Developments of contact lens display based on holographic technique

Although a contact lens display is an ultimate AR display, it has a significant issue that eyes cannot focus on the display embedded in the contact lens as the display screen is too close to the eyes. The holographic contact lens display can address this issue using the three-dimensional (3D) image generation by holography; holograms produce 3D images at the position where eyes can focus. Compared to the other contact lens display techniques, the holographic technique provides both a thin form factor and a high-resolution image generation. The experimental verifications of the holographic technique are shown. The national project for the developments of the holographic contact lens display in Japan is also explained.