Shulou(Shulou.com)05/31 Report--

Hello everyone, Lin Fei to answer the above questions, what is the difference between led and LCD, the difference between led and LCD, many people do not know, now let's take a look!

Abstract: what is the difference between LCD and LED display? LED backlight: power saving (30% to 50% less than CCFL), high price, high brightness, high saturation. CCFL backlight: compared with LED backlight, it consumes electricity (or much less power than CRT) and is cheaper. Picture difference: LED backlight is brightly colored and highly saturated (CCFL and LED natural light are different). Let me tell you which is better, LCD monitor or LED monitor.

The difference between LED display screen and LCD display screen the difference between LED display screen and LCD display screen

The difference between LED display and LCD display

1. What is a liquid crystal display?

LCD is the full name of liquid crystal display. There are several types of LCD, such as TFT, UFB, TFD, STN and so on. The program input point was not found on the dynamic link library.

TFT is commonly used in notebook LCD screens. TFT (Thin Film Transistor) refers to thin-film transistors. Each liquid crystal pixel is driven by thin-film transistors integrated behind the pixels, so that screen information can be displayed at high speed, high brightness and high contrast. It is one of the best LCD color display devices at present, and it is the mainstream display device on notebook and desktop computers. Compared with STN, TFT has excellent color saturation, restoration ability and higher contrast. You can still see clearly in the sun, but the disadvantage is high power consumption and high cost.

What is LED?

LED is the abbreviation of light emitting diode. The application of LED can be divided into two categories: one is LED display screen; the other is LED single-tube application, including backlight LED, infrared LED and so on. Now, as far as LED display screen is concerned, the technical level of design and production in China is basically in step with the international level. The LED display screen is a 5000 yuan computer configuration list display device, which is composed of light emitting diodes. The low-voltage scanning driver has the characteristics of low power consumption, long life, low cost, high brightness, few faults, large viewing angle, long visual distance and so on.

III. The difference between LCD and LED display

Compared with LCD display, LED display has more advantages in brightness, power consumption, viewing angle and refresh rate. Navigation for this page has been cancelled. Using LED technology, you can make a display that is thinner, brighter and clearer than LCD.

The power consumption of 1.LED and LCD is more energy-efficient than that of about 13pr 336 and 010 LED.

The refresh rate of 2.LED is higher and the video performance is better.

3.LED provides 160visual angle, can display all kinds of text, digital, color image and animation information, and can play TV, video, VCD, DVD and other color video signals.

The single element reaction speed of the 4.LED display is 1000 times faster than that of the LCD screen and can be taken care of in strong light, so it is suitable for a low temperature of minus 40 degrees.

To put it simply, LCD and LED are two different display technologies. LCD is a display screen composed of liquid crystals, while LED is a display screen composed of light-emitting diodes.

Dear friends, now you should understand the difference between lcd and led! Then people will say that LED is so good, then I must buy LED display screen! However, the focus of this article comes: at present, the LED display screen on the market is not the real LED display screen, but the LED backlit liquid crystal display, the liquid crystal panel is still the traditional liquid crystal display screen, in a sense some fraud! South Korea's Samsung has been convicted by the British Advertising Association of violating the country's advertising law because its "LEDTV" LCD TV is suspected of misleading consumers. For LCD, the most important key is its LCD panel and backlight type, while the LCD panels of monitors on the market generally use TFT panels, which is the same. The only difference between LED and LCD is the type of backlight: LED backlight and CCFL backlight (that is, fluorescent lamps) are diodes and cold cathode lamps, respectively.

The difference between LED display and LCD display, which is better, LCD display or LED display?

LED backlight: power saving (30% to 50% less than CCFL), high price, bright color, high saturation.

Compared with the LED backlight, the CCFL backlight 3360 consumes much less power (still much less than the CRT) and is cheaper.

Difference image: LED backlight has bright colors and high saturation (CCFL and LED natural light sources are different).

How to tell the difference: LED backlight will emphasize LED TV, but CCFL LCD TV will not.

There are real LED TVs (active lighting, no backlight) on the market. Both Sony and Samsung have them, but their panels are currently under 11 inches and are very expensive. For example, the price of Sony's 11-inch AMOLED TV is about 18000 yuan, which belongs to the high-end market, so there are few on the market. Let's take a look at the actual picture comparison of the difference between lcd and led. The following two notebook monitors: CCFL backlit LCD on the left and LED backlit LCD on the right, which are red, green and blue, respectively, as shown below:

As can be seen from the picture, generally speaking, the color difference between LED screen and LCD screen is not very large to the naked eye. If you just pay a disproportionate price for the name LED, it's really not necessary.

IV. The difference between led display and LCD display

In fact, LED display screen and LCD display screen is the same, there is no difference. The main difference is the backlight that causes the screen to produce bright light.

1. An ordinary LCD screen uses a CCFL light source, a cold cathode fluorescent tube (similar to the scanning tube in a photocopier). There is one on each side of the screen, and there is a backlight on the back of the display, which is composed of fluorescent substances, so that the light sources on both sides can be evenly distributed on the back of the screen, thus making the whole screen glow evenly. However, due to technical limitations, the brightness of such a display is not completely uniform, but difficult to find. At the same time, the lamp has a certain life, and it will turn yellow after a long time.

2.LED LCD uses LED light source, that is, light-emitting diodes (such as red and blue indicators on household appliances). This kind of LED is very power-efficient, and because it is not a lamp, it can be arrayed one by one and distributed evenly behind the LCD screen. The brightness is good, the backlight is more uniform. This kind of display can be made thinner and more power-efficient, the life of LED is longer than that of CCFL, and the color is stable and not easy to yellowing.

At the end of this article, I hope it will be helpful to you.

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