Abstract: The present invention relates to an organic compound, an organic electroluminescent material, and an organic electroluminescent element. The structural formula of the compound is shown in formula (I). When the organic compound of the present invention is used for preparing an organic electroluminescent element, the electron mobility, thermal stability, and luminescent characteristics are excellent; and the organic compound can be applied to an organic layer of the organic electroluminescent element. The organic compound of the present invention has a relatively good film-forming property; and when same is applied to an electron transport layer and an electron transport auxiliary layer, an organic electroluminescent element, which has a lower driving voltage, a higher light emission efficiency, and a longer service life than existing electron transport materials, can be manufactured, and thus, a full-color display panel with having improved performance and a prolonged service life can be manufactured.

Abstract: The disclosure provides a display device and a display image rotation adapting method. A rotating component may be controlled to rotate a screen into a portrait mode if a video media resource is a vertical media resource and the screen is in a landscape mode; or, the rotating component may be controlled to rotate the screen into a landscape mode if the video media resource is a horizontal media resource and the screen is in a portrait mode, so as to adapt to an aspect ratio corresponding to the video media resource.

Abstract: The disclosure provides a display device and a display image rotation adapting method. A rotating component may be controlled to rotate a screen into a portrait mode if a video media resource is a vertical media resource and the screen is in a landscape mode; or, the rotating component may be controlled to rotate the screen into a landscape mode if the video media resource is a horizontal media resource and the screen is in a portrait mode, so as to adapt to an aspect ratio corresponding to the video media resource.