Almost all ORs in China are equipped with surgical displays that are used to present surgical camera videofeeds and procedure-related information. Normally, ORs have one to two displays, depending on themedical specialty and space availability. For example, a general surgical suite has one surgical display andan arthroscopy suite generally has two. These displays would be moved around on carts that could bebrought into the OR as needed. However, the popularity of integrated ORs is causing an increasing in thenumber of displays in the OR. A growing percentage of ORs use two to three displays, especially thoseused for cardiology procedures or for teaching. In rare circumstances, such as some larger teachingfacilities, large displays are being placed on walls to present camera feeds from the operation to thegallery for educational purposes. The introduction of integrated ORs has brought about the use of touchscreen displays for control of some OR equipment. Dedicated ORs typically have four surgical displays,with two of these displays being found on the surgical cart. OR booms have allowed for the placement ofdisplays above the operating area, reducing their footprint in the OR. In addition, liquid crystal displays(LCD) have almost completely replaced standard definition cathode ray tube (CRT). The demand forlarger displays is increasing as the resolution of monitors has increased drastically since 2008 when HDwas introduced.