It is now in pursuit of a treat, dazzling product on the market, often confusing endless, for example, the difference between the common lcd with LED's, people feel very confused, today I come to you and explain lcd led differences and their respective characteristics.
It is now in pursuit of a treat, television, computers and other essential equipment is valued by people, whether spiritual or material on, dazzled the product on the market, often confusing endless, for example, the difference between the common lcd with LED's, people feel very confused, today I come to you to explain the difference between lcd and led as well as their respective characteristics.
Principle of LCD and LED
LCD Liquid Crystal Display is short, which is constructed mainly of liquid crystal placed between two sheets of glass were parallel, in the middle of the two parallel sheets of glass which has many fine vertical and horizontal wires, or not to control the rod by energization Crystal molecules change direction, will produce light reflecting screen.
LED is short for light-emitting diode, minority carriers it works in certain semiconductor materials, PN junction, infusion and majority carrier recombination, when will the excess energy released in the form of light, thereby The direct conversion of electrical energy into light energy; PN junction exchange voltage, minority carrier injection is difficult, not light. This use of injection electroluminescent diodes called the principle of making light-emitting diode, which is what we commonly known as the LED.
Conclusion: LCD and LED the biggest difference is the application of two different display technologies, LCD is composed of liquid crystal display, and the LED is a light-emitting diode display; the main difference here is derived from a variety is out of the analysis.
The difference between LCD and LED
First, the brightness, the reaction rate individual elements LED display is 1000 times the LCD screen, the brightness of the LCD screen is also relatively more advantageous, LED screen in bright light you can not stop watching, and adapt low temperature of minus 40 degrees.
Second, power consumption, power consumption is the people most concerned about a little, LED power consumption compared with LCD, the ratio is about 10: 1, in this regard, LED has a great advantage.
Third, the viewing angle, LCD displays large angle limit, this is a very lively vexing problem, so long as deviation angle is slightly larger, can not see the original color, and even see anything; and LED can provide to achieve angle of 160 °, a great advantage.
Fourth, the refresh rate, LED use electrical energy into light, the use of injection principle, and thus its higher refresh rate, then the screen better handling.
Fifth, contrast, now it is known more high-contrast LCD display is 350: 1, but in many cases, unable to meet a variety of needs, but the LED display are able to reach higher, wider use.
Sixth, the appearance, LED use light-emitting diodes based on relatively LCD, its display can do thinner.
Seventh, the use of, the scope of application of LED display wider than the LCD display, it can display a variety of text, numbers, color images and animation information, can also play TV, video, VCD, DVD and other color video signal, the more important It is that you can use multiple displays networked broadcast.
Eighth, life, LED display generally support about 100,000 hours, under normal circumstances, it can be used for decades, but LCD has been far less.
Ninth, color, LED screen to be more real than the color LCD screen, this is because the color gamut than LCD LED TV a lot.