The Lenovo ThinkVision L2021 20-inch LCD Monitor�s high contrast ratio reproduces high-definition movies in vibrant colors and great details. This Lenovo LCD monitor has a 5 ms response time that renders blur-free video. This Lenovo monitor has a maximum refresh rate of 75 Hz, which minimizes screen flicker making for longer stress-free working hours. This Lenovo ThinkVision L2021 20-inch LCD Monitor�s 1600 x 900-pixels resolution provides viewing up to 720p HD movies and videos in maximum details. This Lenovo LCD monitor�s LCD Panel displays your favorite network shows or movies in superior clarity. The 20-inch Lenovo monitor has built-in HDCP support for playing high-quality, high-definition content from HDCP-ready playback devices.