Patents by Inventor Hang Sup Cho
Hang Sup Cho 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: 20250311572Abstract: The embodiment discloses a display device including: a first display area including a plurality of first pixels; and a second display area including a plurality of pixel areas where a plurality of second pixels are arranged and a plurality of light transmitting areas arranged between the plurality of pixel areas. The second display area includes a plurality of metal wires arranged in the pixel areas and a plurality of light transmitting wires arranged in the light transmitting areas and connected to the plurality of metal wires arranged in the pixel areas respectively.Type: ApplicationFiled: March 24, 2025Publication date: October 2, 2025Applicant: LG DISPLAY CO., LTD.Inventors: Won Hoon PARK, Choong Gi AN, Seo In LEE, Dhang KWON, Hang Sup CHO
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Publication number: 20240397768Abstract: Display devices are disclosed. The display device comprises a substrate including an electrostatic discharge area where an electrostatic discharge element is disposed and a normal area surrounding the electrostatic discharge area, a lower planarization layer disposed on the substrate, a first trench positioned between the electrostatic discharge area and the normal area, and disposed in the lower planarization layer, a first upper planarization layer positioned in the normal area, and disposed on the lower planarization layer, and an insulation layer disposed on the first upper planarization layer, the first trench, and the lower planarization layer, and formed of an inorganic material, thereby preventing electrolytic corrosion in the electrostatic discharge area.Type: ApplicationFiled: May 17, 2024Publication date: November 28, 2024Inventors: Seung Jin Han, Dhang Kwon, Hang Sup Cho
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Patent number: 9595691Abstract: Disclosed is an organic light emitting diode device fabrication method that includes: preparing a substrate which is defined into a display area and a non-display area; forming a light emission portion, which includes a thin film transistor and an organic light emission layer in the display area, and a pad portion in a part of the non-display area; sequentially forming a sacrificial layer and an encapsulation passivation film throughout the display and non-display areas; and separating the sacrificial layer and the encapsulation passivation film from the pad portion through an irradiation of laser light.Type: GrantFiled: February 18, 2016Date of Patent: March 14, 2017Assignee: LG DISPLAY CO., LTD.Inventors: Sang Chul Jung, Hang Sup Cho
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Publication number: 20160164036Abstract: Disclosed is an organic light emitting diode device fabrication method that includes: preparing a substrate which is defined into a display area and a non-display area; forming a light emission portion, which includes a thin film transistor and an organic light emission layer in the display area, and a pad portion in a part of the non-display area; sequentially forming a sacrificial layer and an encapsulation passivation film throughout the display and non-display areas; and separating the sacrificial layer and the encapsulation passivation film from the pad portion through an irradiation of laser light.Type: ApplicationFiled: February 18, 2016Publication date: June 9, 2016Inventors: Sang Chul JUNG, Hang Sup CHO
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Patent number: 9343519Abstract: Provided is a method of manufacturing an organic light emitting display device. The method includes: providing a first substrate including: a display portion, and a non-display portion, forming a thin film transistor (TFT) and an organic light emitting diode (OLED) in the display portion of the first substrate, providing a pad portion including: at least one pad contact portion at the non-display portion and electrically connected to the TFT, and a pad insulating portion between adjacent pad contact portions, providing an anti-moisture insulation layer entirely covering the first substrate, adhering an encapsulating substrate onto the anti-moisture insulation portion in correspondence with the display portion, and removing the anti-moisture insulation layer, at the pad contact portion, using a laser.Type: GrantFiled: November 26, 2014Date of Patent: May 17, 2016Assignee: LG Display Co., Ltd.Inventors: Seung Hyun Lee, Hang Sup Cho, Tae Hyung Lee, Yong Woo Yoo
