POSTECH Develops Smart Window that Enables Users to Adjust Brightness | Be Korea-savvy

POSTECH Develops Smart Window that Enables Users to Adjust Brightness

(image: Pixabay)

(image: Pixabay)

POHANG, Oct. 21 (Korea Bizwire)The Pohang University of Science and Technology (POSTECH) has developed a smart window that enables users to freely adjust the amount of sunlight penetration even at a low voltage.

POSTECH said Thursday that the newly-developed smart window allows users to adjust the degree of brightness.

When you are dazzled by the sunlight entering through a transparent window or the light reflecting from windows from opposite buildings, you can reduce the inconvenience by lowering the amount of penetration.

Existing smart windows using polymer scattering or particle scattering methods require a high voltage of about 100V when operating at a lowered transparency.

These types of smart windows are difficult to fabricate in large sizes and have a slow response speed.

The newly-developed smart window has a driving voltage of 20V, which is 80 percent lower than existing smart windows, and features a high response speed of 12 milliseconds.

In addition, it can maintain transparency without scattering and is compatible with various display environments.

M. H. Lee (

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