Patents by Inventor Chang-Do Jung
Chang-Do Jung 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: 20250089522Abstract: A display device includes a display panel including a pressed area, a non-pressed area, and an alignment mark area defined on a rear surface overlapping the pressed area, a driving chip disposed on a front surface of the display panel overlapping the pressed area, and a cover panel disposed on the rear surface of the display panel. The cover panel includes a first functional layer disposed on the rear surface of the display panel overlapping the non-pressed area, a second functional layer disposed on the first functional layer, extending along the first functional layer, and disposed on the rear surface of the display panel overlapping the pressed area, and a third functional layer disposed on the second functional layer overlapping the pressed area.Type: ApplicationFiled: April 2, 2024Publication date: March 13, 2025Applicant: Samsung Display Co., LTD.Inventors: Suk Won JUNG, Young Do KIM, Won Jin KIM, Jun Woo YOU, Won Beom LEE, Jeong Seok LEE, Chang Moo LEE
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Patent number: 8835558Abstract: Disclosed is a polylactic acid/polycarbonate resin composition including (A) a mixed resin including (a1) a polycarbonate resin and (a2) a polylactic acid resin, and (B) a modified acrylic-based resin, and a molded product made using the same.Type: GrantFiled: December 18, 2009Date of Patent: September 16, 2014Assignee: Cheil Industries Inc.Inventors: Hyung-Tak Lee, Doo-Han Ha, Chang-Do Jung, Young-Chul Kwon, Jin-Kyung Cho, Young-Mi Chung, Byung-Choon Lee
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Patent number: 8642688Abstract: A glass fiber reinforced polycarbonate resin composition includes (A) a glass fiber reinforced polycarbonate, (B) a mixture of two kinds of organic silicone based compounds comprising (b1) a siloxane based compound and (b2) a silicone based resin, (C) a metal salt based flame retardant, and (D) a fluorinated polyolefin based resin and can have excellent flame retardancy and impact resistance.Type: GrantFiled: December 16, 2011Date of Patent: February 4, 2014Assignee: Cheil Industries Inc.Inventors: Chang Do Jung, Jun Hong Park, Hyo Seon Jeong
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Publication number: 20130281603Abstract: A thermoplastic resin composition comprises: (A) a graft copolymer resin comprising a core comprising a rubber polymer; and a shell formed by graft polymerization of acrylic acid alkyl ester monomer and/or methacrylic acid alkyl ester monomer, unsaturated nitrile monomer, and aromatic vinyl monomer on the surface of the core; (B) a non-graft copolymer resin comprising a copolymer which is formed by polymerizing acrylic acid alkyl ester monomer and/or methacrylic acid alkyl ester monomer, aromatic vinyl monomer, and unsaturated nitrile monomer; and a (co)polymer which is formed by polymerizing acrylic acid alkyl ester monomer, methacrylic acid alkyl ester monomer or a combination thereof; and (C) a siloxane impact reinforcing agent. The composition can have excellent impact strength and scratch resistance, and exhibits reduced or no cloudy white phenomenon at a low temperature.Type: ApplicationFiled: June 24, 2013Publication date: October 24, 2013Inventors: Sung Hun Jin, Chang Do Jung, Bang Duk Kim, Jun Hong Park
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Patent number: 8367780Abstract: A block or graft copolymer including a thermoplastic resin segment and as an aliphatic polyester segment is provided. The copolymer can be used as a compatibilizer for a resin alloy comprising polylactic acid, which can reduce the consumption of petroleum raw materials.Type: GrantFiled: December 4, 2009Date of Patent: February 5, 2013Assignee: Cheil Industries Inc.Inventors: Ji Won Pack, Byeong Do Lee, Chang Do Jung, Hyung Tak Lee
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Publication number: 20120232184Abstract: Provided are an environmentally-friendly polyamide resin composition that includes (A-1) a first polyamide resin including polyamide 11, polyamide 1010, or a combination thereof, (B) a glass fiber having a cross-sectional aspect ratio of about 1.5 or more, and (C) a branched graft copolymer including a polyolefin main chain, and optionally (A-2) second polyamide resin including a C6 organic chain in one repeating unit, and a molded product using the same.Type: ApplicationFiled: May 24, 2012Publication date: September 13, 2012Applicant: CHEIL INDUSTRIES INC.Inventors: Young-Chul KWON, Doo-Han HA, Hyung-Tak LEE, Bong-Jae LEE, Chang-Do JUNG
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Patent number: 8232343Abstract: An environmentally-friendly polylactic acid resin composition includes (A) a mixed resin including (a1) a polylactic acid (PLA) resin and (a2) a polycarbonate resin, and (B) a compatibilizer capable of forming a stereo-complex with the polylactic acid resin. According to the present invention, the polylactic acid resin composition is environmentally-friendly and has excellent appearance and improved welding impact strength, as well as improved mechanical strength and heat resistance. Accordingly, it can be used for manufacturing various molded products requiring heat resistance and mechanical strength, for example electronic parts, office machines, miscellaneous goods, and the like.Type: GrantFiled: May 1, 2009Date of Patent: July 31, 2012Assignee: Cheil Industries Inc.Inventors: Young-Mi Chung, Chang-Do Jung, Young-Jun Lee, Ji-Won Pack, Young-Chul Kwon, Hyung-Tak Lee, Jin-Kyung Cho
