide plate including the glass to replace the conventional PMMA and metal frame, and fabricating methods thereof. The glass according to the present disclosure is borosilicate glass containing 75˜85 wt % of SiO2, 5˜15 wt % of B2O3, 0˜5 wt % of Al2O3, R2O 1˜7 wt % where R is at least one of Li, Na and K, and <0.005 wt % of Fe2O3 and having the redox ratio 0.5 or more. This glass maintains luminance and has an excellent color difference reduction effect when used in a light guide plate.Type: GrantFiled: April 18, 2017Date of Patent: April 7, 2020Assignee: LG CHEM, LTD.Inventors: Du-Sun Hwang, Hyun-Jin Shim, Chang-Hee Lee, Byung-Kook Choi, Jun-Bo Choi
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Patent number: 10488586Abstract: A glass light-guide plate having a small color difference and a manufacturing method thereof are provided. The light-guide plate includes glass containing 70 to 85 wt % of SiO2, 5 to 20 wt % of B2O3, 0 to 5 wt % of Al2O3, 1 to 7 wt % of R2O (here, R is at least one of Li, Na, and K), 0 to 0.005 wt % of Fe2O3, and less than 0.002 wt % of a transition metal oxide for adjusting a color difference.Type: GrantFiled: March 20, 2017Date of Patent: November 26, 2019Assignee: LG Chem, Ltd.Inventors: Hyun-Jin Shim, Chang-Hee Lee, Byung-Kook Choi, Jun-Bo Choi, Du-Sun Hwang
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Publication number: 20190134953Abstract: Provided is a laminated glass, comprising: a soda lime glass; and a non-tempered alkali-free glass bonded to one surface of the soda lime glass, in which a thickness of the soda lime glass is larger than a thickness of the non-tempered alkali-free glass, and an elastic modulus of the non-tempered alkali-free glass is larger than an elastic modulus of the soda lime glass.Type: ApplicationFiled: April 25, 2017Publication date: May 9, 2019Applicant: LG CHEM, LTD.Inventors: Jun Hak OH, Jae Hyuk YOON, Chang Hee LEE, Byung Kook CHOI
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Patent number: 10207950Abstract: A glass light-guiding plate which has high-temperature stability and is advantageous in being manufactured in a slim profile is provided. The glass light-guiding plate includes a glass plate including 75 to 85 wt % SiO2, 5 to 20 wt % B2O3, 1 to 5 wt % Al2O3, 3 to 8 wt % R2O (here, R is at least one of Li, Na, and K), and Fe2O3<0.0025 wt %.Type: GrantFiled: September 26, 2016Date of Patent: February 19, 2019Assignee: LG CHEM, LTD.Inventors: Chang-Hee Lee, Hyun-Jin Shim, Byung-Kook Choi, Jun-Bo Choi
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Publication number: 20180364415Abstract: A glass light-guide plate having a small color difference and a manufacturing method thereof are provided. The light-guide plate includes glass containing 70 to 85 wt % of SiO2, 5 to 20 wt % of B2O3, 0 to 5 wt % of Al2O3, 1 to 7 wt % of R2O (here, R is at least one of Li, Na, and K), 0 to 0.005 wt % of Fe2O3, and less than 0.002 wt % of a transition metal oxide for adjusting a color difference.Type: ApplicationFiled: March 20, 2017Publication date: December 20, 2018Inventors: Hyun-Jin SHIM, Chang-Hee LEE, Byung-Kook CHOI, Jun-Bo CHOI, Du-Sun HWANG
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Publication number: 20180265399Abstract: Provided is glass with high temperature stability, a low coefficient of thermal expansion and a high mechanical strength, a light guide plate including the glass to replace the conventional PMMA and metal frame, and fabricating methods thereof. The glass according to the present disclosure is borosilicate glass containing 75˜85 wt % of SiO2, 5˜15 wt % of B2O3, 0˜5 wt % of Al2O3, R2O 1˜7 wt % where R is at least one of Li, Na and K, and <0.005 wt % of Fe2O3 and having the redox ratio 0.5 or more. This glass maintains luminance and has an excellent color difference reduction effect when used in a light guide plate.Type: ApplicationFiled: April 18, 2017Publication date: September 20, 2018Applicant: LG CHEM, LTD.Inventors: Du-Sun HWANG, Hyun-Jin SHIM, Chang-Hee LEE, Byung-Kook CHOI, Jun-Bo CHOI
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Publication number: 20180208500Abstract: A glass light-guiding plate which has high-temperature stability and is advantageous in being manufactured in a slim profile is provided. The glass light-guiding plate includes a glass plate including 75 to 85 wt % SiO2, 5 to 20 wt % B2O3, 1 to 5 wt % Al2O3, 3 to 8 wt % R2O (here, R is at least one of Li, Na, and K), and Fe2O3<0.0025 wt %.Type: ApplicationFiled: September 26, 2016Publication date: July 26, 2018Inventors: Chang-Hee LEE, Hyun-Jin SHIM, Byung-Kook CHOI, Jun-Bo CHOI
