Abstract: Provided is a thin liquid surface detecting apparatus wherein a thickness of a holder is suppressed. A liquid surface detecting apparatus is provided with: a holder rotatably held to a main body section; a magnet fixed to the holder; an arm, which connects the holder and a float floating on the liquid surface of a liquid, and which converts an up-and-down motion of the float into a rotation motion of the holder; and a magnetic detecting element, which is positioned at a rotation center portion of the holder, and is fixed to the main body section such that the magnetic detecting element intersects a magnetic flux of the magnet, and which detects a magnetic change generated with displacement of the magnet and converts the change into electrical signals. The liquid surface detecting apparatus detects the liquid surface on the basis of the electrical signals transmitted from the magnetic detecting element.

Abstract: A liquid level detection device is configured so as to reduce or eliminate the contact between electrical cords led out of a detection section. A liquid level detection device is provided with: a detection section which detects the position of a liquid surface on the basis of the rotation of a rotation section rotating as a float is displaced; a plate-like mounting plate section, one surface of which is a mounting surface to which the detection section is mounted; a flange section which is mounted to a tank for containing liquid; and first and second electrical cords which are led out of the detection section toward the flange section. A branch section which comprises a through-hole is provided in the mounting plate section. The second electrical cord passes through the branch section and is routed around from the mounting surface side of the mounting plate section to the back surface side thereof.

Abstract: A liquid crystal display device less influenced by static electricity comprises a liquid crystal display element which forms a display part having inner surfaces of a pair of insulating substrates provided with transparent electrodes; a circuit substrate conductively connected to the liquid crystal display element via a lead terminals; and a conductive part formed to surround the transparent electrode. The conductive part is provided on the insulating substrate so as to avoid the positions where the lead terminals are arranged. Further included are a display panel through which the display part is visible; a first earth terminal conductively connected a first conductive pattern of the conductive part and in contact with the display panel; and a second earth terminal of which is conductively connected to a seventh conductive pattern of the conductive part to a grounding part.

Abstract: Positional error (erroneous display) of a virtual image displayed in correspondence to a specific object in a scenery outside a vehicle is suppressed so as to enable a viewer to recognize information without a sense of discomfort. A forward information acquisition unit estimates the position of a specific object outside a vehicle, and a first display means generates an information picture about the specific object. A picture position adjustment means adjusts the position at which the information picture is projected in accordance with the position of the specific object estimated by the forward information acquisition unit. A behavior detection means detects a behavior of the vehicle, and the picture position adjustment means corrects the position at which the information picture is projected on the basis of the vehicle behavior detected by the behavior detection means.

Abstract: Provided is a head up display device with which it is possible to adjust the projection location of display light depending on the height of the observer's point of view, without moving the virtual image in the vertical direction. This head up display device is provided with: a case which retains a display and a concave mirror in a prescribed positional relationship; a first driving means which rotates the concave mirror; a second driving means which moves the case frontward and rearward; and a control means which operates the first and second drive means in accordance with information about the viewpoint position of the observer, and adjusts the projection location of display light (L) on front glass depending on the height of the observer's point of view.

Abstract: Provided is a display device that is exceptionally easy to assemble. A display device includes an electroconductive housing. A case body accommodates the display device. A connecting member causes electrification between the housing of the display device and a grounding part of a circuit substrate. The connecting member has a base part that contacts the housing, and an elastic contact armature that contacts the grounding part of the circuit substrate when the circuit substrate is secured to the case body. A securing member secures the display device to the case body so that the base part is held between the housing and the case body. The case body has an elastic locking armature for securing the circuit substrate. The case body has a through-hole through which the elastic contact armature of the connecting member is inserted.

