Abstract: The present invention relates to an S-configuration-containing amino benzamide pyridazinone compound, a preparation method therefor, and a pharmaceutical composition and application thereof. Specifically, the present invention relates to a compound represented by the following general formula I or a pharmaceutically acceptable salt thereof, a preparation method therefor, and a pharmaceutical composition and application thereof. The S-configuration compound of the present application has very strong binding activity on class I histone deacetylase (HDAC1), and shows inhibitory activity on in-vitro proliferation of various tumor cells.

Abstract: Disclosed are a display apparatus and a split-screen playback method. The method includes: upon receiving media data pushed from the terminal device, detecting a type of a current signal source of the display apparatus; in response to the type of the current signal source being included in a source list, starting a split-screen playback mode in the display apparatus, generating a first window and a second window, presenting the first window and the second window, on a display, and displaying video data from the current signal source in the first window and displaying the media data from the terminal device in the second window; in response to the type of the current signal source being not included in the source list, not generating the first window and the second window, and presenting the video data from the current signal source in a full-screen mode on the display.