Imagine watching a 3D movie on your smart phone and suddenly getting a headache or even feeling nauseous. Such viewer discomfort is one of the biggest obstacles preventing widespread application of 3D display technology – especially for portable devices whose slim design poses an extra challenge.
Now researchers at the Sun Yan-Sen University, China have developed a new display with comfortable 3D visual effects. The device is based on a "super multi-view technique" which works to reduce viewer discomfort. It also greatly decreases the required number of microdisplays, which makes a compact design possible. The researchers describe their device in a paper in the journal Optics Express, from The Optical Society (OSA).
"There are many causes for 3D-viewing discomfort, but the most substantial one is the vergence-accomodation conflict," said Lilin Liu, author and an associate professor of the State Key Lab of Optoelectronics Materials and Technology, Sun Yat-Sen University, China. She explained that vergence-accomodation conflict is a mismatch between the point at which the eyes converge on an image and the distance to which they focus when viewing 3D images.
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