Abstract: According to an aspect, a display device, includes: a display panel having a display region in which a plurality of pixels are provided; a plurality of temperature sensors; and a control integrated circuit (IC) configured to control operations of the display panel and the temperature sensors. A plurality of temperature detection regions in which the temperature sensors are arranged are provided to overlap the display region. The display region has a plurality of partial regions that overlap the temperature detection regions, respectively. The control IC is provided capable of controlling the display region on a partial region basis. At least either signal lines of the display panel or scan lines of the display panel, and the temperature sensors are coupled to the control IC.

Abstract: A display system includes: a transmissive liquid crystal display panel; a scattering panel having a scattering area provided with a scattering portion; a temperature detector having a temperature detection area provided with a resistor element; a light source configured to emit projection light to the liquid crystal display panel; and a controller configured to control operations of the scattering panel and the light source based on an output of the temperature detector corresponding to a temperature of the resistor element. A display area of the liquid crystal display panel, the scattering area, and the temperature detection area overlap one another. The projection light that has passed through the display area and the scattering area is projected onto a light-transmitting projection target. When an output indicating that the temperature of the resistor element is a predetermined temperature or higher is acquired, the controller causes the scattering portion to scatter light.

Abstract: A temperature detection device includes: a detection part in which a first resistor element and a second resistor element having different relations between temperature variation and variation in an electric resistance value are provided; a switch provided capable of performing a switching operation so as to be coupled to one of a first circuit including wiring to which the first resistor element is coupled and a second circuit including wiring to which the second resistor element is coupled; a power supply circuit configured to apply a voltage to the one circuit coupled to the power supply circuit through the switch to generate an electric signal in the one circuit; and a controller configured to detect a temperature of the detection part based on a strength of the electric signal output from the one circuit. The controller is configured to periodically cause the switch to perform the switching operation.

Abstract: According to an aspect, a display system includes: a display apparatus; and a mirror apparatus configured to reflect an image from the display apparatus and project the image on a projection plate. The mirror apparatus includes: a region configured to reflect the image and divided into a plurality of partial regions; a temperature sensor configured to detect a temperature of each of the partial regions; a liquid crystal mirror disposed facing the temperature sensor and configured to be switched between a reflective state in which incident light is reflected and a transmissive state in which incident light is transmitted; and a control circuit configured to control the reflective state and the transmissive state in each of the partial regions depending on the temperature detected in the partial region.

Abstract: A head-up display includes: display panels, and a light guide configured to direct light from the display panels such that projection positions of images from display regions of the display panels join on the projection target. At least one of time division control and multiple display control is applied to the display panels. The time division control is operation control of the display panels such that the display panels project images at different timings. The multiple display control is operation control of the display panels in which partial regions are set in each display region such that the number of the partial regions corresponds to the number of the display panels, an image is output in one of the partial regions in the display region of each display panel such that the positions of the images projected by the display panels on the projection target differ from one another.

Abstract: According to an aspect, a personal authentication system is configured to execute fingerprint authentication processing by collating a first fingerprint image registered at fingerprint registration with a second fingerprint image acquired at personal authentication. The personal authentication system includes: a detection device configured to detect a touch position on a sensor and fingerprint data; and a control device configured to generate the first fingerprint image based on fingerprint data acquired at the fingerprint registration, segment the first fingerprint image into a plurality of first segmented images, and register the first segmented images.

Abstract: According to an aspect, a sensor system includes: a first device including a first controller and a first communicator; and a plurality of second devices each including an altitude sensor, a blood oxygen saturation level sensor, a second controller, and a second communicator. The second controller of the second device is configured to transmit altitude information measured by the altitude sensor and biometric information measured by the blood oxygen saturation level sensor to the first device through the second communicator. The first device has determination information comprising determination thresholds for a blood oxygen saturation level corresponding to different altitudes. The first controller is configured to warn that the blood oxygen saturation level is lower than the determination threshold corresponding to the altitude information based on the altitude information and the biometric information received from each of the second devices through the first communicator and the determination information.

Abstract: A display system includes: a transmissive liquid crystal display panel; a light control panel having an active area with a light control area; a temperature detector provided in the liquid crystal display panel and having a detection area with a resistive element; a backlight; and a controller. A display area of the liquid crystal display panel, the active area, and the detection area overlap on an optical path of a projection light. The light control panel is disposed at such an angle that, when the light control area is in a light reflection state, the light control panel reflects external light to a position out of the optical path and different from a position of the liquid crystal display panel. The controller causes the light control area to reflect light when an output indicating that the resistive element has a predetermined temperature or higher is obtained.

Abstract: According to an aspect, a display device, includes: a display panel having a display region in which a plurality of pixels are provided; a plurality of temperature sensors; and a control integrated circuit (IC) configured to control operations of the display panel and the temperature sensors. A plurality of temperature detection regions in which the temperature sensors are arranged are provided to overlap the display region. The display region has a plurality of partial regions that overlap the temperature detection regions, respectively. The control IC is provided capable of controlling the display region on a partial region basis. At least either signal lines of the display panel or scan lines of the display panel, and the temperature sensors are coupled to the control IC.

Abstract: According to an aspect, a display device includes: a display panel including a display surface; a sensor configured to detect an external object in proximity to or in contact with the display surface; an ultraviolet light emitter configured to emit ultraviolet light to the display surface; and a controller configured to control an operation of the ultraviolet light emitter. The controller increases an emission amount of ultraviolet light from the ultraviolet light emitter as the object approaches the display surface, and reduces the emission amount of ultraviolet light from the ultraviolet light emitter as the object recedes from the display surface.

