Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Hyunjeong Jeon

Sang Soo Jee

Kyeong-Sik Ju

Byunghee Sohn

Chanjae Ahn

Sungwon Choi

Sun Jin Song

Hyun Do Choi

Younsuk Choi

Boreum Jeong

Wooram Hong

Gahee Kim

Won Seok Oh

Hyukju Kwon

Jin Woo Kim

Sangyoon Lee

Jeonghun Kim

Youngjin Park

Jun-Won Jang

Jaejun Chang

Joon-Kee Cho

Taesin Ha

Byung-Kwon Choi

A Ra Jo

Min Sik Park

Dongseon Lee

Won Suk Chang

Youngchun Kwon

Jungha Chae

Min Sang Kim

Bosung Kim

Won Je Choi

Hongkyoon Choi

Hyungtae Seo

Dal Heo

Yongchul Kim

Yoon Seok Ko

Sung Woo Hong

Sungwoo Hong

Sunghyun Han

Minsu Chang

The present disclosure provides optical monitoring devices. In some embodiments, the optical monitoring device includes a heating stirrer, a floating barrel, and a support body arranged to support the floating barrel. The floating barrel includes a barrel body facing the heating stirrer and spaced apart from the heating stirrer by a gap, a cavity provided in the barrel body and configured to accommodate at least one of a vessel and a conduit, an irradiator arranged in the barrel body and configured to radiate light to the cavity, and a light receiver arranged in the barrel body, aligned with the irradiator and the cavity, and configured to receive light from the cavity.

Optical monitoring device

A poly(amide-imide) copolymer including an amide structural unit having an amide bond in a polymer main chain and an imide structural unit having an imide bond in a polymer main chain, wherein at least one imide structural unit includes a moiety cross-linked to an adjacent polymer main chain through an amide bond.

Poly(amide-imide) copolymer, method of manufacturing the same, poly(amide-imide) copolymer film, window for display device, and display device

A sealing structure may include a lid including a first lid face, a second lid face opposite to the first lid face, and a fragile area between the first lid face and the second lid face, a cover including a first cover face facing the second lid face and covering the fragile area and a second cover face opposite to the first cover face, wherein a first distance between the second lid face and the first cover face is substantially equal to or less than a second distance between the first cover face and the second cover face, and a connector configured to connect the lid and the cover.

Sealing structure and material containing device including the same

A heat exchanger is provided. The heat exchanger includes a target area that is a target for heat exchange; and a flow path structure. The flow path structure includes at least one inlet; at least one outlet; a first flow path connected to each of the at least one inlet and the at least one outlet, and extending along a first side of the target area; and a second flow path connected to each of the at least one inlet and the at least one outlet, and extending along a second side, different from the first side, of the target area.

Heat exchanger and heat exchanging system comprising the same

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

A luminescent material, including a first compound represented by Formula 1 and a second compound represented by Formula 2:[A][Cu][X]  Formula 1RRRN  Formula 2

Luminescent material, method of preparing the same, and light-emitting device including the luminescent material

Laminated film and display device including same

A composition for preparing an electro-optic material including a first polyimide having a high molecular weight, and a second polyimide having a lower molecular weight and including a structural unit including a chromophore functional group in the side chain, an electro-optic material including the composition, an electro-optic device including the electro-optic material, and a method of preparing the electro-optic material.

Composition, electro-optic material, electro-optic device, and method for preparing electro-optic material

A polyimide that is a reaction product of a diamine represented by Chemical Formula 1, a diamine represented by Chemical Formula 2, and a tetracarboxylic dianhydride represented by Chemical Formula 3: 

Polyimide, composition for preparing polyimide, article including polyimide, and display device including the article

A stacked transparent film includes a polymer film including at least one of an amide structural unit and an imide structural unit, wherein the polymer film has a refractive index of about 1.65 to about 1.75 at a 550 nanometer wavelength and an elastic modulus of greater than or equal to about 5.5 gigapascals; and at least one of a first coating layer on a first side of the polymer film and a second coating layer on a side opposite the first side of the polymer film.

Stacked transparent film and window for display device and display device

A composition including a polyamideimide precursor modified with an alkoxysilane group and an oligosilica compound, wherein the oligosilica compound is a condensation reaction product of an organosilane diol and an alkoxysilane compound.

Composition and polyamideimide composite and polyamideimide film and electronic device

A poly(imide-amide) copolymer including a structural unit represented by Chemical Formula 1; a structural unit represented by Chemical Formula 2; and any one of a structural unit represented by Chemical Formula 3, an amic acid precursor of the structural unit represented by Chemical Formula 3, and a combination thereof; wherein a cured material of the poly(imide-amide) copolymer may have a tensile modulus of greater than or equal to about 5.5 GPa, and a yellowness index of less than or equal to about 5: 

Poly(imide-amide) copolymer, a method for preparing a poly(imide-amide) copolymer, and an article including a poly(imide-amide) copolymer

A poly(imide-amide) copolymer includes: an imide structural unit which is a reaction product of a first diamine and a dianhydride, and an amide structural unit which is a reaction product of a second diamine and a diacyl halide, wherein each of the first diamine and the second diamine includes 2,2'-bis-trifluoromethyl-4,4&#x2032;-biphenyldiamine, and at least one of the first diamine and the second diamine further includes a compound represented by Chemical Formula 1, wherein the dianhydride includes 3,3&#x2032;,4,4&#x2032;-biphenyltetracarboxylic dianhydride and 4,4&#x2032;-hexafluoroisopropylidene diphthalic anhydride, wherein the diacyl halide includes terephthaloyl chloride (TPCl), and wherein an amount of the compound represented by Chemical Formula 1 is less than or equal to about 10 mole percent based on the total amount of the first diamine and the second diamine:NH-A-NH&#x2003;&#x2003;Chemical Formula 1

Poly(imide-amide) copolymer, article containing poly(imide-amide) copolymer, and electronic device including same

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Seoul, South Korea

Hyunjeong Jeon