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Patent number: 9333700Abstract: Disclosed is an imprinting apparatus and imprinting method using the same that prevent a process of forming a pattern on a substrate from being affected by flatness of a stage. The imprinting apparatus comprises a chamber unit in which a process of forming a pattern on a substrate is carried out; a stage for supporting the substrate on which a resin layer is formed; an installing member positioned above the stage and having a mold member attached to transform the resin layer so as to form the pattern on the substrate; and a first spraying unit for spraying fluid to separate the substrate supported by the stage from the stage, wherein the installing member moves the mold member in the direction getting near to the substrate separated from the stage so that the mold member and the resin layer are brought into contact with each other.Type: GrantFiled: March 18, 2014Date of Patent: May 10, 2016Assignee: LG DISPLAY CO., LTD.Inventors: Doo Hee Jang, Tae Joon Song, Dhang Kwon, Hang Sup Cho, Seong Pil Cho, Ho Su Kim, Jin Hee Jang
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Patent number: 9299952Abstract: Disclosed is an organic light emitting diode device fabrication method that includes: preparing a substrate which is defined into a display area and a non-display area; forming a light emission portion, which includes a thin film transistor and an organic light emission layer in the display area, and a pad portion in a part of the non-display area; sequentially forming a sacrificial layer and an encapsulation passivation film throughout the display and non-display areas; and separating the sacrificial layer and the encapsulation passivation film from the pad portion through an irradiation of laser light.Type: GrantFiled: June 5, 2014Date of Patent: March 29, 2016Assignee: LG DISPLAY CO., LTD.Inventors: Sang Chul Jung, Hang Sup Cho
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Publication number: 20150147831Abstract: Provided is a method of manufacturing an organic light emitting display device. The method includes: providing a first substrate including: a display portion, and a non-display portion, forming a thin film transistor (TFT) and an organic light emitting diode (OLED) in the display portion of the first substrate, providing a pad portion including: at least one pad contact portion at the non-display portion and electrically connected to the TFT, and a pad insulating portion between adjacent pad contact portions, providing an anti-moisture insulation layer entirely covering the first substrate, adhering an encapsulating substrate onto the anti-moisture insulation portion in correspondence with the display portion, and removing the anti-moisture insulation layer, at the pad contact portion, using a laser.Type: ApplicationFiled: November 26, 2014Publication date: May 28, 2015Applicant: LG Display Co., Ltd.Inventors: Seung Hyun Lee, Hang Sup Cho, Tae Hyung Lee, Yong Woo Yoo
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Publication number: 20150001497Abstract: Disclosed is an organic light emitting diode device fabrication method that includes: preparing a substrate which is defined into a display area and a non-display area; forming a light emission portion, which includes a thin film transistor and an organic light emission layer in the display area, and a pad portion in a part of the non-display area; sequentially forming a sacrificial layer and an encapsulation passivation film throughout the display and non-display areas; and separating the sacrificial layer and the encapsulation passivation film from the pad portion through an irradiation of laser light.Type: ApplicationFiled: June 5, 2014Publication date: January 1, 2015Inventors: Sang Chul JUNG, Hang Sup CHO
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Publication number: 20140199426Abstract: Disclosed is an imprinting apparatus and imprinting method using the same that prevent a process of forming a pattern on a substrate from being affected by flatness of a stage. The imprinting apparatus comprises a chamber unit in which a process of forming a pattern on a substrate is carried out; a stage for supporting the substrate on which a resin layer is formed; an installing member positioned above the stage and having a mold member attached to transform the resin layer so as to form the pattern on the substrate; and a first spraying unit for spraying fluid to separate the substrate supported by the stage from the stage, wherein the installing member moves the mold member in the direction getting near to the substrate separated from the stage so that the mold member and the resin layer are brought into contact with each other.Type: ApplicationFiled: March 18, 2014Publication date: July 17, 2014Applicant: LG DISPLAY CO., LTD.Inventors: Doo Hee JANG, Tae Joon SONG, Dhang KWON, Hang Sup CHO, Seong Pil CHO, Ho Su KIM, Jin Hee JANG