Abstract: A display system includes: a transmissive liquid crystal display panel; a light control panel having an active area with a light control area; a temperature detector provided in the liquid crystal display panel and having a detection area with a resistive element; a backlight; and a controller. A display area of the liquid crystal display panel, the active area, and the detection area overlap on an optical path of a projection light. The light control panel is disposed at such an angle that, when the light control area is in a light reflection state, the light control panel reflects external light to a position out of the optical path and different from a position of the liquid crystal display panel. The controller causes the light control area to reflect light when an output indicating that the resistive element has a predetermined temperature or higher is obtained.

Abstract: A display device according to an embodiment of the present invention includes a display panel for displaying images, a lighting device provided corresponding to a first side face of the display panel, and a housing surrounding the display panel and the lighting device, the housing including a first opening provided in a front face corresponding to the display panel and a second opening in a side face. A light emitted from the lighting device enters the display panel from the first side face, a first portion of the incident light is emitted from the first opening, and a second portion of the incident light is emitted from the second opening through at least one portion of a second side face in the display panel corresponding to the first side face.

Abstract: A display system in an embodiment according to the present invention includes a display panel, a backlight located at a back surface side of the display panel and that emits light toward the display panel, a reflective panel located at a front surface side of the display panel and having a light receiving surface inclined obliquely in a direction perpendicular to an optical axis of the backlight, and a magnifying mirror disposed at a position where a reflected light from the reflective panel is received. The reflective panel includes a reflection region and a transmission region in the light receiving surface, and a position and a size of the reflection region and the transmission region are variable.

Abstract: A display system includes: a transmissive liquid crystal display panel; a scattering panel having a scattering area provided with a scattering portion; a temperature detector having a temperature detection area provided with a resistor element; a light source configured to emit projection light to the liquid crystal display panel; and a controller configured to control operations of the scattering panel and the light source based on an output of the temperature detector corresponding to a temperature of the resistor element. A display area of the liquid crystal display panel, the scattering area, and the temperature detection area overlap one another. The projection light that has passed through the display area and the scattering area is projected onto a light-transmitting projection target. When an output indicating that the temperature of the resistor element is a predetermined temperature or higher is acquired, the controller causes the scattering portion to scatter light.

Abstract: A temperature detection device includes a plurality of temperature sensors each including a temperature detection resistor element provided in a temperature detection region, and a storage unit configured to store therein unique information for each of a plurality of the temperature detection resistor elements. The temperature detection resistor element is provided for each of a plurality of partial temperature detection regions in the temperature detection region, and an externally provided control device reads out the unique information stored in the storage unit and detects a temperature for each of the partial temperature detection regions in the temperature detection region based on the unique information and an output potential that is output from the temperature sensor.

Abstract: A display system in an embodiment according to the present invention includes a display panel, a backlight located at a back surface side of the display panel and that emits light toward the display panel, a reflective panel located at a front surface side of the display panel and having a light receiving surface inclined obliquely in a direction perpendicular to an optical axis of the backlight, and a magnifying mirror disposed at a position where a reflected light from the reflective panel is received. The reflective panel includes a reflection region and a transmission region in the light receiving surface, and a position and a size of the reflection region and the transmission region are variable.

Abstract: A temperature detection device includes: a detection part in which a first resistor element and a second resistor element having different relations between temperature variation and variation in an electric resistance value are provided; a switch provided capable of performing a switching operation so as to be coupled to one of a first circuit including wiring to which the first resistor element is coupled and a second circuit including wiring to which the second resistor element is coupled; a power supply circuit configured to apply a voltage to the one circuit coupled to the power supply circuit through the switch to generate an electric signal in the one circuit; and a controller configured to detect a temperature of the detection part based on a strength of the electric signal output from the one circuit. The controller is configured to periodically cause the switch to perform the switching operation.

Abstract: According to an aspect, a display device includes: a display panel including a display surface; a sensor configured to detect an external object in proximity to or in contact with the display surface; an ultraviolet light emitter configured to emit ultraviolet light to the display surface; and a controller configured to control an operation of the ultraviolet light emitter. The controller increases an emission amount of ultraviolet light from the ultraviolet light emitter as the object approaches the display surface, and reduces the emission amount of ultraviolet light from the ultraviolet light emitter as the object recedes from the display surface.

Abstract: A liquid crystal display device with a plurality of pixels arranged in a matrix includes a first substrate, a second substrate, a liquid crystal interposed between the first and the second substrates, and a detection circuit. The second substrate includes a detection electrode for a touch panel. The respective pixels have pixel electrodes and counter electrodes. The counter electrode divided into a plurality of blocks is provided common to the respective pixels on a plurality of consecutive display lines. The counter electrode divided into blocks serves as the scanning electrode for the touch panel. The detection circuit includes a calibration capacity element provided for each of the detection electrodes, is having one end connected to the detection electrode, and supplies a calibration voltage to the other end of the calibration capacity element in a touched position detection process.

Abstract: A liquid crystal display device with a plurality of pixels arranged in a matrix includes a first substrate, a second substrate, a liquid crystal interposed between the first and the second substrates, and a detection circuit. The second substrate includes a detection electrode for a touch panel. The respective pixels have pixel electrodes and counter electrodes. The counter electrode divided into a plurality of blocks is provided common to the respective pixels on a plurality of consecutive display lines. The counter electrode divided into blocks serves as the scanning electrode for the touch panel. The detection circuit includes a calibration capacity element provided for each of the detection electrodes, having one end connected to the detection electrode, and supplies a calibration voltage to the other end of the calibration capacity element in a touched position detection process.