Abstract: Provided is a display device for a vehicle such that the life of display elements can be made long even when used in a high temperature environment and, further, unpleasant sensations due to changes in brightness of display images can be prevented. A control unit (90) provides a display period (Fa) in which an illumination control unit (91) turns on light sources (11), and a display control unit (92) generates a display image (M) in display elements (30) within a frame (F) that constitutes the display image (M) on the basis of a display image signal and a non-display period (Fb) in which the illumination control unit (91) turns off all light sources (11). When the display control unit (92) changes the display period proportions (A) for mirrors (E) for the display elements (30) according to prescribed conditions, drive currents (I) and drive periods (H) for the light sources (11) are changed simultaneously such that brightness is not changed.

Abstract: A scanning-type projection device is provided with an emitted-light-intensity control unit for controlling the light intensity of a laser light emitted by a laser light source unit, a polarization direction control unit for controlling the polarization direction of the laser light, a scanning unit for scanning the laser light and generating a display image, and a divergence unit on which the laser light scanned by the scanning unit is incident. The emitted-light-intensity control unit has a polarization control element for controlling the polarization state of the laser light, and a polarizing plate on which the laser light emitted from the polarization control element is incident, and the polarization direction control unit adjusts the polarization direction of display light incident on a projection surface by controlling the polarization direction of the laser light emitted by the emitted-light-intensity control unit.

Abstract: A vehicle information provision device comprises an on-board device having a device unit with a display unit that displays each type of vehicle status to a user, and a first control means that operates the display unit; and a communications unit that communicates between the device unit and the external device that outputs external information about the vehicle to the device unit. The communications unit is configured so as to be connectable to the device unit via an attachment/detachment means, and outputs to the device unit signals including at least either a video signal or an audio signal, as the external information for the vehicle, when the device unit is connected to the communications unit via the attachment/detachment means.

Abstract: Disclosed is a power supply circuit for vehicles, which can continuously supply a constant voltage without a complicated circuit configuration, even during a time when a surge voltage is applied (abnormal voltage time). The power supply circuit is provided with: a constant voltage circuit, which is connected to a battery mounted in a vehicle, and which outputs a predetermined voltage; a surge cut circuit, which is provided with a Zener diode and a transistor for protecting the constant voltage circuit; and a switching circuit, which is disposed between the constant voltage circuit and the surge cut circuit, and which performs on/off switching of output to the constant voltage circuit. The power supply circuit is also provided with a feedback line that connects the connecting line (output line) of the switching circuit and the Zener diode to each other.

Abstract: Provided is a display device with which it is possible to implement a novel display. A display device comprises: a display unit which displays a display image in a display region; a framing unit is configured from a plurality of components; and a moving device which moves at least one of the plurality of components. The framing unit is segmented by moving at least one of the components by the moving mechanism. Prior to segmenting, the framing unit surrounds a partial region of the display region of the display unit. The display unit displays a different display image before and after the segmenting of the framing unit, and displays a notification image which fits the shape of the framing unit at least either before or after the segmentation of the framing unit.

Abstract: A shift position detection device that has excellent durability and is capable of detecting many shift positions is provided. The present invention is a shift position detection device provided with a shaft that is a moving body that touches and is displaced by a cam that is a displacement member displaced according to changes in the shift position of the transmission of a vehicle; a magnet that is displaced with the shaft; a magnetism detecting element that detects the displacement of the magnet and outputs a detection signal; a display device that displays a shift position on the basis of the detection signal of the magnetism detecting element; and a control device that controls the display device on the basis of the detection signal. A memory unit is provided for storing an output signal that controls the display device and is based on the detection signal of the magnetism detecting element, and the output signal, which is based on the detection signal and is stored in the memory unit, can be rewritten.

Abstract: A display device compresses light-emitting display of modifiable display luminance; a light sensor for detecting the surrounding brightness; and a control for adjusting the display brightness of the light-emitting display in response to a brightness value based on detected results of the brightness sensor. If absolute value of the difference between current and previously determined brightness values is less than a prescribed threshold value, the control determines that there is no change in brightness otherwise the central determines that there has been a change in brightness. Upon a determination of a predetermined number of times that a brightness change has occurred, the display luminance is adjusted in response to the current brightness value.

