LG 55EF5K-L 55" Class Curved Video Wall Monitor. Designed to blend into any space while captivating your audience, this video wall monitor displays in landscape orientation. A flexible design with an open frame allows the 55EF5K-L to be bent to deliver a concave or convex surface using the LG Curvature Calibrator, available separately. OLED screen technology ensures rich colors and contrast, while a range of inputs including HDMI, DisplayPort, and DVI-D allow for easy deployment. Due to the nature of its curved design; “R” signifies the radial length of a circle which allows for its curved display. For example, displays with a curvature of 1,000R will have a radius of 1m (1,000mm).