3-dimensional image display apparatus and method of providing expanded viewing window
AssigneeSamsung Electronics Co., Ltd.
InventorsWontaek Seo, Geeyoung Sung, Sunil Kim, Bongsu Shin, Changkun Lee, Hongseok Lee
Life of this patent
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Abstract
A three-dimensional (3D) image display apparatus is provided. The apparatus includes a plurality of light sources; a spatial light modulator configured to modulate light from the plurality of light sources according to 3D image information; and a focusing optical system configured to focus an image formed by the spatial light modulator onto a focal plane. The plurality of light sources may be arranged such that multiple focal points, respectively corresponding to the plurality of light sources, are formed on the focal plane near a pupil of a user.
Claims19
A three-dimensional (3D) image display apparatus comprising:
- a plurality of light sources arranged to form a respective plurality of focal points on a focal plane;
- a spatial light modulator configured to modulate light from the plurality of light sources according to 3D image information;
- a focusing optical system configured to focus an image formed by the spatial light modulator on the focal plane;
- a beam steering device configured to adjust a position of the at least one of the respective plurality of focal points, the beam steering device provided between the focusing optical system and the focal plane;
- and
- a processor configured to select a driving light source, of the plurality of light sources, based on a pupil position of an observer and a position of a focal point of the driving light source, to drive the driving light source, and to control a modulation signal applied to the spatial light modulator, the position of the focal point of the driving light source being closest to the pupil position of the observer among positions of the plurality of focal points.
A three-dimensional (3D) image display apparatus comprising:
- a plurality of light sources arranged to form a respective plurality of focal points on a focal plane;
- a spatial light modulator configured to modulate light from the plurality of light sources according to 3D image information;
- a focusing optical system configured to focus an image formed by the spatial light modulator on the focal plane;
- a beam steering device configured to adjust a position of the at least one of the respective plurality of focal points, the beam steering device provided between the focusing optical system and the focal plane;
- and
- a processor configured to select a driving light source, of the plurality of light sources, to drive the driving light source, and to control a modulation signal applied to the spatial light modulator,
- wherein the processor is configured to drive the plurality of light sources sequentially, such that the plurality of light sources blink and form the respective plurality of focal points on the focal plane, and to select the driving light source, from among the plurality of light sources, that forms a focal point closest to a pupil position of a user.
A three-dimensional (3D) image display method comprising:
- selectively driving a plurality of light sources, modulating light from the plurality of light sources according to 3D image information, and focusing the light, by a focusing optical system, thereby forming a respective plurality of focal points on a focal plane;
- selecting, as a driving light source, a light source that forms a focal point closest to a pupil position of a user from among the plurality of light sources;
- adjusting a position of the at least one of the respective plurality of focal points by a beam steering device provided between the focusing optical system and the focal plane;
- and
- displaying a 3D image using light of the driving light source by controlling the driving light source to be in an ON state and controlling one or more light sources of the plurality of light sources which are not the driving light source to be in an OFF state.
Dependencies are inferred from the claim text.