Patent ID: 7884987

Claim:
A scanning display device comprising: a first scan mirror group including a plurality of scan mirrors for scanning a light signal in a horizontal direction; and a second scan mirror group including a plurality of scan mirrors for scanning the light signal scanned by the first scan mirror group in a vertical direction, wherein a single scan mirror from among the first scan mirror group has a drive frequency equal to a horizontal synchronous frequency of an image to be scanned, and the remaining scan mirrors from the first scan mirror group have drive frequencies, each of which corresponds to an odd multiple of the horizontal synchronous frequency, wherein the remaining scan mirrors of the first scan mirror group are different from each other in the drive frequency, wherein a single scan mirror from among the second scan mirror group has a drive frequency equal to a vertical synchronous frequency of an image to be scanned, and the remaining scan mirrors from the second scan mirror group have drive frequencies, each of which corresponds to an odd multiple of the vertical synchronous frequency, wherein the remaining scan mirrors of the second scan mirror group are different from each other in the drive frequency, and wherein the first and second scan mirror groups include a first scan mirror and a second mirror wherein the second scan mirror scans the light signal reflected directly from the first scan mirror, respectively, the first and second scan mirrors are arranged to be adjacent to each other, and driven by a rotating shaft having the same direction, and the drive frequency of the second scan mirror to be an odd multiple of that of the first scan mirror.