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LCD splicing screen products must see common sense
LCD splicing screen products must see common sense
1. What is DID? How is it different from a normal LCD?
DID is the abbreviation of Digital Information Display. It is a new generation of liquid crystal display technology introduced by Samsung Electronics in 2006. It is widely used in LCD monitors in various fields such as security monitoring, information distribution, display systems, and commercial rental of display devices. As its unique display technology is different from the ordinary liquid crystal display is to improve the arrangement of liquid crystal molecules can be placed horizontally vertical ceiling. High brightness, high definition (1080P), long life, stable operation, low maintenance cost.
2. What are the advantages of DID over DLP and PDP?
DLP rear projection technology is too large in size and weight. The key technical indicators are far inferior to those of liquid crystal and plasma, and long-term uninterrupted work will speed up the aging of DLP rear projection bulbs. Since there are only a few thousand hours of life, if it is run twenty-four hours a day , you need to replace the rear projection bulb in a few months. Plasma consumes a large amount of power and heat, and there is a serious burn phenomenon, it is not suitable for displaying static monitoring images for a long time, and after splicing, the temperature rise of the whole machine is higher, which makes the device easily burned. LCD is one of the best in the flat panel display technology. Its thin thickness, light weight, low energy consumption, long life, no radiation, and outstanding performance of various key performance indicators have made it a mainstream of development and have a bright future.
3.DID LCD can be seamlessly stitched?
At present, the narrowest LCD panel is the 46-inch ultra-narrow DID LCD panel launched by Samsung in 2009. Its upper frame is 2.4mm wide and the lower frame is 4.3mm wide. The theoretical value of physical seam is 6.7mm. The actual physical seam can be the smallest Do 7.3mm. At present, the seamless LCD splicing screen on the market refers to a 7.3mm DID LCD splicing screen.
4. What is LED backlighting and how does it compare to traditional CCFL backlighting?
The liquid crystal material itself does not emit light, and the light source on the back of the liquid crystal panel is required to provide light support. LED backlighting replaces traditional CCFL backlights with LEDs (light emitting diodes, typically white light). Divided into dot matrix (also known as direct type) and side light type two. The LED backlight LCD screen has a wider color gamut, higher brightness, and longer service life than the conventional CCFL screen, and is more green and environmentally friendly.
5. What is Full HD FULLHD? How to distinguish whether the LCD screen has HD full HD display function?
FULLHD is the abbreviation of FullHighDefinition, full HD display is able to completely display 1920 × 1080 pixels or physical resolution of 1920 * 1080 display. HD is the abbreviation of HighDefinition, according to the "digital television receiving equipment - display standard" developed by the Ministry of Information Industry, all the horizontal and vertical resolution can reach 720 TV lines above can be regarded as high-definition television. FULLHD is currently the top high-definition format, its horizontal and vertical resolution must reach more than 1080P, physical resolution of 1920 × 1080, can fully display 6.22 million pixel top-level high-definition picture quality. So there is a fundamental difference in the clarity of the picture display.
6. Which LCD screens can be used outdoors directly?
In addition to the high brightness of the LCD screen used in the outdoor environment, in addition to clear display in high light conditions, there must be a special temperature and humidity control function that can adapt to the outdoor temperature and humidity under different seasons and times. And with wind, rain, dust, scratch, explosion-proof, anti-ultraviolet and other functional design, in outdoor harsh environments can still be unattended, safe and stable.
7. What is the seam of the LCD splicing screen? Can any number of stitching?
Different sizes of LCD splicing screens have different splicing gaps. At present, the narrowest physical patch seam is 7.3 mm, and the unit size is 46 inches. You can select the number of rows and columns according to the required display area and perform any number of splicing.
8. What is a stitching controller? How to determine whether the splicing screen system needs to configure the splicing controller?
The liquid crystal splicing unit has a built-in splicing control board and supports the RS232 serial port protocol. By directly splicing through the software, various display modes such as single-screen display, multi-screen display, arbitrary combination display, image stretching, and image superposition can be realized. Splicing processor. The external stitching controller is only required when special functions such as image roaming and image drag and drop are required.
9. What are the installation methods for the splicing screen?
Common splicing screen installation methods include embedded, wall-mounted, ceiling-mounted and floor-mounted.