OPTICAL ASSEMBLY AND AUTOSTEREOSCOPIC DISPLAY DEVICE BASED THEREON Russian patent published in 2014 - IPC G02B27/22 H04N13/04 

FIELD: physics.

SUBSTANCE: display device has a display panel for forming an autostereoscopic image, having at least two sub-images, each representing a different view of the object, and an optical assembly in front of an imaging means. The optical assembly has a lens mould, having an array of positive lenticular lenses, each having a first layer and a second layer. The boundary between the layers forms the surface of the lenticular lens. The first layer has a first refraction index and the second layer has a second refraction index different from the first refraction index. The lens array has a lens spacing. The surfaces of the lenticular lenses have a curvature radius at their centre. The product of the first refraction index and the lens spacing, divided by two times the curvature radius is greater than 0.6. The magnitude of the difference between the first and second refraction indices ranges from 0.05 to 0.15.

EFFECT: reduced image banding, reduced interference from daylight and reduced dependency of the autostereoscopic effect on the viewing angle.

13 cl, 22 dwg