(The LCD display on the left and the LED display on the right) The principle of LCD and LED LCD is the abbreviation of Liquid Crystal Display. Its structure is mainly to place liquid crystals in two parallel glass. There are many vertical and horizontal small wires between the two parallel glass, and the rod crystal is controlled by energization or not. The molecules change direction and refract light to produce a picture. LED is the abbreviation of light-emitting diode. Its working principle is that in some PN junctions of semiconductor materials, the injected minority carriers will recombine excess energy in the form of light when combined with majority carriers. The electric energy is directly converted into light energy; the PN junction is added with a reverse voltage, and the minority carriers are difficult to inject, and no light is emitted. The diode made by the principle of injection electroluminescence is called a light-emitting diode, which is what we call a LED. Conclusion: The biggest difference between LCD and LED is the application of two different display technologies. LCD is a display composed of liquid crystals, and LED is a display composed of light-emitting diodes. The main differences are also derived from here. Come out and analyze. (LED display is more realistic, color is better) LCD and LED difference First, the brightness, the single element of the LED display reaction speed is 1000 times that of the LCD liquid crystal screen, and its brightness is more advantageous than the LCD liquid crystal screen. The LED display screen can also be inaccurate under strong light, and adapts Low temperature of minus 40 degrees. Second, power consumption, power consumption is one of the most concerned. The power consumption of LED is about 10:1 compared with LCD. In this respect, LED has great advantages. Third, the viewing angle, the angle of the LCD display is very large, this is a very busy and troublesome problem, as long as the angle of deviation is slightly larger, you can not see the original color, and even can not see anything; and LED It can provide a viewing angle of 160°, which has great advantages. Fourth, the refresh rate, LED uses electrical energy to convert into light energy, using the injection principle, so its refresh rate is higher, and then better in the processing of video screen. Fifth, contrast, the currently known high-contrast LCD display is 350:1, but in many cases, it can not meet various needs, but the LED display can achieve higher and wider use. (The main difference between the two is different display technologies) Sixth, appearance, LED is based on light-emitting diodes, and its display can be made thinner than LCD. Seventh, the scope of use, LED display range is wider than LCD display, it can display a variety of text, digital, color images and animation information, can also play TV, video, VCD, DVD and other color video signals, more important It is possible to use a plurality of displays for networked broadcasts. Eighth, the service life, LED display can generally support about 100,000 hours, under normal circumstances, can be used for decades, and LCD is much less. Ninth, color, LED screen is more real than the color of the LCD screen, because the color gamut of LED TV is much more than LCD. Through the author's in-depth explanation of the difference between lcd and led, I believe that everyone has a deeper understanding of them, in the choice, you should not hesitate. 8K HDMI Cable, HDMI 2.1 48Gbps High Speed Nylon Braided HDMI Cord with eARC HDR10 4:4:4 HDCP 2.2&2.3, 4K HDMI Cable Compatible with Dolby Atmos Apple Fire LG Samsung TV PS5 PS4 Switch Xbox Roku.
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How to identify LCD and LED? Which one is better?
Now people are pursuing a kind of enjoyment. Whether it is spiritual or material, TV, computer and other indispensable equipment are more valued by people. The dazzling products on the market are often confusing, such as common lcd and led. The difference is very confusing, today I will explain to you the difference between lcd and led and their respective characteristics.