2D/3D image switching display device

A 2D/3D image switching display device, comprising:

• an image display unit, for displaying a planar image and a stereo image;
• an image switching unit, coupled to a surface of the image display unit surface, and including:
• a first substrate;
• a third substrate, including a plurality of third conducting elements and fourth conducting elements alternately arranged with an interval apart from each other on a surface of the first substrate, and another surface of the third substrate being provided for coupling with the image display unit surface;
• and
• an electrochromic unit, installed between the conducting elements, and including a first electrochromic layer and a second electrochromic layer arranged alternately with an interval apart from each other on the same side of the electrochromic unit, and the other side of the first electrochromic layer being provided for coupling with the third conducting element, and the other side of the second electrochromic layer being provided for coupling the fourth conducting element, such that the electrochromic layers produce a color change according to an electric conduction of the conducting elements.