Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Jungha Chae

Kyeong-Sik Ju

Chanjae Ahn

Sun Jin Song

A Ra Jo

Byung Hee Sohn

Hyunjeong Jeon

Boreum Jeong

Sang Soo Jee

Dmitry Androsov

Hana Kim

Fedosya Kalinina

Sungwon Choi

Won Suk Chang

Woo-Jin Bae

Sungwoo Hong

Byungha Park

Hyeyoung Kong

Inki Kim

Kyeongsik Ju

Seoung Jin Seo

Woncheol Jung

A poly(amide-imide) copolymer that is a reaction product of a diamine represented by Chemical Formula 1, a diamine represented by Chemical Formula 2, a dicarbonyl compound represented by Chemical Formula 3, and a tetracarboxylic acid dianhydride represented by Chemical Formula 4, a composition for preparing the poly(amide-imide copolymer, and an article including the copolymer, e.g., a film are provided:

Poly(amide-imide) copolymer, composition for preparing same, article including same, and display device including the article

Disclosed are a laminated film including a light transmitting substrate; a hard coating layer; and an optical enhancement layer disposed between the light transmitting substrate and the hard coating layer or at a position facing the hard coating layer with the light transmitting substrate therebetween, wherein the light transmitting substrate includes a polyimide, a poly(amide-imide) copolymer, or a combination thereof, and the optical enhancement layer includes a copolymer comprising a polyimide, and a display device including the laminated film.

Laminated film, and display device including same

Laminated film and display device including same

Disclosed are a composition comprising a silane compound having a fluorine-containing (poly)ether group represented by Formula 1, a film formed from the composition, a display device including the film, and an article including a coating product of the composition:Rf-(L)(L)-C(&#x2550;O)NR-(L)-Si(R)(R)(R)&#x2003;&#x2003; Formula 1

Silane compound including fluorine-containing (poly)ether group, composition including the same, film formed from the composition, display device comprising the film, and article comprising the composition

A laminated film including a first film; and a second film disposed on the first film, wherein a tensile modulus of the second film is greater than or equal to a tensile modulus of the first film, and a transmittance of the first film is greater than or equal to a transmittance of the second film, provided that at least one of the tensile modulus of the first film and the tensile modulus of the second film are not equal or the transmittance of the first film and the transmittance of the second film are not equal.

A polyimide film having tensile modulus of greater than or equal to about 5 gigapascals, and yellowness index of less than 2.5, when measured at a thickness of the film between 50 micrometers to 100 micrometers, wherein the polyimide film is a reaction product of a combination including an aromatic dianhydride and an aromatic diamine, wherein the aromatic dianhydride includes 4,4'-oxydiphthalic anhydride.

Polyimide film, composition for preparing polyimide film, and display device including polyimide film

A poly(amide-imide) copolymer film having a tensile modulus of greater than or equal to 5.4 GPa, and a yellowness index of less than or equal to 3.6, wherein the poly(amide-imide) copolymer film is a reaction product of an aromatic dianhydride including biphenyl tetracarboxylic dianhydride and 4,4'-hexafluoroisopropylidene diphthalic dianhydride, an aliphatic dianhydride including 1,2,3,4-cyclobutane tetracarboxylic dianhydride, an aromatic diamine including 2,2-bis(trifluoromethyl) benzidine, and an aromatic dicarbonyl compound including terephthaloyl dichloride.

Poly(amide-imide) copolymer film, window for display device, and display device

A poly(amide-imide) copolymer including a reaction product of at least one tetracarboxylic acid dianhydride, at least one diamine, and at least one dicarboxylic acid derivative, wherein the at least one tetracarboxylic acid dianhydride includes a tetracarboxylic acid dianhydride represented by Chemical Formula 1, the at least one diamine includes a diamine represented by Chemical Formula 2, and the at least one dicarboxylic acid derivative includes a dicarboxylic acid derivative represented by Chemical Formula 3: 

Poly(amide-imide) copolymer, article including poly(amide-imide) copolymer, and display device including the same

A composition for preparing a polyimide including a tetracarboxylic dianhydride mixture including a tetracarboxylic dianhydride represented by Chemical Formula 1A, Chemical Formula 1B, or a combination thereof, a tetracarboxylic dianhydride represented by Chemical Formula 2, and a diamine represented by Chemical Formula 3: NH&#x2014;R&#x2014;NH&#x2003;&#x2003;Chemical Formula 3

Composition for preparing polyimide, polyimide, and article including same

A window for a display device including a plastic substrate having yield strain of greater than or equal to about 0.8% at about 85 degrees Celsius and 85% relative humidity and a hard coating layer disposed on at least one side of the plastic substrate.

Window for display device and display device including the window

A composition for preparing a polyimide-inorganic particle composite including a reaction product of a tetracarboxylic dianhydride mixture and a diamine, and a precursor of an inorganic particle, wherein the tetracarboxylic dianhydride mixture includes a tetracarboxylic dianhydride represented by Chemical Formula 1, and a tetracarboxylic dianhydride represented by Chemical Formula 2, and wherein the diamine is represented by Chemical Formula 3: 

Composition of preparing polyimide-inorganic particle composite, polyimide-inorganic particle composite, and article including polyimide-inorganic particle composite

Growing community of inventors

Yongin-si, South Korea

Jungha Chae