Lg Chem, Ltd

Bum Woo Lee

Sang Choll Han

Jin Suk Song

Sang Ki Chun

Byung Mook Kim

Dongmyung Shin

Sung Hak Bae

An asymmetric transmission film including a body having a first surface and a second surface opposite to the first surface and a transmittance control member disposed in the body such that a forward transmittance of light passing in a direction from the first surface toward the second surface and a reverse transmittance of light passing in a direction from the second surface toward the first surface are different from each other.

Asymmetric transmission film

The present invention relates to a system and a method of removing a foreign material by using an electric field adsorbing scheme, which are capable of easily adsorbing and removing a foreign material on a surface of a film by using an electric field adsorbing scheme through a micro-current (several micro ampere) voltage driving method, not a surface treatment method, such as plasma discharge processing, corona discharge processing, and air blowing processing, which causes damage to the surface of the film, in a processing process for removing the foreign material on the surface of the film, and particularly, which exclude high pressure discharge processing and the like, thereby decreasing an incurrence rate of a safety accident of an operator and preventing a surface of a film from being scratched.

System and method for removing foreign substances by using electric field adsorption method

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Daejeon, South Korea

Bum Woo Lee