Access Hole exposes the hole (through the exposed hole, exposed bottom hole) ---- often refers to the protective layer Coverlay of the outer surface of the soft board (to be first punched through the exposed hole), used to fit on the surface of the soft board as a solder mask the use of. However, it is necessary to deliberately reveal the hole ring wall or square pad required for welding in order to facilitate the welding of the parts. The so-called "Access Hole" text means that the surface has been exposed, so that the outside world can be "close" to the meaning of the surface of the board surface solder joints. Some multilayer boards also have this exposed hole.
Cross Screen is mainly used in hospital, clinic, pharmaceutical chain stores and others place. The cross screen can use for advertise signs, street signs, etc. It can display animation, text, time, temperature, noise and so on! Simple control system with the wired and wireless control can make cross screen be more easy to operate. Besides offering complete and best solutions, Shenzhen Cxcolor Optoelectronic Company limited is a professional manufacturer specialized in Led Display Screen, LED stage rental display screen, Led Advertising Display screen, small pitch Led Display screen, LED transparent display screen, vehicle LED display screen, LED spherical display screen, LED energy-saving display screen.
Cross Screen
Cross Screen,Giant Led Screen,Foldable Led Screen,Led Tv Display Panel
Shenzhen Cxcolor Optoelectronics Co.,LTD , http://www.largeledscreen.com