| 摘要 |
A dot-matrix LED display device has an LED array with a dot matrix of LEDs, a matrix driver unit for driving the LEDs, and a control unit for controlling the matrix driver unit. The display device has a data storage unit for storing brightness-corrected data prepared according to the characteristic brightness of each of the LEDs, selects the brightness-corrected data stored in the data storage unit according to externally provided display data, and drives the LEDs according to the selected brightness-corrected data. This arrangement minimizes brightness difference among the LEDs due to fluctuations in the characteristics of the LEDs.
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