Patent ID: 8350789
Filing Date: 2013-01-08
Classification: G02B,H04N

Abstract:
1. An image display apparatus, comprising: a laser light source; a beam scan portion that scans a laser beam emitted from the laser light source so that an image of one frame is formed by a continuous display of plural fields; a spatial light modulator that spatially digitally-modulates the laser beam scanned by the beam scan portion; a modulator controller that is configured to control the spatial light modulator based on an inputted video signal; a diffusing member, disposed between the beam scan portion and the spatial light modulator, that diffuses the laser beam scanned by the beam scan portion in a scan direction of the beam scan portion; and a control portion that is configured to control emitting of the laser beam from the laser light source and scanning of the beam scan portion so as to synchronize a scan timing of the beam scan portion with a light emitting timing of the laser light source, wherein the control portion controls the laser light source and the beam scan portion to cause the laser beam to reciprocate across a display region of the spatial light modulator once, as the beam scan portion scans in one cycle, so that the entire display region of the spatial light modulator is illuminated by the laser beam, wherein the control portion controls the laser light source to start the emitting of the laser beam such that the laser beam scanned by the beam scan portion illuminates one end of the display region of the spatial light modulator, and to stop the emitting of the laser beam when the laser beam scanned by the beam scan portion illuminates the one end of the display region of the spatial light modulator after reciprocating across the display region of the spatial light modulator, and wherein a scan cycle of the beam scan portion, T