Dongwoo Fine Chemical Co.

Pyeongtaek, South Korea

Dongwoo Fine Chemical Co.

Pyeongtaek, South Korea

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Patent
DONGWOO FINE Chemical CO. | Date: 2016-09-01

An adhesive composition includes an acryl copolymer having a hydroxyl group and a weight average molecular weight of 800,000 to 1,500,000 g/mol; an isocyanate-based cross-linking agent, an aliphatic hydrocarbon solvent having 6 to 10 carbon atoms, and an acid additive having a molecular weight of 40 to 100 g/mol, thus low viscosity characteristics may be maintained for a long period of time, and thereby stirring and coating may be easily performed while it does not require an excess of diluted solvent.


Patent
DONGWOO FINE Chemical CO. | Date: 2016-08-31

An adhesive composition includes an acryl copolymer having a carboxyl group, and a silane compound represented by Formula 1 or 2, thereby it is possible to exhibit excellent initial adhesiveness and adhesive durability under severe conditions, and prevent the substrate from being torn due to a decrease in adhesiveness by water applied thereto, and the adhesive from remaining on the substrate during peeling-off the adhesive layer, as well as after drying, the adhesive layer may exhibit favorable adhesiveness again, thus being used for re-bonding.


Patent
DONGWOO FINE Chemical CO. | Date: 2016-02-05

A retarder-integrated touch-sensing electrode includes at least one sensing pattern formed on at least one surface of a retarder, wherein the difference in refractive index between the retarder and the sensing pattern disposed on the one surface of the retarder is about 0.8 or less. Accordingly, the retarder-integrated touch-sensing electrode implements a thin-film structure and has excellent visibility.


Patent
DONGWOO FINE Chemical CO. | Date: 2016-03-30

A composite polarizing plate includes a polarizing plate having a polarization coating layer formed on one surface thereof, a retardation coating layer, and a photo-curable adhesive layer installed between the polarizing plate and the retardation coating layer, such that a display device having a thinner thickness and lighter weight may be implemented, and cracks may be reduced due to excellent flexibility, thereby the composite polarizing plate may be applied to a flexible display device.


Patent
DONGWOO FINE Chemical CO. | Date: 2016-07-05

A hard coating film satisfies the static frictional coefficient of 0.4 or less between an upper surface of a hard coating layer and a back surface of a substrate film, such that it is possible to achieve the hard coating film capable of suppressing a protrusion damage and having excellent anti-blocking properties while providing excellent transparency and hardness, as well as a polarizing plate including the hard coating film, and an image display device including the polarizing plate.


Patent
DONGWOO FINE Chemical CO. | Date: 2016-03-26

A flexible touch panel having a bending region which is bendable and a flat region, includes: a plurality of first unit conductive patterns formed in the flat region; and a plurality of second unit conductive patterns formed in the bending region, and the second unit conductive pattern has a smaller width than the first unit conductive pattern.


Patent
DONGWOO FINE Chemical CO. | Date: 2016-03-26

A touch panel includes a bending region which is at least one region which is bendable in the touch panel based on an axis; a flat region which is a region which is not bendable in the touch panel; a first unit conductive pattern formed in the flat region and configured to sense a touch; and a second unit conductive pattern formed in the bending region and configured to sense the touch. A dimension of the second unit conductive pattern is smaller than that of the first unit conductive pattern due to an opening portion formed in the second unit conductive pattern.


Patent
DONGWOO FINE Chemical CO. | Date: 2016-03-08

An infrared transmission photosensitive resin composition includes (A) a pigment dispersion composition including a coloring agent (a1); (B) an alkaline soluble resin; (C) a photo-polymerizable compound; (D) a photo-polymerization initiator; and (E) a solvent, wherein the coloring agent (a1) includes a blue pigment, a red pigment and a yellow pigment. Thereby, the infrared transmission photosensitive resin composition may form an infrared transmission pixel which exhibits a high transmittance in an infrared region while having a very low transmittance in a visible light region, so as to be used in an image sensor for obtaining an image having excellent image quality at a place where the quantity of light is insufficient.


Patent
Dongwoo Fine Chemical Co. | Date: 2016-06-01

Provided is an adhesive composition whose initial adhesive strength (A) and adhesive strength at increased temperature (B) satisfy a ratio (B/A) of 2.0 or lower, wherein the initial adhesive strength (A) is measured through a peeling test after a sample is left for 24 hours at 23C and 50% relative humidity (RH), and the adhesive strength at increased temperature (B) is measured through a peeling test after a sample is left for 48 hours at 50C and 50% RH;the sample is prepared by laminating an adhesive-attached polarizing plate having a size of 25mm100mm on a glass substrate at a pressure of 0.25 MPa and treating the laminate in an autoclave, the adhesive being formed from the adhesive composition; andthe peeling test is performed by peeling the adhesive from the glass substrate at a peeling rate of 300 mm/min and a peeling angle of 180 using a universal testing machine (UTM). The adhesive composition of the present invention can have excellent adhesive durability under strict conditions (high temperature or high temperature and humidity) and have excellent reworkability without the excessive increase of an adhesive strength under the strict conditions.


The present invention provides an etchant composition for a TiN layer including (A) at least one compound selected from sulfuric acid and alkyl sulfonic acid in 75% by weight to 95% by weight, (B) a peroxide in 0.3% by weight to 10% by weight, (C) an inorganic ammonium salt in 0.0001% by weight to 3% by weight, and (D) water in a residual quantity, and a method for forming a metal wire using the etchant composition.

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