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When people use existing roll blind, people are confused about which string has to be pulled to raise screen.
When pulling a string to raise screen and it comes down, people get irritated.
A concept solves the problem by changing plastic beads of the existing blind string to the shapes of arrows.
When pulling down a string with an arrow indicating downside, screen goes down.
When pulling down a string with an arrow indicating upside, screen goes up.
Beads with arrows also can tell direction not only visually but also tactually so the visually impaired person also can use easily.
Dong-Eui Institute of Technology
Busanjin-Gu, Busan, South Korea
Sasang-Gu, Busan, South Korea
Design Center Busan
Haeundae-gu, Busan, South Korea
Wonkook Lee Soyoung Park