A luminous keyboard includes a keyswitch module and an optical module disposed under the keyswitch module. The keyswitch module includes a plurality of keyswitches. The optical module includes a mask film and a light guide sheet. The mask film has a mask pattern. The mask pattern defines a plurality of light-transparent regions respectively corresponding to the plurality of keyswitches, and an outer light-transparent region of the plurality of light-transparent regions has a boundary. The light guide sheet has a light-exit edge. The vertical projection of the light-exit edge of the light guide sheet on the mask film at least partially falls within the outer light-transparent region and is not parallel to the boundary.

Systems and methods having a touchless operating panel with buttons and an electronic circuit (EC). The system including a proximity sensor (PS) associated with an associated button and positioned proximate thereto. The PS arranged to generate a button detection zone around the associated button and detect a presence within the button detection zone. When the PS detects a presence of an object within the button detection zone in a time period, the EC receives proximity values about the detection from the PS. The EC detects if activation of the PS is intentional or unintentional, based on inputting into an activation assessment module, the received proximity values and any other proximity values received from one or more other PSs. When a detection is made that the PS is intentionally activated regarding the presence of the object within the button detection zone. The EC generates and emits a command action.

A touch sensor system includes a sensing area having a periphery and a plurality of light sources and a plurality of analog optical detectors arranged about the periphery of the sensing area. The system further includes addressing circuitry that selectively drives each of the plurality of light sources with a modulated signal and selectively activates the plurality of analog optical detectors, and a controller that receives a collective detector output from the plurality of analog optical detectors. The outputs from the analog optical detectors may be a time multiplexed to provide the collective detector output. Each optical detector may include a photodiode; a first transistor coupled to the photodiode in a current amplifier configuration that generates an amplified current output as a function of a photodiode current; and enable circuitry to enable and disable the optical detector as a function of an enable input signal.

An input assembly comprises a plurality of visual indicators differentiating between key regions on a plane. The input assembly also comprises a plurality of sensors, each arranged behind one of the key regions, and configured to determine a linear distance of the object from each of the sensors when the object is coming into proximity with the plane. Processing circuitry is configured to, based on input from the sensors, determine a location of a selected key region that the object is approaching; instruct changing of a display of at least one of the plurality of visual indicators to highlight the selected key region with a first visual indication when an object approaches within the first predefined proximity of the selected key region; select, from among a plurality of values, a value that is associated with the selected key region, and output the selected value as a user-selected keypad value.

The present application provides an intelligent control system for touch switch based on infrared sensor detection, which comprises: a position determination module, for setting infrared sensors in the first position, the second position, the third position, and the fourth position respectively, which are used to detect whether a person passes the current position; a time statistics module, for calculating the total time consumed by the target person passing through the first position, the second position, and the third position based on the detection result of those infrared sensors; a time determination module, for calculating the target time consumed by the target person passing from the third position to the fourth position; an intelligent control module, for selecting whether to turn on the light guide line from the fourth position to the position of the touch switch.

The invention relates to a display device (210) which is provided with a display (212) and a backlighting unit (218) arranged behind the display (212). The backlighting unit (218) comprises a light guide plate (222) which has an upper light guide plate element (222a) and a lower light guide plate element (222b). Backlight (230) of light sources (220) is fed laterally into the upper light guide plate element (222a), which is emitted from the light emission side (228) of the light guide plate (222) after deflection and scattering within the light guide plate element (222a). Sensor radiation is fed into the lower light guide plate element (222b) by means of proximity sensor system transmitter elements (236), wherein said sensor radiation is likewise emitted from the light emission side (228) of the light guide plate (222) after reflection and scattering. Both light guide plate elements (222a, 222b) are optimized for the wavelengths of the radiation which is fed into the latter. The lateral arrangement of the proximity sensor system transmitter elements (236) and the light sources (220) results in a space-saving arrangement. After reflection on an object located in front of the display (212), the sensor radiation reaches the proximity sensor system receiver elements (238).

Embodiments may take the form of a system having a user input device and a first sensor coupled to the user input device. The first sensor is configured to sense touch on a surface of the user input device. The system may also include a second sensor in communication with the surface of the user device configured to sense wetting of a user's fingerprint on the surface. The system has a processor coupled to the first and second sensors and configured to estimate an amount of force applied by the user's fingerprint based at least in part upon the sensed wetting of the user's fingerprint.

An input device and an electronic apparatus are provided. The input device includes an input region and a signal processing circuit. The input region includes a first press sensing optical fiber, a second press sensing optical fiber and a key region including a press layer. The first press sensing optical fiber is on a side of the press layer opposite to a user operation side and extends in a first direction. The second press sensing optical fiber is on a side of the first press sensing optical fiber distal to the press layer and extends in a second direction intersecting the first direction. The signal processing circuit is configured to transmit input optical signals to/receive output optical signals from the first and second press sensing optical fibers, and determine press information of the key region according to the output optical signals.

A semiconductor device package is provided, which includes a carrier, an emitter and a first transparent encapsulant. The carrier has a first surface. The emitter is disposed on the first surface. The first transparent encapsulant encapsulates the emitter. The first transparent encapsulant includes a body and a lens portion. The body has a first planar surface. The lens portion is disposed on the body and has a first planar surface. The first planar surface of the lens portion is substantially coplanar with the first planar surface of the body.

A keyswitch structure includes a base plate, a keycap, a scissors support connecting the keycap and the base plate, a linking support rotatably disposed on the base plate, a movable part movably disposed relative to the base plate, and a magnetic part on the movable part. The linking support includes a magnetic portion and a driving portion. The magnetic part and the magnetic portion produce a magnetic attraction force therebetween. When the movable part is located at a first position, the magnetic part is located under the magnetic portion, and the magnetic attraction force drives the keycap through the linking support to move away relative to the base plate. When the movable part moves from the first position to a second position, the magnetic part moves away relative to the magnetic portion, so that the magnetic attraction force decreases so as to make the keycap move toward the base plate.