Patent ID: 9134700
Filing Date: 2015-09-15
Classification: G02B,G03H,G09G,H04N

Abstract:
1. A display device, comprising: a light source that outputs a laser beam; an illumination optical system that emits illumination light of the laser beam; a diffraction pattern generation unit that generates a diffraction pattern from original image data; a spatial modulation element that diffracts the illumination light by displaying the diffraction pattern; a display control unit that controls at least one of the spatial modulation element and the diffraction pattern generation unit, and a device state acquisition unit that acquires at least one of information on a remaining amount of a battery for supplying power, information on a utilization ratio of a computing unit for performing computing including generation of the diffraction pattern by the diffraction pattern generation unit, information on a utilization ratio of a storage unit for storing data, and information on a communication band of a communication unit for communicating with an external device, wherein the display control unit causes the diffraction pattern generation unit to change a size of the diffraction pattern according to the information acquired by the device state acquisition unit.