You can consult Xi Anlanxun Digital Network Technology Co., Ltd. 55-inch LCD splicing large screen system DID 55-inch LCD splicing large screen system adopts direct LED light source technology display screen, with a contrast of 3000:1; Color temperature10000k; Specially designed for video display, high brightness and high definition, even in the sun, still perfect display; Ultra-narrow seam 5.3mm, with border compensation function, highly restored to true painting. 1, the display screen adopts direct LED light source technology, and the contrast ratio is 3000:1; Color temperature10000k; 2. It can support 256 screens; 3. Ultra-narrow flat-fell seam is 5.3mm, which has the function of border compensation and highly restores the true painting; 4, high resolution, single screen can reach1920x1080; 5. Long service life, stable operation, no burn or damage, and low maintenance cost; 6, rich input and output interfaces, VGA, HDMI, YPbPr, AV interface terminals; 7. The brand-new ultra-wide viewing angle expansion technology ensures that the image viewed from the up, down, left and right 178 degree viewing angle is not distorted, and the color is not distorted. Product application monitoring center: public security, finance, energy, transportation, coal mine, government, enterprise and other monitoring and command and dispatch centers: public display: airports, railways, subways, highways and other transportation industries, libraries, museums, zoos, shopping malls and other exhibition places: TV studios, large-scale performances and commercial exhibitions, hotel lobbies, office halls of enterprises and institutions, conference rooms: scientific research and military: scientific research and educational institutions, and conference rooms.