Display apparatus, display panel and method thereof

PURPOSE: A display device, a display panel, and a display method are provided to control the opaque state of a second panel to block light on the rear of the display device, thereby displaying a clear image. CONSTITUTION: A display device (100) comprises a first panel (110), a second panel (120), and a control unit (130). The first panel displays images using self-light emitting devices with transparent materials. The second panel is arranged on the rear of the first panel. The control unit switches the second panel into a transparent state or an opaque state. The second panel is divided into a plurality of regions. Each of the regions is switchable into the transparent state or the opaque state. [Reference numerals] (110) First panel; (120) Second panel; (130) Control unit