Publisher: Supplier of LED Display Time: 2022-09-01 16:59 Views: 620
At present, the application of LED display screen and LCD liquid crystal screen is more and more extensive, and LED and LCD screen can be seen almost indoors and outdoors, streets and alleys. When choosing a display screen, users want to know which is better, LCD or LED, for example, whether LCD has better display effect or LED screen has better display effect, which one hurts the eyes and which one doesn't, especially in some large screens that need to be used for a long time These specific factors on display occasions will directly affect our use. At this time, we have to look at the specific difference between LCD and LED screen rationally, because there are certain reasons for the existence of any product. They have both advantages and disadvantages. We can only clarify our own display needs. At the same time, select the corresponding technology. Therefore, there is no better LCD or LED screen, only suitable and unsuitable. Next, the editor will introduce the differences between them in detail to make a comparison, so that everyone knows how to choose.
1. what is led screen and lcd screen
LED is a relatively new type of backlight, which uses infrared light and is a single-tube design. So what is lcd? LCD is also a kind of backlight, but compared with lcd and led, the brightness is not big enough. Lcd is generally used for the backlight of electrical appliances, such as our mobile phones and TVs, most of which use the backlight of lcd, because the lcd backlight is less harmful to the eyes. Compared with LCD displays, LED displays have more advantages in terms of brightness, power consumption, viewing angle and refresh rate. The 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.
LED is the abbreviation of light-emitting diode (light-emitting diode), which is made of compounds containing gallium (Ga), arsenic (As), phosphorus (P), nitrogen (N), etc. When electrons and holes recombine, they can emit visible light, so they can be used to make light-emitting diodes. LEDs can efficiently convert electrical energy into light energy and have been widely used in displays and lighting.
LCD is the English abbreviation of Liquid Crystal Display, which is a general term for liquid crystal display. It is a digital display technology. The liquid crystal itself does not emit light.
Simply put, LCD screens and LED screens are displays that use two different display technologies. LCD is a display screen composed of liquid crystals, while LED is a display screen composed of light-emitting diodes.
2.the difference between LED screen and LCD screen
(1)It works differently
LED is a semiconductor light-emitting diode, and the LED lamp beads are reduced to the micron level. Each tiny LED lamp bead is a pixel, and the screen panel is directly composed of this micron-level LED lamp bead. The LCD display is actually a liquid crystal display. Its main working principle is to stimulate the liquid crystal molecules to generate dots, lines, and surfaces with the back light tube to form a picture.
(2)Display brightness is different
The response speed of a single element of the LED display is 1000 times that of the LCD liquid crystal screen, so the LED display has more advantages in brightness. Even if the screen is viewed under strong light, there is no problem at all. However, high brightness is not an advantage. If it is viewed from a distance, it is better, but if it is viewed from a close distance, the high brightness will be very dazzling. The LCD screen emits light by refracting light, and the brightness is relatively soft and does not hurt the eyes, but it is difficult to see the screen clearly under strong light. Therefore, the LED screen will be more suitable for long-distance display, and if it is mainly for close-up viewing, the LCD screen is better. 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.
(3)Display colors are different
In terms of color texture, the color of the LCD screen is better, and the picture quality is richer and more dazzling, especially for grayscale expressiveness.
(4) Different power consumption
The power consumption ratio of LED to LCD is about 1:10. Because the switching of LCD means that the entire backlight layer is fully on or off; in contrast, LED can only light up part of the pixels in the display, which is better in terms of power saving.
LED backlight saves power (30%~50% power saving compared to CCFL), high price, high brightness and saturation, CCFL backlight consumes power compared to LED backlight (still saves much more power than CRT) and is cheaper.
(5)Contrast is different
In contrast, thanks to the self-luminous characteristics of LED, the contrast ratio is better than that of LCD, because it is difficult for LCD to show pure black due to the existence of the backlight layer.
(6)Different refresh rates
LED screens have higher refresh rates and better performance in video. The LED provides a wide viewing angle of 160°, and can display various characters, numbers, color images and animation information, and can play color video signals such as TV, video, VCD, DVD, etc.
(7) Different viewing angles
The LED LCD backlight has a wider color gamut than the LCD LCD, and the LED provides a wide viewing angle of 160°.
(8)Lifespan is different
The life of LED LCD screen backlight is much longer than that of LCD LCD screen.
(9)Different application environments
If only from the adaptability of the application environment, there is no doubt that the LED screen is better than the LCD screen, because the LED screen has the characteristics of waterproof, sun protection, and high brightness, so it can meet the needs of outdoor applications, even if it is raining and sunlight. It can also display the image normally in direct sunlight. The LCD screen can only be used in an indoor environment, because it is an electronic product with many electronic components inside, which cannot be exposed to water, otherwise it will cause a short circuit. Therefore, the LED screen has more advantages in terms of environmental applications.
(10)The display effect is different
The clarity of the LCD screen is better, the brightness is suitable for long-term viewing, and the color is more delicate. The LCD screen belongs to the liquid crystal series products. The resolution of one screen can reach 1920*1080, and it can achieve 4B high-definition display through multi-screen splicing, so it can display images with very high definition, whether it is near or far. All are very clear, giving users a better visual experience, especially suitable for playing some high-definition film sources.
In addition, although the brightness of the LCD screen is not as high as that of the LED screen, it can meet the use of indoor display occasions, and it is not reflective. At the same time, it is more advantageous when viewing the screen for a long time, because if the brightness is too high, the screen will be dazzling. It hurts the eyes, and although its brightness is not particularly high, it has no effect on the eyes when watching it for a long time, and it looks very comfortable, just like we usually watch TV. Furthermore, the color of the LCD screen is richer, the color gradation is strong, the grayscale performance is good, the contrast ratio is high, and the color can reach 16.7M, and the image looks more delicate and soft.
The integrity of the LED screen is good. Due to the organizational structure of the LED screen, there is no splicing gap like the LCD screen in the middle of the screen after splicing, so its integrity is good, and the effect is better when the screen is displayed in full screen.
3. Which one is better, led or lcd screen?
LED screen is better than LCD screen in performance, but LCD screen is more pleasing to people's eyes, so if it is a close distance, such as a laptop, LCD screen will be more comfortable to use, if it is a TV wall, indoor large screen and outdoor large screen In other scenarios, the LED screen will be better and more suitable.
The above is the difference knowledge between lcd and led screen sorted out by LCF. 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 major 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, LCF LED display manufacturer, a big country brand, trustworthy!