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Publication number: 20120172508Abstract: A glass fiber reinforced polycarbonate resin composition includes (A) a glass fiber reinforced polycarbonate, (B) a mixture of two kinds of organic silicone based compounds comprising (b1) a siloxane based compound and (b2) a silicone based resin, (C) a metal salt based flame retardant, and (D) a fluorinated polyolefin based resin and can have excellent flame retardancy and impact resistance.Type: ApplicationFiled: December 16, 2011Publication date: July 5, 2012Applicant: CHEIL INDUSTRIES INC.Inventors: Chang Do Jung, Jun Hong Park, Hyo Seon Jeong
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Publication number: 20120172502Abstract: A flame retardant thermoplastic resin composition according to the present invention comprises (A) about 100 parts by weight of rubber modified aromatic vinyl copolymer resin; (B) about 0.1 parts by weight to about 10 parts by weight of a matting agent, based on about 100 parts by weight of the rubber modified aromatic vinyl copolymer resin (A); and (C) about 19 parts by weight to about 23 parts by weight of a brominated flame retardant, based on about 100 parts by weight of the rubber modified aromatic vinyl copolymer resin (A). The composition can have excellent impact strength and low-gloss property.Type: ApplicationFiled: December 21, 2011Publication date: July 5, 2012Applicant: CHEIL INDUSTRIES INC.Inventors: Woo Kyun Lee, Bang Duk Kim, Chang Do Jung, Sung Hun Jin
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Patent number: 8133943Abstract: Disclosed is a polylactic acid/polycarbonate resin composition including (A) about 100 parts by weight of a mixed resin including: (a1)) about 10 to about 90 wt % of a polycarbonate resin and (a2) about 10 to about 90 wt % of a polylactic acid resin; (B) about 1 to about 50 parts by weight of a flame retardant based on about 100 parts by weight of the mixed resin; (C) about 1 to about 30 parts by weight of an acryl-based copolymer based on about 100 parts by weight of the mixed resin; and (D) about 1 to about 20 parts by weight of an impact-reinforcing agent based on about 100 parts by weight of the mixed resin.Type: GrantFiled: November 18, 2009Date of Patent: March 13, 2012Assignee: Cheil Industries Inc.Inventors: Jin-Kyung Cho, Hyung-Tak Lee, Doo-Han Ha, Chang-Do Jung
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Patent number: 8044134Abstract: The present invention relates to a polylactic acid resin composition. The composition includes about 25 to about 80 parts by weight of a polylactic acid resin, (B) about 20 to about 75 parts by weight of a polycarbonate resin, and (C) about 0.01 to about 5 parts by weight of a chain extender including an amine group, based on about 100 parts by weight of (A)+(B). The polylactic acid resin composition of the present invention is environmentally-friendly and has excellent hydrolysis resistance and simultaneously improved mechanical strength and heat resistance, and accordingly can be used for manufacturing various molded products requiring heat resistance and mechanical strength, for example vehicles, machine parts, electronic parts, office machines, miscellaneous goods, and the like.Type: GrantFiled: June 5, 2009Date of Patent: October 25, 2011Assignee: Cheil Industries Inc.Inventors: Young-Mi Chung, Chang-Do Jung
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Publication number: 20100168332Abstract: Disclosed are a polylactic acid resin composition that includes (A) about 10 to about 80 wt % of a polylactic acid resin; (B) about 5 to about 50 wt % of a rubber modified vinyl-based graft copolymer; (C) about 10 to about 80 wt % of a vinyl-based copolymer; and (D) about 5 to about 75 wt % of poly(meth)acrylic acid alkyl ester, and a molded product made using the same.Type: ApplicationFiled: December 30, 2009Publication date: July 1, 2010Applicant: CHEIL INDUSTRIES INC.Inventors: Young-Mi CHUNG, Doo-Han HA, Chang-Do JUNG
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Publication number: 20100160559Abstract: Disclosed is a polylactic acid/polycarbonate resin composition including (A) a mixed resin including (a1) a polycarbonate resin and (a2) a polylactic acid resin, and (B) a modified acrylic-based resin, and a molded product made using the same.Type: ApplicationFiled: December 18, 2009Publication date: June 24, 2010Applicant: CHEIL INDUSTRIES INC.Inventors: Hyung-Tak Lee, Doo-Han Ha, Chang-Do Jung, Young-Chul Kwon, Jin-Kyung Cho, Young-Mi Chung, Byung-Choon Lee