Abstract: Provided is a head-up display device that can detect background brightness with a simple constitution. A HUD device (1) is provided with: a display device (20) that outputs display light (L) that shows a display image; a combiner (50) that has a concave surface (50a) to which the display light (L) output by the display device (20) is incident, said combiner (50) concentrating the incident display light (L) so as to allow an observer (2) to see the display image from the concave surface (50a) side superimposed on a background from the front; and an optical sensor (31) that is positioned below the combiner (50) and detects the brightness of the light reaching that optical sensor (31). The combiner (50) has a light guide body (60) which is at the lower edge part thereof and is integrated with the combiner (50).

Abstract: A vehicle operating device with favorable operability is provided, the operating device having improved recognition accuracy of gestural operation conducted while holding a steering wheel. A vehicle operating device comprises an input unit that is provided on a steering wheel and that detects a user operation; and a control unit that determines the user operation detected by the input unit and that outputs a control signal for controlling a device; wherein, the control unit determines that the user operation is linear when a locus (L) of the user operation does not exceed a certain width (W). 1 unit operates the air-conditioner body based on the preset temperature.

Abstract: A combiner storage device is equipped with: a holder for holding a combiner; a first connection section that can rotate about a first fixed shaft, said first fixed shaft being positioned at one end of the first connection section, and the other end of the first connection section being connected to the holder; and a second connection section that can rotate about a second fixed shaft, said second fixed shaft being positioned at one end of the second connection section, and the other end of the second connection section being connected to the holder. The combiner can be moved from a projected state to a stored state by means of a four-link mechanism.

Abstract: Provided are a light emitting device and an organic EL element driving method wherein a light emission quality can be maintained by a self-repair without degrading the uniformity of light emission. A light emitting device is characterized in that the light emitting device comprises: a plurality of organic EL elements each of which is supplied with a current, thereby emitting a light; a constant current circuit that supplies a current to each of the organic EL elements; a reverse bias voltage circuit that applies a reverse bias voltage to each of the organic EL elements; and a switch circuit that connects the plurality of organic EL elements in series with the constant current circuit during light emission and that connects the plurality of organic EL elements in parallel with the reverse bias voltage circuit during application of the reverse bias voltage.

Abstract: Provided is a heads-up display device that stably achieves a low brightness display in which the display does not feel too bright in a dark environment at night, which further does not give a vehicle driver discomfort with continuous changes in brightness, and which has excellent white balance in the entire range of display brightness. A heads-up display device (1) is provided with an external light illuminance detection section (70) that detects the illuminance of external light and adjusts the display brightness (B) for display of images, which are displayed, on the basis of external light illuminance (P) measured by the external light illuminance detection section (70).

Abstract: An information providing device for a vehicle, comprising an in-car device having a display unit for displaying vehicle state information and a first control means for activating the display unit; and an external device having a second control for outputting external information. The display unit has a first display area for displaying predetermined information, and a second display area for displaying other information. The first control implements a first display mode for displaying the vehicle state information and a second display mode for displaying the vehicle state information and the external information. In the second display mode, the first control means activates the display unit so that the external information is displayed in the second display area.

Abstract: A vehicle instrument configured so that turning on and off the light sources without depending on inputted vehicle information enables the instrument to be illuminated in a visually effective manner. The instrument is provided with: input circuits into which vehicle information is inputted as electric signals and which are provided with resistors connected to light sources relating to the vehicle information; electric-potential adjustment circuits for adjusting the electric potentials of lines of wiring between the input circuits and the light sources on the basis of control signals from a controller and eliminating influence on the light sources from the vehicle information; and light source control circuits which, when influence on the light sources is eliminated by the electric-potential adjustment circuits, operate and visualize turning on and off of the light sources on basis of the control signals from the controller.