Samsung Display Co., Ltd.

Sungkyunkwan University

Min Sang Kim

Oh June Kwon

Doo Hwan Kim

Seung Wook Kwon

Hyo Jeong Kwon

Woo Yong Sung

Doo Sung Lee

Jin Hee Jeon

Seung Yong Song

Chan Ho Moon

Won Je Cho

Il Sang Lee

Bong Sup Kim

Je Sun You

Huynh Dai Phu

You Han Bae

Minh Khanh Nguyen

Woo Sun Shim

A display device includes a substrate having a display area, in which an image is displayed, and a non-display area, in which no image is displayed. The non-display area is disposed on at least one side of the display area. A plurality of pixels is disposed in the display area. An encapsulation layer is disposed on the plurality of pixels. A dam unit is disposed in the non-display area. The dam unit includes a body part and a plurality of protrusions. Each of the plurality of protrusions protrudes from the body part.

Display device with structure for preventing organic material overflow

A display device includes a substrate having a display area, in which an image is displayed, and a non-display area, in which no image is displayed. The non-display area is disposed on at least one side of the display area. A plurality of pixels is disposed in the display area. An encapsulation layer is disposed on the plurality of pixels. Adam unit is disposed in the non-display area. The dam unit includes a body part and a plurality of protrusions. Each of the plurality of protrusions protrudes from the body part.

A display device includes a flexible substrate including a bending area corresponding to an area at which the display device is bent, and a first area and a second area which is spaced apart from the first area by the bending area, a display element unit disposed in the first area of the flexible substrate; and a buffer member disposed in the bending area of the flexible substrate. The buffer member in the bending area includes: a first buffer member having a first maximum thickness, and a second buffer member having a second maximum thickness which is smaller than the first maximum thickness. Among the first buffer member and the second member, the first buffer member disposed closer to the first area and the second member disposed closer to the second area.

Flexible display device

A display device includes: a substrate including a display region and a bent region provided at a side of the display region; a first insulating layer provided on the bent region of the substrate; a second insulating layer provided on the first insulating layer, the second insulating layer including at least one opening; and a third insulating layer provided on the second insulating layer and the at least one opening, and a pixel unit to display an image is provided on the display region of the substrate.

Display device

A display device includes a substrate which includes a pixel region and a peripheral region which is provided on at least one side of the pixel region, a plurality of pixels provided in the pixel region, a passivation layer that disposed on the substrate, a light emitting element disposed on the passivation layer and which emits light, and a sealing member which covers the light emitting element. The sealing member includes a first inorganic layer disposed on the light emitting element, a lens portion disposed on the first inorganic layer and which extracts light which is emitted from the light emitting element, an organic layer disposed on the lens portion, and a second inorganic layer disposed on the organic layer.

The present document relates to a manufacturing method for pH-sensitive graft polymer micelles and a polymer micelle-type pharmaceutical composition containing the graft copolymer. The pH-sensitive graft copolymer micelles are usable as various markers and contrast agents for various molecular images for the diagnosis and treatment of diseases and a carrier for delivery of various medicines according to disease. The pH-sensitive graft copolymer forms micelles that can be used in target-oriented diagnosis and medicine release according to changes in the pH of a body. The polymer micelles are provided by inducing a graft copolymer of poly (&#x3b2;-amino ester) compounds which has a solubility in water depending on pH but is incapable of forming the micelles due to a self-assembly phenomenon, and hydrophilic poly(ethylene glycol) compounds.

PH-sensitive graft copolymer, manufacturing method for same, and polymer micelles using method

Disclosed is a block copolymer formed by coupling the following components with each other: (a) a copolymer (A) of a polyethylene glycol (PEG) type compound with a biodegradable polymer; and (b) at least one oligomer (B) selected from the group consisting of poly(&#x3b2;-amino ester) and poly(amido amine). A method for preparing the same block copolymer, and a polymeric hydrogel type drug composition comprising the temperature and pH-sensitive block copolymer and a physiologically active substance that can be encapsulated with the block copolymer are also disclosed. The multiblock copolymer is obtained by copolymerization of a pH-sensitive poly(&#x3b2;-amino ester) and/or poly(amido amine) type oligomer, a hydrophilic and temperature-sensitive polyethylene glycol type compound and a hydrophobic and biodegradable polymer. Therefore, the block copolymer can form a polymeric hydrogel structure due to its amphiphilicity resulting from the combination of a hydrophilic group and a hydrophobic group in the copolymer and ionization characteristics depending on pH variations, and thus can be used as a drug carrier for target-directed drug delivery depending on pH variations in the body.

Temperature and pH sensitive block copolymer and polymeric hydrogels using the same

Disclosed is a pH-sensitive block copolymer obtained by copolymerization of: (a) a polyethylene glycol compound (A); and (b) at least one poly(amino acid) compound selected from the group consisting of a poly(&#x3b2;-amino ester) and poly(amido amine) or a copolymer thereof (B). A method for preparing the same block copolymer, and a polymer micelle type drug composition comprising the pH-sensitive block copolymer and a physiologically active substance that can be encapsulated with the block copolymer are also disclosed. The pH-sensitive block copolymer is obtained by polymerization of a hydrophilic polyethylene glycol compound with a pH-sensitive biodegradable poly(amino acid) compound. Therefore, the pH-sensitive block copolymer can form a micelle structure due to its amphiphilicity and ionization characteristics depending on pH variations, and thus can be used as drug carrier for target-directed drug delivery depending on pH variations in the body.

pH sensitive block copolymer and polymeric micelle using the same

The present invention relates to a block copolymer formed by coupling the following components with each other, as well as a hydrogel composition comprising the block copolymer and a hydrogel formed from the composition: (a) a copolymer of a polyethylene glycol (PEG)-based compound with a biodegradable polymer; and (b) a sulfonamide-based oligomer. The inventive block copolymer shows the sol-gel transition behavior sensitive to changes in not only temperature but also pH. Thus, the inventive block copolymer overcomes the shortcomings of temperature-sensitive copolymers, form a more strong and stable hydrogel, and is stable in vivo. Accordingly, the inventive block copolymer can be used in various applications in the medical and drug delivery fields.

Growing community of inventors

Suwon-si, South Korea

Min Sang Kim