For the first time a new and energy efficient 3D display technology, the polarized single-chip 3D projection display system using laser sources of narrow line width, has been applied in a 3D movie in an experiment on Saturday, responding to the Science and Technology Week.
3D projection display system using laser sources / Image by YANG Fugui
The display system is developed by Prof. Minghai, the director of Photonics Technology Institute in USTC. Prof. Minghai said that the laser device used in this system is an exclusive one with a quite narrow band spectrum and is easily to integrated, so it can be very energy efficient, which makes it significantly different from the mix laser light source applied in existing display system. Besides that, laser makes the color of the movie more vivid. In addition to these, being integrated with the new and cheap polarized single-chip 3D projection display technology results in less light energy loss than in traditional polarized 3D display technology.
In the room where the new 3D film was displayed, many children gathered, wearing polarized glasses and exciting expression. Of course some of them have once watched 3D films and been wondering all the time how the picture can be so close to them, and it is in USTC that they got the answer, and even more: what they got in touch with, although simple and crude in form, is totally a new one by nature.
3D projected image / Image by YANG Fugui
Although the polarized single-chip 3D projection display technology has been a patent in 1940s in American, the polarized single-chip 3D projection display system using laser sources of narrow line width is yet a new thing. And its energy efficiency is going to be indispensable for 3D display in future.
(LI Jie, School of Physical Sciences)