LED digital Zhongshan Tonghui photoelectric Co., Ltd. tube (LED Segment Displays) is composed of a plurality of light emitting diode package in the device with a "8" font, lead connection has been completed in the internal, only leads to their strokes, a common electrode. Digital tube is actually made up of seven luminous tubes which are composed of figure 8, the decimal point is 8. These sections are respectively by the letters a, B, C, D, e, F, G, DP to indicate.
Following is a brief introduction of digital tube:
When the digital tube specific segment with the voltage on, these specific section will shine, to form our eyes to see the words. Such as: display a "2" word, so should be a bright B light G light e light D light does not light C f DP is not bright not bright. LED digital tube is generally light and ultra light different points, there are 0.5 inch, 1 inch of different sizes. The small size of digital tube display strokes used a light emitting diodes, and the large size of the digital tube is composed of two or a plurality of light emitting diodes, under normal circumstances, the tube voltage drop of single light emitting diode is about 1.8V, the current is not more than 30mA. The anode of the light emitting diode is connected to the positive pole of the power supply are connected together called Yang digital tube, cathode luminescence diode connected to the negative pole of the power supply are connected together are called common cathode led. The commonly used LED digital tube display numbers and characters are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.