Analog adjustment is provided outside of a row in the display adjustment button led display manufacturers to manually adjust the brightness, contrast and other technical parameters. This adjustment can be achieved due to limited efficacy, does not have video mode function. Further more led display quotes, Analog Devices, a greater chance of failure, and the content can be adjusted very little, so we have disappeared. Digital Controller is added to a dedicated microprocessor inside the display, the operation more precise led display, led screen display mode memory can be installed, and its use of multi-micro-touch buttons, long life and low failure rate, this adjustment method has been a smash hit. CRT: It is one of the biggest part of the display changes in production technology, but also an important criterion to measure the grade level of the display, according to the tube surface flatness can be divided into spherical tubes, flat rectangular tube, cylindrical tube, flat tube . Spherical Tube: From the earliest green display, monochrome display many 14 inches, basically spherical screen products, its flaws are obvious, in horizontal and vertical directions are curved. Corner distortion is serious, with the change of the viewing angle, the image is tilted, in addition to this screen is very easy to cause reflection of light, this will reduce the contrast, the larger the human eye irritation, this tube out of the market just a matter of thing. led display led display manufacturers _ _ LDX pacification Advertising Co., Ltd. provided by the Shanxi Xuan DS culture media. Shanxi Xuan DS Media Limited (www.sxdxzs.com/) strong, credible, in Taiyuan, Shanxi advertising industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead LDX into the brilliant ad and you work for a better future!