Proview wcan monitor is connected to the power supply, and can be turned on by pressing the switch at the bottom of the screen. Proview Company was founded in 1989 and was once one of the four largest display manufacturers in the world. Provide display products, products listed in more than 50 countries, business personnel all over the world. Due to financial problems, Proview shares were suspended on August 2, 20 10. 2011/February, Apple sued Proview for infringement in Shenzhen Intermediate People's Court, and Proview won the case. Subsequently, Proview filed a lawsuit against Apple's authorized dealers, demanding that they stop using the IPAD trademark.