Hyundai Motor Company

Lg Chem, Ltd

Kia Motors Corporation

Hanwha Solutions Corporation

Korea University Research and Business Foundation

Kia Corporation

Doosan Enerbility Co., Ltd.

Hanwha Chemical Corporation

Lg Energy Solution, Ltd.

Youngjin Kim

Dae Hee Lee

Kyuho Song

JinYoung Yang

Kyun Do Park

Ji Young Kim

Woo Young Lee

Do Hyun Kim

Jin Myeong Yang

Sihun Yang

Namjin Jang

Sunghak Bae

Yong Kim

Sang-Hun Lee

Jun Ho Kim

Sangcholl Han

Jongpil Kim

Byung Mook Kim

Inyong Yeo

Wook Jeong

Jiyeon Kim

Jinho Park

Seung Kyu Park

Hyun Seo

Taejong Ha

Jeongseok Park

Seonghoon Hyeong

Dae Woo Lee

Han Min Seo

Jae Eun Cha

Hyoungsuk Lee

Jung Hong Joo

JongPil Kim

Kyungki Hong

Juhwan Shin

Sung Wook Jeon

Jihan Lee

Byunggu Kang

Dong Min Nho

Jeong-Hwan Koh

Do Ki Chang

Taekyeong Lee

Namhoon Heo

Chayeon Seo

Bhomri Kim

A polarizing plate laminate according to an exemplary embodiment of the present disclosure includes: a polarizing plate; a first adhesive layer and a first separate film which are provided on one surface of the polarizing plate; and a second adhesive layer and a second separate film which are provided on the other surface of the polarizing plate, in which the second separate film has a total thickness of more than 75 μm and 150 μm or less.

Polarizing plate laminate and method for preparing same

Provided is a method of manufacturing a viewing angle compensation film, comprising the steps of preparing a base and forming a pattern layer on the base, wherein the pattern layer comprises a first surface comprising a flat surface and a second surface opposite to the first surface; the second surface comprises multiple protruding portions, each of the protruding portions includes a first inclined surface and a second inclined surface, and the angle θ formed by the first inclined surface and the second inclined surface is 20° to 60°. Also provided are a method of manufacturing a polarizing plate by using a viewing angle compensation film manufactured by the manufacturing method, a viewing angle compensation film, a polarizing plate, and a display device including same.

Method for manufacturing viewing angle compensation film, method for manufacturing polarizing plate, viewing angle compensation film, polarizing plate, and display device including same

The present invention relates to a laurolactam preparation method and synthesis apparatus, and epoxidation and a rearrangement reaction are performed in the conversion of cyclododecene into cyclododecanone so that the preparation method can synthesize laurolactam having a higher purity with a higher selectivity and in a higher yield than a conventional preparation method.

Laurolactam preparation method and synthesis apparatus

A charging device may include a Power Factor Correction (PFC) circuit including first to third inductors connected to each of first to third input terminals, and first to third switch legs connected to each of the first to third inductors; and a relay network including a plurality of relays. When the first input terminal, the second input terminal and the third input terminal are connected to each phase of three-phase powers, the relay network connects each phase of the three-phase powers to the corresponding one among the first switch leg, the second switch leg, and the third switch leg, and the PFC circuit is operated as a three-phase boost PFC, when a single-phase power is connected to one among the first input terminal, the second input terminal and the third input terminal, the relay network connects the single-phase power to the first and second switch leg, connects the third switch leg to the neutral point, and the PFC circuit is operated as an interleaved single-phase full-bridge PFC of single inductor type.

Charging device

A synthesis method and a synthesis device of cyclododecene according to the present invention have a high conversion rate of cyclododecatriene which is a reactant and a high selectivity of cyclododecene which is a required product, and even so, have an effect of significantly decreasing a reaction time. In addition, the method and the device have an excellent conversion rate of cyclododecatriene and an excellent selectivity of cyclododecene, while maintaining excellent reactivity without an organic solvent such as ethanol. Therefore, a volume of the reactor relative to an output of cyclododecene may be further decreased. Moreover, the method and the device may minimize costs for facilities and process, are practical, decrease a process time, and are industrially advantageous for mass production as compared with the conventional art.

Synthesis method and synthesis device for cyclododecene

The present specification relates to a viewing angle compensation film, a polarizing plate including the same, and a display device including the same, and the viewing angle compensation film includes: a pattern layer; and a low refractive layer, in which a difference in refractive index between the pattern layer and the low refractive layer is 0.02 to 0.4, the pattern layer includes: a first surface which comprises a flat surface; and a second surface which faces the first surface and includes multiple protruding portions, each of the protruding portions includes a first inclined surface and a second inclined surface, an angle &#x3b8;between the first surface and the first inclined surface or a surface extending from the first inclined surface and an angle &#x3b8;between the first surface and the second inclined surface or a surface extending from the second inclined surface are different from each other, and an angle &#x3b8; between the first inclined surface or the surface extending from the first inclined surface and the second inclined surface or the surface extending from the second inclined surface is 20&#xb0; to 60&#xb0;, such that there is an effect of improving a contrast ratio and a viewing angle.

