Patent ID: 9052516
Filing Date: 2015-06-09
Classification: G02B,G02F,H04N

Abstract:
1. A lens display device, comprising: an optical thin film layer; a polarized switch unit; and a display unit configured to emit emergent light, wherein the optical thin film layer comprises: a single-refringent film layer, and first and second liquid crystal lens arrays on the single-refringent film layer, wherein each of the first and second liquid crystal lens arrays comprises a plurality of liquid crystal lens elements arranged consecutively and with a same lens period, wherein the first and second liquid crystal lens arrays are positioned on the single-refringent film layer such that the lens elements of the first liquid crystal lens array are misaligned from the lens elements of the second liquid crystal lens array by half of the lens period, wherein a direction of the liquid crystals included in each liquid crystal lens element of the first liquid crystal lens array is perpendicular to a direction in which the emergent light is polarized in the display unit, and a direction of the liquid crystals included in each liquid crystal lens element of the second liquid crystal lens array is parallel to the direction in which the emergent light is polarized in the display unit, wherein the polarized switch unit is configured, when operative, to polarize the emergent light emitting from the display unit into ordinary light entering the first liquid crystal lens array and to polarize the emergent light emitting from the display unit into unordinary light entering the second liquid crystal lens array, and when inoperative, to polarize the emergent light emitting from the display unit into unordinary light entering the first liquid crystal lens array and to polarize the emergent light emitting from the display unit into ordinary light entering the second liquid crystal lens array.