An input/output expander for a mobile device has a communications module connectible thereto. Output display signals from the mobile device and input signals to the mobile device are relayed between the mobile device and the bi-directional projection unit by the communications module. A display output projector is connected to the communications module, and the output display signal from the mobile device is converted to a first series of light outputs corresponding to the output display signal. The expander has a virtual keyboard projector generating a second series of light outputs corresponding to a virtual keyboard key arrangement. A key input sensor with a sensing coverage area encompassing the virtual keyboard key arrangement detects user input at specific positions thereon. A key input value corresponding to a specific key of the virtual keyboard key arrangement is generated.

A human-machine interaction system is used with a projector system, and includes an interactive terminal. The interactive terminal has a projection assembly for operating an application system and a control panel for issuing instructions and/or inputting data to the application system according to functional requirements. The human-machine interaction system accomplishes a complex human-machine interaction function by means of multi-mode design for automatic switching between a touch mode and a full keyboard mode of a control panel. In addition, the one-to-one correspondence combination relationship between devices is broken by means of contact detection, so that different control panels can control different intelligent conference projection systems, thereby achieving the free pairing and connection of devices.

A system for displaying information indicative of driving conditions, to a driver, using a smart ring are disclosed. An exemplary system includes a smart ring with a ring band having a plurality of surfaces including an inner surface, an outer surface, a first side surface, and a second side surface. The system further includes a processor, configured to obtain data from a communication module within the ring band, or from one or more sensors disposed within the ring band. The obtained data are representative of information indicative of one or more driving conditions to be displayed to the driver. The smart ring also includes a projector module display disposed on at least one of the plurality of surfaces, and configured to present information indicative of the one or more driving conditions.

A virtual image display apparatus includes a display device serving as an image forming unit, an image optical system including a first mirror member serving as an outer mirror member and receiving imaging light from the display device, and a partially reflecting type mirror portion reflecting imaging light emitted from the image optical system toward a position of an exit pupil. The first mirror member serving as the outer mirror member and the partially reflecting type mirror portion are integrated.

A portable device (e.g., a wireless device such as a cell phone) is provided with a flexible keyboard and a flexible display screen. Such flexible components may be stored in the housing of the portable device when not in use. The flexible display screen and flexible keyboard may be expanded from the housing when the flexible components are utilized by a user. Non-flexible display and input components may be provided on the exterior of the portable device such that the device may be used, in some form, while the flexible components are stored. In one embodiment, a portion of the flexible display (or flexible keyboard) may be utilized when the flexible display (or flexible keyboard) is stored in said first housing.

A transparent display can allow viewing of real world content through the display, while rendering virtual content to the display. A display may take the form of a touch-sensitive display, allowing user input directly through physical interaction with the display. A display may include a pair of major outer-most faces and a pair of inner faces, one of the inner faces angled to reflect light from a projector, outward via one of the major outer-most faces. The gap may advantageously be formed via a pocket extending inwardly from an edge of an optical substrate that comprises the display.

Systems, devices, and methods provide for the prevention of laser light escaping a foldable wearable heads-up display (WHUD) when the WHUD is folded. For a WHUD that adopts the form factor of conventional eyeglasses or sunglasses, enabling the WHUD to fold “like glasses” can cause an interruption in the optical path of display light and enable display light to escape into the external environment. This can be hazardous when laser light is used to provide display light. Systems, devices, and methods that automatically detect, sense, and/or respond to the fold configuration state of a WHUD are described. When the WHUD is unfolded a laser-based display operates normally. When the WHUD is folded the laser-based display is disabled to prevent laser light from projecting out of the WHUD through the folded region. Proximity sensors and laser light containing mechanisms also may be employed as alternative or supplementary safety elements.

Apparatuses, methods, systems, and program products are disclosed for projecting interfaces on a surface. An apparatus includes a processor and a memory that stores code executable by the processor. The code is executable by the processor to scan a surface around a display device connected to an electronic device, determine a usable area of the scanned surface for projecting at least one graphical interface of the electronic device, and project the determined at least one graphical interface on the usable area of the scanned surface using at least one projector.

An electronic apparatus for displaying an image by using visual afterimage of a light source, the apparatus comprises a communication unit performing data communication to a light source; a control unit controlling light emission of the light source; a body storing the communication unit and the control unit; and a fixing unit for attaching the body on a body of a user, wherein the light source provides an image based on changes in spatial position of the light source.

A portable device (e.g., a wireless device such as a cell phone) is provided with a flexible keyboard and a flexible display screen. Such flexible components may be stored in the housing of the portable device when not in use. The flexible display screen and flexible keyboard may be expanded from the housing when the flexible components are utilized by a user. Non-flexible display and input components may be provided on the exterior of the portable device such that the device may be used, in some form, while the flexible components are stored. In one embodiment, a portion of the flexible display (or flexible keyboard) may be utilized when the flexible display (or flexible keyboard) is stored in said first housing.