Lg Chem, Ltd

Lg Energy Solution, Ltd.

Ji-Young Hwang

In-Seok Hwang

Dong-wook Lee

Sang-Ki Chun

Hyeon Sik Choi

Ki-Hwan Kim

Su-Jin Kim

Young-Jun Hong

Seung-Heon Lee

Beom-Mo Koo

Min-Choon Park

Yong-Koo Son

Seung-Tae Oh

Joo-Sung Lee

Won-Sik Bae

Sang-Ho Kim

Jie-Hyun Seong

Soo-Yeon Heo

Jong-Taik Lee

Kyoung-Su Jeon

Dong-Wook Lee

Sung-Joon Min

Ho-Sung Kang

Yern-Seung Kim

Je-Seob Park

Se-Jung Park

Disclosed is a method for pre-detecting a defective porous polymer substrate for a separator, including selecting a porous polymer substrate having a plurality of pores; observing the selected porous polymer substrate with a scanning electron microscope (SEM) to obtain an image of the porous polymer substrate; quantifying the average value of pore distribution index (PDI); correcting the quantified average value of pore distribution index to obtain the corrected average value of pore distribution index; determining whether or not the corrected average value of pore distribution index is 60 a.u. (arbitrary unit) or less; and classifying the porous polymer substrate as a good product, when the corrected average value of pore distribution index is determined to be 60 a.u. or less, and classifying the porous polymer substrate as a defective product, when the corrected average value of pore distribution index is determined to be larger than 60 a.u.

Method for pre-detecting defective porous polymer substrate for separator

Provided are a heating element, which includes: a transparent substance; a conductive heating line that is provided on at least one side of the transparent substance; bus bars that is electrically connected to the conductive heating line; and a power portion that is connected to the bus bars, wherein 30% or more of the entire area of the transparent substance has a conductive heating line pattern in which, when the straight line that intersects the conductive heating line is drawn, a ratio (distance distribution ratio) of standard deviation in respects to an average value of distances between adjacent intersection points of the straight line and the conductive heating line is 5% or more, and a method for manufacturing the same.

Heating element and manufacturing method thereof

Provided are a heating element, which includes: a transparent substance; a conductive heating line that is provided on at least one side of the transparent substance; bus bars that is electrically connected to the conductive heating line; and a power portion that is connected to the bus bars, wherein 30% or more of the entire area of the transparent substance has a conductive heating line pattern in which, when the straight line that intersects the conductive heating line is drawn, a ratio (distance distribution ratio) of standard deviation in respects to an average value of distances between adjacent intersection points of the straight line and the conductive heating line is 2% or more, and a method for manufacturing the same.

The present invention provides a method for manufacturing a conductive pattern, comprising the steps of: a) forming a conductive film on a substrate; b) forming an etching resist pattern on the conductive film; and c) forming a conductive pattern having a smaller line width than a width of the etching resist pattern by over-etching the conductive film by using the etching resist pattern, and a conductive pattern manufactured by using the same. According to the exemplary embodiment of the present invention, it is possible to effectively and economically provide a conductive pattern having a ultrafine line width.

Conductive pattern and manufacturing method thereof

Provided are a heating element that includes: a transparent substance; a conductive heating line that is provided on at least one side of the transparent substance; bus bars that is electrically connected to the conductive heating line; and a power portion that is connected to the bus bars, wherein 30% or more of the entire area of the transparent substance has a conductive heating line pattern that is formed of closed figures where a distribution is continuous and a ratio (area distribution ratio) of a standard deviation in respects to an average value of areas of the closed figures is 2% or more, and a method for manufacturing the same.

The present invention provides a method of manufacturing a touch screen, comprising the steps of: a) forming a conductive layer on a substrate; b) forming an etching resist pattern on the conductive layer; and c) forming a conductive pattern having a line width smaller than the line width of the etching resist pattern by over-etching the conductive layer by using the etching resist pattern and a touch screen manufactured by the method. According to the present invention, a touch screen comprising a conductive pattern having an ultrafine line width can be economically and efficiently provided.

Touch screen and manufacturing method thereof

Provided are a roll printing apparatus and a roll printing method using the same. The roll printing apparatus according to the present invention comprises 1) a first clich&#xe9; stage, 2) a second clich&#xe9; stage, 3) a pattern transfer unit provided between the first clich&#xe9; stage and the second clich&#xe9; stage and comprising a roll type printed film support unit, 4) a first printing unit comprising a first printing roll moving to the pattern transfer unit on the first clich&#xe9; stage, and 5) a second printing unit comprising a second printing roll moving the pattern transfer unit on the second clich&#xe9; stage, in which the first clich&#xe9; stage and the second clich&#xe9; stage are disposed on the same line and a film substrate is comprised in the roll type printed film support unit. The roll printing apparatus according to the present invention can perform a continuous roll printing, thereby reducing a tack time and as a result, improving productivity.

Roll-printing apparatus and roll-printing method using the same

The present invention provides: a method for manufacturing an insulated conductive pattern, wherein a conductive film and an insulation layer pattern are formed on a substrate, and the insulation layer pattern is reformed to cover a conductive pattern after formation of the conductive pattern by etching the conductive film using the insulation layer pattern as a mask; and a laminate manufactured thereby. According to the present invention, the number of processes is sharply reduced in comparison with the existing processes, and economic efficiency can be greatly improved.

Method for manufacturing insulated conductive pattern and laminate

Provided are an electrical conductor and a production method therefor; the electrical conductor comprising a transparent substrate and an electro-conductive pattern provided on at least one surface of the transparent substrate, and the electroconductive pattern being of a type such that, for at least 30% of the entire surface area of the transparent substrate, when a straight line is drawn intersecting the electroconductive pattern, the ratio of the standard deviation to the mean value of the distances between adjacent points of intersection between the straight line and the electroconductive pattern (the distance distribution ratio) is at least 2%. Also, provided are an electrical conductor and a production method therefor; the electrical conductor comprising a transparent substrate and an electroconductive pattern provided on at least one surface of the transparent substrate, and the electroconductive pattern being of a type such that at least 30% of the entire surface area of the transparent substrate is accounted for by continuously distributed closed motifs, and the ratio of the standard deviation to the mean value of the surface areas of the closed motifs (the surface area distribution ratio) is at least 2%.

Electrical conductor and a production method therefor

The present invention relates to a conductive metal ink composition which is properly applied for roll-printing process to form conductive pattern, and the method of preparing a conductive pattern using the same. The conductive metal ink composition comprises a conductive metal powder; a non-aqueous solvent comprising a first non-aqueous solvent having a vapor pressure of 3 torr or lower at 25&#xb0; C. and a second non-aqueous solvent having a vapor pressure of higher than 3 torr at 25&#xb0; C.; and a coatability improving polymer and is coated for forming the conductive pattern by the roll printing method.

Growing community of inventors

Daejeon, South Korea

Ji-Young Hwang