What is the difference between LCD and LED technology?

Two things that are not the same, one is liquid crystal display technology and the other is light-emitting diodes.

What you understand should be the LED display that is very hot now,LED TV,Both are LCD displays It's just that the hyped LED TV uses LED backlight,I used to use CCFL cold cathode fluorescent lamp backlight,It's just this one thing and the backlight is just a device that provides a light source,It has nothing to do with the display,There is not much difference in the visual effect of these two backlights,Business hype is to fool the public,Many consumers in China like this,Profiteers hype what to follow the blind coaxing, I don't know how to pretend to understand and still talk nonsense, say how much better, anyone who understands technology understands what's going on, LCD before profiteers frantically hyped PDP, said how good it was, and kept silent about his shortcomings, now PDP is doomed, and profiteers have no longer hype his value, and they change hands to fry LED backlight, but many consumers who were deeply poisoned at that time still felt that PDP was so good and stuck to their own views.

LED backlight LCD also has a lot of technical defects,It's not so good,After everyone understands, the value of the hype will be lost,Merchants will look for other gimmicks,Looking at the TV market From the previous CRT hype rear projection,Pure flat and other concepts,And then to the crazy hype plasma concept in the PDP period,LCD came out and threw PDP aside and began to promote the concept of liquid crystal,Every concept is so fresh and high-tech in ordinary people,Because they don't understand,If you don't understand, there is a mystery, There is blind listening, and now the concept of LED has begun to be hyped again, and it sounds so high-tech Oh, there are generally English abbreviations for many people are so high-end, which shows that many people's basic common sense and scientific literacy need to be improved, these things do not need much professional technology, now the network is so developed, you can know what is going on with a little search.

I am an engineer of an LCD manufacturing company, I can't understand these things, I am most disgusted with the profiteers S&B-style hype to fool the public, LED backlight has advantages and disadvantages, the manufacturing cost of the same screen LED backlight is lower than that of CCFL, but the price is much higher, there is no way for companies to make money, profiteers also want to make money, this is also a contradiction, where does the money come from? From the pockets of consumers, those who buy things want to spend less money to buy good things, and sell them as much as they can, which is why there is so much hype.

The screen of the same size and the same technical indicators has different backlights, if the price difference is more than 10%, I will choose to buy CCFL backlight.

LCD liquid crystal displays, LEDs are light-emitting diodes.

First, the principle is different.

1. LCD is to display the screen on the backlight plate, and it needs to be closed by the LCD unit.

2. The LED is a lattice light, and the two principles are different, resulting in different production processes, but it is difficult to say which of the two is more advanced.

Second, the clarity is different.

The screen resolution of LED can be higher than that of LCD, so that its clarity will be higher, and the more obvious difference is reflected in the mobile phone, because the pixel density of most LCD materials is lower than that of LED.

Third, the performance is different.

The color performance and response speed of the LCD screen are slower than those of LEDs, and LEDs can make the color display more accurate, and the reaction speed is faster, and the operation will be more sensitive.

Fourth, ** different.

The LCD screen is usually cheaper than LED, because its car manufacturing cost is lower, and the LED screen is higher, and the experience brought by the medium fibrillation is better.

Fifth, the applicable scenarios are different.

1. The LCD screen is suitable for occasions with low requirements for clarity and a display area of less than 10 square meters.

2. The LED screen is suitable for occasions with high display effect requirements and very accurate color requirements.

The above content refers to Encyclopedia-lcd

Encyclopedia - led display.

I don't know if you're talking about the display screen of the TV,If it's a TV, the difference is (you search for the display principle of LCD first,It's inconvenient to type on a mobile phone),LED TV uses LED backlight,LCD uses an ordinary backlight similar to energy-saving lamps,Everything else is the same except for the backlight。 Of course, the former is slightly better than the latter.

The mobile phone LED display usually refers to OLED, the display principle and LCD have an essential difference, LCD itself does not emit light, through the filter to achieve colorful, and OLED itself can emit three primary colors of light to achieve colorful.

At present, OLEDThe technology of large screen is not mature,Therefore, the TV screen still uses LCD technology,Only the LED with higher luminous efficiency is used as the backlight,And the small screen OLED has begun to be applied,For example, Samsung mobile phoneI9000。

The color of the LED is better! More energy efficient.

The brightness and color of the LCD are not as bright as the LED display! The degree of protection for the eyes is also different, it is better to spend a few hundred more than to buy an LED display!