Patents by Inventor Ji Seong Yang
Ji Seong Yang 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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Publication number: 20240072216Abstract: A display device comprises a substrate including a plurality of light emitting areas, a partition wall portion provided on the substrate and partitioning the plurality of light emitting areas, and a plurality of light emitting parts provided on the substrate and respectively corresponding to the plurality of light emitting areas, wherein at least one of the plurality of light emitting parts includes a light emitting element provided on the substrate, and a first color conversion layer covering the light emitting element and including first inorganic particles, and the first inorganic particles include Nd2(Si, Ti, Ge)2O7.Type: ApplicationFiled: June 6, 2023Publication date: February 29, 2024Inventors: Ji Wook MOON, Byung Choon YANG, Ki Seong SEO, Joo Woan CHO
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Patent number: 11903261Abstract: A display device includes a first display substrate including a light emitting element which emits light of a first color or light of a second color different from the first color, a second display substrate including in order toward the first display substrate, a layer including both a bank layer defining an opening and a wavelength control pattern in the opening, a capping layer covering the wavelength control pattern and the bank layer, and a color absorbing layer which corresponds to the bank layer and blocks the light of the first color and the light of the second color. The capping layer includes a first area corresponding to the color absorbing layer, the bank layer includes a second area corresponding to the color absorbing layer, and the first area of the capping layer is between the color absorbing layer and the second area of the bank layer.Type: GrantFiled: May 20, 2021Date of Patent: February 13, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jeong Ki Kim, Won Ji Gu, Jong Hoon Kim, Jea Heon Ahn, Ji Seong Yang, Hwa Yeul Oh
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Publication number: 20230056289Abstract: A display device and a manufacturing method thereof are provided. The display device includes a first substrate; a first color filter, a second color filter, and a third color filter that are on the first substrate; a plurality of roof layers that cover spaces that overlap the first color filter, the second color filter, and the third color filter, respectively; a first color conversion layer that is positioned in a space overlapping the first color filter; a second color conversion layer that is positioned in a space overlapping the second color filter; a transmissive layer that is positioned in a space overlapping the third color filter; and a capping layer that is positioned on the plurality of roof layers.Type: ApplicationFiled: April 26, 2022Publication date: February 23, 2023Inventors: Ji Seong YANG, Seok-Joon HONG, Jang-Il KIM, Gyeong Eun EOH, Song Ee LEE, Si-Wan JEON
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Publication number: 20220199690Abstract: A display device is provided. A display device including a plurality of light-output areas through which incident light is emitted and a light-blocking area which blocks the incident light, the display device includes a substrate, a bank layer which is disposed in the light-blocking area on the substrate and defines a plurality of openings, each of which is disposed in one of the plurality of light-output areas, and a color control pattern disposed in the opening of the bank layer, wherein the bank layer includes a first bank area which has a first thickness and defines the plurality of openings and a second bank area which is disposed between the plurality of openings and has a second thickness smaller than the first thickness.Type: ApplicationFiled: September 23, 2021Publication date: June 23, 2022Inventors: Seon Uk LEE, Hwa Yeul OH, Seung Kil YANG, Song Ee LEE, Yoo Seok JANG, Jeong Ki KIM, Jong Hoon KIM, Ju Yong KIM, Ji Seong YANG, Jun Hwi LIM, Sang Yeon Hwang
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Publication number: 20210399068Abstract: A display device includes a first display substrate including a light emitting element which emits light of a first color or light of a second color different from the first color, a second display substrate including in order toward the first display substrate, a layer including both a bank layer defining an opening and a wavelength control pattern in the opening, a capping layer covering the wavelength control pattern and the bank layer, and a color absorbing layer which corresponds to the bank layer and blocks the light of the first color and the light of the second color. The capping layer includes a first area corresponding to the color absorbing layer, the bank layer includes a second area corresponding to the color absorbing layer, and the first area of the capping layer is between the color absorbing layer and the second area of the bank layer.Type: ApplicationFiled: May 20, 2021Publication date: December 23, 2021Inventors: Jeong Ki KIM, Won Ji GU, Jong Hoon KIM, Jea Heon AHN, Ji Seong YANG, Hwa Yeul OH
