Described is an interface (10) for a control device having a front face (11) and a rear face (12) and comprising a plurality of layers grouped in a covering assembly (13) and a tactile assembly (14) extending between the front face (11) and the rear face (12); The covering assembly (13) comprises, in sequence:—a protective layer (15) having the front face (11); —a masking layer (16) which directly or indirectly covers a second face of the protective layer (15). The said tactile assembly (14) comprises—an operative layer (17) with sensitive pads (19) reactive to touch and permeable to light, transparent or perforated; —a matrix layer (21), opaque and equipped with shaped portions (23) which are either permeable to light or transparent or perforated and aligned with the sensitive pads (19). The sensitive pads (19) and/or the shaped portions (23) are configured to form signs (B) designed to generate luminous symbols visible after backlighting of the interface (10). The masking layer (16) has a permeability to light such that the signs (B) are not visible through said masking layer (16) when said front face (11) is illuminated by a light radiation resulting in a luminance not exceeding 4000 lx and the interface (10) is not backlit.

A safety switch includes a detection unit, an output unit, an input unit; and a display unit. The detection unit is configured to detect presence or absence of abnormality. The output unit is configured to output an abnormality detection signal indicating a detection result of the presence or absence of the abnormality. The input unit is configured to input a display control signal. The display unit is configured to perform display based on the display control signal.

An input device includes a display unit that displays an aerial image, and a detection unit that detects a user operation related to the aerial image. The display unit includes a light guide plate disposed between a half mirror and a retroreflective plate and a light source irradiating the light guide plate. The display unit displays the aerial image of a light diffusion surface formed on the light guide plate in response to incident light. When the user operation related to the aerial image is detected, the display unit turns off the light source to notify a user of input confirmation.

An user interface device includes a lens with a top surface and a bottom surface, where the bottom surface includes at least one graphic that is visible through the top surface of the lens. The user interface device further includes a transparent circuit film with a top surface and a bottom surface, at least one light emitting diode (LED), at least one silver conductor, and a layer of transparent pressure-sensitive adhesive that secures the bottom surface of the lens to the top surface of the transparent circuit film.

The present inventors have recognized that an electrical switch for opening doors in buildings, calling elevators, and the like can be improved to require less physical contact, larger activation area, and multiple activation methods, with increased reliability, by utilizing a piezoelectric sensor specifically arranged between rigid, parallel mounting plates in which one of the plates (an inner plate) is rigidly fixed to prevent movement while the other plate (an outer plate) is accessible for receiving physical contact. By rigidly fixing the inner plate, such as by mounting to a wall or bollard, the sensor can react with sensitivity upon an application of less pressure on the outer plate. Such pressure compresses the sensor between the plates to produce an electrical signal. A controller receiving the signal can, in turn, execute to open a door, call an elevator and/or activate a light or sound to provide feedback.

A number of user interface devices are described. In one example, a user interface device includes a lens having a graphic visible through the lens, a transparent circuit film comprising a top surface and a bottom surface, a reflector film bonded to the bottom surface of the transparent circuit film, the reflector film including an embossed area which defines a pocket between the reflector film and the bottom surface of the transparent circuit film, a light emitting diode (LED) bonded to the bottom surface of the transparent circuit film and positioned within the pocket between the reflector film and the bottom surface of the transparent circuit film, and a layer of transparent pressure-sensitive adhesive interposed between the bottom surface of the lens and the top surface of the transparent circuit film.

A control panel having: a trim element having a first outer face and a first inner face; a support element having a second outer face oriented towards the first inner face of the trim element and a second inner face opposite to said second outer face; and a group of force sensors configured for detecting a control force applied to the first outer face within a control area. The support element has, within a detection area extending around the group of control areas, a mechanical weakening formed by a recess in the second inner face.

A floating image generation device is disclosed, which includes a light source, an image generation module, and a floating image generation unit. The image generation module is disposed above the light source and includes a shading unit and an image generation unit. The shading unit is capable of changing light transmissivity state. The image generation unit is disposed above the shading unit. The floating image generation unit is disposed above the image generation unit. The light source emits a light passing through the shading unit, the image generation unit, and the floating image generation unit to generate a first floating image when the shading unit is in a first light transmissivity state. The light source emits a light passing through the shading unit, the image generation unit, and the floating image generation unit to generate a second floating image when the shading unit is in a second light transmissivity state.

A touch indicating cover includes a light-guide plastic piece, a printed circuit layer, an ink layer, a passivation layer, and a light-emitting component. The light-guide plastic piece has a first surface and a second surface opposite to each other, wherein the second surface of the light-guide plastic piece comprises a plurality of microstructures. The printed circuit layer is disposed on the first surface of the light-guide plastic piece. The ink layer is disposed on the printed circuit layer and the first surface of the light-guide plastic piece, wherein the ink layer comprises a light-emitting pattern region corresponding to the microstructures. The passivation film is disposed on the ink layer. The light-emitting component is embedded in the first surface of the light-guide plastic piece and connected to the printed circuit layer, wherein the light-emitting component is disposed adjacent the light-emitting pattern region.

A touch indicating cover includes a light-guide plastic piece, a printed circuit layer, an ink layer, a passivation layer, and a light-emitting component. The light-guide plastic piece has a first surface and a second surface opposite to each other, wherein the second surface of the light-guide plastic piece comprises a plurality of microstructures. The printed circuit layer is disposed on the first surface of the light-guide plastic piece. The ink layer is disposed on the printed circuit layer and the first surface of the light-guide plastic piece, wherein the ink layer comprises a light-emitting pattern region corresponding to the microstructures. The passivation film is disposed on the ink layer. The light-emitting component is embedded in the first surface of the light-guide plastic piece and connected to the printed circuit layer, wherein the light-emitting component is disposed adjacent the light-emitting pattern region.