Patents by Inventor Nam Seok BAE
Nam Seok BAE 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: 20230059263Abstract: A pattern film, a method for manufacturing a pattern film, and a transmittance variable device comprising the same are disclosed herein. In some embodiments, a pattern film includes a base layer, and a spacer pattern formed on the base layer, the spacer pattern comprises a partition wall spacer comprises a plurality of spacer dots and a spacer line connecting the spacer dots, and a ball spacer, the ball spacer is one of embedded in, partially embedded in, or in contact with the partition wall spacer, when any 3 or more spacer dots are selected, the spacer line forms a closed figure having the selected spacer dots at the vertices thereof, the selected spacer dots are not present inside the closed figure, a length of at least one side of the closed figure is different from lengths of the remaining sides, and each spacer dot has irregularity of 50% or greater.Type: ApplicationFiled: February 4, 2021Publication date: February 23, 2023Applicant: LG Chem, Ltd.Inventors: Cheolock Song, Han Min Seo, Nam Seok Bae, Jiehyun Seong, Seung Heon Lee, Minjun Gim
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Publication number: 20220357607Abstract: A pattern film, a transmittance variable device comprising the same, and a method for manufacturing a transmittance variable device are disclosed herein. In some embodiments, a pattern film includes a first base layer, and a spacer pattern formed on the first base layer, wherein the spacer pattern comprises a partition wall spacer and a ball spacer, wherein the ball spacer is one of embedded in, partially embedded in, or in contact with the partition wall spacer, and wherein an area of the spacer pattern per unit area of the first base layer is 5% or greater to 17% or less.Type: ApplicationFiled: February 4, 2021Publication date: November 10, 2022Applicant: LG Chem, Ltd.Inventors: Cheolock Song, Han Min Seo, Nam Seok Bae, Jinhong Kim, Minjun Gim
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Patent number: 11493807Abstract: A substrate on which a specific type spacer is formed, a substrate comprising an alignment film formed on the spacer, and an optical device using such a substrate are disclosed herein. By controlling the shape of the spacer formed on the substrate, even when the alignment film is formed on the top of the spacer and the orientation treatment is performed, the uniform orientation treatment can be performed without any influence by the step or the like of the spacer, whereby a substrate or the like capable of providing a device having excellent optical performance can be provided.Type: GrantFiled: December 20, 2019Date of Patent: November 8, 2022Inventors: Han Min Seo, Ji Young Hwang, Cheol Ock Song, Nam Seok Bae, Seung Heon Lee, Dong Hyun Oh, Jung Sun You
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Patent number: 11467452Abstract: A substrate on which spacers are disposed in a certain arrangement state and an optical device using such a substrate are provided. A plurality of spacers are irregularly disposed on a substrate depending on a predetermined rule, so that overall uniform optical characteristics can be ensured without causing a so-called moire phenomenon or the like, while the spacers maintain the uniform cell gap in the construction of the optical device.Type: GrantFiled: July 27, 2018Date of Patent: October 11, 2022Inventors: Han Min Seo, Ji Young Hwang, Hyeon Choi, Seung Heon Lee, Dong Hyun Oh, Jung Sun You, Cheol Ock Song, Nam Seok Bae
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Patent number: 11428994Abstract: A substrate having a spacer formed thereon, a method of making the same, and an optical device including the same are disclosed herein. In one embodiment, a substrate includes a base layer, and a black column spacer formed on the base layer, wherein the black column spacer has an optical density in a range of 1.1 to 4, and wherein the black column spacer having a curved portion, wherein a cross section of the curved portion having at least one region having curvature.Type: GrantFiled: January 24, 2020Date of Patent: August 30, 2022Inventors: Cheol Ock Song, Ji Young Hwang, Han Min Seo, Sung Eun Park, Nam Seok Bae, Seung Heon Lee, Jung Sun You
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Publication number: 20220234277Abstract: A substrate and a method for producing the same are disclosed herein. In some embodiments, a substrate includes a base layer, a black layer formed on the base layer, and column spacers formed on the black layer, wherein a loss rate of spacers measured by a peel test is 15% or less. The substrate can have excellent adhesiveness of the spacer to the base layer or the black layer and ensuring appropriate darkening properties. The method can effectively produce such a substrate without adverse effects such as occurrence of foreign materials without separate treatment such as heat treatment.Type: ApplicationFiled: April 19, 2022Publication date: July 28, 2022Applicant: LG Chem, Ltd.Inventors: Cheol Ock Song, Seung Heon Lee, Ji Young Hwang, Han Min Seo, Nam Seok Bae, Jin Woo Park, Jung Sun You
