What common feature do both IPS and VA panels share?

Both IPS (In-Plane Switching) and VA (Vertical Alignment) panels are known for their advancements in viewing angles compared to other types of display technologies, such as TN (Twisted Nematic) panels. This feature is significant for users who need to view the screen from off-angles, as both IPS and VA panels maintain color accuracy and brightness when viewed from different positions.

IPS panels specifically excel at providing wider viewing angles and better color reproduction, which is why they are often favored in graphic design and professional environments. VA panels, while not as wide in viewing angles as IPS, still offer better angles compared to TN panels, making them suitable for various applications, including home entertainment.

The other choices do not accurately represent a shared commonality between IPS and VA panels. Energy efficiency can vary greatly among different models and technologies in both categories, making that option misleading. Similarly, response times vary significantly; IPS panels typically have faster response times than VA panels. Regarding backlighting, while both panel types can use LED backlighting, they are not restricted to or defined by the use of CCFL (Cold Cathode Fluorescent Lamp) backlighting, as newer technologies have largely shifted towards LED. Thus, the correct answer emphasizes a well-known benefit