Alps Alpine

An operating device capable of conducting a rotation operation and press operation is disclosed. The operating device includes a base; a rotation member installed on the base in a freely rotatable manner; a press member installed on the rotation member in a manner capable of freely sliding relative to the rotation member in an up-down direction; and a first elastic member disposed between the press member and the base in the up-down direction. In response to the press operation of the operating device being conducted, the press member is supported by the rotation member and slides relative to the rotation member in the up-down direction under the action of the first elastic member, and in response to the rotation operation of the operating device being performed, the rotation member rotates relative to the base in a state where the press member is supported by the first elastic member.

A loudspeaker includes: a diaphragm having a first end attached to a frame and a second end attached to a bobbin; magnetic circuitry arranged in a vicinity of the bobbin; a first magnet to vibrate the diaphragm based on a voice signal applied to a voice coil; a second magnet fixed to a rear surface of the first end of the diaphragm; a magnetic detector; a third magnet; and a holder to hold the magnetic detector and the third magnet. The holder is fixed to the frame to be positioned with respect to the second magnet by using a positioning portion used to fix the second magnet in place, and the magnetic detector is to detect displacement of the diaphragm based on a first magnetic field generated by the second magnet and a second magnetic field generated in a direction different from the first magnetic field by the third magnet.

A display apparatus includes: a decorative sheet that is transparent; and a display unit arranged on a back side of the decorative sheet. The display unit includes a display panel configured to display an image on a screen; a detector configured to detect an operator operation on the display panel; and control circuitry. The control circuitry controls a display of the display panel such that luminance of a boundary area of the screen is reduced upon an operation for shifting the display of the screen being detected by the detector.

A display panel drive mechanism (100; 100A) includes a first link mechanism (1) including a first arm member (11), a second arm member (12) and a third arm member (13) that are coupled to the first arm member, and a fourth arm member (14) coupled to the second arm member. The first arm member, the second arm member, and the fourth arm member are pivotally coupled to the display panel (200). The third arm member and the fourth arm member are pivotally coupled to a base portion (300) located behind the display panel. A maximum length (L1) of the fourth arm member is longer than a maximum length (L2) of the third arm member.

A display processing apparatus includes circuitry configured to execute link training for setting a transmission condition of video data prior to an operation of transmitting the video data from a transmitter to a receiver; detect an ambient temperature of at least one of the transmitter or the receiver; and set a transmission/reception interval of information in the link training based on the ambient temperature.

A display device configured to be capable of displaying an aerial image by using retroreflection includes: a light source; a retroreflective member; and an optical element disposed at a position where light from the light source is incident, in which the optical element includes: a plurality of reflective members formed using a plurality of slits; and a decorative layer disposed on a first reflective surface of each of the plurality of the reflective members, the first reflective surface being opposite to a second reflective surface of each of the plurality of the reflective members, the second reflective surface of each of the plurality of the reflective members reflects the light from the light source toward the retroreflective member, the first reflective surface reflects external light incident via the decorative layer, and the plurality of the slits transmit light retroreflected by the retroreflective member to form the aerial image.

A display apparatus capable of displaying an aerial image by utilizing retroreflection is provided. The display apparatus includes a light source; a retroreflective member; and an optical element disposed at a position where light from the light source is incident, the optical element including a plurality of reflective areas formed via a plurality of slits. The plurality of reflective areas reflect the light from the light source toward the retroreflective member, and the plurality of slits transmit light retroreflected by the retroreflective member to form an aerial image.

A display device includes: a translucent light-guiding substrate including a first main surface, an end surface intersecting the first main surface, and a second main surface located on an opposite side of the first main surface; a light source including a light emitting surface and arranged to face at least one of the second main surface or the end surface; and a reflective layer arranged on the first main surface in a region overlapping with the light source in a top view. The translucent light-guiding substrate includes a light diffusion and scattering portion. A pattern corresponding to the light diffusion and scattering portion is displayed in the top view.

A display device capable of displaying an aerial image by using retroreflection. The display device includes: a light source; a polarizing beam splitter arranged at a position on which light from the light source is incident; a retroreflecting member; a λ/4 plate arranged on a surface of the retroreflecting member; and a light attenuating filter arranged on the surface of the A/4 plate. The retroreflecting member receives light reflected by the polarizing beam splitter and transmitted through the light attenuating filter and the A/4 plate, and the polarizing beam splitter transmits light retroreflected by the retroreflecting member and transmitted through the λ/4 plate and the light attenuating filter to form the aerial image.

A display system includes a patterned covering surface having a plurality of holes; a display device having a display surface covered by the covering surface; and an image processing apparatus configured to process image data displayed on the display device. The image processing apparatus includes a correction data storage to store correction data generated by gradation-inverting a luminance distribution that appears on the covering surface when the entire display surface of the display device is displayed in a uniform color; and an image processor to correct the image data to be displayed on the display surface based on the correction data that is read from the correction data storage within a luminance dynamic range that is determined based on a transmittance of the covering surface and an image luminance of the image data.