source:Other information release time:2023-06-02 Hits: Popular:PCB Assembly company
Because the LED display is based on LEDs, its light, electrical special, and limit parameters are the same as that of emitting diode. However, because the LED display contains multiple light -emitting diode, special parameters are required:
1. Light ratio ratio
Because the digital tube segments are different in the same driving voltage, each section is different in the current, so the emitting intensity of each section is different. The ratio of the maximum value to the light value of all segments to the minimum value is the ratio of light. The ratio can be in 1.5 to 2.3, and the maximum cannot exceed 2.5.
2. Pulse positive current
If the typical positive direct current working current of the stroke display is IF, under the pulse, the forward current can be far greater than if. The smaller the pulse occupation ratio, the larger the pulse can be larger.
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