Minuta Technology Co., Ltd.

Yonsei University

Dahl Young Khang

Hong Hie Lee

Byong Joo Lee

A manufacturing method of an LED display is disclosed. The method includes picking up a plurality of LED chips spaced apart at a first interval with a stretchable stamp, spacing apart the plurality of LED chips at a second interval by stretching the stretchable stamp, and transferring the plurality of LED chips to a target substrate.

Manufacturing method of LED display

A mold for use in forming a target patterning on a substrate by using a pattern formed at one side of the mold is made of amorphous fluorine resin. The mold is fabricated through a compression molding technique by using a master mold () with a pattern structure thereon facing the pattern.

Mold made of amorphous fluorine resin and fabrication method thereof

In a method for forming a micro-pattern on a substrate ( ), polymer material having a solvent is coated on the substrate, thereby forming a polymer film on the substrate. Then, a mold ( ) having a predetermined shape is compressed into the polymer film ( ) on the substrate by employing a predetermined compression technique to entail a plastic deformation of the polymer film, thereby patterning the polymer film. This compression procedure is performed at a room temperature, e.g., of about 10 to about 30&deg; C. In the present invention, before the mold ( ) is pressed into the polymer film ( ), a free volume in the polymer film is previously increased so that a pressure applied on the polymer material needed to plastically deform the polymer film is reduced. Thereafter, etching is performed on the substrate through the use of the patterned polymer film as an etching mask, thereby forming a micro-pattern on the substrate.

Growing community of inventors

Seoul, South Korea

Dahl Young Khang