Abstract: The present invention discloses a heteroatom- and cycloalkyl-containing organic compound and an organic electroluminescent device containing the compound. The general structural formula of the organic compound is as represented by Formula I. The organic compound has a boron-nitrogen structure with multiple resonance effect, wherein a cycloalkyl-containing fluorenyl structure is introduced on the basis of the boron-nitrogen structure. The molecular size is greatly expanded by means of the cycloalkyl group, thereby effectively avoiding a concentration quenching effect, while the molecular orientation is enhanced due to the planarity of the fluorenyl group.

Abstract: A projection method and a terminal device, including responding, by a transmit end, to a screen projection instruction, obtaining a real-time interface of an application program on which screen projection is to be performed and device information of one or more receive ends, obtaining a user experience score of each receive end of the one or more receive ends by scoring a visual effect, sound effect, and interaction complexity of each receive end based on the device information, obtaining, based on the user experience score, first data on which screen projection is to be performed and that is at least one of a video stream, an audio stream, or a user interface control, obtaining a control layout file of the user interface control in response to the first data having the user interface control, and sending, to a corresponding receive end, the first data and the control layout file.

Abstract: A projection method and a terminal device, including responding, by a transmit end, to a screen projection instruction, obtaining a real-time interface of an application program on which screen projection is to be performed and device information of one or more receive ends, obtaining a user experience score of each receive end of the one or more receive ends by scoring a visual effect, sound effect, and interaction complexity of each receive end based on the device information, obtaining, based on the user experience score, first data on which screen projection is to be performed and that is at least one of a video stream, an audio stream, or a user interface control, obtaining a control layout file of the user interface control in response to the first data having the user interface control, and sending, to a corresponding receive end, the first data and the control layout file.

Abstract: In a method for displaying a user interface (UI) component of a source device on a destination device, at least one function control of a first application of the source device may be combined into a UI component, and the UI component is displayed on the destination device. In addition, an operation may be performed on the function control on the destination device, and an operation result may be transmitted to the source device for execution.

Abstract: In a method for displaying a user interface (UI) component of a source device on a destination device, at least one function control of a first application of the source device may be combined into a UI component, and the UI component is displayed on the destination device. In addition, an operation may be performed on the function control on the destination device, and an operation result may be transmitted to the source device for execution.