Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:

iF SOCIAL IMPACT PRIZE (free of charge)

Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

KEEP IN TOUCH / Technology


Apply Persistence of Vision to show
the words and image what is user
want to express.

Sometimes we can't communication
to each other.

This product can write down in the air
,and get our life to be fun not boring.


DAYEH University

DAYEH University
Changhua, Taiwan

Yang-Jyun Chen,Yu-Tung Wu,Yi-Ting Huang,Shu-Jyun Jiang