A display device and a light source are provided. The display device includes a display panel and a first photonic crystal layer arranged at a light-emitting side of the display panel. The first photonic crystal layer is configured to enable incident light to exit along a Z direction, the Z direction being a thickness direction of the first photonic crystal layer.

[Problem] In a case where information is projected and displayed, confidentiality is ensured by controlling display according to a state of an object. [Solution] A display processing apparatus according to the present disclosure includes: a state acquisition unit configured to acquire a spatial state of an object; and a display control unit configured to control display of projected information according to the state of the object including a posture of the object. With this configuration, in a case where information is projected and displayed, it is possible to ensure confidentiality by controlling display according to the state of the object.

The technology described herein visibly depicts hidden message traits to help users determine whether an email is genuine or deceptive. The hidden message traits are revealed by identifying and changing attributes that keep the hidden traits from being displayed in a rendered message. Spam messages, phishing messages, and messages that include or link to malicious programs (e.g., malware, ransomware) are examples of unwanted messages that can harm a recipient. These messages often rely on deception to get past email filtering systems and to trick a user into acting on content in a message. The deception often involves including hidden traits in a message that fool an automated filtering system. The technology described herein shows the visible traits to a user by including them in the rendered version of the message.

Provided is an information processing apparatus, including: a line-of-sight detection unit configured to detect lines of sight of a plurality of users with respect to presentation information; and an area determination unit configured to determine, on the basis of the detected lines of sight of the plurality of users, a shared area that is visually recognized by the plurality of users to share information and a confidential area that is not visually recognized by another user to keep information of each user confidential.

Facial recognition-based authentication comprises obtaining a first image of a target object, updating projection information associated with a display by a display device, obtaining a second image of the target object, the second image being an image of the target object after the projection information is updated, obtaining an image difference data based at least in part on the first image and the second image, and determining whether the target object is a virtual object based at least in part on the image difference data.

According to one implementation, a floating image display system includes a computing platform including a central processing unit (CPU), a graphics processing unit (GPU), and a system memory storing a software code. The system also includes one or more display screens controlled by the GPU, and a rotor coupled to the one or more display screens and controlled by the CPU. The CPU executes the software code to render a two-dimensional (2D) graphic on the one or more display screens using the GPU, and to spin the rotor and the one or more display screens about a vertical axis parallel to a display surface of the one or more display screens at a predetermined spin rate to generate a floating image of the 2D graphic. The floating image appears to be a three-dimensional (3D) floating image of the 2D graphic to a user viewing the floating image.

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.

Methods and systems for acquiring a freehand or cursive signature on a secondary device with a touch receiving surface for use on a primary device without a touch receiving surface are provided. The primary device sends a message to the secondary device requesting a signature. The user responds by signing her name, using a finger or stylus, on a touch receiving surface. As the user signs her name, the signature is displayed on the secondary device and transmitted to the primary device. The signature may then be stored, displayed, analyzed, or validated by the primary device.

A method for displaying a secure or forgery-proof identity indicator on a screen using a display controller displaying the content of a memory unit of the graphic circuit on the screen, includes: drawing, by a client application, a graphic to be displayed on the screen into a client-specific region of the memory unit of the graphic circuit; drawing an identity indicator belonging to the client application into a memory region outside of the client-specific region; displaying the client-specific region of the memory unit of the graphic circuit on the screen; and simultaneously displaying the identity indicator from the memory region outside of the client-specific region on the screen. For displaying the identity indicator from the memory region outside of the client-specific region, access is only possible from the display controller such that the display of the identity indicator is secure or forgery-proof.

A method for processing display data is implemented by an electronic data processing device. The display data represents at least one piece of information to be displayed on a screen. The method includes: for obtaining at least one reference image representing the at least one piece of information to be displayed; and generating at least one altered image from the reference image and from at least one alteration parameter.