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Publication number: 20210384274Abstract: A display device includes a substrate including a light emitting area and a light blocking area that surrounds the light emitting area, and a bank structure disposed in the light blocking area and having an opening that corresponds to the light emitting area. The bank structure has a concave portion that is formed on an upper surface.Type: ApplicationFiled: April 8, 2021Publication date: December 9, 2021Inventors: Jea Heon AHN, Keun Chan OH, Jeong Ki KIM, Jong-Hoon KIM, Ji Seong YANG
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Publication number: 20210320150Abstract: A display device includes: a first substrate including a display area to emit a light having a peak wavelength from light emitting areas and a non-display area surrounding the display area; and a second substrate including transparent areas overlapping the light emitting areas and to convert the peak wavelength of the light or to transmit the light through the transparent areas. The second substrate includes: a base layer including the transparent areas, an inner light blocking area arranged between the transparent areas, and an outer light blocking area arranged outside the transparent areas; a color filter on the base layer; and a light blocking layer above the color filter and including an outer light blocking layer overlapping the outer light blocking area and an inner light blocking layer overlapping the inner light blocking area.Type: ApplicationFiled: December 21, 2020Publication date: October 14, 2021Inventors: Ji Seong YANG, Kang Uk KIM, Seon Uk LEE
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Patent number: 10385569Abstract: A high-strength one-touch rebar coupler includes a coupler body having a hollow portion in the longitudinal direction. The coupler body is formed in a helical shape to provide the inner peripheral surface of the hollow portion with a rebar fastening force in the circumferential direction. The coupler body includes a first guide helix coupling portion, which has first guide sloping portions that slope from the center portion of the hollow portion towards the outside of one side thereof, and a second guide helix coupling portion, which has second guide sloping portions that slope from the center portion of the hollow portion towards the outside of the other side thereof. A first fastening unit is screw-coupled to the first guide helix coupling portion and inserted into one side of the hollow portion. The first fastening unit includes first fastening members, which are slidably coupled to the first guide sloping portions.Type: GrantFiled: July 7, 2015Date of Patent: August 20, 2019Inventors: Hyun Min Yang, Ji Seong Yang
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Publication number: 20170204608Abstract: A high-strength one-touch rebar coupler includes a coupler body having a hollow portion in the longitudinal direction. The coupler body is formed in a helical shape to provide the inner peripheral surface of the hollow portion with a rebar fastening force in the circumferential direction. The coupler body includes a first guide helix coupling portion, which has first guide sloping portions that slope from the center portion of the hollow portion towards the outside of one side thereof, and a second guide helix coupling portion, which has second guide sloping portions that slope from the center portion of the hollow portion towards the outside of the other side thereof. A first fastening unit is screw-coupled to the first guide helix coupling portion and inserted into one side of the hollow portion. The first fastening unit includes first fastening members, which are slidably coupled to the first guide sloping portions.Type: ApplicationFiled: July 7, 2015Publication date: July 20, 2017Inventors: Hyun Min YANG, Ji Seong YANG
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Patent number: 9709857Abstract: A display device may include a substrate having a first substrate portion, a second substrate portion, and a third substrate portion positioned between the first substrate portion and the second substrate portion. The display device may further include a first roof layer and a second roof layer formed of the same material, spaced from each other, and respectively overlapping the first substrate portion and the second substrate portion. The display device may further include a transistor overlapping the third substrate portion. The display device may further include a liquid crystal set. The display device may further include a common electrode portion positioned between the first substrate portion and the liquid crystal set. The display device may further include a sub-pixel electrode positioned between the liquid crystal set and the first roof layer and electrically connected to the transistor.Type: GrantFiled: September 9, 2014Date of Patent: July 18, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seok-Joon Hong, Seong Gyu Kwon, Ji Seong Yang
