Three-dimensional holographic display using active shutter
AssigneesSamsung Electronics Co., Ltd., Chungbuk National University Industry-Academic Cooperation Foundation
InventorsHoon Song, Yoon-sun Choi, Hong-seok Lee, Jae-hyeung Park
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Abstract
A three-dimensional holographic image display device and a method using the same are provided. Light corresponding to left and right eye holograms is emitted according to a time division method and divided into a first path and a second path. Active shutters operate substantially in synchronization with the emitted left and right eye holograms to provide images to a user's left and right eyes.
Claims21
A three-dimensional holographic image display device comprising:
- a spatial light modulator (SLM) configured to display holograms for a left and a right eye;
- a reproducing light source configured to irradiate light for reproducing an image onto the SLM;
- a lens unit configured to reproduce an image by converting light emitted from the hologram displayed on the SLM;
- a beam dividing unit configured to divide light incident from the reproducing lens unit so as to proceed along a first path and a second path;
- a right eye active shutter disposed in a light path between the beam dividing unit and the right eye and substantially synchronized with the SLM to transmit or block light;
- and
- a left eye active shutter disposed in a light path between the beam dividing unit and the left eye and substantially synchronized with the SLM to transmit or block light.
A method of displaying a three-dimensional holography image, the method comprising:
- displaying holograms for a left and a right eye on a spatial light modulator (SLM) according to a time division method;
- irradiating light for reproducing an image onto the SLM;
- reproducing an image by converting light emitted from the hologram displayed on the SLM;
- dividing a path of the converted light into a first path and a second path;
- and
- controlling a shutter to regulate transmitting and blocking of light directed to the left and right eye substantially in synchronization with the holograms displayed on the SLM according to the time division method.
A three-dimensional holographic image display device comprising:
- a light source;
- a modulator configured to display a plurality of holographic images by emitting light irradiated from the light source;
- a beam splitter configured to divide the light emitted from the modulator into a plurality of directions;
- a control unit configured to transmit data regarding the plurality of holographic images to the modulator, to control a left eye active shutter to transmit or block incident light from the beam splitter, and to control a right eye active shutter to transmit or block incident light from the beam splitter.
Dependencies are inferred from the claim text.