| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique capable of performing simultaneous display and communication for a display device which uses an infrared LED (infrared light emitting diode). SOLUTION: AND circuits 3-1 to 3-N input display information circuit output data such that changing display information is assigned for display per pixel or non-display upon occasion while a visible state on a display is assumed from a display information circuit 1, input data communication circuit output data showing a pulse waveform of transmission concerned with infrared communication from a data communication circuit 2, and output AND results as illumination signals. Drive circuits 4-1 to 4-N make infrared light emitting diodes 5-1 to 5-N emit light with the illumination signals. COPYRIGHT: (C)2005,JPO&NCIPI
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