Patent ID: 7030420

Claim:
A swing-type display device for displaying, when swung, an image in a trajectory of the swing, by utilizing persistence of vision, comprising: a linear array of first light-emitting elements, capable of emitting light in a predetermined color, the linear array extending in a direction substantially perpendicular to the direction of the swing; a linear array of second light-emitting elements, capable of emitting light in a color which is different from the predetermined color, the first light-emitting elements and the second light-emitting elements being arranged in pairs of two, such that each second light-emitting element is disposed near a corresponding one of the first light-emitting elements; and a control section which activates each of the first and second light-emitting elements, for a predetermined period, to emit light in a luminance level in accordance with image data, thereby displaying an image, corresponding to the image data, in the trajectory of the swing, the displayed image appearing as a mixed color formed from the predetermined color of the emitted light from the first light-emitting elements and the color of the emitted light from the second light-emitting elements.