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Patent number: 11338499Abstract: A substrate and a method for producing the same are disclosed herein. In some embodiments, a substrate includes a base layer, a black layer formed on the base layer, and column spacers formed on the black layer, wherein a loss rate of spacers measured by a peel test is 15% or less. The substrate can have excellent adhesiveness of the spacer to the base layer or the black layer and ensuring appropriate darkening properties. The method can effectively produce such a substrate without adverse effects such as occurrence of foreign materials without separate treatment such as heat treatment.Type: GrantFiled: February 3, 2020Date of Patent: May 24, 2022Inventors: Cheol Ock Song, Seung Heon Lee, Ji Young Hwang, Han Min Seo, Nam Seok Bae, Jin Woo Park, Jung Sun You
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Patent number: 11275263Abstract: A partition wall pattern film including a transparent substrate; a first electrode layer provided on the transparent substrate; a partition wall pattern provided on the first electrode layer; and a second electrode layer pattern provided on an entire upper surface of the partition wall pattern and at least a part of a lateral surface of the partition wall pattern.Type: GrantFiled: March 14, 2019Date of Patent: March 15, 2022Inventors: Yong Goo Son, Nam Seok Bae, Seung Heon Lee
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Patent number: 11163197Abstract: A substrate having a spacer thereon and an optical device including the same are disclosed herein. In some embodiments, a substrate includes a base layer, a transparent column spacer formed on the base layer, and a black layer present between the transparent column spacer and the base layer. In some embodiments, an alignment film is present on the spacer.Type: GrantFiled: January 24, 2020Date of Patent: November 2, 2021Inventors: Nam Seok Bae, Seung Heon Lee, Song Ho Jang, Dong Hyun Oh, Jin Woo Park, Ji Young Hwang, Jung Sun You, Han Min Seo, Cheol Ock Song
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Publication number: 20210311343Abstract: A substrate, an optical device include the same, and a method of making the same are disclosed herein. In some embodiments, a substrate includes a base layer, a plurality of column spacers disposed on the base layer, and a ball spacer attached to or embedded in at least one of the plurality of column spacers. The spacers having excellent dimensional accuracy and adhesiveness on the substrate.Type: ApplicationFiled: November 18, 2019Publication date: October 7, 2021Applicant: LG Chem, Ltd.Inventors: Cheol Ock Song, Han Min Seo, Nam Seok Bae, Jae Sung Han, Seung Heon Lee
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Patent number: 11029596Abstract: The present application relates to a film mask comprising: a transparent substrate; a darkened light-shielding pattern layer provided on the transparent substrate; and an embossed pattern part provided on a surface of the transparent substrate, which is provided with the darkened light-shielding pattern layer, a method for manufacturing the same, a method for forming a pattern by using the same, and a pattern formed by using the same.Type: GrantFiled: January 31, 2017Date of Patent: June 8, 2021Assignee: LG CHEM, LTD.Inventors: Ji Young Hwang, Han Min Seo, Nam Seok Bae, Seung Heon Lee, Dong Hyun Oh, Jungsun You
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Patent number: 10969686Abstract: The present application relates to a film mask comprising: a transparent substrate; a darkened light-shielding pattern layer provided on the transparent substrate; and groove portions provided in a region where the darkened light-shielding pattern layer is not provided, a method for manufacturing the same, a method for forming a pattern by using the same, and a pattern manufactured by using the same.Type: GrantFiled: January 31, 2017Date of Patent: April 6, 2021Assignee: LG CHEM, LTD.Inventors: Ji Young Hwang, Han Min Seo, Sangcholl Han, Seung Heon Lee, Dong Hyun Oh, Dae Han Seo, Nam Seok Bae, Min Soo Song
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Patent number: 10969677Abstract: The present application relates to a film mask including: a transparent substrate; a darkened light-shielding pattern layer provided on the transparent substrate; and a release force enhancement layer provided on the darkened light-shielding pattern layer and having surface energy of 30 dynes/cm or less, a method for manufacturing the same, and a method for forming a pattern using the film mask.Type: GrantFiled: January 31, 2017Date of Patent: April 6, 2021Assignee: LG CHEM, LTD.Inventors: Ji Young Hwang, Han Min Seo, Nam Seok Bae, Seung Heon Lee, Dong Hyun Oh, Chan Hyoung Park, Ki-Hwan Kim, Ilha Lee