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Patent number: 8728377Abstract: Disclosed is an imprinting apparatus and imprinting method using the same that prevent a process of forming a pattern on a substrate from being affected by flatness of a stage. The imprinting apparatus comprises a chamber unit in which a process of forming a pattern on a substrate is carried out; a stage for supporting the substrate on which a resin layer is formed; an installing member positioned above the stage and having a mold member attached to transform the resin layer so as to form the pattern on the substrate; and a first spraying unit for spraying fluid to separate the substrate supported by the stage from the stage, wherein the installing member moves the mold member in the direction getting near to the substrate separated from the stage so that the mold member and the resin layer are brought into contact with each other.Type: GrantFiled: May 13, 2011Date of Patent: May 20, 2014Assignee: LG Display Co., Ltd.Inventors: Doo Hee Jang, Tae Joon Song, Dhang Kwon, Hang Sup Cho, Seong Pil Cho, Ho Su Kim, Jin Hee Jang
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Patent number: 8730436Abstract: Disclosed herein are a liquid crystal display (LCD) device and a method for manufacturing the same, capable of preventing problems (i.e., movement of balls, damage to the surfaces that face spacers upon application of predetermined pressure, and variation in cell gap) associated with the use of the ball spacers. The liquid crystal display device includes a first substrate and a second substrate facing each other, a spacer formed on the first substrate, wherein the spacer includes a plurality of balls and a solid to aggregate the balls together and adhere the balls to the first substrate, a hard coating layer formed on the second substrate facing the spacer, and a liquid crystal layer filled between the first substrate and the second substrate.Type: GrantFiled: April 25, 2012Date of Patent: May 20, 2014Assignee: LG Display Co., Ltd.Inventors: Jun Beom Cho, Hyeon Jin Seo, Jeong Hoon Lee, Dhang Kwon, Hang Sup Cho, Ho Su Kim
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Patent number: 8728331Abstract: A method of fabricating an imprint mold is disclosed. The method includes: forming a first photo resist pattern on a substrate; etching the substrate using the first photo resist pattern as an etch mask to form a first pattern in the substrate; ashing the first photo resist pattern to form a second photo resist pattern; and etching the substrate using the second photo resist pattern to form a second pattern derived from the substrate and a third pattern derived from the first pattern.Type: GrantFiled: December 7, 2010Date of Patent: May 20, 2014Assignee: LG Display Co., Ltd.Inventors: Doo Hee Jang, Dhang Kwon, Hang Sup Cho, Ho Su Kim
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Patent number: 8354142Abstract: A method for coating a polyimide layer includes, placing a substrate on a print table; jetting polyimide liquid onto the substrate from a jetting surface provided over the print table; and wiping the jetting surface by moving a wiper from one side of the jetting surface to another side of the jetting surface while the wiper contacts the jetting surface, wherein the wiper is made of one of a perfluoro-based polymer.Type: GrantFiled: January 21, 2010Date of Patent: January 15, 2013Assignee: LG Display Co., Ltd.Inventors: Ki Du Cho, Bong Chul Kim, Hui Jae Lee, Sun Ja Kim, Hwang Un Seo, Hang Sup Cho, Eun Mi Kim
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Patent number: 8325312Abstract: A liquid crystal display (LCD) device maintains a cell gap and prevents press defects via the use of ball spacers. The liquid crystal display device includes first and second substrates facing each other, a plurality of first spacers, a plurality of second spacers, and a liquid crystal layer filled between the first and second substrates. The first spacers are formed between the first and second substrates at portions of a black matrix layer of the second substrate. The first spacers include a plurality of first balls with a first diameter and a first solid to aggregate the first balls. The second spacers are formed at portions of the black matrix layer between the first and second substrates. The second spacers include a plurality of second balls with a second diameter 0.2 to 0.6 ?m smaller than the first diameter and a second solid to aggregate the second balls.Type: GrantFiled: August 26, 2008Date of Patent: December 4, 2012Assignee: LG Display Co., Ltd.Inventors: Hyeon Jin Seo, Jeong Hoon Lee, Dhang Kwon, Hang Sup Cho, Ho Su Kim
