3Dis Co., Ltd.

Sun-Joo Jang

A 3-dimensional image display device having wide viewing angles using Fresnel lenses is disclosed. According to an embodiment of the invention, the 3-dimensional image display device includes an image source providing part for providing an image source, a first Fresnel lens refracting and transmitting the image source that is incident from the image source providing part, and a second Fresnel lens for generating a 3-dimensional image by refracting and transmitting the image source transmitted from the first Fresnel lens. At least one of the first Fresnel lens and the second Fresnel lens is a curved type Fresnel lens surface. The present invention can maximize the display area for a 3-dimensional image and realize the 3-dimensional image having wide viewing angles without distortion on the left and right boundaries.

Real image display device with wide viewing angle

The present invention relates to a 3-dimensional video display device using a single image source for background image and object image display, which uses a double Fresnel lens structure, multi-reflector, and half mirror part. In particular, the present invention relates to a 3-dimensional image device with which the problem in prior art of spatial size in obtaining a background image is resolved, and with which a background image of a large display and a 3-dimensional image having an enhanced sense of depth and a large image are displayed simultaneously using only a single image source.

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Seoul, South Korea

Sun-Joo Jang