A power-saving method for switching High Definition Multimedia Interface (HDMI) ports on a sink device is provided. The sink device has a first HDMI port initially being enabled for displaying and a second HDMI port being disabled for displaying. The power-saving method includes the steps of using the reference signals to locate the VSYNC active edge in each frame generated by a source device connected to the second HDMI port; turning on the power to the second HDMI port during a power-on region corresponding to the VSYNC active edge in each frame and turning off power otherwise; obtaining information related to a high bandwidth digital content protection (HDCP) in the power-on region; and displaying video data from the source device based on the HDCP information when enabling the second HDMI port connected to the source device.

A mode-switchable backlight and mode-switchable privacy display provide narrow-angle emitted light during a first mode and broad-angle emitted light in a second mode, the broad-angle emitted light being a combination of the narrow-angle emitted light and bidirectional emitted light. The mode-switchable backlight includes a first directional backlight and a second directional backlight. The first directional backlight is configured to provide the narrow-angle emitted light during both of the first mode and second mode, while the second directional backlight is configured to provide the bidirectional emitted light exclusively during the second mode. The mode-switchable privacy display includes an array of light valves configured to modulate the narrow-angle emitted light as a private displayed image during the first or privacy mode and to modulate broad-angle emitted light as a public displayed image during the second or public mode.

An electronic device is disclosed. An electronic device comprises a display, a communication circuit configured to communicate with a first peripheral device, a memory configured to store first authentication information associated with the first peripheral device, and a processor, wherein the processor is configured to control the electronic device to: broadcast a first message via the communication circuit, receive a connection request message from the first peripheral device receiving the first message, authenticate the first peripheral device based on the first authentication information associated with the first peripheral device in response to the reception of the connection request message, and transmit screen data being displayed on the display to the first peripheral device via the communication circuit based on the authentication being valid.

Disclosed are an electronic device and a control method for providing a security screen. In an electronic device according to various embodiments of the present document, when a specific application-associated event occurs in the electronic device while the electronic device is being connected to an external electronic device, a notification of event-associated information except for privacy information is provided through the external electronic device, so that a situation in which the privacy information stored in the electronic device is exposed to another user can be prevented.

An assembly juxtaposed with a computer display has rows and columns of movable louvers that move as the user's head moves to permit light from the display to reach the user's eyes but to screen light from the display in other directions, to reduce the risk of eavesdropping.

An information handling system includes a display device, a camera, and a processor. The camera captures an image including first and second observers in a field of view in front of the display device. Based on the captured image, the processor determines a first location of the first observer and a second location of the second observer. Based on the first and second locations, the processor determines a first set of pixels located within a primary field of view for the first observer, and a second set of pixels located within a second field of view for the second observer. The processor calculates a viewing legibility adjustment for the second set of pixels. Based on the viewing legibility adjustment, the processor adjusts a contrast ratio for the second set of pixels to below a viewing threshold level.

A mode-switchable backlight and privacy display provide narrow-angle emitted light during a first mode and broad-angle emitted light in a second mode, the broad-angle emitted light being a combination of the narrow-angle emitted light and bidirectional emitted light. The mode-switchable backlight includes a first directional backlight and a second directional backlight. The first directional backlight includes an array of narrow-angle emitters configured to provide the narrow-angle emitted light during both of the first mode and second mode, while the second directional backlight includes an array of bidirectional emitters configured to provide the bidirectional emitted light exclusively during the second mode. The mode-switchable privacy display includes an array of light valves configured to modulate the narrow-angle emitted light during the first mode and to modulate broad-angle emitted light during the second mode.

There is provided an information processing device including a user information management unit that sets a user in a window in which an operation screen of an application is displayed and grants at least one of execution authority of the application set in the window according to the user and browsing authority of content in the window to the window.

An information processing apparatus includes a generation unit and an instruction unit. The generation unit generates a display image including information on speech or action of a target person, based on history information that the target person has made speech or action. The instruction unit instructs a display device, which displays an image of a virtual space so as to be superimposed in a real space, to display the generated display image as the image of the virtual space.

A source device for transmitting content to a sink device is provided. The source device may include an interface configured to perform high-bandwidth digital content protection (HDCP) authentication with the sink device, and a controller configured to determine an HDCP version supported by the sink device, convert the content so as to be encrypted in the HDCP version supported by the sink device in response to a determination that another HDCP version applied to the content is not supported by the sink device, encrypt the converted content in the HDCP version supported by the sink device, and control the interface to transmit the content to the sink device.