What's the difference between LCD and led
Author:Sharon Time:2021-07-19 14:41 Browse(154)
LCD projector is the product of the combination of LCD display technology and projection technology. It uses the electro-optic effect of liquid crystal to control the transmission and reflectivity of the liquid crystal unit through the circuit, so as to produce beautiful images with different gray levels and up to 16.7 million colors. The main imaging device of LCD projector is LCD board. The size of LCD projector depends on the size of LCD board. The smaller the LCD board is, the smaller the projector is.
LCD projector is the product of the combination of LCD display technology and projection technology. It uses the electro-optic effect of liquid crystal to control the transmission and reflectivity of the liquid crystal unit through the circuit, so as to produce beautiful images with different gray levels and up to 16.7 million colors. The main imaging device of LCD projector is LCD board. The size of LCD projector depends on the size of LCD board. The smaller the LCD board is, the smaller the projector will be.... LED (light emitting diode) is a kind of solid-state semiconductor device, which can directly convert electricity into light. The heart of an LED is a semiconductor chip with one end attached.. Sanfeng led. In a bracket, one end is the negative pole, and the other end is connected to the positive pole of the power supply, so that the whole chip is encapsulated by epoxy resin. The semiconductor chip is composed of two parts, one is p-type semiconductor, in which the hole is dominant, the other is n-type semiconductor, in which the electron is dominant. But when the two semiconductors are connected, a "p-n junction" is formed between them. When the current acts on the chip through the wire, the electrons will be pushed to the p region. In the p region, the electrons will compound with the holes, and then emit energy in the form of photons. This is the principle of LED luminescence. The wavelength of light determines the color of light, which is determined by the band gap of p-n junction material. 2.5m wide endurance board has been successfully installed and debugged by Zhengcheng enterprise! Greatly improve the lighting effect. The light source is different. Ordinary LCD is CCFL light source. Compared with LED, it is more environmentally friendly and energy-saving.

What's the difference between LCD and led

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