A method for sharing content performed by at least one processor of a first user terminal includes initiating, through a first external device, a call between a first user account associated with the first user terminal and a second user account associated with a second user terminal included in a chat room of an instant messaging application, transmitting a co-view request associated with a content to share to the first external device, where the content to share is one of a plurality of contents shared within the chat room, and displaying the content to share with a call screen on a display of the first user terminal.

This application provides a projection connection control method and an electronic device. The method includes: A transmit end device obtains preemption capability information from a receive end device, where the preemption capability information indicates whether the receive end device supports projection connection preemption; and when the receive end device supports projection connection preemption, the transmit end device sends first configuration information to the receive end device in response to a user instruction, so as to configure the receive end device to not support projection connection preemption.

The present application discloses a signal channel switching method, a display terminal and a computer-readable storage medium. The signal channel switching method includes the following operations: establishing a data connection with a first external device connected with a first hot plug pin; obtaining a first voltage detected by a second hot plug pin, and judging whether the first voltage conforms to a preset rule; if the first voltage conforms to the preset rule, obtaining information of a second external device connected with the second hot plug pin; cutting off the data connection with the first external device and establishing a data connection with the second external device according to the information of the second external device.

An image processing method applied to a display device having a processing circuit and a screen and includes: receiving a first image from one of a plurality of electronic devices; detecting whether the first image has a black border area; and if the first image has the black border area, performing a first display operation, wherein performing the first display operation includes: removing the black border area of the first image, to generate a second image; adjusting the size of the second image according to the size of a display area of the screen; calculating a first blank area of the screen based on the adjusted second image; requesting a third image from another one of the electronic devices according to the size of the first blank area; and filling the display area of the screen with the adjusted second image and the third image.

An electronic appliance is provided. The electronic appliance includes a communication interface, a memory storing at least one instruction, and a processor which is connected with the memory and the communication interface and controls the electronic apparatus. Here, the processor may, by executing the at least one instruction, based on an event for reading extended display identification data (EDID) stored in the memory at an external apparatus connected through the communication interface occurring, toggle a first signal related to the communication interface, and after the first signal is toggled, monitor a signal output from the external apparatus and identify whether the external apparatus failed to read the EDID information, and based on identifying that the external apparatus failed to read the EDID information, toggle a second signal related to the communication interface.

A mobile terminal (20), and in particular, a mobile terminal (20), a combined terminal device (30) and a method for splicing control of mobile terminals (20). For a splicable mobile terminal (20), according to a state determination instruction, the mobile terminal (20) is caused to selectively enter a master operating state or a slave operating state; when the mobile terminal (20) operates as a master, a display partitioning unit (a2) partitions the display content of the master according to the display screen resource of individual mobile terminals (20) in a combined terminal device (30), to obtain a plurality of pieces of partitioned display data corresponding to a plurality of the mobile terminals (20) in the combined terminal device (30), and sends corresponding partitioned display data to slaves; and in a case in which the mobile terminal (20) acts as a slave, upon reception of the partitioned display data from the master, a display switching unit (a3) displays the received partitioned display data. The content displayed by the master can be displayed by the slaves, and when there are a large number of slaves, the content can be displayed to a user on a relatively large screen composed of a plurality of slaves, satisfying people's demand for a large display area.

Provided is an image that is comfortably viewed and operated by a user. An electronic device acquires user information related to a relative position between a user and a display unit. Then, the electronic device transmits the user information to an information processing device. The information processing device includes a communication unit and a control unit. The communication unit receives the user information related to the relative position of the user and a display unit which is acquired by the electronic device from the electronic device. Further, the control unit performs control to decide a display mode of an image transmitted from a source device on the display unit on the basis of the user information received from the electronic device.

A video signal conversion method, a corresponding video signal conversion device and a display system including the video signal conversion device, by which low-resolution video signals can be converted and combined into a high-resolution video signal, such that a high-resolution image combined by low-resolution images can be displayed on an ultra-high definition display screen. The video signal conversion method includes: receiving in parallel a plurality of sub-frames divided from a low-resolution image of a video signal; performing image processing on each of the received sub-frames; and synthesizing the plurality of sub-frames after being subjected to the image processing into a high-resolution image frame and displaying the high-resolution image on a display device.

Provided are a mobile terminal having a plurality of display areas and a control method thereof. The mobile terminal includes a main body having a front surface, a side surface, and a rear surface, a display disposed on the front surface and extending from the front surface to the side surface, a wireless communication unit wirelessly communicating with an external device, and a controller receiving identification information of the external device in response to recognition of the external device, and controlling information output on the touch screen on the basis of the received identification information, wherein, on the basis of the identification information of the external device.

A display processing apparatus connected to a plurality of information processing terminals through a network, displays first image data received from a first information processing terminal of the information processing terminals on a display in a full-screen display mode in response to a switching request, transmits response information that includes non-display information indicating non-display of image data to a second information processing terminal other than the first information processing terminal in the full-screen display mode, and receives an update request from the second information processing terminal in response to the response information, the update request not including second image data to be transmitted from the second information processing terminal and including predetermined information having a data amount smaller than a data amount of the second image data.