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Publication number: 20170082891Abstract: A liquid crystal display includes: a substrate; a thin film transistor; a pixel electrode; a roof layer; a liquid crystal layer; and a plurality of partitions. The thin film transistor is disposed on the substrate. The pixel electrode is connected to the thin film transistor. The roof layer is disposed to face the pixel electrode. The liquid crystal layer is formed by a plurality of microcavities between the pixel electrode and the roof layer, wherein the microcavities include a liquid crystal material. The partitions are between the microcavities adjacent to each other, wherein the partitions may include an organic material and are arranged side by side to one another.Type: ApplicationFiled: November 29, 2016Publication date: March 23, 2017Inventors: Seok-Joon HONG, Ji Seong YANG, Tae Woo LIM, Seon Uk LEE, Kyung Tae CHAE
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Patent number: 9575349Abstract: A liquid crystal display according to an exemplary embodiment includes: a substrate; a thin film transistor disposed on the substrate; a pixel electrode connected with the thin film transistor; a roof layer provided facing the pixel electrode; and a capping layer disposed on the roof layer, wherein a plurality of microcavities are between the pixel electrode and the roof layer, each microcavity includes a liquid crystal material, and the roof layer is formed of only at least one inorganic layer.Type: GrantFiled: October 2, 2014Date of Patent: February 21, 2017Assignee: Samsung Display Co., Ltd.Inventors: Ji Seong Yang, Tae Woo Lim, Kyung Tae Chae
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Patent number: 9541786Abstract: A liquid crystal display includes: a substrate; a thin film transistor; a pixel electrode; a roof layer; a liquid crystal layer; and a plurality of partitions. The thin film transistor is disposed on the substrate. The pixel electrode is connected to the thin film transistor. The roof layer is disposed to face the pixel electrode. The liquid crystal layer is formed by a plurality of microcavities between the pixel electrode and the roof layer, wherein the microcavities include a liquid crystal material. The partitions are between the microcavities adjacent to each other, wherein the partitions may include an organic material and are arranged side by side to one another.Type: GrantFiled: January 22, 2015Date of Patent: January 10, 2017Assignee: Samsung Display Co., Ltd.Inventors: Seok-Joon Hong, Ji Seong Yang, Tae Woo Lim, Seon Uk Lee, Kyung Tae Chae
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Patent number: 9448399Abstract: A method of manufacturing an electrowetting display device includes forming a protection layer on a pixel electrode, forming a water-repellent layer on the protection layer, and removing the water-repellent layer from regions surrounding a display area of the pixel electrode. The water-repellent layer is formed by coating the protection layer with a hydrophilic material using a method such as slit coating. The water-repellent layer is removed using a method such as an edge bead removal method. The resulting water-repellent layer has a uniform thickness.Type: GrantFiled: April 3, 2014Date of Patent: September 20, 2016Assignee: Amazon Technologies, Inc.Inventors: Dae Jin Park, Seong Gyu Kwon, Ji Seong Yang, Jun Heui Lee
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Patent number: 9354477Abstract: A liquid crystal display includes a substrate, a thin film transistor, a first protection layer, a pixel electrode, a light blocking layer, a second protection layer, and a roof layer. The thin film transistor is disposed on the substrate. The first protection layer is disposed on the thin film transistor. The pixel electrode is disposed on the first protection layer. The light blocking layer is disposed on the pixel electrode to cover the thin film transistor. The second protection layer is disposed on the light blocking layer. The roof layer is disposed to face the pixel electrode, wherein a plurality of microcavities having injection holes are formed between the pixel electrode and the roof layer. The microcavities comprise liquid crystal molecules, and the first protection layer and the second protection layer have different etch rates.Type: GrantFiled: April 11, 2014Date of Patent: May 31, 2016Assignee: Samsung Display Co., Ltd.Inventors: Ji Seong Yang, Dae Ho Lee, Yong Seok Kim, Han Joon Yoo, Seon Uk Lee
