CRT picture tube size is generally referring to the size of the diagonal, is the size of the picture tube led display quotes, not its display area, but for users, concerned or his visual area, is what we are able to see the actual tube sizes, units are by inch. In general, the 15-inch display, and its viewing area is generally 13.8 inches, 17-inch display, the viewing area is generally 16 inches, 19-inch display, the viewing area is generally 18 inches. Analog adjustment is to set a row of buttons to adjust the external monitor to manually adjust the brightness, contrast and other technical parameters. This adjustment can be achieved due to limited efficacy, does not have the video mode function. In addition, analog devices are more chances of failure of a large, but very few can be adjusted contents led display, it has disappeared. Digital regulator is inside the display to join a dedicated microprocessor, operating more accurate maintenance led display, the display mode can remember, and the use of multi-micro-touch buttons, long life and low failure rate, this adjustment method has been a smash hit . Price County led display led display _ _ should LDX advertising provided by the Shanxi DS Hin Culture Media Limited. DS Shanxi Xuan Culture Media Co. (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 ads and you hand into the brilliant, for a better future!