On the LCD, LED display, LED backlight screen, LCD display problems
Author:Wang Chunxia Time:2021-08-02 15:45 Browse(357)
You may only know that if you take it down and see it, you can't see it if you don't take it down.
You may only know that if you take it down and look at it, but you can't see it if you don't take it down.
you can't see it if you don't take it downLED display screen is a large screen used to display information or advertisements in stations, squares, etc.
its screen is composed of many light-emitting diodes.

On the LCD, LED display, LED backlight screen, LCD display problems

the LED display screen is composed of many light-emitting diodesThe LED backlight screen is a common LCD screen, replacing CCFL backlight with LED backlightLCD screen is a common LCD screen.
the backlight is CCFL cold cathode tube.
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the difference between LCD splicing screen and LED screen: the characteristics of LCD splicing screen1. High brightness, high contrast: did LCD panel has higher brightness.
different from ordinary TV and PC LCD panel? The brightness of TV or PC LCD screen is generally only 250 ~ 300cd / m2, while the brightness of did LCD screen can reach more than 700cd / m2.
the contrast ratio of did LCD splicing screen is 1200:1.
even 10000:1, which is more than twice as high as that of traditional PC or TV LCD screen and three times as high as that of ordinary rear projection screen.
the brightness of TV or PC LCD screen can reach more than 700cd / m22. Thanks to the professional development of color calibration technology for did products.
through this technology, in addition to the color calibration of still images, it can also calibrate the color of dynamic images.
in order to ensure the accuracy and stability of image output.
in terms of color saturation.
didlcd can achieve 80% - 92% high color saturation, At present, the color saturation of ordinary CRT is only about 50%3. The brightness is uniform.
the image is stable and does not flicker.
because every point on the LCD keeps that color and brightness after receiving the signal.
unlike CRT, it needs to refresh pixel points continuously.
the color and brightness of the LCD are different from those of CRTTherefore.
LCD has uniform brightness, high image quality and absolutely no flicker120 Hz frequency doubling refresh frequency.
120 Hz frequency doubling liquid crystal display technology of did products? It can effectively solve the problem of trailing and blurring in the process of image fast motion? Enhance image clarity and contrast? Make the picture clearer? It's not easy for human eyes to get tired after watching for a long time.
it's not easy for human eyes to get tired after watching for a long time5. Wider viewing angle.
using this technology? The visual angle can reach double 180 degrees °( Through the application of PVA technology, namely "image vertical adjustment technology", the LCD splicing screen has a wider viewing angle.
the LCD splicing screen has a wider viewing angle6. Flat panel display.
LCD is the representative of flat panel display device, is a real flat panel display, no curvature big picture? No distortion7. Ultra thin and narrow edge design.
LCD splicing screen not only has the characteristics of super large display area, but also has the advantages of ultra light and thin.
it can be easily spliced and installed.
the special LCD splicing screen.
its excellent narrow edge design makes the edge of its single chip even less than 1 cm, so the small edge effect will not affect the overall display effect of the whole screen.
the LCD splicing screen has the advantages of high display area, light weight and so on8. High service life.
the service life of the backlight of the didlcd LCD can reach more than 50000-100000 hours? This ensures the consistency of brightness, contrast and chroma of each LCD used for splicing display after long-time use? And ensure that the service life of the display screen is not less than 50000 hours.
the service life of the display screen is not less than 50000 hours9. Better reliability.
ordinary LCD is designed for TV and PC display, and can't support continuous use day and night.
ID LCD is designed for monitoring center and display center? It can be used continuously for 7x24 hours.
theDifference between LCD splicing screen and LED screen: characteristics of LED screen1. When the brightness is strong and the sunlight is directly on the screen surface within the visible distance.
2The display content is clear and visible2. Automatic brightness adjustment has the function of automatic brightness adjustment, which can obtain the best playback effect in different brightness environment3. Video, animation, chart, text, picture and other information display, network display, remote control4. Advanced digital video processing technology, distributed scanning, modular design / constant current static drive, automatic brightness adjustment5. Super gray level control has 1024-4096 gray level control, the display color is more than 16.7M, the color is clear and realistic, and the three-dimensional sense is strong6. Static scanning technology adopts static latch scanning mode, high power drive, fully ensure the brightness7. The imported large-scale integrated circuit is fully adopted, which greatly improves the reliability and is convenient for debugging and maintenance8 static scanning technology adopts static latch scanning mode, high power drive, fully ensure the brightness9. The image is clear without jitter and ghosting, and distortion is eliminated10. Super bright solid pixels11. All weather work fully adapts to all kinds of harsh outdoor environment, such as waterproof, moisture-proof, anti-corrosion, lightning protection, strong anti-seismic overall performance, good display performance, high cost performance, pixel tube can adopt p10mm, P16mm and other specificationsDifference between LCD splicing screen and LED screen: Application1. LCD splicing screen is widely used in financial and securities information display terminals; Airport, port, wharf, subway, highway and other transportation industry information display terminal; Commercial, media advertising, product display and other display terminals; Dispatching and control room 6, broadcasting and television, large-scale studio / performance place; Mining, energy security monitoring system; Fire control, meteorological, maritime, flood control and transportation hub command system; Military, government, urban and other emergency command systems; Education and training / multimedia video conference system2. LED display screen is used in sports, advertising, factories and mining enterprises, transportation, stations, docks, airports, hotels, banks, securities markets, construction markets, taxation, shopping malls, hospitals, finance, industry and commerce, posts and telecommunications, education systems, auction houses, industrial enterprise management and other public places.
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