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Publication number: 20100160499Abstract: Disclosed is a polylactic acid/polycarbonate resin composition including (A) about 100 parts by weight of a mixed resin including: (a1)) about 10 to about 90 wt % of a polycarbonate resin and (a2) about 10 to about 90 wt % of a polylactic acid resin; (B) about 1 to about 50 parts by weight of a flame retardant based on about 100 parts by weight of the mixed resin; (C) about 1 to about 30 parts by weight of an acryl-based copolymer based on about 100 parts by weight of the mixed resin; and (D) about 1 to about 20 parts by weight of an impact-reinforcing agent based on about 100 parts by weight of the mixed resin.Type: ApplicationFiled: November 18, 2009Publication date: June 24, 2010Applicant: CHEIL INDUSTRIES INC.Inventors: Jin-Kyung CHO, Hyung-Tak LEE, Doo-Han HA, Chang-Do JUNG
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Publication number: 20100160558Abstract: Disclosed are a polyhydroxy alkanoate resin composition including (A) a polyhydroxy alkanoate resin and (B) a vinyl-based copolymer resin including (B-1) a copolymer including two or more monomers comprising an aromatic vinyl monomer, an unsaturated nitrile monomer, an acryl-based monomer, or a combination thereof; and (B-2) a rubber-modified vinyl-based graft copolymer and a molded product fabricated using the same.Type: ApplicationFiled: December 10, 2009Publication date: June 24, 2010Applicant: CHEIL INDUSTRIES INC.Inventors: Young-Mi CHUNG, Chang-Do JUNG, Doo-Han HA
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Publication number: 20100152362Abstract: A block or graft copolymer including a thermoplastic resin segment and as an aliphatic polyester segment is provided. The copolymer can be used as a compatibilizer for a resin alloy comprising polylactic acid, which can reduce the consumption of petroleum raw materials.Type: ApplicationFiled: December 4, 2009Publication date: June 17, 2010Applicant: CHEIL INDUSTRIES INC.Inventors: Ji Won PACK, Byeong Do LEE, Chang Do JUNG, Hyung Tak LEE
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Publication number: 20100144932Abstract: Disclosed is a natural fiber reinforced polylactic acid resin composition that includes (A) a mixed resin including (A-1) a polylactic acid resin and (A-2) a natural fiber, (B) a coupling agent, and (C) carbon nanotubes.Type: ApplicationFiled: December 9, 2009Publication date: June 10, 2010Applicant: CHEIL INDUSTRIES INC.Inventors: Young-Chul KWON, Chang-Do JUNG, Hyung-Tak LEE, Young-Kyu CHANG
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Publication number: 20100125112Abstract: Disclosed is a natural fiber-reinforced polylactic acid resin composition that includes (A) a first polylactic acid resin; and (B) a natural fiber surface-treated with a second polylactic acid resin. The second polylactic acid resin can include a different isomer from the first polylactic acid resin, or alternatively, when measured under isothermal conditions after quenching from about 240° C. to a crystallization temperature, a spherulite crystal is first formed at a surface of the natural fiber and the growth rate at the surface is faster than at other positions. A molded product made using the natural fiber-reinforced polylactic acid resin composition is also disclosed.Type: ApplicationFiled: November 16, 2009Publication date: May 20, 2010Applicant: CHEIL INDUSTRIES INC.Inventors: Young-Mi CHUNG, Chang-Do JUNG, Doo-Han HA
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Publication number: 20100056700Abstract: An environmentally-friendly polylactic acid resin composition includes (A) a mixed resin including (a1) a polylactic acid (PLA) resin and (a2) a polycarbonate resin, and (B) a compatibilizer capable of forming a stereo-complex with the polylactic acid resin. According to the present invention, the polylactic acid resin composition is environmentally-friendly and has excellent appearance and improved welding impact strength, as well as improved mechanical strength and heat resistance. Accordingly, it can be used for manufacturing various molded products requiring heat resistance and mechanical strength, for example electronic parts, office machines, miscellaneous goods, and the like.Type: ApplicationFiled: May 1, 2009Publication date: March 4, 2010Applicant: Cheil Industries Inc.Inventors: Young-Mi Chung, Chang-Do Jung, Young-Jun Lee, Ji-Won Pack, Young-Chul Kwon, Hyung-Tak Lee, Jin-Kyung Cho
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Publication number: 20090306287Abstract: The present invention relates to a polylactic acid resin composition. The composition includes about 25 to about 80 parts by weight of a polylactic acid resin, (B) about 20 to about 75 parts by weight of a polycarbonate resin, and (C) about 0.01 to about 5 parts by weight of a chain extender including an amine group, based on about 100 parts by weight of (A)+(B). The polylactic acid resin composition of the present invention is environmentally-friendly and has excellent hydrolysis resistance and simultaneously improved mechanical strength and heat resistance, and accordingly can be used for manufacturing various molded products requiring heat resistance and mechanical strength, for example vehicles, machine parts, electronic parts, office machines, miscellaneous goods, and the like.Type: ApplicationFiled: June 5, 2009Publication date: December 10, 2009Applicant: Cheil Industries Inc.Inventors: Young-Mi CHUNG, Chang-Do JUNG