A keyboard includes a frame board, a base board secured to the frame board, a membrane circuit board in a space defined by the frame and base boards, a support board on the membrane circuit board, a switch board on the support board, keys on the switch board, a lithium battery on the base board, a control circuit board on the lithium battery, a projection device in the space defined by the frame and base boards, an outer screen on the right side of the frame board, an inner screen on the control circuit board, lights on the frame board, vent-holes on the frame board, first function keys and a second function key on the frame board, a recess on the right side of the base board with the lithium battery therein, a projection device below the vent-holes, and a projection hole aligned with the projection device.

Aspects of the present disclosure are directed to systems, apparatuses, and methods for the projection of images onto keycaps of a computer keyboard.

A method for displaying an on-screen keyboard is applied a computing device connected to a physical keyboard and a screen, where the physical keyboard includes a plurality of keycaps capable of responding to a touch on the keycap to output a first key signal and responding to a keystroke on the keycap to output a second key signal to the computing device, and the method for displaying an on-screen keyboard includes: displaying an on-screen keyboard on a topmost layer of a display image of the screen; reading the first key signal output by the physical keyboard corresponding to the touch on the keycap; and displaying, according to the first key signal, a first key mark at a position corresponding to the touched keycap on the on-screen keyboard.

A controlling device has a configurable key. An overlay, such as a sticker, is provided to the configurable key and includes an indicia representative of media content and machine readable data indicative of an identity of the media content represented by the indicia. A memory of the controlling device stores a correspondence between the configurable key and data indicative of a source of the media content. Upon activation of configured, configurable key, the controlling device uses select command codes from a library of command codes and the correspondence between the configurable key and the data indicative of the source of the media content to transmit one or more commands for causing one or more appliances to access the source of the media content.

Embodiments are directed to an electronic device having a hidden or concealable input region. In one aspect, an embodiment includes an enclosure having a wall that defines an input region having an array of microperforations. A light source may be positioned within a volume defined by the enclosure and configured to propagate light through the array of microperforations. A sensing element may be coupled with the wall and configured to detect input received within the input region. The array of microperforations are configured to be visually imperceptible when not illuminated by the light source. When illuminated by the light source, the array of microperforations may display a symbol.

A keyboard includes a bottom plate, a circuit board disposed on the bottom plate, and a plurality of keys disposed on a side that is of the circuit board and that is away from the bottom plate. Each key includes a keycap, a rise-and-fall component connecting the keycap to the bottom plate, and an electronic ink screen fastened on a side that is of the keycap and that is away from the rise-and-fall component. A first electric conductor connected to the electronic ink screen is disposed on the keycap, a second electric conductor is disposed on the rise-and-fall component, and a third electric conductor is disposed on the bottom plate. A signal line used to supply power to the electronic ink screen is disposed on the circuit board.

Embodiments are directed to an electronic device having a hidden or concealable input region. In one aspect, an embodiment includes an enclosure having a wall that defines an input region having an array of microperforations. A light source may be positioned within a volume defined by the enclosure and configured to propagate light through the array of microperforations. A sensing element may be coupled with the wall and configured to detect input received within the input region. The array of microperforations are configured to be visually imperceptible when not illuminated by the light source. When illuminated by the light source, the array of microperforations may display a symbol.

Embodiments are directed to an electronic device having a hidden or concealable input region. In one aspect, an embodiment includes an enclosure having a wall that defines an input region having an array of microperforations. A light source may be positioned within a volume defined by the enclosure and configured to propagate light through the array of microperforations. A sensing element may be coupled with the wall and configured to detect input received within the input region. The array of microperforations are configured to be visually imperceptible when not illuminated by the light source. When illuminated by the light source, the array of microperforations may display a symbol.

A keyboard includes a bottom plate, a circuit board disposed on the bottom plate, and a plurality of keys disposed on a side that is of the circuit board and that is away from the bottom plate. Each key includes a keycap, a rise-and-fall component connecting the keycap to the bottom plate, and an electronic ink screen fastened on a side that is of the keycap and that is away from the rise-and-fall component. A first electric conductor connected to the electronic ink screen is disposed on the keycap, a second electric conductor is disposed on the rise-and-fall component, and a third electric conductor is disposed on the bottom plate. A signal line used to supply power to the electronic ink screen is disposed on the circuit board.

Aspects of the present disclosure are directed to systems, apparatuses, and methods for the projection of images onto keycaps of a computer keyboard.