The LED has a part of the heart. This commonly known heart is a semiconductor wafer, with one side of the wafer placed on a support.
This chip has two poles in total. The first stage needs to be installed on the negative pole, and the other end needs to be installed with the positive pole connected to the power supply.
The entire wafer can be encapsulated by an epoxy resin.
P-type semiconductors, mainly in the main position of the semiconductor wafer, the N-type semiconductor is mainly an electron, and the two semiconductors constitute
The main part of the semiconductor wafer, when the two P-type and N-type semiconductors are connected, the two types of semiconductors will
Formed a "PN junction."
After we connect the semiconductor wafer to a power supply through a certain wire, the wafer inside the semiconductor is pushed to the P-type semiconductor.
The electrons in the semiconductor will be combined with the N-type semiconductor electrons, and then the energy will be emitted in the form of luminescence and heat generation.
The basic principle of LED lighting.
Regarding the color of light, that is, the wavelength of light we have heard, the color or wavelength of this light is determined by the material of a PN-type semiconductor.
Certainly, we can control the display mode of the semiconductor's light-emitting diodes, which can be used to display what we want to display, such as:
Display of various information such as words, graphics, images, animations, quotes, videos, video signals, numbers, etc., which are not only easy to control, but also low
Pressure DC drive, and a combination of rich color performance, long service life and other advantages, is widely used in various projects in the city
, advertising, large-screen displays, etc., LED as a display screen, under the control of our computer, can display different changes
Graphics and videos, text, and more. Http://
To summarize, LED is a semiconductor that converts our electrical energy into our visible light.
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