Korea Institute of Machinery & Materials

Taik-min Lee

Dong-Youn Shin

Dong-Soo Kim

Seung-hyun Lee

Byung-Oh Choi

Cheol-hoon Park

Dong-Woo Kang

Jeong-Dai Jo

Sin Kwon

Chung-Hwan Kim

Kye-hee Woo

Yun-seok Jang

Dong-ha Song

A stereoscopic pattern apparatus includes a base roller and a retrieving roller, a fine pattern hardening roller, an ink inserting roller and a convex pattern hardening roller. The base roller and the retrieving roller respectively provide and retrieve a base film. The fine pattern hardening roller is disposed between the base and retrieving rollers, and forms a lower hardening layer on the base film. A fine pattern is formed on the lower hardening layer. The ink inserting roller is disposed between the fine pattern hardening roller and the retrieving roller, and inserts an ink into the fine pattern. The convex pattern hardening roller is disposed between the ink inserting roller and the retrieving roller, and forms an upper hardening layer on the lower hardening layer. A convex lens is uniformly formed on the upper hardening layer.

Three dimensional pattern printing device and method for manufacturing micro-optical film structure by using same

A roller module includes a roller, a magnetic bearing, a permanent magnet, at least one pair of magnetic coring, and a plurality of gap sensors. The roller has a protrusion and has a cylindrical shape. The protrusion is formed at both outer surfaces of the roller with a stepped portion and has the cylindrical shape. The magnetic bearing is formed at the roller. The permanent magnet is formed at the roller. At least one pair of magnetic coring covers an outer circumference of the protrusion. The gap sensors are formed along an axial direction and a radial direction of the roller.

Roller module with magnetic bearings and permanent magnets

The present invention relates to a luminous advertisement sheet. The luminous advertisement sheet includes a light-transmitting print sheet having an EL advertisement region formed in at least one area of the print sheet, and a general advertisement region formed in the other area thereof. The EL advertisement region has at least one of a fixed pattern portion in which a transparent electrode layer, an EL layer and a dielectric layer are sequentially laminated and a variable pattern portion in which a transparent electrode layer, an EL layer, a dielectric layer and a plurality of pixel electrode layers are sequentially laminated. The general advertisement region allows general dye printing to be performed therein. The luminous advertisement sheet further includes a pattern electrode layer laminated and printed with a conductive ink material to have a predetermined luminous pattern in at least one area of the dielectric layer laminated in the fixed pattern portion and/or the variable pattern portion. Accordingly, there are provided a luminous advertisement sheet that exhibits excellent advertisement effects and can be easily produced in a multi-line small-batch production manner and at remarkably reduced manufacturing costs, and a method of manufacturing the same.

Luminous advertisement sheet

Provided is a method for forming a micropattern using a mask template. The method includes: forming a mask template on a substrate, wherein the mask template has an exposure section through which a portion of the substrate is exposed to the exterior and a non-exposure section provided by a polymer material applied on the remaining portion of the substrate; supplying conductive ink to the top of the mask template to deposit the conductive ink on the non-exposure section and on the substrate exposed through the exposure section; and heat treating the conductive ink in order to extract the conductive ink nanoclusters dissolved or dispersed in the conductive ink, wherein the conductive ink nanoclusters disposed on the non-exposure section are bound to the non-exposure section to form an insulating pattern having electrical insulating property, while the conductive ink nanoclusters disposed on the substrate form a conductive pattern having electroconductive property. The method enables formation of a micropattern without any alignment error between patterns in the case of a direct printing process.

Method for making fine patterns using mask template

Disclosed is a method for fabricating fine conductive patterns using a surface modified mask template, the method including: depositing a high molecular substance on a substrate; applying a hydrophobic material onto the high molecular substance so that the hydrophobic material can infiltrate into the high molecular substance; forming a mask template by removing a part of the high molecular substance to form a recess where a region of the substrate is exposed to an outside; depositing conductive ink on the mask template; and performing annealing to abstract metal particles from a metallic compound dissolved in the conductive ink so that an insulating pattern can be formed in a region on which the high molecular substance is deposited, but a conductive pattern can be formed as the metal particles are abstracted from the conductive ink in the recess and cohere with each other.

Growing community of inventors

Daejeon, South Korea

Taik-min Lee