| 摘要 |
PURPOSE:To provide an enlarged virtual image three-dimensional display device whose constitution is simple as a virtual image three-dimensional display device. CONSTITUTION:A parallax barrier 3 is arranged in front of or at the rear of one liquid crystal panel 2, and a lens 4 is arranged ahead of the barrier 3. In relation among the barrier pitch l1 of the barrier 3, an eye-to-eye distance (a), virtual image picture element pitch l2, a lens focal distance (f), magnification (m) and an air conversion distance L, l1=2a.l2[(f/m)+L]/f(a+l2) holds. |
