Shenzhen Lianchengfa Technology Co., Ltd.

LCD screens and LED screens are two different types of displays, which are suitable for different display scenarios. The LCD display is composed of liquid crystal, so its service life will be much longer than that of the LED display, but its power consumption is higher; and the LED display is composed of light-emitting diodes, although its practical life is longer than that of the LED display. The lcd screen is a bit shorter, but it consumes less power.

LED display has gradually become the mainstream display device on the market, more popular than LCD display. But most people don't have a clear understanding of lcd display and led display, so what is the difference between lcd and led display? The following LCF  Xiaobian will take you to understand it together!

1. What is LCD?

LCD is the full name of Liquid Crystal Display. There are mainly TFT, UFB, TFD, STN and other types of liquid crystal displays that cannot locate the program input point 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 a thin film transistor integrated behind the pixel, so that it can display screen information at high speed, high brightness and high contrast. It is currently the best. One of the most popular LCD color display devices is now the mainstream display devices on laptops and desktops. Compared with STN, TFT has excellent color saturation, restoration ability and higher contrast ratio, and it can still be seen very clearly in the sun, but the disadvantage is that it consumes more power and costs more.

2. what is LED?

LED is the English abbreviation of Light Emitting Diode. LED applications can be divided into two categories: one is LED display; the other is LED single-tube applications, including backlight LED, infrared LED and so on. As far as LED display is concerned, China's design and production technology level is basically synchronized with the international level. The LED display screen is a display device composed of light-emitting diodes. It adopts low-voltage scanning drive and has the characteristics of low power consumption, long service life, low cost, high brightness, few failures, large viewing angle, and long visual distance.

3.the difference between lcd screen and led screen

In fact, the LED display and the LCD display are the same, and there is no difference between them. The main difference is the backlight source that makes the screen shine. LED displays Compared with LCD displays, LEDs are more advantageous in terms of brightness, power consumption, viewing angle and refresh rate. Navigation to this web page has been cancelled. Using LED technology, it is possible to make displays that are thinner, brighter, and sharper than LCDs.

(1)The power consumption ratio of LED to LCD is about 1:10, and LED is more energy efficient.

(2)LED has a higher refresh rate and has better performance in video.

(3)The LED provides a wide viewing angle of 160°, which can display various characters, numbers, color images and animation information, and can play color video signals such as TV, video, VCD, DVD, etc.

(4)The reaction speed of a single element of the LED display screen is 1000 times that of the LCD liquid crystal screen.

(5)The display technology is different from the display effect. LCD is a display screen composed of liquid crystals. Due to the backlight layer, it emits light by refracting light, the color saturation is not so high, the display effect is more natural, and it is not easy to get tired after watching it for a long time. LED is a display screen composed of light-emitting diodes. It can emit light by itself, and each pixel can project the light of three primary colors of red, green and blue, so the display effect is more vivid and full.

(6)Thickness and power consumption are different. In terms of thickness, the LCD screen is thicker due to the existence of the backlight layer and the liquid crystal layer. The LED screen is very easy to make the mobile phone thin, and it also provides the possibility for the emergence of bendable and foldable screens in the future. In terms of power consumption, as soon as the LCD screen is turned on, its entire backlight layer will be fully turned on, and it can only be fully turned on or turned off, and the power consumption is high. Each pixel of the LED screen works independently and can light up some pixels individually, so the power consumption of the LED will be lower.

(7)Screen life varies. The lcd screen uses inorganic materials, which have a slow aging rate and a long life. The led screen is made of organic materials, so the life of the led screen is not as good as that of the lcd screen.

(8)The ordinary LCD liquid crystal display uses a CCFL light source, that is, a cold cathode fluorescent lamp (similar to the scanning lamp in a copy), there is one on each side of the screen, and there is a backlight on the back of the display, which is a fluorescent lamp. The material composition allows the light sources on both sides to be evenly distributed on the back of the entire screen, so that the entire screen is evenly illuminated. However, due to technical limitations, the brightness of such a display is not completely uniform, but it is difficult to find it. At the same time, the lamp tube also has a certain life, and it will turn yellow after a long time.

(9)The LED liquid crystal display uses an LED light source, that is, a light-emitting diode (like the red and blue indicator lights on household appliances). Such light-emitting diodes are very power-saving, and because they are not lamps, they can be formed into arrays and evenly distributed behind the LCD screen. The brightness is good, making the backlight more uniform. Such a 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 yellow.

It can be seen from this that the LCD display screen is composed of liquid crystals, so its service life is longer, but its fully-on and fully-off backlight layer increases its power consumption rate. The LED display screen is composed of light-emitting diodes and has a short service life, but each pixel of it is a light-emitting body, which reduces its power consumption rate during use. Simply put, 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.

The above is the difference between lcd screen and led screen sorted out by LCF Xiaobian. I hope it will be helpful to you. Colleagues welcome your additions and corrections. LCF is a world-leading provider of LED display applications and solutions, as well as a national-level specialized, special, and new little giant enterprise. The main business covers "smart city", "cultural tourism business performance", "commercial display project", "content technology" four sections, with the world's leading automated production equipment and modern post-doctoral research laboratory and perfect sales and services team. Friends who want to buy LED display can also contact us, Lianchengfa LED display manufacturer, a big country brand, trustworthy!