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Publication number: 20150331263Abstract: A liquid crystal display according to an exemplary embodiment includes: a substrate; a thin film transistor disposed on the substrate; a pixel electrode connected with the thin film transistor; a roof layer provided facing the pixel electrode; and a capping layer disposed on the roof layer, wherein a plurality of microcavities are between the pixel electrode and the roof layer, each microcavity includes a liquid crystal material, and the roof layer is formed of only at least one inorganic layer.Type: ApplicationFiled: October 2, 2014Publication date: November 19, 2015Inventors: Ji Seong YANG, Tae Woo LIM, Kyung Tae CHAE
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Publication number: 20150309374Abstract: A display device may include a substrate having a first substrate portion, a second substrate portion, and a third substrate portion positioned between the first substrate portion and the second substrate portion. The display device may further include a first roof layer and a second roof layer formed of the same material, spaced from each other, and respectively overlapping the first substrate portion and the second substrate portion. The display device may further include a transistor overlapping the third substrate portion. The display device may further include a liquid crystal set. The display device may further include a common electrode portion positioned between the first substrate portion and the liquid crystal set. The display device may further include a sub-pixel electrode positioned between the liquid crystal set and the first roof layer and electrically connected to the transistor.Type: ApplicationFiled: September 9, 2014Publication date: October 29, 2015Inventors: Seok-Joon HONG, Seong Gyu KWON, Ji Seong YANG
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Patent number: 9151976Abstract: A display device includes a substrate, a thin film transistor disposed on the substrate, a pixel electrode connected to the thin film transistor, a common electrode disposed opposite to the pixel electrode and spaced apart from the pixel electrode, where a microcavity is defined between the common electrode and the pixel electrode, and a cutout is defined in the common electrode, an insulating layer disposed on the common electrode, a roof layer disposed on the insulating layer, where a liquid crystal injection hole is defined through the common electrode and the roof layer such that the common electrode and the roof layer expose a portion of the microcavity, a liquid crystal layer disposed in the microcavity, and an encapsulation layer disposed on the roof layer, where the encapsulation layer covers the liquid crystal injection hole, and seals the microcavity.Type: GrantFiled: July 12, 2013Date of Patent: October 6, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ji Seong Yang, Won Tae Kim, Kyung Tae Chae, Seok-Joon Hong
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Publication number: 20150234214Abstract: A liquid crystal display includes: a substrate; a thin film transistor; a pixel electrode; a roof layer; a liquid crystal layer; and a plurality of partitions. The thin film transistor is disposed on the substrate. The pixel electrode is connected to the thin film transistor. The roof layer is disposed to face the pixel electrode. The liquid crystal layer is formed by a plurality of microcavities between the pixel electrode and the roof layer, wherein the microcavities include a liquid crystal material. The partitions are between the microcavities adjacent to each other, wherein the partitions may include an organic material and are arranged side by side to one another.Type: ApplicationFiled: January 22, 2015Publication date: August 20, 2015Inventors: Seok-Joon HONG, Ji Seong YANG, Tae Woo LIM, Seon Uk LEE, Kyung Tae CHAE
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Publication number: 20150138478Abstract: A liquid crystal display includes a substrate, a thin film transistor, a first protection layer, a pixel electrode, a light blocking layer, a second protection layer, and a roof layer. The thin film transistor is disposed on the substrate. The first protection layer is disposed on the thin film transistor. The pixel electrode is disposed on the first protection layer. The light blocking layer is disposed on the pixel electrode to cover the thin film transistor. The second protection layer is disposed on the light blocking layer. The roof layer is disposed to face the pixel electrode, wherein a plurality of microcavities having injection holes are formed between the pixel electrode and the roof layer. The microcavities comprise liquid crystal molecules, and the first protection layer and the second protection layer have different etch rates.Type: ApplicationFiled: April 11, 2014Publication date: May 21, 2015Applicant: Samsung Display Co., Ltd.Inventors: Ji Seong YANG, Dae Ho LEE, Yong Seok KIM, Han Joon YOO, Seon Uk LEE