Disclosed herein is a display apparatus including a curved display module having a curved surface bent in a y-axis direction, a surface overlay disposed on the front surface of the curved display module and having a refractive index differing from an air layer, at least one IR emitter arranged on the upper long side or the lower long side of the surface overlay and emitting IR light, and at least one first IR receiver arranged on the long side opposite the at least one first IR emitter and receiving the IR light emitted by the at least one IR emitter. The curved display apparatus may more accurately and effectively recognize touch input and thus, user convenience may be improved.

Provided is a display substrate, which includes a base substrate, a circuit structure layer disposed on the base substrate, multiple ultrasonic sensing elements and multiple micro light-emitting elements. The multiple ultrasonic sensing elements are disposed on a side of the circuit structure layer away from the base substrate, and are electrically connected to the circuit structure layer, and the multiple light-emitting elements are disposed on the side of the circuit structure layer away from the base substrate, and are electrically connected to the circuit structure layer. An orthographic projection of the multiple ultrasonic sensing elements on the base substrate does not overlap with an orthographic projection of the multiple micro light-emitting elements on the base substrate.

The disclosure provides an approach for populating a virtual environment with objects. In one embodiment, an editing application may track a handheld device using sensor data from a camera, by following an image displayed on the handheld device's screen. The editing application then updates the position of an object in the virtual environment according to the tracked position of the handheld device. Initially, the handheld device may be placed at a fixed location for calibration purposes, during which the editing application initializes a mapping between the virtual and physical environments. To add an object to the virtual environment, a user may select the object on the handheld device. The user may then place the object at a desired location and orientation in the virtual environment by moving the handheld device in the physical environment.

A portable communication device includes: a foldable housing, a flexible display accommodated in the housing and including a first display area that remains substantially flat in a state in which the housing is folded and a second display area that is bendable as the housing is folded, a support located between the flexible display and the housing and including a first area corresponding to the first display area and having a first flexibility and a second area corresponding to the second display area and having a second flexibility greater than the first flexibility, wherein an opening is formed in the first area, and a sensing module accommodated in the housing and including a light receiving sensor at least partially aligned with the opening to sense light passing through the opening.

A projector acquires the distance from the projector to a screen. When the acquired distance is short, the projector increases the shutter speed of an electronic shutter of an imaging section, whereas when the acquired distance is long, the projector decreases the shutter speed of the electronic shutter of the imaging section. A pointer outputs infrared light for a predetermined period, and the imaging section of the projector captures the infrared light outputted by the pointer at the set shutter speed and identifies the position of the pointer.

A device comprising a touchscreen and a camera for imaging a reflection of the touchscreen by a cornea of a user operating the device is provided. The device is configured for displaying a user-interface element on the touchscreen and detecting an interaction by a finger of a hand with the user-interface element. The device is further configured for, in response to detecting the interaction, acquiring an image of the reflection of the touchscreen from the camera, determining which finger of the hand is used for interacting with the user-interface element, and performing an action dependent on the finger used for the interaction. By also assigning a meaning to the finger which is being used for interacting with touchscreen-based devices, such that different actions are performed dependent on the finger used for the interaction, embodiments of the invention support simpler, faster, and more intuitive, user interaction.

A device comprising a touchscreen and a camera for imaging a reflection of the touchscreen by a cornea of a user operating the device is provided. The device is configured for displaying a user-interface element on the touchscreen and detecting an interaction by a finger of a hand with the user-interface element. The device is further configured for, in response to detecting the interaction, acquiring an image of the reflection of the touchscreen from the camera, determining which finger of the hand is used for interacting with the user-interface element, and performing an action dependent on the finger used for the interaction. By also assigning a meaning to the finger which is being used for interacting with touchscreen-based devices, such that different actions are performed dependent on the finger used for the interaction, embodiments of the invention support simpler, faster, and more intuitive, user interaction.

A video display system includes a light source configured to generate light and a substrate having a plurality of pixels deposited on a first side of the substrate. Each of the pixels is formed from a plurality of photo-luminescent dyes, and the light source is configured to project light onto the first side of the substrate to illuminate at least a subset of the photo-luminescent dyes in a raster pattern to generate an image. In another embodiment omitting the substrate, the photo-luminescent dyes forming the pixels are deposited directly onto a screen.

A touch display screen includes a display panel, a touch-sensing part, a biosensor and a controller. The touch-sensing part is disposed on a light emitting side of the display panel and has a touch-sensing surface. The touch-sensing part includes a light-emitting device and a light receiver. The light-emitting device is used to provide at least one positioning light and at least one high-energy light. The light receiver is used to detect a change of the positioning light on the touch-sensing surface in response to a touch action and determine the position on which the touch action occurs on the touch-sensing surface. The biosensor is used to determine whether a living body getting close to the touch-sensing surface. The controller is used to drive the light-emitting device to selectively provide the positioning light and/or the high-energy light to the touch-sensing surface according to the determinations of the biosensor.

A touch display screen includes a display panel, a touch-sensing part, a biosensor and a controller. The touch-sensing part is disposed on a light emitting side of the display panel and has a touch-sensing surface. The touch-sensing part includes a light-emitting device and a light receiver. The light-emitting device is used to provide at least one positioning light and at least one high-energy light. The light receiver is used to detect a change of the positioning light on the touch-sensing surface in response to a touch action and determine the position on which the touch action occurs on the touch-sensing surface. The biosensor is used to determine whether a living body getting close to the touch-sensing surface. The controller is used to drive the light-emitting device to selectively provide the positioning light and/or the high-energy light to the touch-sensing surface according to the determinations of the biosensor.