Viewing angle compensation film, polarizing plate comprising same, and display device comprising same

A method for preparing cyclododecene and a synthesis device therefor, of the present invention, remarkably increase the conversion ratio of cyclododecatriene and selectivity of cyclododecene, can minimize the costs required for equipment and processing, are practical, reduce processing time, and are industrially advantageous to mass production in comparison with a conventional method and device.

Method for preparing cyclododecene and synthesis device therefor

The present specification relates to a film for compensating for a viewing angle, which comprises a base substrate; a pattern layer; and an optical layer, and in which the pattern layer has a first surface comprising a flat surface and a second surface facing the first surface, and the second surface comprises a plurality of protrusions comprising a curved surface, thereby improving a contrast ratio and a viewing angle and decreasing a color band phenomenon, and a polarizing plate comprising the same, and a display device comprising the same.

Viewing angle compensation film, polarizing plate including same, and display device including same

The present invention pertains to a method for recovering a selective homogeneous hydrogenation catalyst and a method for reusing the recovered selective homogeneous hydrogenation catalyst. The method for recovering a selective homogeneous hydrogenation catalyst comprises: a step for synthesizing cyclododecene by selectively hydrogenating a first reaction solution containing cyclododecatriene, triphenylphosphine, formaldehyde, and ruthenium chloride, wherein a selective homogeneous hydrogenation catalyst is prepared during the selective hydrogenation reaction from the triphenylphosphine, formaldehyde, and ruthenium chloride to synthesize the cyclododecene; and a step for distilling and separating unreacted cyclododecatriene and cyclododecadiene, as well as the product cyclododecene, from a second reaction solution in which the cyclododecene synthesis has been completed, and recovering the selective homogeneous hydrogenation catalyst.

Methods for recovering and reusing selective homogeneous hydrogenation catalyst

The polarizing plate laminate according to an exemplary embodiment of the present disclosure includes: a polarizer; an adhesive agent layer or a bonding agent layer provided on the polarizer; a viewing angle compensation film provided on the adhesive agent layer or the bonding agent layer; and a base film provided on the viewing angle compensation film.

Polarizing plate laminate and display device comprising same

The present specification provides a multi-layer liquid crystal film including: a substrate; a first alignment film comprising an alignment material and an acrylate in which a weight ratio of the alignment material to the acrylate is 3:1 to 5:1; a first liquid crystal film provided on the first alignment film; a second alignment film provided on the first liquid crystal film; and a second liquid crystal film provided on the second alignment film, and a method for manufacturing a polarizing plate, the method including: laminating the multi-layer liquid crystal film to a polarizer and peeling off the substrate.

Multilayer liquid crystal film, polarizing plate and method for preparing polarizing plate

The present specification provides a multi-layer liquid crystal film including: a substrate; a first alignment film provided on the substrate; a first liquid crystal film provided on the first alignment film; a second alignment film provided on the first liquid crystal film and comprising a multifunctional acrylate; and a second liquid crystal film provided on the second alignment film, and a method for manufacturing a polarizing plate, including: laminating the multi-layer liquid crystal film to a polarizer, and peeling off the substrate.

A direct current (DC)-DC converter is for a vehicle for converting a first voltage output of a first battery to a second voltage output of a second battery. The DC-DC converter includes a transformer, at least one switch, at least one rectifying diode, and a snubber circuit. The transformer is configured to transform the first voltage to the second voltage. The at least one switch is configured to control a first current input to the transformer from the first battery. The at least one rectifying diode is configured to rectify an alternate current (AC) output from the transformer. The snubber circuit is configured to prevent overvoltage from being applied to the at least one rectifying diode.

Vehicle and DC-DC converter for a vehicle

A vehicle charging apparatus includes: an AC/DC converter configured to variably output a DC link voltage; and a DC/DC converter electrically connected to the AC/DC converter and configured to acquire an output voltage by conversion of the DC link voltage outputted by the AC/DC converter and transmit the acquired output voltage to a battery. The AC/DC converter includes: a first switch element configured to adjust a power factor of the AC/DC converter according to an operation of the first switch element, and a second switch element configured to increase the DC link voltage outputted by the AC/DC converter according to the operation of the first switch element.

Vehicle and vehicle charging apparatus

Growing community of inventors

Daejeon, South Korea

Youngjin Kim