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Patent number: 8305544Abstract: A liquid crystal display (LCD) device and a method for manufacturing the same are discussed. According to an embodiment, the liquid crystal display device includes a first substrate and a second substrate facing each other, wherein each of the first and second substrates includes pixel regions to form a matrix, a black matrix layer arranged in a region other than the pixel regions gate lines and data lines arranged in a portion corresponding to the black matrix layer spacers arranged in predetermined portions provided on the black matrix layer wherein each of the plurality of spacers includes one or more balls, and a solid to adhere the one or more balls to the first or second substrate, and a liquid crystal layer filled between the first substrate and the second substrate.Type: GrantFiled: September 15, 2011Date of Patent: November 6, 2012Assignee: LG Display Co., Ltd.Inventors: Bong Chul Kim, Hyeon Jin Seo, Jeong Hoon Lee, Dhang Kwon, Hang Sup Cho, Ho Su Kim
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Publication number: 20120206686Abstract: Disclosed herein are a liquid crystal display (LCD) device and a method for manufacturing the same, capable of preventing problems (i.e., movement of balls, damage to the surfaces that face spacers upon application of predetermined pressure, and variation in cell gap) associated with the use of the ball spacers. The liquid crystal display device includes a first substrate and a second substrate facing each other, a spacer formed on the first substrate, wherein the spacer includes a plurality of balls and a solid to aggregate the balls together and adhere the balls to the first substrate, a hard coating layer formed on the second substrate facing the spacer, and a liquid crystal layer filled between the first substrate and the second substrate.Type: ApplicationFiled: April 25, 2012Publication date: August 16, 2012Inventors: Jun Beom Cho, Hyeon Jin Seo, Jeong Hoon Lee, Dhang Kwon, Hang Sup Cho, Ho Su Kim
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Patent number: 8184257Abstract: Disclosed herein are a liquid crystal display (LCD) device and a method for manufacturing the same, capable of preventing problems (i.e., movement of balls, damage to the surfaces that face spacers upon application of predetermined pressure, and variation in cell gap) associated with the use of the ball spacers. The liquid crystal display device includes a first substrate and a second substrate facing each other, a spacer formed on the first substrate, wherein the spacer includes a plurality of balls and a solid to aggregate the balls together and adhere the balls to the first substrate, a hard coating layer formed on the second substrate facing the spacer, and a liquid crystal layer filled between the first substrate and the second substrate.Type: GrantFiled: September 12, 2008Date of Patent: May 22, 2012Assignee: LG Display Co., Ltd.Inventors: Jun Beom Cho, Hyeon Jin Seo, Jeong Hoon Lee, Dhang Kwon, Hang Sup Cho, Ho Su Kim
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Patent number: 8174665Abstract: Disclosed is a liquid crystal display (LCD) device and a method for manufacturing the same, capable of maintaining a cell gap and preventing press defects caused by application of a predetermined external pressure via the use of ball spacers.Type: GrantFiled: March 28, 2011Date of Patent: May 8, 2012Assignee: LG Display Co., Ltd.Inventors: Bong Chul Kim, Hyeon Jin Seo, Dhang Kwon, Hang Sup Cho, Ho Su Kim
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Publication number: 20120008084Abstract: A liquid crystal display (LCD) device and a method for manufacturing the same are discussed. According to an embodiment, the liquid crystal display device includes a first substrate and a second substrate facing each other, wherein each of the first and second substrates includes pixel regions to form a matrix, a black matrix layer arranged in a region other than the pixel regions gate lines and data lines arranged in a portion corresponding to the black matrix layer spacers arranged in predetermined portions provided on the black matrix layer wherein each of the plurality of spacers includes one or more balls, and a solid to adhere the one or more balls to the first or second substrate, and a liquid crystal layer filled between the first substrate and the second substrate.Type: ApplicationFiled: September 15, 2011Publication date: January 12, 2012Inventors: Bong Chul KIM, Hyeon Jin Seo, Jeong Hoon Lee, Dhang Kwon, Hang Sup Cho, Ho Su Kim