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Publication number: 20210088909Abstract: An imprinting photomask including: a transparent substrate; a light blocking pattern provided on the transparent substrate; and a dry film resist (DFR) pattern provided on the light blocking pattern.Type: ApplicationFiled: April 2, 2019Publication date: March 25, 2021Inventors: Yong Goo Son, Seung Heon Lee, Nam Seok Bae
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Publication number: 20200409253Abstract: The present application relates to a method for producing a substrate which includes a step of exposing and developing a photosensitive resin composition layer formed on a surface of a substrate base layer to produce spacers. The method for producing a substrate of the present application can uniformly form spacers having a height according to a desired cell gap and can also freely control the height of the spacers.Type: ApplicationFiled: November 23, 2018Publication date: December 31, 2020Applicant: LG Chem, Ltd.Inventors: Jun Haeng Lee, Yeon Keun Lee, Jung Doo Kim, Han Min Seo, Cheol Ock Song, Nam Seok Bae
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Publication number: 20200362623Abstract: A variable transmittance film includes a first electrode substrate and a second electrode substrate which are provided to face each other; and a liquid receiving layer which is provided between the first electrode substrate and the second electrode substrate and comprises a liquid substance, and a partition wall pattern that divides the liquid substance into two or more spaces, in which at least a part of the partition wall pattern comprises a passageway region that connects the adjacent spaces.Type: ApplicationFiled: April 19, 2019Publication date: November 19, 2020Applicant: LG Chem, Ltd.Inventors: Nam Seok Bae, Yong Goo Son, Seung Heon Lee, Taegyun Kwon, Youngsik Yoon
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Publication number: 20200319496Abstract: A partition wall pattern film according to the exemplary embodiment of the present application comprises: including a transparent substrate; a first electrode layer provided on the transparent substrate; a partition wall pattern provided on the first electrode layer; and a second electrode layer pattern provided on an entire upper surface of the partition wall pattern and at least a part of a lateral surface of the partition wall pattern.Type: ApplicationFiled: March 14, 2019Publication date: October 8, 2020Applicants: LG Chem, Ltd., LG Chem, Ltd.Inventors: Yong Goo Son, Nam Seok Bae, Seung Heon Lee
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Publication number: 20200276750Abstract: A substrate and a method for producing the same are disclosed herein. In some embodiments, a substrate includes a base layer, a black layer formed on the base layer, and column spacers formed on the black layer, wherein a loss rate of spacers measured by a peel test is 15% or less. The substrate can have excellent adhesiveness of the spacer to the base layer or the black layer and ensuring appropriate darkening properties. The method can effectively produce such a substrate without adverse effects such as occurrence of foreign materials without separate treatment such as heat treatment.Type: ApplicationFiled: February 3, 2020Publication date: September 3, 2020Applicant: LG Chem, Ltd.Inventors: Cheol Ock Song, Seung Heon Lee, Ji Young Hwang, Han Min Seo, Nam Seok Bae, Jin Woo Park, Jung Sun You
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Publication number: 20200272016Abstract: Provided is a black partition wall pattern film that comprises: a transparent substrate; an electrode layer provided on the transparent substrate; a black partition wall pattern provided on the electrode layer; and a black UV-curable resin layer provided in a region of the electrode layer where no black partition wall pattern is provided.Type: ApplicationFiled: March 11, 2019Publication date: August 27, 2020Inventors: Yong Goo SON, Nam Seok BAE, Seung Heon LEE
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Publication number: 20200233252Abstract: A substrate having a spacer thereon and an optical device including the same are disclosed herein. In some embodiments, a substrate includes a base layer, a transparent column spacer formed on the base layer, and a black layer present between the transparent column spacer and the base layer. In some embodiments, an alignment film is present on the spacer.Type: ApplicationFiled: January 24, 2020Publication date: July 23, 2020Applicant: LG Chem, Ltd.Inventors: Nam Seok Bae, Seung Heon Lee, Song Ho Jang, Dong Hyun Oh, Jin Woo Park, Ji Young Hwang, Jung Sun You, Han Min Seo, Cheol Ock Song