Double LCD monitor additional small screen

This LCD monitor Korean production company Woojin unique in that the top is another small monitor. Quite unusual decision to comply.The display is 19 diagonal inches, resolution 1280 x 1024, contrast ratio, brightness of 300cd/m2 and response time 8ms. Additional 8,4-дюймовый same display with a resolution of 800 x 600, 350:1 contrast and brightness of 200cd/m2. Mystery remains only what it (additional display) purpose? There are ideas?