Complex sentence: It is the 2nd largest HD screen in Major League Baseball behind Kauffman Stadium, the screen at Kauffman is larger by overall area and is square in shape but Chase Field's screen is larger by length and is rectangular.
Split into simpler sentences: It is the 2nd largest HD screen in Major League Baseball behind Kauffman Stadium. The screen at Kauffman is larger by overall area and is square in shape but Chase Field's screen is larger by length and is rectangular.