| 摘要 |
A portable electronic device having a projection-type display unit and the projection-type display unit are provided to prevent the deterioration of the entire performance caused by the overload of a main control unit by enabling a video control unit to perform various correction of an outputted image, thereby improving processing/outputting speed and miniaturizing the size of the terminal. A portable electronic device comprises a main control unit and a projection-type display unit. The main control unit outputs a video data display instruction including video data information according to user's selection to the projection-type display unit. The projection-type display unit projects an optical signal corresponding to the video data display instruction to realize a 2D(Second-Dimensional) image. The projection-type display unit comprises a light source system(210), a one-dimensional light modulator(230), a scanner(250), and a video control unit(280). The light source system radiates successively light according to a light source control signal. The one-dimensional light modulator modulates the successively inputted light to generate a one-dimensional line image, an optical signal, when a light modulator control signal is inputted. The scanner scans the optical signal in bi-directions when a scanner control signal is inputted and projects the optical signal to realize the 2D image. The video control unit outputs individually the light source control signal, the light modulator control signal, and the scanner control signal corresponding to the video data display instruction to the light source system, the light modulator, and the scanner when the video data display instruction is inputted from the main control unit.
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