Korea Institute of Machinery & Materials

Changwon National University Industry Academy Cooperation Corps

Taik Min Lee

In Young Kim

Dong Woo Kang

Seung-hyun Lee

Jeong Dai Jo

Young Man Choi

Dong-Soo Kim

Kwang-Young Kim

Jeongdai Jo

Dong Soo Kim

Byung-Oh Choi

Dongwoo Kang

Chung Hwan Kim

Young Tae Cho

Byung Oh Choi

Sin Kwon

Dong Youn Shin

Doo Sun Choi

Deokkyun Yoon

Tae Jin Jae

Kyung Hyun Hwang

Deok Kyun Yoon

Provided is a printing apparatus including: a printing roller whose outer circumferential surface is coated with ink; a clich&#xe9; roller which rotates in engagement with the printing roller and forms first patterns on the printing roller by removing portions of the ink coated on the outer circumferential surface of the printing roller and on which second patterns which are the removed portions of the ink are formed; a first transfer substrate onto which the first patterns of the printing roller are transferred; and a second transfer substrate onto which the second patterns of the clich&#xe9; roller are transferred. The printing apparatus can reduce the time required for a product production process by omitting a clich&#xe9; cleaning process.

Printing apparatus and method of operating the same

A method of measuring feeding velocity of a web, on which a scale having pitches different from pitches of a mask are formed, is provided. The method includes: calculating a number of vibrations of a moir&#xe9; image of light passing through the mask and the scale; calculating pitches of the scale of the fed web based on the calculated number of vibrations of the moir&#xe9; image; averaging the pitches of the scale so that a change in a pitch between adjacent timings among the calculated pitches of the scale is minimized; extracting first signals corresponding to our phases for one pitch based on the averaged pitches of the scale; calculating two second signals for forming a Lissajous circle from the first signals; and calculating an angle of the Lissajous circle by the two second signals and then calculating the feeding velocity of the web by using the calculated angle.

Apparatus and method of measuring web feeding velocity by using single field encoder

A printing apparatus for measuring and compensating for a synchronization error is provided. The printing apparatus includes: a rotating part configured to include a roll of which the surface is made of a flexible material and a motor rotating the roll; a support part having a substrate disposed on an upper portion thereof to support the substrate and formed to relatively move in a direction parallel with a tangential direction of the rotating part and the roll; a printing pressure part formed to provide adhesion and printing pressure of the roll to the substrate by changing an interval between the rotating part and the support part; and a compensation unit configured to include a sensor unit which is disposed on a lower portion of the substrate to measure forces which are applied between the roll and the substrate at a contact position between the roll and the substrate and a control unit which performs a control to compensate for the synchronization error by using values of forces measured by the sensor unit.

Printing apparatus and method for measuring and compensating for synchronization error

Provided is an integrated coating system. An integrated coating system according to an exemplary embodiment of the present invention includes: a unwinding means provided with a roll to supply a web; a worktable roll configured to support the web supplied from the unwinding means; a plurality of printing means configured to perform printing or coating on the web supplied from the unwinding means; a plurality of curing means each of which is modulated to cure a printing material on the web passing through at least one printing means; and a winding means around which the web, of which printing or coating work is completed by passing through the curing means, is wound in a roll shape.

Integrated coating system

The present invention relates to a method for burying a conductive mesh in a transparent electrode, and more particularly, to a method which prevents a conductive mesh from protruding from a transparent electrode by burying the conductive mesh in the transparent electrode.

Method for burying conductive mesh in transparent electrode

Disclosed are a reverse gravure offset printing method and apparatus using a disposable cliche, which do not require cleaning of the cliche and do not require a large quantity of high-definition cliches because the cliche used in reverse gravure offset printing can be discarded after used once or several times and replaced with a new one, thereby achieving cost reduction.

Reverse gravure offset printing method and apparatus using disposable cliche

The present invention relates to a clich&#xe9;, and it particularly relates to a clich&#xe9; with a partition formed thereon for controlling a blanket and the partition to be parallel with each other by the partition when a partition is protrusively formed on the clich&#xe9; and the blanket is not combined with the clich&#xe9; according to a predetermined method, controlling functional ink disposed between the blanket and the clich&#xe9; to be transferred while not spreading so that it may be transferred to a substrate in a shape to be patterned when the blanket does not contact the clich&#xe9;, and an electronic printing device and method using the same.

Clich&#xe9; for electronic printing device, and electronic printing method and device using the same

The present invention relates to a reverse offset printing method, and more particularly, to a reverse offset printing method in a partial off type capable of accurately transferring a pattern to a cliche to achieve more precise minute printing by separately performing removal for each shear region of a functional ink even though the pattern is minute.

Reverse offset printing method using plural partial off

A printing apparatus having an automatic printing sheet feeder integrated thereto to improve mass productivity. The printing apparatus includes a base, a moving stage, an automatic printing sheet feeder, and a printing roll. The moving stage is linearly movable along the base, and has a lithographic plate seated on the top surface thereof, the lithographic plate having a printing pattern thereon. The automatic printing sheet feeder is installed on the moving stage. The automatic printing sheet feeder includes an unwinding roll, which supplies the printing sheet, a rewinding roll, which collects the printing sheet, and a plurality of guide rolls, which guide the printing sheet to pass through the printing area of the moving stage. The printing roll is installed on the base, and performs printing by transferring ink from recesses of a printing pattern of the lithographic plate to the printing sheet on the moving stage.

Printing apparatus having automatic printing sheet feeder

The present invention relates to a method of enlarging a travel of a piezoelectric sensor and a MEMS switch employing an enlarging means employing the leverage theory. In accordance with the present invention, there is provided a MEMS switch capable of using a relatively low voltage, less than 5V, lowering power consumption isolation and insertion loss, and having application to a wide range of wireless communication systems such as PCS and wireless LAN.

Growing community of inventors

Daejeon, South Korea

Taik Min Lee