Stereoscopic display apparatus and stereoscopic display method

A method performed by a stereoscopic display apparatus, the method comprising:

• displaying, by a display driver of the stereoscopic display apparatus on a display of the stereoscopic display apparatus, an elemental image of a stereoscopic image, wherein a light source controller of the stereoscopic display apparatus comprises:
• a first lens array positioned on a rear surface of the display and including a plurality of first cylinder lenses arranged at a preset pitch;
• a second lens array positioned on a rear surface of the first lens array and including a plurality of condensing lenses arranged at a pitch that is wider than the preset pitch of the plurality of first cylinder lenses;
• a plurality of light sources positioned on shielding walls disposed on a rear surface of each condensing lens of the plurality of condensing lenses, each of the plurality of light sources of each condensing lens being positioned on a concentric circle spaced by a focal distance of a corresponding condensing lens, and
• a diffusion sheet positioned between the display and the first lens array at a position including a focal point of each first cylinder lens of the plurality of first cylinder lenses;
• and
• driving, by a light source driver of the stereoscopic display apparatus, the plurality of light sources illuminating the elemental image.

One or more non-transitory computer-readable storage media storing computer-executable instructions that, when executed by one or more processors of a stereoscopic display apparatus individually or collectively, cause the stereoscopic display apparatus to preform operations, the operations comprising:

• displaying, by a display driver of the stereoscopic display apparatus on a display of the stereoscopic display apparatus, an elemental image of a stereoscopic image, wherein a light source controller of the stereoscopic display apparatus comprises:
• a first lens array is positioned on a rear surface of the display and including a plurality of first cylinder lenses arranged at a preset pitch,
• a second lens array positioned on a rear surface of the first lens array and including a plurality of condensing lenses arranged at a pitch that is wider than the preset pitch of the plurality of first cylinder lenses;
• a plurality of light sources positioned on shielding walls disposed on a rear surface of each condensing lens of the plurality of condensing lenses, each of the plurality of light sources of each condensing lens being positioned on a concentric circle spaced by a focal distance of a corresponding condensing lens, and
• a diffusion sheet positioned between the display and the first lens array at a position including a focal point of each first cylinder lens;
• and
• driving, by a light source driver of the stereoscopic display apparatus, the plurality of light sources illuminating the elemental image.