Samsung Sdi Co., Inc.

Samsung Mobile Display Co., Ltd.

Sk Innovation Co., Ltd.

Samsung Led Co., Ltd.

Tae Seung Kim

Chang Ho Kang

Sung Real Son

In Hyoup Song

Suk Joon Hong

Yoon Jae Yim

Seon Hee Kim

Yong Weon Jang

Jong Woo Lee

Ho Seok Lee

Dae Ho Lim

Sang Hye Shin

Kyung Han Kim

Hyung Wook Kim

The present invention provides a method for preparing anhydrosugar alcohol, in which the reaction temperature in a vacuum reaction that converts sugar alcohol into anhydrosugar alcohol is controlled to two steps of temperature that is, a first-step low reaction temperature of 100 to 150&#xb0; C. and a second-step high reaction temperature of 151 to 240&#xb0; C., so that the selectivity for the intermediate product 1,4-sorbitan can be increased, thereby increasing the yield of anhydrosugar alcohol.

Method of preparing anhydrosugar alcohol by two-step reaction

The present invention relates to a method for producing anhydrosugar alcohol using an organic additive having one hydroxyl group. The present invention makes it possible to prevent oligomers and polymers from being produced by polymerization of isosorbide during dehydration of sorbitol molecules, and thus solves problems, including a reduction in fluidity in a dehydration reactor, interference with the flow of fluids in the reactor and pipelines, and interference with stirrer operation, which occur due to the oligomers and polymers.

Method of preparing anhydrosugar alcohol using additive for prohibiting polymerization by dehydration

Disclosed are an organic light emitting display and a fabricating method of the same, which improve impact resistance and sealing property of a device using a reinforcing member besides a sealant. A first substrate includes a pixel region and a non-pixel region, at least one organic light emitting diode is formed at the pixel region and has a first electrode, an organic layer, and a second electrode, and the non-pixel region is formed at a peripheral portion of the pixel region. A second substrate is bonded to one region of the first substrate having the pixel region. A frit is disposed between the non-pixel region of the first substrate and the second substrate for adhering the first and second substrates to each other. An adhesive being coated to be spaced along a peripheral region of the frit, and including at least two discontinuous portions. A reinforcing member is disposed between the frit and the adhesive.

Organic light emitting display and fabricating method of the same

A device to fix a substrate for a thin film sputter, includes a mask, a mask pressing plate, a magnetic body, and a driving unit. The mask having patterns is positioned under the substrate so as to form the patterns on the substrate. The mask pressing plate is positioned over the substrate and moves toward and contacts a back surface of the substrate at a predetermined pressure. The magnetic body is placed over the mask pressing plate and moves toward the mask pressing plate so as to have the mask adhere closely to the substrate by a magnetic force of the magnetic body. The driving unit applies a driving force to move the magnetic body. Where the mask pressing plate descends, the mask pressing plate adheres closely to the substrate. Thereafter, the magnetic body descends toward the back surface of the substrate which is supported by the mask pressing plate. The mask underneath the substrate adheres closely to a front surface of the substrate by the magnetic force of the magnetic body. Accordingly, since the substrate is multi-step supported, the alignment of the mask underneath the substrate is not dislocated.

Device for fixing substrate for thin film sputter and method of fixing substrate using the same

A mask frame assembly for evaporation includes a mask and a frame which supports the mask. The mask includes a metal layer having a predetermined pattern, and a coating layer which is formed on a surface of the metal layer so as to increase a precision of the predetermined pattern and a surface roughness of the mask.

Method of manufacturing a mask for evaporation

A dual-type organic EL device and a method of manufacturing the same. The dual-type organic electroluminescent display (EL) device includes a main organic EL display panel having a main substrate and a main organic EL portion formed on the main substrate, a sub organic EL display panel having a sub substrate and a sub organic EL portion formed on the sub substrate, and a sealing member sealing the main substrate and the sub substrate to each other, wherein the main organic EL portion and the sub organic EL portion are hermetically sealed facing each other.

Dual-type organic electroluminescent display device and method for manufacturing the same

An organic electroluminescent display (EL) device which can prevent damage to layers due to a deposition mask in forming a light emitter layer or cathode using a deposition mask, and can prevent the short-circuit between a first electrode formed on a transparent substrate and a second electrode corresponding to the first electrode and can prevent deterioration of layer characteristics, and a method of manufacturing the same. The organic EL device includes a substrate made of a transparent material, a first electrode unit having a plurality of electrodes formed on the substrate in a predetermined pattern, a second electrode unit having a plurality of electrodes arranged in a direction crossing the first electrode unit, an electroluminescent layer disposed between the first electrode unit and the second electrode unit and configured to cover at least the first electrode unit and to emit light at the intersection of the first and second electrode units, inter-insulators positioned under the electroluminescent layer so as to cover at least spaces of each of the respective electrodes of the first electrode unit, and configured to define the first electrode unit as a plurality of light emitting areas and to prevent the short-circuit between the first electrode unit and the second electrode unit, and insulating walls positioned on at least one of the top and bottom surfaces of the inter-insulators.

Organic electroluminescent device

A dual-type organic EL display including: a main organic EL device including a main substrate, strip-shaped main substrate scan lines, a main substrate organic light-emitting portion, and main substrate data lines formed on the main substrate; a sub organic EL device opposite to and facing the main organic EL device, including a sub substrate, strip-shaped sub substrate scan lines, a sub substrate organic light-emitting portion, and sub substrate data lines formed on the sub substrate; a sealant including a conductive spacer, sealing the main and sub substrates and hermetically sealing the main and sub substrate organic light-emitting portions in a state in which the main and sub organic El devices face each other; and at least one flexible printed cable (FPC) formed on the main or sub substrate and connected to electrode lines of the main and/or sub substrates.

Dual-type organic electroluminescence display and manufacturing method thereof

A mask frame assembly includes a frame having an opening and a mask having at least two unit mask elements. Both ends of each unit mask element are fixed to the frame in a state of tension. The unit mask elements include a unit masking pattern, and overlap each other on a predetermined width to form a single mask pattern block. Each unit mask element has a recessed wall in an overlapping portion thereof so as to maintain the thickness of the mask constant at an overlap between the unit mask elements. Accordingly, the mask frame assembly reduces distortion in an evaporation pattern due to an increase in the size of a mask pattern, facilitates the adjustment of a total pitch of evaporation patterns, and prevents evaporation from occurring at undesired positions.

Mask and mask frame assembly for evaporation

An organic electroluminescent device and a method of manufacturing the same are provided. The organic electroluminescent device includes: a transparent substrate; a first electrode layer including a series of first electrode lines formed on the top surface of the substrate as a predetermined pattern and connected to first electrode pad portions at opposite edges of the substrate; an organic layer formed as a predetermined pattern on the first electrode lines; a second electrode layer including a series of second electrode lines formed on the substrate, on which the first electrode lines and the organic layer are formed, as a predetermined pattern to be insulated from the first electrode lines and connected to second electrode pad portions at the other edges of the substrate; a cap bonded to the substrate using a sealant to seal the organic layer within its inner sealing space; and a barrier portion which blocks the flow of the sealant on the substrate inwards or outwards the sealing space.

Growing community of inventors

Busan, South Korea

Tae Seung Kim