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Patent number: 8735883Abstract: A method for fabricating an oxide thin film transistor includes sequentially forming a gate insulating film, an oxide semiconductor layer, and a first insulating layer; selectively patterning the oxide semiconductor layer and the first insulating layer to form an active layer and an insulating layer pattern on the gate electrode; forming a second insulating layer on the substrate having the active layer and the insulating layer pattern formed thereon; and selectively patterning the insulating layer pattern and the second insulating layer to form first and second etch stoppers on the active layer. The oxide semiconductor layer may be a ternary system or quaternary system oxide semiconductor comprising a combination of AxByCzO (A, B, C=Zn, Cd, Ga, In, Sn, Hf, Zr; x, y, z?0).Type: GrantFiled: December 13, 2011Date of Patent: May 27, 2014Assignee: LG Display Co., Ltd.Inventors: Dae-Hwan Kim, Byung-Kook Choi, Sul Lee, Hoon Yim
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Patent number: 8687158Abstract: An array substrate for an in-plane switching mode liquid crystal display device includes: a gate line on a substrate; a data line crossing the gate line to define a pixel region on the substrate; a common line parallel to and spaced apart from the gate line; a gate electrode connected to the gate line; a semiconductor layer disposed over the gate electrode, wherein an area of the semiconductor layer is less than an area of the gate electrode; a source electrode connected to the data line, and a drain electrode spaced apart from the source electrode, the source and drain electrodes disposed on the semiconductor layer; a plurality of pixel electrodes integrated with the drain electrode and extending from the drain electrode in the pixel region; and a plurality of common electrodes connected to the common line and alternately arranged with the plurality of pixel electrodes, wherein each of the source electrode, the drain electrode, the data line and the plurality of pixel electrodes are comprised from a first coType: GrantFiled: June 14, 2007Date of Patent: April 1, 2014Assignee: LG Display Co. Ltd.Inventors: Byung-Kook Choi, Hyo-Uk Kim, Chang-Bin Lee
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Patent number: 8243222Abstract: A method of manufacturing an array substrate for a liquid crystal display device includes forming a gate electrode and a gate line on a substrate through a first mask process, forming a first insulating layer, an active layer, an ohmic contact layer, a buffer metallic layer, and a data line on the substrate including the gate electrode and the gate line through a second mask process, and forming a source electrode, a drain electrode, and a pixel electrode through a third mask process, the pixel electrode extending from the drain electrode, wherein the active layer is disposed over and within the gate electrode.Type: GrantFiled: July 7, 2010Date of Patent: August 14, 2012Assignee: LG Display Co., Ltd.Inventors: Chang-Bin Lee, Byung-Kook Choi
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Publication number: 20120146017Abstract: A method for fabricating an oxide thin film transistor includes sequentially forming a gate insulating film, an oxide semiconductor layer, and a first insulating layer; selectively patterning the oxide semiconductor layer and the first insulating layer to form an active layer and an insulating layer pattern on the gate electrode; forming a second insulating layer on the substrate having the active layer and the insulating layer pattern formed thereon; and selectively patterning the insulating layer pattern and the second insulating layer to form first and second etch stoppers on the active layer. The oxide semiconductor layer may be a ternary system or quaternary system oxide semiconductor comprising a combination of AxByCzO (A, B, C?Zn, Cd, Ga, In, Sn, Hf, Zr; x, y, z?0).Type: ApplicationFiled: December 13, 2011Publication date: June 14, 2012Inventors: Dae-Hwan KIM, Byung-Kook Choi, Sul Lee, Hoon Yim