AUTO STEREOSCOPIC DISPLAY DEVICE Russian patent published in 2015 - IPC G02B27/22 

FIELD: physics.

SUBSTANCE: display device contains a display panel with the array of display pixels and the array of elongated lenses, lens structure for forwarding of output signal from various pixels into various spatial positions to make possible viewing the stereoscopic image. The lens structure contains electrically switched layer of a liquid crystal, which sets a lens image or lens replicated image. Orientational regularity of liquid crystal from the layer of liquid crystal is electrically switched so, that the lens structure is switched between two-dimensional and three-dimensional modes. In the two-dimensional mode the orientational regularity of the liquid crystal is aligned in the first direction, actually, in the plane of lens structure, and in the three-dimensional mode the orientational regularity of the liquid crystal is aligned in the second, perpendicular direction, also actually in the plane of lens structure. Output light of the display panel is polarized in the second direction for two-dimensional and three-dimensional modes, meanwhile in the two-dimensional mode the optical axis of the switched layer of the liquid crystal is oriented perpendicular to lenses.

EFFECT: maintaining perpendicularity between output light of the display panel and the direction of the orientational regularity of the liquid crystal for two perpendicular planes of observation.

10 cl, 7 dwg